documents.worldbank.orgdocuments.worldbank.org/curated/en/915151520353831656/pdf/SF… · Reference No.: Guohuangping Zhengjiazidi [2606] Midterm Restructuring Construction Components

Reference No.: Guohuangping Zhengjiazidi [2606]

Midterm Restructuring Construction Components of

Qinghai Xining Urban Transport Project via WB Loan

Environment Impact Assessment

（Final Draft）

Construction Agency: PMO of Qinghai Xining Urban Transport Project

Prepared By: Zhongnan Safe Environment Tech Institute Company, Ltd

Wuhan in October, 2017

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Midterm Restructuring Construction Components of


Environment Impact Assessment

General Manager: Zhou Junbo

Deputy General Manager: Zhang Bin

Director of No. 2 EIA Institute: Li Tao

Entity: Zhongnan Safe Environment Tech Institute Company, Ltd

Address: No.2 Zhongnan Road Wuchang District, Wuhan, PRC Postcode: 430071

Tel&Fax: (027) 87338520

Project Name: Midterm Restructuring Construction Components of


Document Type: Environment Impact Assessment (EIA) Report

Evaluation Scope: Transport & Transportation

Authorized Representative: Zhou Junbo (Seal)

Prepared by: Zhongnan Safe Environment Tech Institute Company, Ltd (Seal)

Midterm Restructuring Construction Components

of Qinghai Xining Urban Transport Project via WB Loan

Environment Impact Assessment (EIA) Report

Name list of EIA Report Authors

Principal

Investigator

&

Chief Author

Names

Professional

Qualification

Certificate

No.

Registration

(License) No. Profession Category Signatures

Zhang

Qi 00016509 A260605207 Transport & Transpiration

Key

Authors

No. Names

Professional

Qualification

Certificate

No.

Registration

(License) No. Report Inputs Signatures

1 Zhang

Qi 00016509 A260605207 Overview, Conclusions

2 Mo

Qiong 00013232 A26060350800

EI Prediction & Evaluation,

Environmental Safeguards,

EI Analysis of Economic Gains &

Losses,

Environment Management & Monitoring

3 Wen

Wei 0011461 A260606503 Physical Overview, Physical Analysis

4 Li Tao 0012350 A260606608 Report Review/Certification

Other EIA Report Authors: Zhang Jiaji and Zhao Xiaomeng

Contents

Preface ....................................................................................................................................... 6

1 Project Overview ............................................................................................................. 10

1.1 PROJECT NECESSITY .................................................................................................... 10

1.2 EVALUATION OBJECTIVES.............................................................................................11

1.3 EVALUATION BASIS ..................................................................................................... 12

1.4 EVALUATION CRITERIA ................................................................................................ 15

1.5 EVALUATION GRADING AND SCOPE ............................................................................. 17

1.6 EVALUATION PRIORITIES AND FACTORS ...................................................................... 18

1.7 FORECASTING & EVALUATION PERIODS ...................................................................... 19

1.8 METHODOLOGY OF EVALUATION TECHNIQUES ........................................................... 19

1.9 EVALUATION PROCESS ................................................................................................. 20

1.10 ENVIRONMENT PROTECTION TARGETS ........................................................................ 20

2 Midterm Restructuring Project Overview .................................................................... 40

2.1 NEWLY PROPOSED COMPONENTS ................................................................................ 40

2.2 PRESENT STATUS OF URBAN ROADS ............................................................................ 42

2.3 URBAN ROADS COMPONENT ....................................................................................... 48

2.4 KEY TECHNICAL INDICATORS AND TRAFFIC FLOW FORECASTING ............................... 74

2.5 LAND ACQUISITION FOR NEWLY PROPOSED COMPONENTS ......................................... 79

2.6 EARTHWORK ............................................................................................................... 79

2.7 CONSTRUCTION ORGANIZATION AND SCENARIO ......................................................... 80

2.8 PUBLIC TRANSPORT (PT) COMPONENT ....................................................................... 84

2.9 INTELLIGENT TRAFFIC SYSTEM (ITS) COMPONENT .................................................... 84

2.10 MR PROJECT PROGRESS AND INVESTMENT ................................................................. 86

3 MR Project Analysis ........................................................................................................ 86

3.1 COMPLIANCE ANALYSIS OF INDUSTRIAL POLICIES AND PLANS ................................... 86

3.2 ENVIRONMENTAL IMPACT ANALYSIS ........................................................................... 87

4 Project Area Overview .................................................................................................... 98

4.1 NATURAL ENVIRONMENT ............................................................................................ 98

4.2 ENVIRONMENT STATUS SURVEY AND EVALUATION ................................................... 101

5 Forecast and Evaluation of Environmental Impacts .................................................. 118

5.1 FORECAST AND EVALUATION OF ENVIRONMENTAL IMPACTS ......................................118

5.2 FORECAST & EVALUATION OF ENVIRONMENT IMPACTS DURING THE OPERATION...... 128

5.3 RISK ANALYSIS OF ENVIRONMENTAL ACCIDENTS ..................................................... 175

6 Environmental Protection Measures and their Technical and Economic Rationality

178

6.1 ENVIRONMENTAL PROTECTION REQUIREMENTS DURING THE DESIGN PERIOD .......... 178

6.2 RELATED REQUIREMENTS OF BIDDING & TENDERING FOR PHYSICAL CONSTRUCTION

179

6.3 MEASURES FOR PREVENTION & CONTROL OF POLLUTION DURING THE CONSTRUCTION

180

6.4 MEASURES OF PREVENTION & CONTROL DURING THE PROJECT OPERATION ............. 186

6.5 PRECAUTION MEASURES FOR ROAD RISK ACCIDENTS .............................................. 189

6.6 ENVIRONMENT PROTECTION ACCEPTANCE OF PROJECT COMPLETION ...................... 189

7 Analysis of Economic Gains / Losses of Environment Impacts ................................ 192

7.1 INVESTMENT ESTIMATION OF ENVIRONMENTAL PROTECTION ................................... 192

7.2 PROJECT ENVIRONMENTAL LOSSES ........................................................................... 193

7.3 ANALYSIS OF SOCIAL BENEFITS ................................................................................ 193

7.4 SUMMARY ................................................................................................................. 194

8 Environmental Management & Monitoring Plan ...................................................... 194

8.1 ENVIRONMENT MANAGEMENT .................................................................................. 194

8.2 ENVIRONMENTAL MONITORING PLAN ....................................................................... 201

8.3 ENVIRONMENTAL SUPERVISION ................................................................................. 203

9 Conclusions and Recommendations ............................................................................ 209

9.1 PROJECT BASIC INFORMATION ................................................................................... 209

9.2 ENVIRONMENTAL QUALITY STATUS .......................................................................... 209

9.3 ENVIRONMENTAL IMPACTS AND MEASURES DURING THE CONSTRUCTION ................ 210

9.4 IMPACT ASSESSMENT DURING THE OPERATION ......................................................... 212

9.5 COMPLIANCE ANALYSIS OF INDUSTRIAL POLICIES AND PLANNING ........................... 213

9.6 PUBLIC PARTICIPATION .............................................................................................. 214

9.7 GENERAL CONCLUSIONS ........................................................................................... 214

I. Attachments

Attachment 1. Letter of Authorization for Project EIA

Attachment 2. Report of Project Environment Quality Present Status Monitoring

Attachment 3. Comments of the Expert Review Panel

Attachment 4. Public Disclosure of Profile Registration of Single Source Qinghai EIAs

II. Maps/Diagrams

1. Sketch Map of Project Geographic Position

2. Sketch Map of Project Layout

3. Distribution Map of Project Surrounding Areas / Environment Protection Targets

4. Point Location Map of Project Environment Present Status Monitoring

5. Contour Map of Forecasting of Project Atmospheric Pollutants

6. Contour Map of Noise Distribution Values Projected during Operational Period

III. Form

1. Registration Form for EP Review/Approval of Constructional Projects

6

Preface

Project Overview:

For the purpose of mitigating such negative effects as traffic congestion, traffic accidents and

environment pollutions caused by the rapid growth of vehicles in Xining Municipality,

enhancing the levels of its public transport (PT) service and traffic management and drawing

on the advanced practices of urban PT construction of national and international cities, the

Xining Municipal Development and Reform Commission (DRC), in collaboration with relevant

bureaus or commissions of finance, construction and transport, has proposed the “Qinghai

Xining Urban Transport Project via WB Loan”. In October, 2011, the project was approved by

the National DRC and the Ministry of Finance (MOF) and enlisted in the program of project

options of WB’s lending pipeline for the fiscal period from 2012 to2014. The project will have

a WB loan of USD 120 million used for the improvement of urban roads, PT management,

intelligent transport system (ITS) and institutional capacity building (ICB) in Xining

Municipality.

The Project Management/Construction Office (PMO) of the Qinghai Xining Urban Transport

Project (Hereafter referred to as “the project”) entrusted the Shanghai Kejing Consultancy

Company, Ltd to have completed the feasibility study (FS) report of the project in January, 2013.

The project falls into the category of transport improvement, having four important components

such as urban roads, PT, ITS and ICB. The urban roads component covers newly built Xicheng

Avenue (starting from Nanraocheng Expressway in the south to Chaidamu Road in the north,

having a total length of 3.7 km and a planned width of 50 m), Western Extension of Wusixi

Road (starting from No.4 Road in the east to Xicheng Avenue in the west, having a total length

of 3.49 km and a planned width of 60 m), No. 5 Road (starting from Western Extension of

Wusixi Road in the south to Chaidamu Road in the north, having a total length of 1.02 km and

a planned width of 40 m), involving such works as roads, bridges, drainage, greenery, lighting

and auxiliary traffic facilities. The PT component includes integrated PT corridor of Wusi Road

(15.6 km long), Yanxiaocun Bus Interchange Hub (located in the Yanxiaocun Village of

Xichuan, with acquired land of 14.19 hm²) and counterpart Planned Roads I and II to be

constructed for collection and distribution. The ITS component is designed for the Wusi

Corridor, involving 10 constructional activities like upgrading of traffic signal control systems

and construction of traffic signal wire system. The ICB component comprises four aspects such

as related studies on urban transport, project management and technical support, professional

technology and competences and mass publicity and education.

According to the requirements of relevant documents such as "Law on Environmental Impact

Assessment of the People's Republic of China" and "Regulations of Environmental Protection

Management for Constructional Projects"(State Council Decree No. 253), the PMO

commissioned the Hubei Province Institute of Environmental Sciences to carry out the EIA

work of the project. The Qinghai Provincial Environmental Protection Bureau approved the

EIA of the project on 11 September 2013 based on the document entitled “Approval of the EIA

Report of Qinghai Xining Urban Transport Project via WB Loan” (Reference No.: Qinghuanfa

[2013] 418).

Project Background and Rationale:

During the 13th Five-Year Plan period, Xining Municipality will still be in the stage of

accelerating the promotion of urbanization. By reinforcing the concept of coordinated

development, Xining will make great efforts to promote urban transformation and upgrading,

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coordinate the integration of various layout elements such as space, function and infrastructure,

thus creating an important node city along the "Silk Road” economy belt. Taking it as a

strategic development orientation, the municipality has set a number of development goals,

including accelerating the promotion of infrastructure construction and reinforcing the

construction of integrated urban traffic system. They will be achieved by completing a series of

key projects regarding railways, highways, urban roads, rail transit, PT, ITS and urban

greenways. In the meantime, Xining will actively promote a low-impact development and

construction mode, construct a “sponge city” pilot zone, and accelerate the construction of

common utility tunnel. At present, Xining has been included in the list of national pilot cities

for the construction of new integrated urbanization, sponge cities and common utility tunnels.

In 2013, Xining Municipality was enlisted in the second batch of cities for creating a “Public

Transit Metropolis” for demonstration in China, with a constructional period from 2014 to 2017.

In September 2012, the municipality started carrying out the feasibility study on the urban

transport project. The project consists of four components: urban roads, PT, ITS and ICB. It is

a demonstration project that is meant to introduce the World Bank's capital and technology to

address issues regarding urban transport in the PRC. Its core part is Wusilu integrated public

transport corridor, thus laying a solid foundation for the implementation of the dedicated bus

lanes of No.9 Rout and providing valuable technical solutions for the construction of other

dedicated bus lanes and bus rapid transit (BRT) systems in Xining.

The project has a total investment of USD 250 million, of which USD 120 million is from the

WB loan. The WB loan came into effect in May 2014, with its closing date of September 30,

2019. Since its implementation, the project has progressed smoothly. By March 2017, 15

contracts had been signed. The contract values have been reduced by 45% compared to the

original plan due to slightly lower bid price. Meanwhile, as the exchange rate of U.S. dollar has

changed from the previous rate of 6.1 at the time of signature to the current rate of 6.8 or so,

resulting in part of loan saving. It is noted that the capital for civil engineering works along the

Wusilu public transport corridor are addressed by the counterpart fund of the municipal

government and the capital will also have fund savings. Given the fund reserved for variation

of signed contracts, the total amount of fund saving will reach USD 43 million. In view of the

uncertainty of contracts that are yet to be signed, the actual fund saving would be much more.

In order to make rational use of the fund saving of the World Bank loan, there is a need to carry

out the project midterm restructuring by proposing new components. Newly proposed

components are developed based on the current urban development and construction needs in

Xining, including the improvement and expansion of urban roads, the equipment with new

buses and on-board units (OBU) for monitoring, and the perfection of the ITS. The newly

proposed components will continue to uphold the project development objectives (PDOs) of

the Project, that is, to provide fast, comfortable and safe services for the travel of urban residents

in Xining Municipality by implementing a demonstration corridor project characterized by

people first, bus priority and green transportation.

Based on the already approved construction contents under the project, the newly proposed

works are added as part of the project midterm restructuring. They include the Qiyi Road

Integrated Improvement Works, the Wuyi Road Slow-moving Improvement Works and the

Changjiang Road Improvement and Expansion Works, the Xiguan Avenue Improvement and

Expansion Works, involving constructional activities like the construction of urban roads, the

improvement of public transport and the provision of ITS. The newly proposed construction

activities are additional in terms of content, thus causing no adjustment or change to their

original construction contents of the project. Therefore, the scope of EIA is limited to the related

construction contents of newly proposed components of the project midterm restructuring.

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Major Constructional Activities:

The project comprises 3 primary components such as urban roads, PT and ITS, covering

Chengzhong District, Chengdong District and Chengxi District.

Urban road component involves the Qiyi Road Integrated Improvement Works, the Wuyi Road

Slow-moving Improvement Works, the Changjiang Road Improvement and Expansion Works

and the Xiguan Avenue Improvement and Expansion Works. Specifically, for the Qiyi Road

Integrated Improvement Works with a total length of 5.13 km, its road sections to be improved

are the Qiyi Road (from the Changjiang Road to the Delingha Road), the Delingha Road (from

the Qiyi Road to the Bayi Road) and the Bayi Road (from the Delingha Road to the Huangzhong

Road). The Qiyi Road and the Delingha Road are secondary trunk urban roads, both of which

have 6 bi-directional lanes, with a red line width of 30 m and a designed speed of 40 km/h. The

Bayi Road is a primary trunk urban road, which has 8 bidirectional lanes, with a red line width

of 40 m and a designed speed of 60 km/h. For the Wuyi Road Slow-moving Improvement Works

with a total length of 0.64 km, it is a primary trunk urban road, which has 6 bidirectional lanes,

with a red line width of 35 and a designed speed of 40 km/h. For the Changjiang Road

Improvement Works with a total length of 1.41 km, it is a primary trunk urban road, which has

8 bidirectional lanes, with a planned red line width of 35-55m and a designed speed of 50km/h.

For the Xiguan Avenue Improvement and Expansion Works with a total length of 0.42k, it is a

primary trunk urban road, which has 8 bidirectional lanes, with a planned red line width of 46

m and a designed speed of 50km/h.

PT component involves the purchase of new pure electrical buses and their OBU passenger

flow analysis system. While ITS component includes studies on the connectivity of newly

added platforms, video forensics system for off-road traffic violations, image forensics system,

vehicle intelligent monitoring system, high spotlights and Hawkeyes.

EIA Process

According to relevant requirements of the "Law on Environmental Impact Assessment of the

People's Republic of China ", the "Regulations of Environmental Protection Management for

Constructional Projects" (State Council Decree No. 253) and the "Directories of Classification

Management of Environmental Impact Assessment for Construction Projects" (Environmental

Protection Order No.33 of the People's Republic of China Ministry), for Projects involving "T

urban transport facilities, urban roads, expressways to be newly built and expanded, primary

trunk roads, an EIA report shall be prepared. Therefore, the project needs preparing an EIA

report.

In May 2017, the PMO entrusted Zhongnan Safe Environment Technology Institute Company,

Ltd to undertake the environmental impact assessment of the project. After being entrusted , the

company immediately organized relevant technicians to conduct a detailed field investigation,

collecting information and data on the project sites and their surroundings. On this basis, the

company completed the preparation of the “Environmental Impact Report on the Project Mid-

term Restructuring” (submission draft for review).

On September 7, 2017, the Xining Municipal Environmental Protection Bureau hosted a

technical appraisal conference for the EIA report of the project midterm restructuring, thus

having formed the opinions from the appraisal experts. After the conference, according to the

comments given by the appraisal experts and the related issues discussed, the research project

team from our company carried out careful revisions, supplements and refinements for the EIA

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report. On this basis, the EIA report (submission draft for approval) was completed. Now, it is

presented to the construction agency and then will be submitted to the Xining Municipal

Environmental Protection Bureau for review and approval.

Conclusions:

The Qinghai Xining Urban Transport Project meets relevant planning requirements. The project

will generate a certain amount of environmental pollution from waste gas, sewage, noise and

solid waste in the process of construction and operation. After the environmental safeguards

proposed in this EIA report are strictly adopted and the plans of environmental management &

monitoring and of total major pollutants amount control implemented, the environmental

impact of the project on its surroundings can be controlled within the permissible range of

relevant national standards and requirements and can produce considerable social, economic

and environmental benefits. In accordance with relevant national laws and regulations as well

as the requirements set forth in the EIA report, construction agencies shall adequately

implement various measures of pollution prevention and control, strictly execute the "Three

Simultaneous Steps" system of environmental protection and constantly reinforce

environmental management. Taking them as a prerequisite for the project implementation, the

EIA research project team believes that the project construction is environmentally feasible.

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1 Project Overview

1.1 Project Necessity

(1) Refining Road Network, thus enhancing its Travel Efficiency and Carrying Capacity

Although there has been great improvement in the construction of urban roads in Xining

Municipality in recent years, they are still lagging behind, failing to satisfy needs of

socioeconomic development and great demand of modern transport. Undoubtedly, most of

transport facilities are outdated overtime and their technical criteria are inconsistent with

modern transport development, thus being unable to afford and provide high quality services

for urban transport. Through the implementation of the project, the road networks in the

municipality will be effectively improved and the entire urban road network system expanded.

Construction is very necessary and urgent. Therefore, it is indispensible and urgent to carry out

the project construction.

(2) Accommodating Rapidly Developing Urbanization & Mechanization, thus Mitigating

Urban Traffic Congestion

With the improvement of residents' living standards, the ownership rate of cars in Xining is

increasingly high. The number of motor vehicles retained has been growing year by year, with

a dramatic increase from 421,000 cars at the end of 2015 to 490,000 cars in 2016. There are an

increasing number of urban road sections with serious traffic congestion and prolonged traffic

jam duration. Through improving road conditions and constructing public transport corridors,

the project will effectively enhance the carrying capacity of the roads and the service of public

transport services, thus mitigating urban traffic congestion in the municipality.

(3) Improving Operational Conditions of Public Transport, thus Satisfying its future Increasing

Demand

With the development of urbanization, the demand for modern public transport in Xining will

be significantly increasing. It is often observed that present bus operation conditions in the city

have seriously hampered the enhancement of passenger-carrying capacity and service level of

public transport, thus making it difficult to accommodate the sustainable growth of future public

transport demand. The implementation of integrated public transport corridor construction will

greatly improve the bus operation conditions by laying out dedicated bus lanes, implementing

the policy of bus signal priority at the intersections and designing bus traveling priority at

strategic points so as to improve the punctuality rate and reliability of bus operations, to increase

bus running speed, to reduce delays at intersection and at arrival and departure stops. In the

meanwhile, it will reduce travel time of urban residents, thus increasing the competitiveness

and attractiveness of public transport.

(4) Promoting TOD land Development, thus Improving the Living Environment of Residents

The construction of public transport corridors can promote the residence and employment of

local population to be concentrated on their both sides. Meanwhile, high-density complex TOD

land development with residential, commercial, office and public facilities can be carried out

in the surrounding areas centering on public transport stations, thus achieving a compact city

development.

The improvement of urban roads can effectively address such environmental issues as dust

pollution, noise pollution and sewage pollution caused by damaged roads, thus ensuring the

11

environmental quality of local residents in the region. The upgrading and transformation of

transport, greening and lighting facilities as well as the strengthening of traffic management

after the roads have been put into operation will improve the quality of transport services and

enhance the comfort and safety of local residents.

(5) Improving Slow-moving Traffic Environment, thus Promoting Rationalization of Travel

Means and Structure

The core idea of the construction of urban infrastructure should be to improve the life quality

of local residents as well as to protect the environment. From land saving, energy use and

environment pollution reduction to travel cost and beneficiary analysis, slow-moving is a

transport means of low cost, less pollution, savings of land resources and space, which is

suitable for all travelers. In a sense, it is a green transport system that embodies the idea of

“Returning to Nature”. By improving the environment of slow-moving traffic and establishing

a good interchange system, it is possible to promote the desired travel mode of "slow-moving

+ public transport", thus easing the "urban disease" of traffic congestion and promoting the

sustainable development of Xining Municipality.

(6) Enhancing the Service and Management Levels of Urban Transport

The contents regarding urban ITS system in Xining need to be further improved. In particular,

in order to support the construction of urban public transport corridors, it is necessary to

construct more corresponding contents in terms of bus OBU passenger flow analysis and off-

site traffic law enforcement, thus further improving the service and management levels and

facilitating of safe travel of urban residents.

(7) Promoting the Traffic Safety of Urban Roads , thus Strengthening their Corresponding

System Construction

Road traffic safety is essential to the travel safety of local urban residents, affecting the city's

stability and harmony as well as its sustainable socioeconomic development. The construction

of intelligent traffic system (ITS) is an important instrument for ensuring urban security and

harmonious development. The construction of intelligent traffic system helps to improve urban

traffic safety in two important aspects of hardware infrastructure and information technology.

On the one hand, the input and updating of hardware infrastructure can effectively solve the

imbalance between current demand of urban transport and supply of urban transport

infrastructure, improve the public transport service quality, ease the pressure of traffic on the

ground, guide the rational layout of cities, and establish a safe, convenient and coordinated

public transport network structure. On the other hand, intelligent information technology can

be employed to promote the coordinated development of transportation and cities, thus

gradually realizing scientific decision-making of transportation, modernizing management and

maximizing operational efficiency of transportation infrastructure. Only this can accommodate

ever-increasing demand for public transportation, greatly enhance comprehensive urban

management ability , reduce the rate of traffic accidents and improve the level of urban public

transport safety.

1.2 Evaluation Objectives

The construction and operation of newly proposed components of the project for midterm

restructuring will have a limited adverse impact on the project environment. Based on the field

12

investigation of present environmental status and survey on public opinions in the project area,

the research project team has carried out a physical pollution analysis, predicted the

environmental impact of the project construction, developed feasible measures of pollution

control and impact mitigation. They will provide basis for project decision-making and offer

guidance for environmental protection design as well as environmental management during the

construction and operation period of the project, thus achieving a situation where integrated

economic, social and environmental benefits are achieved at the desired level through the

project construction. They can be achieved by the following:

(1) Evaluating the impacts of various environmental factors brought about by various activities

in the design, construction and operation of the project, thus providing a solid basis for

optimization of route selection;

(2) Investigating, monitoring and understanding the present status of environment quality of the

project sites, then forecasting the environmental impact and the extent of ecological destruction

caused by the project construction, thus working out feasible mitigation or compensation

measures to effectively curb negative environmental effects in the project construction;

(3) Providing the basis for environmental management during the construction and operation

of the project, thus satisfying relevant national requirements regarding environmental

protection and local planning of construction projects as well as providing scientific rationality

for economic development and environmental planning surrounding the project sites.

1.3 Evaluation Basis

1.3.1 Laws and Regulations

(1) Law on Environmental Protection of the People’s Republic of China (No.9 Order of

President of the People’s Republic of China, January 1, 2015);

(2) Law on Prevention & Control of Water Pollution of the People’s Republic of China (No.87

Order of President of the People’s Republic of China, revised on February, 2008 and

executed on June 1, 2008);

(3) Law on Prevention & Control of Air pollution of the People’s Republic of China (No.31

Order of President of the People’s Republic of China, January 1, 2016);

(4) Law on Prevention & Control of Noise Pollution of the People’s Republic of China (No.77

Order of President of the People’s Republic of China, March 1, 1997);

(5) Law on Prevention & Control of Solid Wastes Pollution of the People’s Republic of China

(No.5 Order of President of the People’s Republic of China, November 7, 2016);

(6) Law on Environmental Impact Assessment of the People’s Republic of China (No.77 Order

of President of the People’s Republic of China, September 1, 2016);

(7) Law on Land Administration of the People’s Republic of China (The Standing Committee

of the Tenth National Congress of the People’s Republic of China, August 28, 2004);

(8) Action Plan of Prevention & Control of Air Pollution (Reference No. Guofa [2013] 37,

September 10, 2013);

(9) Action Plan of Prevention & Control of Soil Pollution (Reference No. Guofa [2016] 31,

May 28,2016);

(10) Action Plan of Prevention & Control of Water Pollution (Reference No. Guofa [2015] 17,

April 16, 2015);

(11) Regulations of Environmental Protection for Constructional Projects (No.253 Order of the

State Council of the People’s Republic of China, November, 1998).

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1.3.2 Ordinances / Regulations from National Ministries or Commissions

(1) Directories of Restructuring of Industrial Structures (Year 2011 Version) (No.9 Order of the

National Development and Reform Commission of the People’s Republic of China, revised

in 2013);

(2) Directories of Classification Management of Environmental Impact Assessment for

Construction Projects (No. 33 Order of the Ministry of Environment Protection of the

People Republic of China, executed on June 1, 2015);

(3) Notification on the Issuance of “Policy on Technology of Prevention & Control of Land

Surface Transport Noise Pollution” (Reference No.: Huanfa [2010] 7 of the Ministry of

Environment Protection of the People’s Republic of China, executed on January 11, 2010);

(4) Guidance Opinion on Strengthening Prevention & Control of Environment Noise Pollution

and Improving Noise Environment Quality of Urban and Rural Areas (Reference No.

Huanhua [2010] 144 of the Ministry of Environment Protection of the People’s Republic of

China, executed on December 15, 2011);

(5) Notification on Relevant Issues regarding Environment Noise in the Environmental Impact

Assessment for Construction Projects involving Highways, Railways (including Metro)

(Reference No. Huanfa [2003] 94 of the former State Environment Protection

Administration);

(6) Notification on “Temporary Methods for Public Participation in the Environmental Impact

Assessment” (Reference No.: Huanfa [2006] 28 of the former State Environment Protection

Administration);

(7) Notification on Strengthening Environmental Impact Assessment of Highway Planning and

Construction (Reference No.: Huanfa [2007] 184 of the former State Environment

Protection Administration);

(8) Methods for Environmental Protection and Management of Transport Construction

Projects (No. 5 Year 2003 Oder of the Ministry of Transport & Transportation of the

People’s Republic of China);

(9) Notification on Time-limited Forbiddening of Mixing Concrete on Urban District Sites

(Reference No.: Shanggaifa [2003]341 of the Ministry of Commerce, the Ministry of Public

Security, the Ministry of Construction and the Ministry of Transport & Transportation of

the People’s Republic of China);

(10) Notification on Strengthening Environmental Impact Assessment of the Western China

(Reference No.: Huanfa [2011] 150).

1.3.3 Local Regulations

(1) Methods for Implementing the “Law on Environment Protection of the People’s Republic

of China” in Qinghai (August, 1994);

(2) Notification on Opinion on Further Strengthening Environment Protection of Highway

Construction (Reference No.: 2002 [60] of the Qinghai Provincial Government);

(3) Methods for Implementing the “Law on Land Administration of the People’s Republic of

China” in Qinghai (Revised in 2006) (On October 1, 2006);

(4) Methods for Implementing the “Regulations of Prevention & Control of Environmental

Noise Pollution of the People’s Republic of China” in Qinghai (No.4 Order of the Qinghai

Provincial Government, on May 14, 1993);

(5) Outline of Ecological Construction Planning in Qinghai (The Standing Committee of the

Qinghai Provincial People’s Congress, on May 27, 2005);

(6) Water Environment Functional Zoning in Qinghai (Reference No.: Qingzhenfa (2004) 64,

on June 3, 20040);

(7) Regulations of Prevention & Control of Water Pollution in the Huangshui River Catchments

in Qinghai (The Standing Committee of the Qinghai Provincial People’s Congress, on

September 27, 2013);

14

(8) Notification on Printing and Issuing the Year 2015 Implementation Plan for Prevention &

Control of Air Pollution in the Eastern City Groups Taking Xining as the Focus by the

General Office of the Qinghai Provincial Government (Reference No.: Qingzhengban

[2015]90, on June 18, 2015);

(9) Notification on Forwarding the Document of “Stipulations for Grading Approval of

Documents of EIA for Construction Projects in Qinghai” of the Provincial Environment

Protection Bureau by the General Office of the Qinghai Provincial Government (Reference

No.: Qinghaizhenban [2010] 26);

(10) Quotas for Water Use in Qinghai (Reference No.: [2015] 63);

(11) Regulations for Environment Management in Xining (Approved by the Qinghai Provincial

People’s Congress on November 24, 2011);

(12) Water Environment Functional Zoning in Xining Municipality (Reference No.;

Ningzhenban 2005 [114] of the Xining Municipal Government, on July 8, 2005);

(13) Notification on Printing and Issuing the Document of the Plan of Prevention & Control of

Water Pollution in Xining Municipality by the Xining Municipal Government (Reference

No.: [2016] 161);

(14) Methods for Management of Urban Constructional Garbage and Physical Dregs Soil in

Xining Municipality ( On June 1, 2004);

(15) Methods for Management of Urban Constructional Garbage in Xining Municipality (on

October 1, 2012);

(16) Guideline for Management of Flying Dust on Construction Sites in Xining Municipality

(the municipal bureaus of construction, urban management, environment protection and real

estate, on September 10, 2013);

(17) Notification on Printing and Issuing the Document of “Adequately Implementing the Work

Plan of Operation Details on Evaluation Methods for Executing Action Plan of Prevention

& Control of Air Pollution in Xining Municipality by the Xining Municipal Government (On

December 22, 2014);

(18) Regulations for Prevention & Control of Air Pollution in Xining Municipality (Reference

No.: Ningzhenban (2016) 41, executed on March 1, 2016);

(19) Regulations for Environment Protection in Xining Municipality (The 26th Conference of

the Standing Committee of the 11th Qinghai Provincial People’s Congress, on January 1,

2012);

(20) Methods of Management of Civilized Physical Construction of Constructional Projects in

Xining Municipality (No.140 Order of the Xining Municipal Government, on August 1,

2015).

1.3.4 Evaluation Technical Documents

(1) General Outline of EIA Technical Guidelines (HJ2.1-2016);

(2) Atmospheric Environment of EIA Technical Guidelines (HJ2.2-2008);

(3) Surface Water Environment of EIA Technical Guidelines (HJ/T2.3-93);

(4) Noise Environment of EIA Technical Guidelines (HJ2.4-2009);

(5) Ecological Impacts of EIA Technical Guidelines (HJ19-2011);

(6) EIA Norms for Highway Construction Projects (JTG B03-2006);

(7) Policy on Technology of Prevention & Control of Land Surface Transport Noise Pollution

(Reference No. Huafa [2010] 7);

(8) Design Norms for Sound Insulation of Civil Buildings (GB5011-2010);

(9) Technical Specification for Noise Environment Functional Zoning (GB / T 15190-2014).

1.3.5 Related Documents for Project Rationale

(1) Letter of Authorization for Project EIA (See Attachment 1);

(2) Project Feasibility Study Report (Shanghai Kejing Consultancy Company, Ltd, in

September, 2017).

15

1.4 Evaluation Criteria

1.4.1 Ambient Air

(1) Quality Criteria

For ambient air quality of the project, Grade II criteria contained in the Ambient Air Quality

Criteria shall be implemented (see Table 1.4-1).

Table 1.4-1 Ambient Air Quality Criteria（GB3095-2012）

Pollutants Standard Limit（mg/m³）

Average (24 hours) Average (1 hour)

NO2 0.08 0.2

CO 4.00 10.00

TSP 0.3 ---

PM10 0.15 ---

(2) Emission Criteria

For emission of air pollutant, the monitoring concentration limit of unorganized emission

contained in the Integrated Emission Criteria of Air Pollutants (GB16297-1996) is proposed to

be implemented (See Table 1.4-2).

Table 1.4-2 Integrated Emission Criteria of Air Pollutants (GB16297-1996)

Pollutants Monitoring Concentration Limit Point of Unorganized Emission

(mg/m³)

Particulate Matters

（TSP） Peripheral Concentration Highest Point 1.0

1.4.2 Noise Environment

(1) Quality Criteria

According to the Xining Noise Environmental Functional Zoning (1993) and the Technical

Norms of Noise Environmental Functional Zoning (GB / T15190-2014), within the evaluation

scope of the project, Category 4a standards contained in the Noise Environment Quality Criteria

(GB3096-2008) shall apply to the southern side of the Qiyi Road (from the Changjiang Road

to the Jianguo Road), to the eastern side of the Changjiang Road (from the Qiyi Road to

Binghenan Road) and the eastern and western sides of the Wuyi Road within 50 m of boundary

lines; category 1 standards contained in the Noise Environment Quality Criteria GB3096-2008）shall apply to those roads out of 50 m of boundary lines. The former criteria shall also apply to

other road sections of the Qiyi Road and the Changjiang Road, the Xiguan Avenue, the Delingha

Road and the Bayi Road within 35 m on either side of boundary lines; category 2 standards

contained in the Noise Environment Quality Criteria (GB 3096-2008) shall apply to out of 35

m of boundary lines.

When the street-side buildings are above the three-storey building (including the third floor),

the side street buildings facing the road side of the road from this project to the region of road

boundary line zone. shall have category 4a standards of Noise Environmental Quality Criteria

(GB3096-2008) while the back rows of buildings shall have category 1 or 2 standards of Noise

Environmental Quality Criteria (GB3096-2008). 60dB shall be apply to such sensitive points

16

as hospitals, schools outdoor in the daytime while 50dB shall apply at nights.

Table 1.4-3 Noise Environmental Quality Criteria (GB3096-2008)

Categories Daytime dB(A) At night dB(A)

1 55 45

2 60 50

4a 70 55

(2) Emission Criteria

Environmental Noise Emission Criteria for Constructional Sites of Building Industry

(GB12523-2011) shall apply to noises during the period of physical construction (Shown in

Table 1.4-4).

Table 1.4-4 Environmental Noise Emission Criteria for Constructional Sites of

Building Industry Unit: dB（A）

Daytime At Night

70 55

1.4.3 Water Environment

The main water body along the works is the Nanchuan River, which is one of main tributaries

of the Huangshui River. Its water body is mainly used for landscape sightseeing. Therefore,

Category IV standards in the Surface Water Environmental Quality Criteria (GB3838-2002)

shall apply to it.

No wastewater will be produced during the operation period of the works, but waste water

during the construction period is mainly based on that from production, which is used for water

spraying and dust reduction after oil separation and sedimentation.

(1) Environmental Quality Criteria

Corresponding environmental quality criteria applicable to water bodies involving the project

are shown in Table 1.4-5.

Table 1.4-5 Surface Water Environmental Quality Criteria（GB3838-2002）

Unit: mg/L

Water Bodies The Nanchuan River

Waterbody Function For Landscape sightseeing

Water Quality Criteria Applied Category IV

1 pH values（dimensionless） 6～9

2 CODcr ≤ 30

3 Ammonia nitrogen ≤ 1.5

4 Petroleum ≤ 0.5

5 BOD5≤ 6

17

6 CODMn≤ 10

1.5 Evaluation Grading and Scope

1.5.1 Evaluation Grading

According to Technical Guidelines for Environmental Impact Assessment (HJ2.1-2016,

HJ/T2.3-93; HJ2.4-2009, HJ19-2011, HJ 2.2-2008, HJ 610-2016 ) involving Environmental

Protection Industry Criteria of the People's Republic of China and based on nature of the

integrated works and environmental characteristics of project sites, the project shall adopt the

following evaluation grading in Table 1.5-1.

Table 1.5-1 Evaluation Grading

Evaluation

Aspects Evaluation Basis

Working

Ratings

Noise

Environment

According to HJ2.4-2009, the proposed project falls into the category of urban

transport improvement (expansion). After the completion of the project, the

increment of noise is more than 5dB (A). Following the grading guideline of noise

assessment, the acoustic environment evaluation for the project shall be identified as

Grade I.

Grade I

Ecological

Environment

The project is meant for an upgrade and improvement of existing urban roads, with

major reconstruction activities taking place within existing red lines. Located in the

urban built-up area, the project does not involve ecologically sensitive areas. Along

the project works is mainly urban greening vegetation. In a sense, the implementation

of greening measures under the project will make up for the vegetation loss resulting

from the construction of physical works, thus the project will basically not have any

impact over its ecological environment. Therefore, in terms of ecological

environment impacts, only a brief analysis is carried out for ecological impacts in the

project.

Brief

Analysis

Air Environment

The project involves the expansion (reconstruction) of the primary/secondary arterial

roads in the city, thus its air pollution mainly takes the form of TSP flying dust during

the construction period.

Grade II

Water

Environment

According to HJ / T2.3-93, the project will have small amount of pollutants emission

during the construction period, no sewage discharge during the operation period, with

simple chemical composition and low concentration of pollutants.

Grade III

1.5.2 Evaluation Scope

In accordance with the principles of identifying evaluation scope contained in the Norms for

Environmental Impact Assessment for Highway Construction Projects (JTG B03-2006) and the

actual situation of field investigations/surveys of the project sites, the evaluation scope for the

project is identified in Table 1.5-2.

Table 1.5-2 Evaluation Scope

Evaluation Aspects Evaluation Scope

Air Environment Proposed improvement (expansion) of physical works will be in the range of

200m on both sides of the center line;

Surface Water Environment Water bodies to be evaluated range from 100m upstream to 1000m downstream

of the Nanchuan River Bridge;

Noise Environment Proposed improvement (expansion) of physical works will be in the range of

200m on both sides of the center line;

Ecological Environment

Evaluation scope is concentrated in the range of 300m on both sides of the center

line of proposed improvement (expansion) of physical works; while waterborne

ecological evaluation scope is the same as that of surface water.

18

1.6 Evaluation Priorities and Factors

1.6.1 Evaluation Priorities

Based on field investigations/surveys of proposed urban roads for improvement (expansion),

along the physical works are urban built-up areas, thus existing urban roads – highways have

an environmental impact largely in the physical construction period. As for the project EIA,

priorities shall be placed upon atmospheric and surface water environmental impacts and their

corresponding prevention & control measures during the construction period, and upon

atmospheric and acoustic environment impacts and their corresponding prevention & control

measures during the operation period as well.

(1) Air Environment

The newly proposed physical works to be reconstructed (expanded) are urban arterial roads. In

the construction period, evaluation will mainly focus on adverse effects of physical construction

on the atmospheric environment getting closer to sensitive spots nearby. During the operation

period, focus will be on the assessment of the impact of exhaust gas generated from vehicles

on the sensitive points along the route, involving prediction of scope and extent of impacts and

suggestion of environmental protection safeguards to be adopted.

(2) Water Environment

Priority will be placed on evaluating the impact of road sections at the downstream of structures

across water body during the construction and operation periods, and the accident risks during

the operation period as well.

(3) Noise Environment

During the construction period, evaluation will mainly focus on adverse effects of physical

construction for improvement (expansion) on the atmospheric environment getting closer to

sensitive spots nearby. During the operation period, focus will be on the assessment of the

impact of exhaust gas generated from vehicles on the sensitive points along the route, involving

prediction of scope and extent of impacts and suggestion of environmental protection

safeguards to be adopted.

(4) Pollution Prevention & Control Measures during Construction Period

Depending on techniques and methods of physical construction of highways, pollution

prevention & control measures are proposed for air and water environments during the proposed

during the construction period.

1.6.2 Evaluation Factors

Based on environmental impact factors of the project, characteristics of each environmental

factor in the project area and existing environmental issues, the project evaluation factors are

identified in Table 1.6-1.

Table 1.6-1 EIA Aspects and Evaluation Factors for Newly Proposed Components

Category EIA Aspects Evaluation Factors

Evaluation of Quality Status of Air Environment CO、NO2、TSP、PM10

19

Environment Quality Status Quality Status of

Surface Water Environment

pH value, SS, BOD5, COD、Ammonia Nitrogen,

permanganate index, petroleum

Quality Status of

Regional Noise Environment

Equivalent continuous sound

level A

Forecasting & Evaluation of

Environment Impact

Construction

Period

Impact Analysis of

Air Environment Flying dust

Impact Analysis of

Surface Water Environment

COD, Ammonia Nitrogen, SS,

petroleum

Impact Analysis of

Noise Environment LAeq

Impact Analysis of

Solid Wastes Environment Building garbage, living garbage

Ecological Impact Analysis water and soil loss, landscape

Operation

Period

Impact Analysis of

Air Environment NO2、CO

Impact Analysis of

Surface Water Environment COD、NH3-N

Impact Analysis of

Noise Environment LAeq

1.7 Forecasting & Evaluation Periods

Based on the project construction duration and traffic volume forecasting, the project EIA will

have two primary periods as follows:

(1) Construction period: from January 2018 to June 2019, with a construction period of 17

months;

(2) Operation period: For noise and air environments, forecasting & evaluation shall be done

according to three characteristic years of initial operation (Year 1), mid-term operation (Year

7) and long-term operation (Year 15). For water environment, forecasting & evaluation

made based on directional changes of drainage.

1.8 Methodology of Evaluation Techniques

Following the principle of "Focus on points, point-line combination and adequate feedback",

various methods such as modeling computation, analogy and investigational analysis shall be

adopted for evaluation. The Project EIA shall take engineering design scheme as its forecasting

scenario.

20

1.9 Evaluation Process

Figure 1.9-1: Flowing Chart of Evaluation Techniques

1.10 Environment Protection Targets

1.10.1 Protection Targets of Air and Noise Environments

After site surveys or field investigations, the acoustic environment protection targets within

200m on both sides of urban roads proposed in the project mainly involve environmentally

sensitive points such as schools, hospitals, research and administrative offices and residential

compounds. The nature, orientation and impacts of atmospheric and acoustic environment

protection targets in the project are shown in Table 1.10-1 and Figure 3.

1.10.2 Protection Targets of Water Environment

The key protection target of surface water environment is the Nanchuan River. Its basic

information is indicated in Table 1.10-2.

Table 1.10-2 Protection Target of Water Environment

No. Waterbody Bridge Name Span Length

（m）

Quality

Criteria Bridge Piers

Water

Function

1 Nanchuan

River

Nanchuan River

Bridge 30

Category

IV No water piers

Landscape

Sightseeing

21

1.10.3 Protection Targets of Ecological Environment

The project involves the Xiguan Avenue across the Nanchuan River. The Nanchuan River has

continuous cascade rubber dams to maintain water level, with its water function of urban

landscape sightseeing. The water body does not have rare fishes for protection or important

natural aquatic spawning grounds or feeding grounds and migration routes.

1.10.4 Cultural Relics

According to the project survey, there are ancient buildings of the Xiangshuiyuan (Perfume)

Garden and the ancient city wall site of Xining City (Xiangshuiyuan Section) on the southern

side (K0 + 800) of the Qiyi Road Integrated Improvement Works under the project, which are

about 40m and 65m away from the red line of the road respectively.

The Xiangshuiyuan Garden, also known as Ma Gong Temple, is a municipal heritage

conservation unit, which was built in the Hongzhi years of the Ming Dynasty and destroyed in

the military burning at the end of the Ming Dynasty. During the years of Emperor Qianlong of

the Qinghai Dynasty, Xining City mayor Yang Yingju, county magistrates Chen Kuo and Chun

Chi rebuilt pavilions in it and named it the Xiangshuiyuan Garden. It has a land floor area of

about 3,000 square meters, becoming a rectangular garden site with east-west length and uneven

north-south width.

The ancient city wall site of Xining (Xiangshuiyuan Section) belongs to the Great Wall of Ming

Dynasty in the territory of Qinghai Province. Built in the middle of the Ming Dynasty, it is

classified as a national key cultural relics protection unit. For the ancient city wall ruins site, its

protection range shall be 10 m extension from the base line of the outer edge of base wall in

four directions of east, south, west and north, with 65m extension to both sides of lost sections.

Based on the field investigation, the restoration and reconstruction works of Xiangshuiquan

(Perfume Spring) site is currently being carried out. Its construction contents mainly include

restoration and reconstruction ancient buildings as well as “Brick City” renovation of the Ming

Dynasty ancient city wall sites to the south of the Gonggong Temple.

The Qiyi Road Integrated Improvement Project will be comprehensively implemented within

the existing red line of the road without additional newly acquired land. It will not occupy the

protection scope of the Xiangshuiyuan Garden and the cultural relics protection zone of the

ancient city wall ruins site of Xining Municipality (Xiangshuiyuan Section).

22

Protection Targets of Noise and Air Environments

on Both Sides of Urban Roads Newly Proposed

Table 1.10-1

No. Names Road Section Stake

No.

Description of Sensitive Points within

Evaluation Scope Position

Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads

Internal Models of Evaluation

Scope

Category

4a

Category

2

Category

1

The Qiyi Road Integrated Works – Qiyi Road (from the Changjiang Road to the Delingha Road)

1

Datong

Reprehensive

Office (RO) and

Wingman

Residential

Compound

(RC)

K0+150~K0+270

They are located right and back to Qiyi

Road. Datong Reprehensive Office is a 6-

storey building, with shops (ground floor)

and 24 residential households (floors 2-6).

Qinghaimain RC has 4 buildings, Its front

row has 2 near-road 7-story buildings with

shops (ground floor) ; its back row has 2

4-7-storey buildings with shops (ground

floor). The RC has a total of 86 residential

households (hhs). Its buildings are of

reinforced concrete structure.

Southern Side

of Qiyi Road 0 16/7/1 8 hhs 30 hhs

2

Beiyujing Alley

（No.10,12,

16,14）;

Beiyujing Alley

(No.2)

K0+460~K0+700

They are located skewed, right, back to

Qiyi Road. Beiyujing Alley (No.14) has

one near-road and back-to-Beida-Avenue

building, with shops (bottom two floors)

and residential households (floors 3-6) of

32 hhs. Beiyujing Alley (No. 10, 12,16)

has 6-storey buildings each of 60 hhs.

Beiyujing Alley (No.2) has 6 7-storey

buildings of 280 hhs. Their buildings are

of reinforced concrete structure.

Southern side

of Qiyi Road,

eastern side of

Beidajie

Avenue

8 37/28/22

37/26/19.5 away

from Beidajie

Avenue

32 hhs 340 hhs

3

Qinghai Public

Health

Vocational

K0+560~K0+760

It is located right to Qiyi Road. It has 8

buildings including 4 teaching buildings

and 4 household buildings of which 2 are

near the Qiyi Road. It has an enrollment

Northern side

of Qiyi Road -3 18/9/3

3082

teachers

and

students

23


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

Technology

College

of 2913 students and a staff of 169

teachers and other employees.

4

Qingfangting

RC, Wumao

zhongxing RC,

Xinhua shudian

RC, Wuzi

Gongxiao RC

K0+540~K0+800

They are located back to Qiyi Road.

Qingfangting RC has 2 buildings

including 1 near-road 5-storey building

and 1 back-row and 4-storey buildings,

with a total of 28 hhs. Wumao zhongxing

RC has 1 near-road 6-storey building of 40

hhs. Xinhua Shudian RC has 1near-road

7-storey building of 42 hhs. Wuzi

Gongxiao RC has 1 7-storey building of

84 hhs. All RCs have near-road shops

(ground floor). The buildings are of


Southern side


5 Zhenghe RC K0+700~K0+860

It is located right and skewed to Qiyi

Road. It has 7 7-storey buildings of 490

hhs. The buildings are of reinforced

concrete structure.

Southern side

of Qiyi Road 5 52/43/37 490 hhs

6

Qinghai

Provincial TCM

Hospital

K0+750~K0+860


buildings, including 4-storety outpatient

clinic building, 6-storey complex building

and 6-storey inpatient clinic building, with

a total of 400 ward beds and 612 hospital

employees. The buildings are of


Northern side


612

employees,

400 beds

7 Hengtong

Jiayuan RC K0+780~K0+840

It is located right to Qiyi Road. It has an

18-storey building, including shops and

offices (Floors 1-4) and households

(floors 5-18), with a total of 84 hhs. The

buildings are of reinforced concrete

structure.

Southern side


24


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

8 Zhongyiyuan

RC K0+870~K0+970

It is located right and skewed to Qiyi road.

It has 6 household buildings, including 1

near-road 6-storey building with shops

(ground floor), and 4 5-storey buildings

and 1 7-storey building at the back, with a

total of 246 hhs. The buildings are of


Northern side


174 hhs

9

Jinwei Building,

Jianhui

Building,

Jingdu Building

K0+870~K1+270

They are located back and near-road to

Qiyi Road. Jinwei Building has a 32-

storey building, including shops (floors 1-

2), offices of Xining Municipal

Economics & Information Commission

(floors 3-4) and households (floors 5-32),

with a total of 168 hhs. Jianhui Building

has a 29-storey building, including shops

(floors 1-4), households (floors 5-29),

with a total of 167 hhs. Jingdu Building

has 4 buildings, including No.1,2,3

buildings of 30 storeys and No.4 building

of 11 storeys. All buildings of Jingdu

Building have shops (floors 1-3), of which

No.1 building has Shangbin Helu

Community Service Station (Floor 4) and

households (the rest), with a total of over

2000 hhs. The buildings are of reinforced

concrete structure.

Southern side


10 Ruiheyuan RC K0+860~K1+010

It is located right to Qiyi Road. It has 6 7-

storey household buildings of 448 hhs.

The buildings are of reinforced concrete

structure.

Southern side


25


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

11 Qinghai Xining

Jingbeiqu Zone K1+020~K1+080


storey building. The buildings are of


Northern side


12 Xinmin Jiayuan

RC K1+050~K1+180

It is located skewed to Qiyi Road. It has 4

15-storey household buildings of 220 hhs.


structure.

Southern side


13

Teaching &

Household

Buildings of

Xining No. 1

Middle School

K1+220~K1+340


storey household buildings of 112 hhs and

3 teaching buildings of which there are 2

6-storey buildings and 1 5-storey building.

The school has 39 classes with 2600

students and 180 teachers. The buildings

are of reinforced concrete structure.

Southern side

of Qiyi Road 8 63/54/48

112 hhs,

2780

teachers/

students

14 Hengji Center K1+320~K1+390

It is located right or skewed to Qiyi Road

and Huayuanbei Street. It has 2 30-storey

household buildings including shops


with a total of 679 hhs. The buildings are


Southern side

of Qiyi Road,

Western side

of Huayuanbei

Street

0 19/9/3

68/60/53

away from

Huayuanbei Street

679 hhs

15

Qiyi Road

(No.369) and

Longhang RC,

Qiyi Road

(No.357)

K1+470~K1+660

It is located back to Qiyi road. Each of

Qiyi Road (No. 369, 357) has a 7-storey

building, including shops (floors 1-2) and

households (floors 3-7), with 20 hhs and

60 hhs respectively. Longhang RC has 2

7-storey buildings of 96 hhs. 1 near-road

building has offices (floors 1-3) and

households (floors 4-7); there is 1 back-

row 7-storey building. The buildings are


Southern side

of Qiyi Road,

Eastern side of

Huayuabei

Street

0 16/7/1

45/37/30

Away from

Huanyuanbei Street

120 hhs 56 hhs

26


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

16

Yushu Xining

Banshichu

Shuiwuju RC

K1+420~K1+530


storey building of 50 hhs. The buildings


Southern side

of Qiyi Road,

Eastern side of

Huayuabei

Street

4 52/43/37

2017/9/2

Away from

Huayuabei Street

50 hhs

17 Qinghai Junqu

Zhaodaisuo RC K1+580~K1+620

It is located back to Qiyi Road. It has 4 6-



Southern side


18 Qinghai Junqu

Caozi RC K1+620~K1+830

It is located skewed and back to Qiyi

Road. It has 6 5-7-storery buildings, of

which 3 near-road first-row buildings has

shops (floors 1-3) and 183 hhs. The


structure.

Southern side


19

Jingniu RC,

Wuxiandian

Yichang RC

K1+710~K1+830

They are located right or skewed to Qiyi

Road. Jingniu RC has 4 7-storery

buildings, of which 3 Lingbeiyuan

buildings has shops (floor 1) and 272 hhs.

Wuxiandian RC has 3 6-storey buildings

of 120 hhs. The buildings are of reinforced

concrete structure.

Southern side


20

Dongguan

Community

Service center

and Shuicheng

Huating RC

K1+820~K1+860

It is located right to Qiyi Road. It has an

18-storery building, including Dongguan

Community Service Center (floors 1-2,

interior decoration) and households

(floors 3-18).

Northern side

of Qiyi Road -1 16/7/1 96 hhs

21 Erjian RC K1+880~K2+000


buildings, including 1 7-storey building, 3

6-storey buildings and 1 3-storey building,

with a total of 224 hhs. The Buildings are


Northern side


224 hhs

27


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

22 Guangji RC K1+900~K2+020


7-storey household buildings, including 2

near-road building with shops (ground

floor) and 162 households (floors 2-7).

The Buildings are of reinforced concrete

structure.

Northern side


72 hhs

23

PBOC Bank

RC, Qiyi RC

(Qisehua

Kindergarten

and Meijia

Huanyuan RC)

K1+940~K2+260

It is located right, back or skewed to Qiyi

Road. PBOC Bank RC has 4 6-storey

buildings of 162 hhs. Qiyi RC has 6 7-

storey buildings, including 1 near-road

building with shops (floors 1-20) and 453

hhs. Meijia Huayuan RC has 7 buildings,

including 2 near-road 8-storey buildings

with shops (floors 1-2) and households

(floors 2-8), the 4 remaining back-row 7-

storey buildings of 236 hhs. The Buildings


Southern side


24

PAP Corps

Qinghai

Hospital

K2+020~K2+160


buildings, including outpatient clinic

building (near-road), 7-storey household

building, 6-storey Radiology building

(back-row building), 14-storey inpatient

clinic building, 3-storey E-N-T building,

4-storey ophthalmology building, 5-storey

administrative building. The hospital has a

total of 512 beds, 23 departments and 240

employees. The Buildings are of


Northern side


512 beds,

240

employees

25 Xining Qiyi

Middle School K2+160~K2+320

It is located right to Qiyi Road. It has a 5-

storey building with 28 teaching classes,

over 1500 students, 179 teachers and other

Northern side


2279

persons

28


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

employees. The buildings are of


26 Dongfang

Jianyuan RC K2+270~K2+380

It is located right or back to Qiyi Road. It

has 5 buildings of 476 hhs, including 2

near-road buildings with shops (floors 1-

5) and 3 6-18-storey buildings (back row).

The Buildings are of reinforced concrete

structure.

Southern side

of Qiyi Road,

western side

of Gonghe

Road

0 28/19/13

38/29/23

Away from

Gonghe Road

276 hhs 200 hhs

27

Xining

Electrical Power

RC

K2+280~K2+340


6-storey household buildings with shops

(ground floor) and 30 households (floors

2-6). The buildings are of reinforced

concrete structure.

Northern side

of Qiyi Road,

western side

of Gonghe

Road

-1 18/9/3

73/64/58

Away from

Gonghe Road and

opposite to Qinghai

EP Institute

30 hhs

28

Qinghai EP

Institute and its

RC

K2+360~K2+400

It is located right to Qiyi Road. It has a

near-road 5-storey office building. Its RC

is located opposite to Qinghai EP Institute,

right to Qiyi Road, which is a 5-storey

building of 30 households. The buildings


Northern side

of Qiyi Road,

western side

of Gonghe

Road

-1 19/10/4

2017/8/2

Away from

Gonghe Road

30 hh

29 Xuefeng

Building K2+410~K2+450


buildings, including 1 6-storey building

(right to Gonghe Road) of which floors 1-

3 are for commerce and floors 4-6 are for

households, and 1 16-storey building

(right to Qiyi Road) of which floors 1-2

are for shops and floors 3-16 for

households. The buildings are of


Northern side

of Qiyi Road,

eastern side of

Gonghe Road

0 16/7/1

42/33/27

Away from

Gonghe Road

130 hhs

30 Railway RC K2+410~K2+460

It is located skewed or back to Qiyi Road.

It has 3 7-storey buildings with shops

(ground floor) and 96 households. The

Northern side

of Qiyi Road, -3 79/70/64

2017/8/2

Away from

Gonghe Road

54 hhs

42 hhs

29


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1


structure.

eastern side of

Gonghe Road

31 Qinghai

Museum RC K2+450~K2+540

It is located back to Qiyi Road. It has 2 6-

storey buildings of 60 hhs. The buildings


Northern side


60 hhs

32 Shengyuan


It is located right to Qiyi Road and skewed

to Gonghe Road. It has 3 skyscraper

buildings, including 1 near-Qiyi-Road 25-

storey commercial building and 2 back

row 28-storey buildings with shops (floors

1-3) and 368 households (floors 4-28).

Southern side

of Qiyi Road,

eastern side of

Gonghe Road

0 35/26/20

38/29/23

Away from

Gonghe Road

368 hhs

33

Longhua

Yayuan RC,

Xiaoquan

Yating RC

K2+500~K2+760

They are located back or right to Qiyi

Road. Longhua Yayuan RC has 9

buildings of 1480 hhs, including 2 near-

road buildings of 30 storeys and 16 storeys

respectively with shops (floors 1-3) and

households (above), 3 back-row 15-storey

buildings and 4 back-row29-storey

buildings. Xiaoquan Yating RC is a near-

road 32-storey building of 224 hhs, with

commerce rooms (floors 1-4) and

households (floors 5-25). The buildings


Southern side


34

Railway Anye

RC, Dongyuan

RC

K2+650~K2+800

They are located back or skewed to Qiyi

Road. Dongyuan RC has 7 6-storey

household buildings of 276 households.

Railway Anye RC has 4 6-storey

household buildings of 228 hhs. The


structure.

Northern side

of Qiyi Road,

western side

of Jianguo

Avenue

-2 50/41/35

504 hhs

30


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

35 Xiaoquan

Primary School K2+720~K2+820


storey teaching buildings, with 36 classes,

2212 students and 105 teachers. The


structure.

Southern side

of Qiyi Road 4 138/127/123

2317

teachers /

students

36

Qingying

Lingxiucheng

RC

K3+000~K3+240

It is located right to Qiyidong Road. It has

4 buildings of 644 hhs, including 2 27-

storey buildings, 1 30-storey buildings and

1 33-storey buildings. The buildings are of


Northern side

of Qiyidong

Road

-1 75/66/60

69/51/46.5

Away from Jianguo

Avenue

644 hhs

37

Qinghai Gongyi

Meishuchang

RC,

Zhoujiaquan

Xiandaicheng

RC, Qinghai

Tuchan Gongsi

RC (Northern

Side)

K3+030~K3+260

They are located back, right and skewed to

Qiyidong Road. Qinghai Gongyi

Meishuchang Rc has a 6-storey building

of 30 hhs with shops (floor 1).

Zhoujiaquan Xiandaicheng RC has 18


road first-row 11-24-storey buildings with

shops (floors 1-2), 13 back-row 6-storey

household buildings. Qinghai Tuchan

Gongsi RC has a 6-storey buildings of 32

hhs with shops (floors 1-2). The buildings


Southern side

of Qiyidong

Road

0 25/16/10

47/29/24.5

Away from Jianguo

Avenue

372 hhs 414 hhs

38

Qinghai

Tuchang RC

(Southern Side),

Huade

Xingyuan RC

K3+110~

It is located right to Qiyidong Road.

Qinghai Tuchang Rc has 2 7-storey

buildings of 56 hhs, including 1 near-road

building with shops (ground floor). Huade

Xingyuan RC has 2 near-road buildings

with 100 hhs, including 1 7-storey

building with shops (floor 1) and 1 16-

storey building with shops (floor 1-2). The

Southern side

of Qiyidong

Road

0 24/15/9

76/58/53.5

Away from Jianguo

Avenue

128 hhs 28 hhs

31


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1


structure.

39 Baili RC K3+140~K3+400

It is located back to Qiyidong Road. It has

5 buildings of 427 hhs, including 2 20-

storey household buildings, 2 7-10-storey

household buildings and 2 19-25-storey

buildings. The buildings are of reinforced

concrete structure.

Southern side

of Qiyidong

Road

-3 137/128/122 427 hhs

40 Huaningyuan

RC K3+260~K3+400

It is located right to Qiyidong Road. It has

7 buildings of 354 hhs, including 2 near-

road 7-and-17-storey buildings with shops

( floors 1-3) and 5 back-row 7-storey


concrete structure.

Southern side

of Qiyidong

Road

-2 19/9/3 144 hhs 210 hhs

41 Baijia Alley

(being built) K3+660~K3+820

It is located right to Qiyidong Road and to

the west of Huzhu Alley. It has 3 28-storey

buildings being built of 896 hhs planned.


structure.

Northern side

of Qiyidong

Road,

southern side

of Binhenan

Road

0 70/61/55

41/31/23.5

Away from

Binghenan Road

896 hhs

42 Yichui Huayuan

RC K3+710~K3+800

It is located back or right to Qiyidong

Road and skewed to Delingha Road. It has

7 buildings of 463 hhs, including 2 near-

road 26-storey buildings with shops


and 5 remaining 7-storey households. The


structure.

Southern side

of Qiyidong

Road and

western side

of Delingha

Road

2 27/18/12 337 hhs 126 hhs

The Qiyi Road Integrated Improvement Works –The Delinghai Road (From the Qiyi Road to the Bayi Road)

32


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

43 Jinfeng

Binheyuan RC K0+050~K0+200

It is located skewed or right to Delingha

Road. Jingfeng Binheyuan Rc has 10

buildings with 1077 hhs with different

storeys of 17, 20, 27, 29, 32 floors. There

are 2 32-and-29-storey buildings with

hotel rooms (floors 1-5) from north to

south along the Delingha Road. The


structure.

Eastern side of

Delingha

Road

0 20/11/5 244 hhs 833 hhs

44

Dazhong Street

(No.4),HenanR

O RC, Bayi

Road (No.92)

K0+180~K0+310

They are located back to Delingha Road.

All sensitive points are near-road, with

shops (ground floor). Dazhong Street

(No.4) has 2 6-storey buildings of 84 hhs.

Henan RO RC has 1 6-storey building of

84 hhs. Bayi Road (No.92) has 2 6-storey

buildings of 96 hhs. The buildings are of


Eastern and

western sides

of Delingha

Road

0 21/12/6 210 hhs

45

Jingsong

Shengshi

Tiancheng RC

K0+170~K0+300

It is located skewed to Delingha Road and

back to Bayi Road. It has 3 buildings of

524 hhs, with 32, 26 and 18 storeys from

south to north, of which 2 buildings on the

southern side have shops (floors 1-3) and

households. The buildings are of


Western side

of Delingha

Road, northern

side of Bayi

Road

-1 59/50/44 232 hhs 292 hhs

The Qiyi Road Integrated Improvement Works –The Bayi Road (From the Delingha Road to the Huangzhong Road)

46 Gongshangju

RC K0+220~K0+290

It is located right to Bayi Road and skewed

to Delingha Road. It has 3 6-storey

buildings of 36 households. The buildings


Northern side

of Bayi Road,

Eastern side of

Delingha

Road

-1 46/37/31 36 hhs

33


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

47

Food&Drugs

Supervision

Administration

K0+030~K0+070

It is located right to Bayi Road and skewed

to Delingha Road. It has 1 6-storey

buildings of 36 office rooms. The


structure.

Northern side

of Bayi Road,

Eastern side of

Delingha

Road

0 22/8/2 48 rooms

48

Wentai RC

(including Boli

Kindergarten)

Bayizhong

Road (No.63)

K0+060~K0+270

It is located back or skewed to Bayi Road .

It has 9 buildings of 323 hhs, including 1


(ground floor) and households (floors 2-

7), 2 back-row villas and 6 6-storey

household buildings. Boli Kindergarten in

the RC has 1 3-storey building with 210

students and 16 teachers. Bayizhong Road

(No. 63) has 1 6-storey building of 30 hhs,

with shops (ground floor). The buildings


Southern side

of Bayi Road 0 29/15/9 66 hhs 287 hhs

49 Chengshanyuan

RC K0+070~K0+120

It is located back to Bayi Road . It has 3


road 5-storey building with shops (ground

floor) and households (floors 2-5), 2

remaining 7-storey household buildings.


structure.

Northern side

of Bayi Road -1 22/8/2 24 hhs 84 hhs

50 Kangyuan RC K0+190~K0+280

It is located right to Bayi Road with hotel

rooms in the middle. It has 7 7-storey



Northern side

of Bayi Road -3 60/46/40 378 hhs

51 Bayi Road

Minghang RC K0+380~K0+430

It is located back to Bayi Road, with

Minghang Building in the middle. It has 1

28-storey building of 112 hhs. The

Northern side

of Bayi Road -3 81/57/51 112 hhs

34


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1


structure.

52

Youju RC,

Jiedusuo Rc,

Xinhua

Xiechang RC,

Xining Dier

Fuzhangchang

RC

K0+280~K0+335

They are located back or right to Bayi

Road and skewed to Kangxiyi Road.

Youju RC has a near-Bayi-Road 6-storey

building of 13 hhs, with shops (floors 1-2)

and households (floors 3-6). Other 3 RCs

have 1 6-storey building of 40 hhs each,

with a total of 120 hhs. The buildings are


Southern side


53 Longfu RC K0+300~K0+390

It is located right to Bayi Road. It has 6 6-

storey buildings of 216 hhs, including 1




Northern side

of Bayi Road -1 30/16/10 54 hhs 162 hhs

54

Qinghai

Provincial

Forestry Bureau

and its Bayi

Road RC

K0+360~K0+450


storey building. Its Bayi Road RC is

located back or skewed to Bayi Road. It

has 3 6-storey buildings of 60 hhs. The


structure.

Southern side

of Bayi Road 3 79/65/59 60 hhs

55 Baiyuan Yishe

RC (being built) K0+510~K0+550

It is located back to Bayi Road. It has 1 33-

storey building of 132 hhs planned. The


structure.

Southern side


56 Dongrong


It is located back to Bayi Road and skewed

to Kangxiyi Road. It has 1 18-storey

building with commercial rooms (floors 1-

6) and 72 hhs (floors 7-18). The buildings


Southern side

of Bayi Road,

Western side

of Kangxiyi

Road

0 32/18/12 72 hhs

35


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

57 Bayixi Road

(No.43) RC K0+550~K0+600


storey buildings of 72 hhs. The buildings


Southern side


58 Liangyong RC K0+580~K0+730


storey buildings with shops (ground floor)

and 160 hhs (floors 2-6). The buildings are


Northern side

of Bayi Road,

Southern side

of Binhenan

Road

-2 44/30/24

41/31/23.5

Away from

Binhenan Road

160 hhs

59

Qinghai Women

& Children

Hospital

K0+640~K0+680

It is located at the intersection of Bayi

Road and Kangxiyi Road and back to Bayi

Road. It has 1 11-storey building with 550

employees and 390 ward beds. The


structure.

Southern side

of Bayi Road

eastern side of

Kangxiyi

Road

3 35/21/15

550

employees,

390 beds

60 Ganxiusuo RC K0+680~K0+740

It is located right and back to Bayi Road.

It has 2 7-storey buildings of 104 hhs,

including 1 near-Bayi-Road building with

shops (ground floor) and households

(floors 2-7). The buildings are of


Southern side


61

Qinghai Coal

Geologic

Survey Station

(NO.105) and

its RC

K0+750~K0+840

It is located back or right to Bayi Road. It

has a near-road 7-storey office building,

with shops (ground floor). Its RC has 9


road 6-storey building of 24 hhs with

shops (floors 1-2), 7 back-row 6-storey

buildings, 1 3-storey building and 1 18-

storey building. The buildings are of


Southern side


62 Qinghai Meitan

Wuche RC K0+850~K0+940

It is located back or right to Bayi Road and

skewed to Huangzhong Road. It has 7

Southern side

of Bayi Road, 2 23/9/3 18 hhs 210 hhs

36


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

buildings of 228 hhs, iincluding 1 near-

Bayi Road 6-storey building with shops

(floors 1-2), 2 near-Huangzhong Road 6-

storey buildings, 3 back-row 6-storey

buildings and 1 5-storey building. The


structure.

western side

of

Huangzhong

Road

The Wuyi Road Slow-Moving Improvement Project – (from the Qiyi Road to Binhenan Road)

63

Qinghai

Provincial

People’s

Congress (PPC)

K0+090~K0+190

It is located right to Wuyi Road and

skewed to Qiyi Road. It has a 6-storey

building. The buildings are of reinforced

concrete structure.

Western side

of Wuyi Road,

northern side

of Qiyi Road

-1 66/56/48.5

71/62/56

Away from Qiyi

Road

64 Qinghai PPC

RC K0+170~K0+260

It is located skewed to Wuyi Road. It has

8 6-storey buildings of 224 hhs. The


structure.

Western side

of Wuyi Road, 0 59/49/41.5 224 hhs

65 Jingji Huating

RC K0+330~K0+420

It is located right and skewed to Wuyi

Road. It has 4 buildings, including 1 near-

Wuyi-Road 32-storey building of 384 hhs

and 3 back-row buildings of different

storeys of 32, 31 and 23, with a total of

516 hhs. The buildings are of reinforced

concrete structure.

Eastern side of

Wuyi Road 0 38/28/20.5 384 hhs 516 hhs

66

Taiheyuan RC,

Qinghai Radio

Administration

Commission,

Qinghai Radio

Monitoring

Station

K0+380~K0+600

They are located right, skewed and back to

Wuyi Road. Taiheyuan RC has 22


Wuyi-Road 13-storey buildings with

shops (floors 1-2), and 2 back-row 6-

storey household buildings. Qinghai

Radio Administration Commission and its

Western side

of Wuyi Road,

southern side

of Binhenan

Road

9 34/24/16.5

19/9/1.5

Away from

Binhenan Road

104 hhs 710 hhs

37


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

radio monitoring station have a 11-storey

building. The buildings are of reinforced

concrete structure.

67

Xining Wuyi

Cultural Palace,

Mingcuiliu RC

K0+420~K0+480

They are located skewed to Wuyi Road.

Xining Wuyi Cultural Palace has a 3-

storey building. Mingcuiliu RC has a 25-



Eastern side of

Wuyi Road -5 112/102/94.5 250 hhs

68 Wuyi Jiayuan

RC K0+570~K0+630

It is located skewed to Wuyi Road. It has

a 22-storey building with shops (floors 1-

2), with a total of 80 hhs. The buildings are


Western side

of Wuyi Road 0 22.5/12.5/5 80 hhs

The Changjiang Road Improvement Works

69 Jianhang RC K0+160~K0+360

It is located back or skewed to Changjiang

Road, with front-row buildings in the

middle. It has 8 7-storey buildings of 290

hhs. The buildings are of reinforced

concrete structure.

Eastern side of

Changjiang

Road

54/40.5/32 290 hhs

70 Traffic Police

RC K0+350~K0+400

It is located right or skewed to Changjiang

Road. It has a 7-storey building of 76 hhs

with shops (ground floor). The buildings


Eastern side of

Changjiang

Road

18.5/9.5/1 76 hhs

71

Provincial

Prosecution

Agency RC and

Lirangjie RC

K0+490~K0+580

It is located skewed to Changjiang Road

with high-rise building in the middle.

Provincial Prosecution Agency has 2 7-

storey buildings of 72 hhs. Lirangjie RC

has 4 7-storey buildings of 112 hhs. The


structure.

Eastern side of

Changjiang

Road, western

side of Lirang

Street

3 43/34/30 184 hhs

38


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

72 Ruihuayuan RC K0+620~K0+780

It is located skewed to Changjiang Road.

The office building on its western side is

being constructed. It has 8 7-storey



Eastern side of

Changjiang

Road

7 74/65/61 226 hhs

73 Jingfengyuan

RC K0+780~K0+880


and back to Qiyi Road. It has 3 buildings

of 252 hhs, including 2 6-storey buildings

and 1 7-storey building with shops



Western side

of Changjiang

Road,

southern side

of Qiyi Road

6 61/52/48 252 hhs

74

Chengzhong

District Local

Taxation

Bureau and its

RC, Changjiang

Road (No. 27)

K0+100~K0+220

They are located right and back to

Changjiang Road. Chengzhong District

Local Taxation Bureau has a 9-storey

office building; its RC has a 7-storey

building of 40 hhs. Changjiang Road

(No.27) has a 7-storey building of 36 hhs

with shops (floors 1-2). The buildings are


Western side

of Changjiang

Road (branch)

0 18.5/9.5/1 76 hhs

75 Qinghai Daily

RC K1+140~K1+280


and to the north of Qiyi Road. It has 9


Changjiang Road 7-storey building with

shops (ground floor) and 8 back-row 6-

storey household buildings. The buildings


Eastern side of

Changjiang

Road, northern

side of Qiyi

Road

0 18.5/9.5/1

77/68/62

Away from

Qiyi Road

48 hhs 240 hhs

76

Hydrology

Station and its

RC

K1+320~K1+390

It is located skewed to Changjiang Road.

It has 7 buildings of 160 hhs, including 2

5-storey buildings and 5 6-storey


concrete structure.

Eastern side of

Changjiang

Road,

southern side

-1 19.5/10.5/2

31/21/13.5

Away from

Binhenan Road

78 hhs 82 hhs

39


No.



Height

Difference

Nearest Distance

from Roadway

Centerline,

Borderline and

Redline (m) of

Proposed Roads

Nearest Distance

from Roadway

Centre line,

Borderline and

Redline (m) of

Related Roads


Scope

Category

4a

Category

2

Category

1

of Binhenan

Road

40

2 Midterm Restructuring Project Overview

2.1 Newly Proposed Components

Newly proposed components of the Project are detailed in Table 2.1-1.

Table 2.1-1 Newly Proposed Components

Project Name The Midterm Restructuring Project (MRP) under the Qinghai Xining Urban Transport Project via WB Loan

Construction

Entity PMO of the Qinghai Xining Urban Transport Project via WB Loan

Construction

Scale

The Midterm Restructuring Project (MRP) consists of 3 primary components such as Urban Roads, TP and ITS.

Urban

Roads

Qiyi Road Integrated

Improvement Works

For the Qiyi Road Integrated Improvement Works with a total length of

5.13 km, its road sections to be improved are the Qiyi Road (from the

Changjiang Road to the Delingha Road), the Delingha Road (from the

Qiyi Road to the Bayi Road) and the Bayi Road (from the Delingha Road

to the Huangzhong Road). The Qiyi Road and the Delingha Road are

secondary trunk urban roads, both of which have 6 bi-directional lanes,

with a red line width of 30 m and a designed speed of 40 km/h. The Bayi

Road is a primary trunk urban road, which has 8 bidirectional lanes, with

a red line width of 40 m and a designed speed of 60 km/h.

Wuyi Road Slow-Moving

Improvement Works

For the Wuyi Road Slow-moving Improvement Works with a total length

of 0.64 km, it starts from the Qiyi Road in the south to the Binhenan

Road in the north. It is a primary trunk urban road, which has 6

bidirectional lanes, with a red line width of 35 and a designed speed of

40 km/h.

Changjiang Road

Improvement Works

For the Changjiang Road Improvement Works with a total length of 1.41

km, it starts from Xiguan Avenue to Binhenan Road. It is a primary trunk

urban road, which has 8 bidirectional lanes, with a planned red line width

of 35-55m and a designed speed of 50km/h.

Xiguan Avenue Improvement

(Expansion) Works

For the Xiguan Avenue Improvement and Expansion Works with a total

length of 0.42k, it starts from the Huanghe Road to the Changjiang Road.

It is a primary trunk urban road, which has 8 bidirectional lanes, with a

planned red line width of 46 m and a designed speed of 50km/h.

PT

Procurement of

New Pure Electric Buses It is proposed to procure 145 new pure electric buses.

Bus OBU Passenger

Flow Analysis System

Xining Municipality has 1648 buses or so, which shall be equipped with

their OBU passenger flow analysis systems to accurately collect real-

time passenger information of buses and passenger flow information at

bus stops, thus achieving intelligent dispatching of vehicles and bus

priority.

ITS

Video Forensic System for

Off-site Traffic Violations

In addition to installed point positions at bus stops and PT corridors, the

construction of PT corridors involves setup of point positions for

capturing illegal parking every other 500 meters along the corridor, with

a total of 55 point positions.

Imaging Forensic System for

Off-site Traffic Violations

Within 40 m of crossing intersection of PT corridor, electronic

enforcement devices of E-policing shall be installed for line-touching,

illegal route change and line-striding, with a total of 29 point positions.

Road Vehicles Intelligent

Monitoring System

For sections of dedicated bus lanes, speed-measuring points in name of

road section will be installed in the right and opposite directions,

seamlessly connecting with “Combining-6-into-1” platform of the public

41

security management. There will be 10 sets of speed-measuring devices.

High-point Watching System It is proposed to construct 5 point positions to carry out all-course real-

time CCTV and visual macro-monitoring along PT corridors.

Hawk’s Eye System They shall be installed along the PT corridors to achieve a 180-degreeand

blindness monitoring of traffic flow at the crossing intersections.

Consultancy & Construction of

Connection of ITS Monitoring

Platforms

Presided by the WB Mission, the third party shall carry out connection

between the Haihu Platform and the Old City Platform.

Total

Investment RMB 687.7761 million Yuan

EP

Investment

RMB 13.42.38

million Yuan

Construction

Nature

Improvement

(Expansion)

Construction

Sites

The Qiyi Road, the Wuyi Road, the Xiguan Avenue and the Changjiang Road in Xining Municipality, Qinghai

Province.

42

2.2 Present Status of Urban Roads

2.2.1 Existing Urban Roads

The Midterm Restructuring (MR) Project involves 4 important urban roads such as the Qiyi

Road, the Wuyi Road, the Changjiang Road and the Xiguan Avenue. Based on site surveys or

field investigation, the present situations of the MRP are shown in Table 2.2-1.

2.2.2 Existing Road Issues

(1) The existing roadbeds of the Qiyi Road has been approaching its expiration date, with

serious disease conditions. In addition, there have been issues affecting road traffic, such as

frequently running over marked lines or crossing lanes of vehicles because of narrow lanes,

insufficient street-crossing facilities, low availability of footbridges and underground passages,

many entrances and exits of buildings along the corridor and lack of rational transport

(2) The Wuyi Road: The road surfaces of existing pedestrian sidewalks and vehicle lanes are

seriously damaged. In the course of driving process, vehicles make relatively big noise and

easily generate flying dust.

(3) For the Xiguan Avenue, its overall road facilities are in good condition. However, the Xiguan

Bridge has a long history of construction, but with serious diseases. Its original design load can

no longer meet the current traffic demand.

(4) Part of pavements of the Changjiang Road suffers from occurrences of fracture and damage.

Vehicles are relatively noisy during the driving process, with easily generated flying dust.

Furthermore, there has been the issue of traffic transfer between the Changjiang Road and a

number of eastward and westward important roads such as the Xiguan Avenue, the Wusi Avenue

and the Huanghe Road, thus resulting in heavy traffic congestion. Additionally, after completion

of the Central Square Northward Extension Project, high traffic volume will be attracted, thus

placing great demands of traffic carrying capacity on its surrounding roads, including the

Changjiang Road.

2.2.3 Improvement (Expansion) Measures

(1) Under the MR project, all urban roads shall be constructed and renovated into asphalt

pavements, which can effectively reduce the impacts of flying dust and traffic noise during the

operation period.

(2) The Xiguan Bridge on the Xiguan Avenue shall be demolished and reconstructed, and its

bridge as well as the size of vehicle lanes connected at both ends will be extended and

supplemented, so as to enhance the traffic capacity of the entire road and avoid traffic

congestion during rush hour.

(3) Apart from improving road facilities, the Qiyi Road Improvement Works will continue to

extend dedicated bus lanes eastward, running through the Delingha Road and the Bayi Road,

reaching the Bayi Road Bus Terminal, thus forming a fast passage leading to the bus terminal

to the Bayi Road.

(4) The construction of ITS systems can realize orderly and scientific road transport and

coordinated handling of traffic conditions, thus creating a sound situation of road operation.

43

Table 2.2-1 Present Status of Newly Proposed Urban Roads

No. Road

Sections

Location Starting/

Ending Points Existing Sizes Operational Status Surroundings Photos of Present Status

1

Qiy

i R

d –

Del

ingh

a R

d -

Bayi

Rd

Qiy

i R

d

Located in the northern

part of the Xining

Chengzhong District, it

starts from Tongren

Road, from west to

east, through Huanghe

Rd, Changjiang Rd,

Beidajie Avenue, Wuyi

Rd, Huayuanbei Street,

Baiyuan Alley,

Gonghe Rd, Jianguo

Avenue and Delingha

Rd , meeting Binhenan

Rd and continuing

eastward extension, and

ends with intersecting

with Huangzhong Rd at

the terminal.

It has a total length of

4.2km, with a vehicle

road width of 18m

and 6 bidirectional

lanes. Some road

section (from

Changjiang Rd to

Wuyi Rd) has a

central fence divider,

with a pedestrian

sidewalk width of 6m

on either side of

standard road section.

Considering 15m

wide space in front of

building, greening

belts and pedestrian

sidewalk railings will

be set up near vehicle

lanes.

Along the Qiyi Road are 15 bus

routes in operation, with 9 curved-

line and straight-line bus stops.

Street-crossing facilities are

generally built at the intersections.

They are mostly pedestrian

crossings, with 1 underground

passage (at the intersection of Qiyi

Road and Jianguonan Road) and 4

pedestrian foot-bridges (the one on

the northern side of Yangjia Alley

is for internal use). 3 pedestrian

crossings at 3 road sections are

built in combination with entrances

and exits of units (Provincial TCM

Hospital and Provincial Military

District), without traffic signals

control.

Along the road are mostly

commercial / household

buildings. It is a belt

where hospitals and

schools are concentrated,

having historic buildings

and cultural heritage

units.

Del

ingh

a R

d


313m, with a vehicle

road width of 18m, 6

bidirectional lanes, a

pedestrian sidewalk

width of 6m. It is

noted that railings will

be set up on one side

of pedestrian

sidewalk.

RCs on both sides of the

Road are continuously

distributed, with shops of

near-road buildings

(ground floor).

44

No. Road

Sections

Location Starting/


Bayi

Rd

It has a length of

968m and a road

width of 40m. It takes

the form of double

cross section. It has a

total width of 6m

(sidewalk+greenbelt),

a vehicle road width

of 28m, 8 two-way

lanes, with a central

divider. It is of asphalt

pavement structure..

Along the road are 10 bus routes,

with 4 bus stops. Some road

sections suffer from transverse

seams and cracks, but generally in

good condition.

Lands on both sides of the

road are mostly residential

compounds, guesthouses

and hotels by developers.

The Bayi Road Bus

Terminal is located at the

end of the design road

section – at the

intersection of the

Huangzhong Road.

2

Wu

yi

Rd

It starts from Qiyi Rd in

the south and ends at

Qilian Rd.

It has a length of 648

m. It takes the form of

double cross section.

It has a vehicle road

width of 18m, with a

central divider of

1.5m.

Current pedestrian sidewalks and

vehicle lanes are seriously

damaged, with unsound drainage

and occasional water ponding on

the pavement.

On both sides of the road

are residential quarters

and governmental units.

Most buildings along the

road have street

restaurants (ground floor),

with parking occupying

sidewalks (ground floors).

At the intersection of

Wuyi Road /Qiyi Road,

landscape improvement is

being done, with the

Garden Square under

construction.

45

No. Road

Sections

Location Starting/


3

Xig

uan

Aven

ue

Str

eets

It connects with Xidajie

Avenue, Dongdajie

Avenue and Dongguan

Avenue.

It has a line length of

419m and a standard

road width of 46m,

including road width

of 14m and 5

bidirectional lanes (3

lanes eastward on the

south side and 2 lanes

westward on the north

side). Safety fences

on near-vehicle-lane

side are set up.

The whole section has complete

markings and signage, with good

lighting facilities, rich green

vegetation, and well-kept road

surface conditions of driveways

and pedestrian sidewalks.

It is adjacent to the

Central Square, with the

Children's Park, the

Xining Stadium, the

Ximen Underground Mall

and the Cultural Square on

its southern side. They are

public places for leisure,

recreation and shopping.

Xig

uan

Bri

dge

The bridge has a total

length of 43.2m, a

span combination of

6m + 24m + 9.6m

and a total bridge

width of 19.74m. It

consists of 3.25m

sidewalk + 13.2m

driveway + 3.25m

sidewalk. The upper

and lower parts of the

bridge are single-hole

and double-cantilever

reinforced concrete

composite beams and

gravity piers,

respectively, and the

bridge deck is paved

with asphalt concrete.

It has problems like bridge

decking wear, exposed aggregate,

horizontal cracking, pit, vehicle

bumping at the extension joints

of bridge, loosen railings, water

seepage of bridge abutment caps,

vertical cracks, vertical cracking of

abutment body, pier net-like crack,

bent cap vertical cracks, U-

shaped cracks of vertical walls, etc.

46

No. Road

Sections

Location Starting/


4

Ch

an

gji

an

g R

d

Xig

uan

Aven

ue

- B

ingh

enan

Rd

Located in the western

part of Xining Old City,

it connects with

Nanchuandong Rd in

the south and Qilian Rd

in the north.


1405m. It starts from

south to north,

intersecting with

Xiguan Avenue, Wusi

Corridor, Qiyi Road

and Binhenan Road.

The whole section

takes the form of

singular cross-

section. The road

section from Xiguan

Avenue to the Wusi

Corridor has a length

of 297m, with a

driveway width of

27m. The central

divider bar is located

along the road. There

are 3 one-way lanes +

non-motorized lanes

on the eastern half and

3 one-way lanes +

dedicated bus lanes on

the western half.

Along the road is the

Central Square on its

western side and

commercial developments

on its eastern side.

47

No. Road

Sections

Location Starting/


Wu

si A

ven

ue

– Q

iyi

Rd

It has a length of 772

m, with a driveway

width of 18m and 6

two-way lanes.

There have been diseases like

extensive areas of tracks, cracks

and pits on the surface of roads.

Resettlement housing

construction and the

Central Square Northward

Extension Works are

being carried out on

eastern and western sides

of the road. Affected by

those constructional

activities, the space for

pedestrians is compressed

and pedestrian pavement

severely damaged.

Qiy

i R

d –

Bin

hen

an

Rd

The road section has

a length of 337m and

a driveway width of

18m. It is divided

into 6 two-way lanes,

with a central divider.

Given space in front

of buildings, its

sidewalks have a

width of less than

2m.

On both sides of the road

are mostly household

buildings with near-road

shops (ground floor).Over

the road are electrical

wires that are not in use.

48

2.3 Urban Roads Component

The project involves such urban areas as the Chengzhong District, the Chengdong District and

the Chengxi District in Xining City. The project includes three important components, namely,

urban roads, PT and ITS. As the components such PT and ITS are mainly non-civil -engineering

works, thus the EIA for the MRP is a brief description and analysis of PT and ITS, but a detailed

introduction of urban roads (civil engineering works).

2.3.1 Urban Roads

（1）Plane Design

The Qiyi Road (Changjiang Road ~ Delingha Road) has a total length of 3838.535m. There are

6 flat curves, with a minimum circular curve radius of 300m along the road. The Delingha Road

(Qiyi Road ~ Bayi Road) and Bayi Road (Delingha Road ~ Huangzhong Road) have their

designed lengths of 323.855m and 966.551m respectively, with no curve unit.

May 1 South Qianyi Road, north Binhe Road, long 640.675m. All straight lines, no curve unit.

The Xiguan Avenue (Huanghe Road ~ Changjiang Road) starts from the Qiyi Road in the south

and ends at the Binhenan Road, with a route length 424.105m, including a flat curve with a

radius of 900m.

The Changjiang Road (Xiguan Avenue ~ Binhenan Road) has a total length of 1409.87m,

having branches at the Sanjiao Huanyuan (meaning Triangle Garden) and staggering at the

intersection of the Qiyi Road. The whole line contains 3 flat curves with a minimum radius of

500m.

（2）Sectional Design

① Road Sectional Design

Qiyi Road

The Qiyi Road Integrated Improvement (Qiyi Road – Delingha Road – Bayi Road)

The Qiyi Road (Changjiang Road - Delingha Road): As a secondary trunk road in the city, It

has a planned road red line width of 30m, a driveway width of 18m, a pedestrian sidewalk width

of 6m on either side, with 1.5m-wide greenbelt on the sidewalk. The Qiyi Road will, in

combination with the construction of dedicated bus lanes of No.9 Route, continue eastward

extension, via the Delhi Road and the Bayi Road, to Bayi Bus Terminal Station.

Following the design scenario (drawings) for dedicated bus lanes of No. 9 Route, the Qiyi Road

has the same road width and driveway lane size as the current one, with the outermost lane

designed for dedicated bus lane. Part of the green belt will be broadened to 3m, in line with the

sponge city design.

The current road section and its sectional design scenario for the Qiyi Road are shown in Figure

2.3-1~2.

49

Figure 2.3-1 Current Road Section of Qiyi Road

Figure 2.3-2 Sectional Design Drawing of Qiyi Road

Delingha Road and Bayi Road: the Qiyi Road has the same road width and driveway lane size

as the current one, with the outermost lane designed for dedicated bus lane.

Figure 2.3-3 Sectional Design Drawing of Delingha Road

50

Figure 2.3-4 Sectional Design Drawing of Bayi Road

Wuyi Road

The Wuyi Road is a primary trunk road, with a planned road red line width of 35m. The current

road is in the form of two road sections with a driveway width of 18m and a 1.5m-wide central

divider. Its pedestrian sidewalks are combined with spaces in front of buildings, with different

widths, and some road sections have not reached the width of red line.

The cross-sectional form and driveway lane size are unchanged. By using spaces in front of

building, non-motorized lanes will be set in the same pattern as pedestrian sidewalks, with an

overall net width of over 1.5m. The current road section and its sectional design scenario are

seen in Figure 2.3-5 ~ 6.

Figure 2.3-5 Current Road Section of Wuyi Road

Figure 2.3-6 Sectional Design Drawing of Wuyi Road

51

Xiguan Avenue

The Xiguan Avenue has a current standard road width of 46m, consistent with the planned width

of red line, including a driveway width of 14m and a pedestrian sidewalk width of 16m on both

sides.

It is proposed to take the form of single road cross-section in the design scenario. The driveway

road shall be broadened to have 8 two-way lanes, with a central divider. Greenbelts near

sidewalks are designed to have a width of 3.5m on either side of the road to collect rainwater

on sidewalks and roadways, thus being consistent with the sponge city design in combination

with road landscape.

The current road section and its sectional design scenario of the Xiguan Avenue are shown in

Figure 2.3-7- ~ 8.

Figure 2.3-7 Current Road Section of Xiguan Avenue

Figure 2.3-8 Sectional Design Drawing of Xiguan Avenue

Changjiang Road

① Xiguan Avenue ~ Wusi Avenue (Corridor)

The land on both sides of current urban roads has taken its shape or scale, with mature

developments. The road (Xiguan Avenue to Wusi Avenue) has a driveway width of 27m, which

allows for division into 8 two-way lanes. Therefore, its cross-section design shall keep its status

quo.

The sectional design scenario for the road (Xiguan Avenue to Wusi Avenue) is shown in Figure

2.3-9.

52

Figure 2.3-9 Sectional Design Drawing of Xiguan Avenue~Wusi Avenue)

② Wusi Avenue~Qiyi Road~Binhenan Road

For the Wusi Avenue~Qiyi Road, its improvement and expansion construction will be carried

out in combination with metro construction. The road cross-section in the design will maintain

the status quo. For the Qianyi Road~Binhe Road, it has a driveway width of 18m, 6 two-way

lanes. The buildings on both sides of the current road are in shape, thus the design of road cross-

section will keep the status quo.

The sectional design scenario of Wusi Avenue ~ Qiyi Road ~ Binhenan Road is shown in Figure

2.3-10.

Figure 2.3-10 Sectional Design Drawing of Wusi Avenue ~ Qiyi Road ~ Binhenan Road

③ Road Sectional Changes before and After Construction

Contrasts of Road Sections before and after Construction of Newly Proposed Urban Roads are

detailed in Figure 2.3-1.

Table 2.3-1 Changes in Road Sections

Road Sections

Road Sectional Specifications Changes

in Redline

Width Original Roads Improved Roads

Qiyi Road Integrated

Improvement Works

Qiyi Rd

(Changjiang Rd –

Delingha Rd)

30m=4m sidewalk+2m

greenbelt+18m driveway+2 m

greenbelt+4 m driveway

30m=3m sidewalk+3m

greenbelt+18m driveway+3m

greenbelt+3 m sidewalk

0

Delingha Rd

(Qiyi Rd – Bayi

Rd)

30m=6m sidewalk +18m driveway

+6 m sidewalk

30m=6m sidewalk+18m driveway+6

m sidewalk 0

Bayi Rd

(Delingha Rd –

Huangzhong Rd

40m=6m sidewalk+28m driveway

+6 m sidewalk

40m=6m sidewalk +28m driveway

+6 m sidewalk 0

Wuyi Road Slow-moving

Improvement Works

Qiyi Rd –

Binhenan Rd

2.6~17.5m sidewalk +9m driveway

+1.5m green central divider +9m

driveway +4~14.6 m sidewalk

2.6~17.5m sidewalk/non-driveway

lane shared+9m driveway+1.5m

green central divider +9m driveway

+4~14.6 m sidewalk/non-driveway

lane shared

0

53

Xiguan Avenue

Improvement / Expansion

Works

Huanghe Rd –

Changjiang Rd

46=16m sidewalk+14m driveway

+16 m sidewalk

46=2m sidewalk+2.5m non-driveway

lane +3.5m greenbelt +30m driveway

+3.5m greenbelt +2.5m non-driveway

lane +2m sidewalk

0

Changjiang Road

Improvement Works

Xiguan Avenue –

Wusi Avenue

45m=9.5m sidewalk+27.0

driveway+8.5 sidewalk

45m=9.5m sidewalk +27.0 driveway

+8.5 sidewalk 0

Wusi Avenue –

Binhenan Rd

35m=3.0~8.5m sidewalk +18m

driveway +3.0~8.5m sidewalk

35m=3.0~8.5m sidewalk +18m

driveway+3.0~8.5m sidewalk 0

54

（3）Design of Intersections

The roads to be improved are located in the main urban area where road network is well

established. There are numerous intersecting roads along the route. The key intersections and

their general conditions are shown in the table below. All listed intersecting roads are signal-

controlled ones except those noted in the ‘Remarks “column.

Table 2.3-1 Current Intersecting Roads along Newly Proposed Urban Roads

No. Stake No. Intersecting

Roads

Road

Grades

Planned

Redline

Width(m)

Current

Driveway

Width (m)

Lanes Intersecting

Patterns Remarks

Current Intersecting Roads along the Qiyi Road - Delinghe Road - Bayi Road

1 QK0+000 Changjiang Rd PTR 35/45 18 TW6 十

2 QK0+542.793 Beidajie Avenue STR 22 17 TW4 十

3 QK1+389.780 Wuyi Rd PTR 35 18 TW6 T

4 QK1+423.202 Huanyuanbei

Street STR 30 18 TW6 T

5 QK1+840.923 Beiyuan Alley/

Beixiaojie Street STR 15 7 TW2 十

6 QK2+414.856 Gonghe Rd PTR 30 12/17 TW4 十

7 QK2+983.356 Jianguo Avenue PTR 45 32 TW8 十

8 QK3+271.068 Qingfen Alley STR 20 14 TW4 T No signal control

9 QK3+838.535

（DK0+000） Delingha Rd STR 30 18 TW6 十

10 DK0+323.855

（BK0+000） Bayi Rd PTR 40 28 TW8 十

11 BK0+966.551 Huangzhong Rd PTR 45 32 TW8 十

Intersecting Roads along the Wuyi Road

1 K0+000 Qiyi Rd STR 30 18 TW6 T

2 K0+350.742 Shangbinhe Rd/

Xiabinhe Rd Branch 15 4-5 OW 十 No signal control

3 K1+639.151 Binhenan Rd STR 27.5 18 TW6 十

Intersecting Roads along the Xiguan Avenue

1 K0+000 Huanghe Rd PTR 30 18 TW6 十

2 K0+424.105 Changjiang Rd PTR 45&55 18&27 TW6/TW7 十

Intersecting Roads along the Changjiang Road

1 K0+000 Xiguan Avenue PTR 46 30 TW8 十

2 K0+300 Wusi Avenue PTR 30 18 TW6 十

3 K1+066 Qiyi Rd STR 30 18 TW6 十

4 K1+409 Binhenan Rd STR 30&18 15&9 TW5/TW2 十

Notes: 1. “Primary trunk road” stands for “PTR”; “secondary trunk road” for “STR”; “branch

road” for “BR”.

2. “Two-way” stands for “TW”; “one-way” for “OW”.

1) “Signal control” shall be adopted for intersections of PTR-PTR, while “right-in and right-

out” travel mode for intersections of PTR-BR (non-traffic), intersections of STR-BR and

intersections of units along the roads.

55

2) Intersections along the roads basically keep current driveway lanes. Their entrances have

a driveway lane width of 3.25m, with an adjusted width of 2.75-3.0m under undesirable

circumstances and an adjusted width of 3-3.25m in limited conditions. The edge belt of

driveway fringe will be set up with a width of 0.25m.

3) For intersections of bus corridors, straight and turn-right buses and non-PT vehicles shall

share the outermost lane when an intersecting road is BR or traffic flow of turn-right non-

PT vehicles is low. At the traffic intersection with high flow of non-PT vehicles and less

than 2 straight lanes, no dedicated bus lanes are set up.

4) In order to facilitate lane change of turn- right turn of non-PT vehicles, lane-borrowing zone

and two-stage lane-borrowing signage before passage zoning area shall be set up. At the

intersection with turn-left buses, signage shall be set up at a distance of 150m from the

intersection to indicate lane-changing in advance of buses and entering the turning-left lane

of the inner side.

（4）Design of Roadbeds

1) Design of Roadbed Connection Width

The Changjiang Road (Wusi Avenue – Qiyi Road) and the Xiguan Avenue shall be widened to

both sides of each road for reconstruction, the joints of old and new roadbeds need to have lap

treatment of roadbeds and pavement, with a lap width of not less than 0.5m.

2) Design of Roadbed Protection and Barricades

The land plots on both sides of urban roads under the MR project have been fully developed

with no need for roadbed slope protection design.

Due to the widening of the Xiguan Avenue and the expansion of the Xiguan Bridge, it is

necessary to construct a staircase leading to the Greenway under the bridge. Due to large

amount of excavation, some retaining walls are to be constructed to ensure pedestrian travel.

The Wuyi Road also needs to build a ramp leading to the river greenways. Owing to great

elevation, there is also need to build part of retaining walls to ensure bicycle travel. Cantilever

retaining wall shall be adopted for the wall height of less than 4m, while buttress retaining wall

for the wall height of over 4m.

3) Roadbed Treatment after Bridge Abutment

The Xiguan Bridge will be demolished and rebuilt. For roadbeds behind the bridge beam and

abutment, light embankment + geogrid with fly ash (fly ash: lime = 95: 5, volume ratio) shall

be adopted for treatment, with a treatment length of 40-60m. To prevent differential settlement

at the bridge abutment and reduce the phenomenon of bridge jumping, 8m long reinforced

concrete slabs shall be built after the bridge abutment.

（5）Design of Road Pavement

Combining actual pavement service life and traffic trends, the strategy of completely upgrading

pavement structures shall be adopted for the Qiyi Road, the Delingha Road, the Wuyi Road, the

Xiguan Avenue and the Changjiang Road (Xiguan Avenue ~Wusixi Road, Qiyi Road ~

Binhenan Road).

Changjiang Road (Wusi Avenue ~ Qiyi Road) will be expanded and rebuilt in line with the

metro construction in the future. Like the Biyi Road, driveway pavement in this design will be

constructed with surface-covering treatment: first removing original pavement of 10cm at

56

thickness, then paving 6cm medium Asphalt Concrete (AC-20C) and 4cm fine-grained asphalt

concrete (AC-13C) on it.

Design parameters of pavement structure are detailed in Table 2.3-2.

57

Table 2.3-2 Design Parameters of Pavement Structure

Lane

Types Driveway Lanes Non-driveway Lanes Pedestrian sidewalks

Materials

Type

4cm fine-grained AC（AC-13C） 6cm coloured fine-grained AC

（CAC-13C）

12cm pre-cast concrete slab

bricks

6cm medium AC（AC-20C） 20cm 5% cement-stabilized gravel 3cm M10 cement mortar

8cm rough AC（AC-25C） 20cm grade gravel 10cm C20 reinforced concrete

1cm asphalt covering layer 15cm 5% cement-stabilized

gravel

16cm 5% cement-stabilized

macadam 15cm grade gravel

16cm 4% cement-stabilized gravel

16cm 3.5% cement-stabilized gravel

20cm grade gravel

Total

Thickness 87cm 46cm 55cm

（6）Affiliated Physical Works

1）Bus Stops

Except for the Xiguan Avenue, the 3 remaining newly proposed urban roads are equipped with

bus stops, of which the Qiyi Road has more bus routes in operation, and denser bus stops with

some stops at the distance of less than 300m.

The improvement of the Qiyi Road mainly focuses on dedicated bus lanes. Its outermost lane

is set as the dedicated bus lane. Bus stops are arranged along the sidewalks in the shape of

harbor, and their locations are adjusted as needed taking comprehensive consideration lands on

both sides, PT demands and road conditions.

2）Public Bicycles

The MR project intends to set up a pair of public bicycle service points on both sides of the

road in conjunction with Wuyilu Bus Stop along the Wuyi Road and a public bicycle service

point in conjunction with the Shengjunqu Bus Stop in the sidewalk on the north side of the Qiyi

Road. In addition to public bicycles, service facilities include lock piles, management boxes,

bumper piles and the stuff. Pavilion shelters (booth shed) will be set up according to the road

conditions set booth shed.

3）No-barrier Design

Requirements of no-barrier design are described in Table 2.3-2。

Table 2.3-2 Design Parameters of Pavement Structure

No. Activities Design Requirements

1 Road Sections

Blind walking pavements will be laid out for visually impaired persons on the road sections in order to

guide them in walking by using foot touching sense. Those pavements will be built continuously on the

road sections with a width of 30-60cm. They are generally located 0.25-0.5m away from the outer green

belts or tree pools and can be adjusted according to different widths of sidewalks. At the turning point

of blind walking pavements, an indicative blind pavement will be set up.

2 Intersections

For intersections, three-side stone ramps on the slope fringe are provided at the curbs corresponding to

pedestrian crossing, with a slope gradient of 1:12 and their width of crosswalks being chosen according

to the width of the sidewalk. The underpass of the ramp shall not be more than 20mm above the floor

58

of roadway. Intersection crosswalk lines connects both sides of roadway, through the reduced height of

the road and isolation zones, thus meeting the requirement of wheelchairs travel.

3 Entrances /

Exists

For those with fewer vehicles going in or out of units and small width of gates along the road sections,

entrances/exits shall be set up in the form of 3-side slope of lowering side-stones. Their sidewalk

(upward traveling direction) has a gradient of 1:20, with continuous blind walking pavement running

through. For those with more vehicles going in or out of units and big width of gates along the road

sections, their sidewalk entrances/exists shall be set up in the form of intersectional cross-border

stones, having single-sided ramp slope on the sidewalks with a gradient of 1:20, and having an indicative

blind walking pavement at upward slope.

4 Bus Stops

At bus stops, at the corresponding position of sidewalks, there will be an indicative blind walking

pavement and a wheelchairs ramp for the disabled to get on and off the bus. On the sidewalks, indicative

and traveling blind walking pavements are connected.

5 Street-crossing

Facilities

Indicative blind walking roads shall be provided at stairways of pedestrian footing bridge and

underground passages, with handrails to be set up on their both sides. Protective railings will be installed

within triangular space area under the pedestrian footing bridge, and an indicative blind walking

pavement be set up outside of peripheral edges of the structure.

4）Road Traffic Safety and Management Facilities

① Traffic Signs

According to the Codes for Setting Traffic Signs & Markings of Urban Roads (GB51038-2015),

traffic markings and traffic signs such as warnings, prohibitions, indications and directions shall

be implemented.

② Traffic Markings

Road markings mainly involves demarcation lines of dedicated bus lane, demarcation lines of

driveway, fringe lines of driveway, harbor-shaped bus stop lines, dedicated bus stop lines,

pedestrian crossing lines, diversion lines, orientation arrows, etc.

④ Traffic Signal Facilities

To facilitate traffic organization and management, traffic signal facilities at the major

intersections shall be set up, including semaphores, signal lights, signal poles and foundations,

sun wells, communication pipes and cables. At the pedestrian crossing, pedestrian traffic lights

can be added depending on the flow of pedestrians crossing the street so as to ensure their safety.

（7）Lightening Works

1）Forms and Arrangement of Lighting Facilities

Udder the MR project, road lighting facilities will be provided for the entire road route. They

will take the form of double-lined street lighting, that is, street lights are symmetrically arranged

on the sidewalks. Double-lined street lights are set up to 12m high, with an interval of 35m. In

principle, existing lighting systems taken advantage of, based on specific layout of cross-section

and canalization, lighting facilities shall use energy-saving high-voltage sodium lamps or LED

lamps based on specific layout of cross-section and canalization, with a single lamp power

factor after compensation of not less than 0.8.

2）Design of Power Supply and Allocation

① Electric Load Grade

Road lighting shall have Grade III electric load.

59

② Power Supply Scenario

Road lighting under the MR project shall use 3-phase power supply, with 5-core cross-section

armored cable placed in the proposed cable gallery under the steel pipe protection while passing.

For each lamp, its basic setting shall adopt repeated grounding connection, while its lamps are

under fuse protection.

③ Lightning Protection and Grounding System

For grounding system for TN-S, artificial grounding, lightning protection, protection shall share

the common grounding body, with grounding resistance of not more than 4 ohms. Basic settings

of street lights will use separate groundings. Street lighting protection lines need to have

repeated grounding at an interval of 50m.

All shells of metal structures such as street lights and their control boxes shall be well grounded.

（8）Greenery Works

Greenery of newly proposed urban roads mainly features central division belts, side division

belts and roadside trees.

Since green space of central division belts is adjacent to the overtake lane of driveway, it is wise

to select plant species that are resistant to drought, cold, infertility, pollution, pests and diseases.

According to the size of each division belt, it is important to match plant varieties to be planted.

Vertical greening at different levels needs to be taken into comprehensive consideration to

increase the total leaf area, thus increasing ecological benefits.

The MR project is directed towards primary trunk roads or secondary trunk roads under the

urban roads component. In the design, it is better to choose tree species with even canopy and

small difference in individual growth, or those that can be frequently pruned, thus facilitating

the development of good tree-column landscape along the roads. Meanwhile, it is necessary to

consider dislocation arrangement of underground cable ditches to avoid obstructing the

absorption of nutrients from the soil under the sidewalks.

2.3.2 Bridge Works

Bridge works under the MR project mainly focuses on the demolition of the Xiguan Bridge

over the Nanchuan River.

1）Overview of the Present Xiguan Bridge

The Xiguan Avenue also serves as an important gateway across the Nanchuan River and

connecting commercial centers on both sides of the river. The Xiguan Bridge has a total length

of 43.2m with a span combination of 9.6m + 24m + 9.6m, and a total bridge beam width of

19.74m which consists of 3.25m sidewalk + 13.2m driveway + 3.25m sidewalk. The upper and

lower structures of the bridge are single-hole and double-cantilever reinforced concrete

composite beams and gravity piers, respectively, and the bridge deck is paved with asphalt

concrete.

60

Table 2.3-12 Present Situation of Xiguan Bridge

The Xiguan Bridge was built in 1959 and rehabilitated and strengthened in 2002 and 2011.

Since then, testing has been carried out on a regular basis. According to the test results, the

upper structure of Xiguan Bridge has been rated as "D"; its lower structure as "B" and its bridge

deck as "C". The entire bridge shall be demolished and reconstructed. .

2）Present River Course

The present Xiguan Bridge is located at the lower reaches of Nanchuan River, and its road

centerline is perpendicular to the Nanchuan River. The river has a trumpet-shape mouth, with a

width of 51m at the estuary and a width of 30m at the bridge. On both sides of the river are

green parks. The present Nanchuan River has rubber dams at upstream and downstream of its

bridge site. The river has been rehabilitated, with its embankment having a flood control

criterion of 1/100 years (one occurrence in 100 years).

3）Design Scenario for the Xiguan Bridge

① Technical Criteria

Load standard: City-A level; crowd load: 3.5kN / m2

Bridge cross slope: 2.0%

Design flood frequency: 1/100

Earthquake resistance requirements: Xining Municipality has a basic seismic intensity of VII

degree, a peak acceleration of ground motion of 0.1g. The project site is of Category VII soil

type, with a design characteristic period of 0.40s and no liquefied soil layer.

Security Level: The project site has a design baseline period of 100 years, with its bridge

structure design safety rating of 1.1.

② Bridge Design Scenario

According to the overall road design, the newly proposed bridge shall adopt a scheme of 70m

+ 40m = 110m two-span continuous steel box composite beam. Its bridge cross-section layout

shall be identical to its planning, with the same total width of 46m.

Cross Section Layout shall be 2.0 (Sidewalk) + 2.5m (Non-driveway Lane) +3.5 (Division Belt)

+ 30.0m (driveway Lane) + 3.5m (Division Belt) + 2.5m (Sidewalk) = 46m

Sidewalks on both sides of the Nanchuan River will have a net height of more than 4.0m.

Upper structure design: The bridge shall have its upper structure of 70 + 40m continuous steel

box composite beam. In terms of upper structure, the whole bridge is designed into four parts.

its left and right bridges are 8.0m wide and its middle two bridges are 30m wide. Its structural

façade changes are designed according to the requirements of landscape line/shape. It has a

middle pier beam height of 4.25m, the minimum span-middle height of 3.05m with a transition

61

curve at the middle. Bridge deck will be made up of prefabricated reinforced concrete slabs,

with a slab thickness of 0.28m. The driveway will have a two-way slope gradient of 1.5%. The

Xiguan Bridge shall have a total width of 46.0m.

Lower structure design: for bridge landscape, consideration is given to its integrated shape

design of the beam and piers, with its outer piers being inverted triangle solid pier and its middle

piers being square column pier. Considering the impact over its surrounding buildings, the

lower part of the bridge under the MR project shall have bored-and-grouted piles, with Φ1500

bored and grouting piles in the pile foundation. It has a built-in abutment in the ground.

Figure 2.3-13 Effects of the new Xiguan Bridge

2.3.3 Drainage Works

（1）Drainage System

The newly proposed works shall adopt a gravity drainage mode in terms of rainwater drainage.

rainwater pipelines are laid out under the ground, and rainwater is discharged into the

Huangshui River nearby after being collected. Under the MR project, the planning and current

status of storm water drainage as well as related proposed components are detailed in Table 2.3-

4.

The works area is under jurisdiction of Xining No.1 Sewage Treatment Plant in terms of

drainage system. The sewage is collected by the municipal sewage pipeline network and then

discharged into Xining No. 1 Sewage Treatment Plant. The planning and current status of

wastewater discharge as well as related proposed components are shown in Table 2.3-5.

62

63

Planning and Current Status of Storm water Drainage

as well as Related Proposed Components

Table 2.3-4

Road Names

Planned

Rainwater Pipelines Present Status of Rainwater Pipelines

Newly Proposed Components Quantity

(Pipes)

Pipe

Diameter Discharge Quantity

Pipe

Diameter Discharge

Qiyi Rd

Changjiang Rd ~

Beidajie Avenue 2

1 westward

from center DN500

Connecting with pipelines

of Changjiang Rd 2

1 northern

side N1000

Connecting with pipelines at

downstream on northern side As the Qiyi Rd has a phenomenon of mixing

storm water pipeline with sewage pipeline in the

course of connection, the MR project considers

converting storm water pipeline into sewer

pipeline and laying one DN1000 rainwater pipe

under the road centerline. The rainwater is

discharged into the Huangshui River after being

collected.

1 eastward

from center DN500


of Beida Avenue

1 southern

side DN600

Beidajie Avenue ~

Wuyi Rd 1 DN600


of Wuyi Rd (DN1400) 1 DN600

Connecting with pipelines of

Wuyi Rd (DN1000)

Wuyi Rd ~

Gonghe Rd 1

DN600~

DN800


of Gonghe Rd(DN1800)

1 DN600~

DN1000

Connecting with pipelines of

Jianguo Avenue (DN1000) Gonghe Rd ~

Jianguo 1 DN600


of Jianguo Avenue

(DN1400)

Jianguo Avenue ~

Delingha Rd 1

DN600~

DN800


at downstream 1

DN600~

DN1000

Directly discharged into the

river

Delingha Rd 1 DN1600 Connecting with pipelines

at downstream 1 DN1000

Connecting with pipelines at

downstream

For the Delingha Rd, the existing storm water

pipeline is inconsistent with its planning.

Therefore, its rainwater pipeline needs to be re-

laid and it should be laid out in a single pipe. The

drainage pipeline shall be arranged according to

the original pipeline position, by laying a

DN1600 rainwater pipeline with a length of 400m

from south to north. The rainwater can be directly

discharged into the river through the downstream

pipeline transfer. In order to facilitate easy access

of pipelines from neighborhoods on both sides of

the road, a number of DN400 pipelines reserved

for the neighborhoods along the way are set up

along the way, with a total length of about 80m.

64

Wuyi Road 1 DN1400 3

2 western

side

DN800~

1200


river Reserved for Use

1 eastern

side DN500

Connecting with the farthest

westward pipelines (DN800)

Changjiang Rd 1 DN800~

DN1000

directly discharged into the

river 1 DN400

Comprehensively connecting

with sewage pipelines at

downstream

For the Changjiang Rd, the existing storm water

pipeline is inconsistent with its planning.

Therefore, its rainwater pipeline needs to be re-

laid and it should be laid out in a single pipe. The

drainage pipeline shall be arranged according to

the original pipeline position, by laying a

DN1600 rainwater pipeline with a length of 400m

from south to north. The rainwater can be directly

discharged into the river after being collected. In

order to facilitate easy access of pipelines from

neighborhoods on both sides of the road, a

number of DN600 pipelines reserved for the

neighborhoods along the way are set up along the

way, with a total length of about 600m.

Xiguan Avenue 1 DN500 Directly discharged into

the river 1

DN200~

DN600


river

There is need to newly construct a new rainwater

pipeline, which will be laid out on both sides. Its

position shall be set under non-driveway

pavement at a distance of 19.5m from the road

centerline. DN600 rainwater pipelines shall be

laid out from east to west and from west to east

respectively, with a total length of 900m. After

being collected, the rainwater is directly

discharged into the Huangshui River. In order to

facilitate easy access of pipelines from

neighborhoods on both sides of the road, a

number of DN600 pipelines reserved for the

neighborhoods along the way are set up along the

way, with a total length of about 600m.

65

Planning and Current Status of Sewage Drainage

as well as Related Proposed Components

Table 2.3-5

Road Names

Planned

Sewage Pipelines Present Status of Sewage Pipelines

Newly Proposed Components Quantity

(Pipes) Pipe Diameter Discharge Quantity Pipe Diameter Discharge

Qiyi Rd

Changjiang Rd ~

Jianguo Avenue 1 DN500~DN800

Connecting with sewage

pipelines of Jianguo Rd 1 DN800~DN1000


pipelines at downstream Original pipelines reserved for use

Jianguo Avenue ~

Delingha Rd 1 DN500


pipelines at downstream 2

1 DN300 Connecting with sewage

pipelines at downstream 1 DN500

Delingha Rd 1 DN400 Connecting with sewage

pipelines of Qiyi Rd 1 DN300


pipelines of Qiyi Road Original pipelines reserved for use

Wuyi Road 1 DN800 Connecting with sewage

pipelines of Binhe Road 2

Western

side DN300


pipelines of Binhe Road Original pipelines reserved for use

Eastern

side DN800

Changjiang Rd Nil Nil Nil 1 DN600 Connecting with sewage

pipelines of Binhe Road Original pipelines reserved for use

Xiguan Avenue No sewage treatment planning No current sewage pipelines

Since the road has no planned sewage

pipelines, it is determined that the road

does not include sewage pipelines in the

design.

All of sewage water shall eventually flow into Xining No.1 Sewage Treatment Plant, and they will be discharged after uniform treatment.

66

（2）Pipeline Materials

Based on the Feasibility Study report of the MR project, HDPE double-wall winding pipe is

recommended for DN400 ~ DN1000 rainwater and sewage pipelines of this works, and

Gongkou type reinforced concrete pipe for Ф1600 rainwater pipelines.

（3）Pipelines Construction

Slotted pipeline engineering shall be adopted for drainage works under the MR project.

HDPE socket double-wall winding tube shall be used for DN300 ~ DN600 rainwater pipeline.

Its foundation shall take the form of 15cm gravel sand + 5cm in coarse sand and medium coarse

sand in the dry dock to the tube top above 50cm. Grade II T-type reinforced concrete pipe will

be used for Ф1600 rainwater pipe. For reinforced concrete pipe, its concrete foundation

consisting of C20 concrete will be replaced by C25 concrete. The trench above the pipeline is

backfilled with lime soil (plain soil mixed with 4% lime evenly) backfill to the bottom surface

or the original ground of roadbed (controlled by the lower elevation). Docking and backfill

density should meet the requirements of relevant construction and acceptance criteria.

All wells are of reinforced concrete structure, with a foundation of reinforced concrete

foundation and a cover of anti-theft type steel fiber concrete. Located under the driveway, the

wells should take self-adjusting anti-settlement cover and detachable base whose bearing

capacity of no less than city B level. Their inner walls are made of special polyurea polyurethane

anticorrosive coating for anticorrosive treatment. According to the requirements of "one bottom,

two middles and two sides", high-pressure airless spraying shall be carried out according to the

requirements of "one bottom and three sides". The total thickness of its coating shall not be less

than specification. A sewage interception basket will be set for rainfall inlet. Newly built check

wells shall be installed anti-fall device (load-bearing capacity ≥ 100kg). Newly built drainage

pipeline needs CCTV monitoring.

2.3.4 Sponge City Design

The MR project sponge city design involves combining greening engineering and drainage

engineering and adopting ecological tree pool and rainwater garden technical measures to

enable the road surface rainwater to be stored in the rainwater garden in the green belt, and then

discharged after infiltration, thus producing effects like emission reduction, slow drainage and

interception of sewage. Five and four rainwater gardens will be arranged respectively in the

greenbelts by the pedestrian sidewalks on both sides of the Qiyi Road (Changjiang Road to

Delingha Road) and the Xiguan Avenue. For the Changjiang Road, the Wuyi Road and the

Delingha Road, given different situations of buildings along the existing roads, combined with

existing conditions like transformation of cross-section layout, and no facilities of rainwater

infiltration, storage and regulation within the scope of red line. No consideration is given to

designing construction contents of sponge city.

（1）Design Scenario

The sponge city design scenario under the MR project is shown in Table 2.3-7.

Table 2.3-7 Sponge City Design Scenario

67

No. Design Items Scenario Requirements

1 Collection

Rainwater gardens shall be arranged in combination with green landscape layout. In

rainy seasons, storm water runoff goes to the edge of roadside along the roadway

slope. Road teeth opening leads the runoff into rainwater gardens. A designed

rainwater garden can accommodate water with a depth of 20 ~ 30cm and at a speed of

penetration into the soil of 10cm/h. When the amount of water exceeds the capacity

of all rainwater gardens, spilled rainwater enters the municipal drainage system. Road

gutters are arranged at regular intervals with the elevation of rainfall inlets lower than

that of the road stone slabs but higher than that of the greenery belt planting soil level.

2 Slow drainage

/water retaining

The rainwater garden shall be equipped with corresponding diversion facilities to

ensure the inflow of rainwater into the Greenfield for scattered infiltration. The

rainwater garden also helps to slow down the flow of water and its root structure

allows for water penetration into the soil.

3 Interception

The combination of planting soil + gravel layer + permeating tube plays a role of

filtration. The rainwater entering the rainwater garden can effectively remove the

suspended or floating particles, organic pollutants, heavy metal ions and pathogens

and other harmful substances from the runoff through a series of filtrations such as

green planting soil and gradation gravel, and then infiltrate the seepage water to

supplement groundwater . Its water quality after filtering shows a significant decrease

in such indicators of SS, COD and pollution load.

4 Discharge

With the increase of rainfall time and amount, the rainwater level in the rainwater

garden rises higher than that of the inlet and then the overflowed rainwater enters the

municipal rainwater check well and flows into the municipal pipe network. When it

rains, the rainwater into the garden first is the initial rainfall resulting in pavement

erosion with a high concentration rate of SS, COD, thus having poor water quality.

The early rainwater is infiltrated through the planting soil and gravel layer in the

garden, and then goes down through the permeating tube to complement groundwater,

thus ensuring the quality of groundwater. The overflow rainwater is the surface runoff

generated in the middle and later periods of precipitation. It has a low concentration

rate of SS and COD. Its water quality is much improved compared with the initial

rainfall. The overflowed rainwater is directly drained into the river via the municipal

pipeline network to ensure that the water environment and water quality of the river

will be less affected.

5 Ecologic Trees

Ecological tree pool packing layer should be equipped with permeable geotextiles in

the middle to prevent the invasion of surrounding native soil. Its geotextile

specifications are in the range of 200-300g / m² , and geotextile lap width should not

be less than 200mm. When ecologic-tree pool is located above the underground

building, if the clay area or heavy collapsible loess may be inclined to the risk of

collapse, or when the bottom outlet water is to be used for collecting and storing, the

impermeable layer at the bottom and the periphery can be provided, with a perforated

collecting pipe to be set up. For Anti-seepage layers, it is possible to select SBS web

geotextile and PE waterproof blanket, alternatively, HYP-GCL45 infiltration blanket

or more than 300 thick clay.

68

Figure 2.3-16 Sectional Drawing of Rainwater Garden

Table 2.3-15 Ecologic Tree Pool

（2）Physical Norms for Rainwater Garden Facilities along the Roads

The physical norms for rainwater garden facilities are shown in Table 2.3-7。

Table 2.3-7 Physical Norms for Rainwater Garden Facilities

No. Road Names Rainwater Garden Areas

（m²） Remarks

1 Qiyi Road 2480 To arrange combining with

part of green landscape nodes

2 Xiguan Avenue 2520 To arrange combining with

part of green landscape nodes

3 Changjiang Road / Not to consider including

69

4 Wuyi Avenue / sponge city contents

2.3.5 Common Utility Tunnels

（1）Present Situation of Existing Pipelines

In the Common Utility Tunnels (CUT) of the MR project, storm water and sewage pipelines

shall be designed and constructed in a separate way as part of drainage engineering works. For

the present situation of existing pipelines under the MR project, please refer to Table 2.3-8; for

sectional drawings of existing pipelines, please see Figure 2.3-16.

Qiyi Rd Pipeline Section Drawing Delingha Rd Pipeline Section Drawing

Wuyi Rd Pipeline Section Drawing Changjiang Rd Pipeline Section Drawing

Xiguan Avenue Pipeline Section Drawing

70

Table 2.3-14 Integrated Section Drawings of Existing Pipelines of Project Roads

Table 2.3-8 Present Situation of Existing Pipelines

Pipeline Types

Qiyi Rd

(Changjiang Rd ~

Delingha Rd)

Delingha Rd

(Qiyi Rd ~

Bayi Rd)

Wuyi Rd

(Qiyi Rd ~

Binhenan Rd）

Xiguan Avenue

(Huanghe Rd ～

Changjiang Rd

Changjiang Rd

(Qiyi Rd ~

Binhenan Rd)

Water Supply

Pipelines

There are 1 to 3 water

supply pipelines under

the sidewalks on the

northern side of the

road. There are two

pipelines (Changjiang

Rd ~ Beidajie Av), with

a diameter of DN300 ~

DN400, at a distance of

about 11.5m and 13.0m

respectively from the

road centerline. There

are three pipelines

(Beidajie Av ~ Jianguo

Av) with a diameter of

DN150 ~ DN500,

about 12.0m, 12.5m

and 13.5m from the

road centerline.; There

is 1 pipeline (Jianguo

Av ~ Delingha Rd)

with a diameter of

DN300, respectively at

a distance of about

12m from the road

centerline

There are two

existing water

supply pipelines

under sidewalks

on the western and

eastern sides of the

road. The western

pipeline is with a

diameter DN100

and at a distance

of 13.0 m from the

road centerline;

the eastern

pipeline is with a

diameter of

DN100 at a

distance of 7.0m

from the road

centerline.

Interfaces are

reserved for

connection at road

intersections and

blocks.

There are 1-2

water supply

pipelines under the

driveways on the

eastern side of the

Road. The one

(Binhe Rd ~

Shangbinhe Rd) is

with a diameter of

DN500 at a

distance of about

3.5m from the

road centerline.

The one

(Shangbinhe Rd ~

Qianyi Rd) with

a diameter of

DN150 ~ DN500

at a distance of

about 2.5m and

3.0m from the

road centerline.

Interfaces are

reserved for

connection at road

intersections and

blocks

There are 1 water

supply pipeline

under the sidewalk

on the southern side

of the Road. The

one (Binhe Rd ~

Shangbinhe Rd) is

with a diameter of

DN300 at a distance

of about 13.0m from

the road centerline.

Interfaces are

reserved for

connection at road

intersections and

blocks.

There are 1 to 3

water supply

pipelines under the

driveways on the

western side and

the sidewalks on

the eastern side of

the road. The one

on the western

side is with a

diameter of

DN500 at a

distance of 5.5m

from the road

centerline. The

other two on the

eastern side are

with a diameter of

DN100 and

DN700

respectively, at a

distance of about

9.5m and 12.5m

respectively from

the road

centerline .

Interfaces are

reserved for

connection at road

intersections.

Information

Pipelines

There is 1 pipeline

each for TV, CCTV

and

Telecommunication

under the sidewalks on

the southern side of the

road, with a distance of

12.0m, 13.5m and

14.5m respectively

from the road

centerline. Interfaces

are reserved at road

intersections and

blocks.

There is 1 pipeline

for TV under the

sidewalk on the

western side of the

road, with a

distance of 14.6m

from the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

There is 1 pipeline

each for TV,

CCTV under the

sidewalks on the

western side of the

road, with a

distance of 13.0m

and 11.5m

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

There is 1 pipeline

each under the

sidewalks on the

northern and

southern sides of the

road, with a distance

of 13.6m, and 13.5m


road centerline.

Interfaces are

reserved at road

intersections and

blocks.

There is 1 pipeline

each under the

sidewalks on the

western and


road, with a

distance of 9.3m,

and 9.5m

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

Gas Pipelines

There is 1 gas pipeline

under the driveway on



5.3m from the road



intersections and

blocks.

There is 1 gas

pipeline each

under the

sidewalks on the

western and


road, with a

distance of 12.0m

and 13.2m

There is 1 gas

pipeline under the

driveway on the

western side of the

road, with a

distance of 7.5m

from the road

centerline.

Interfaces are

There is 1 gas

pipeline under the

driveway on the

western side of the

road, with a

distance of 8.3m

from the road

centerline.

Interfaces are

71

Pipeline Types

Qiyi Rd

(Changjiang Rd ~

Delingha Rd)

Delingha Rd

(Qiyi Rd ~

Bayi Rd)

Wuyi Rd

(Qiyi Rd ~

Binhenan Rd）

Xiguan Avenue

(Huanghe Rd ～

Changjiang Rd

Changjiang Rd

(Qiyi Rd ~

Binhenan Rd)

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

reserved at road

intersections and

blocks.

reserved at road

intersections and

blocks.

Telecommunication

Pipelines

There is 1 pipeline for

telecommunication

under the sidewalk on



13.0m from the road



intersections and

blocks.

There is 1 pipeline

for

telecommunication

of power supply

under the sidewalk

on the eastern side

of the road, with a

distance of 12.0

from the road

centerline.

There is 1

pipeline under the

sidewalks on the

western side of the

road, with a

distance of 11.5m

and 1.3m

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

There is pipeline

for

telecommunication

each under the

driveway and

sidewalk on the

western side of the

road, with a

distance of 5.5m

and 10.5m

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

Power Supply

Pipeline

There is 1 pipeline for

power supply under the

sidewalk on each side

of the road, with a

distance of 11.0m from

the road centerline.

Interfaces are reserved

at road intersections

and blocks.

There is 1 pipeline

for power supply

under the sidewalk

on each side of the

road, with a

distance of 9.5m

from the road

centerline.

There is 1 pipeline

for power supply

under the sidewalk

on each side of the

road, with a

distance of 11m

(western) and

10.5m (eastern)

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections.

There is 1 pipeline

for power supply

under the sidewalk

on each side of the

road, with a distance

of 7.5m (southern)

and 9.5m (northern)


road centerline.

There are 1-3

pipelines for

power supply

under the sidewalk

on both sides of

the road, with a

distance of 9.5m

(western)and

10.5m (eastern)

and 16.0m

(eastern)

respectively from

the road

centerline.

Interfaces are

reserved at road

intersections and

blocks.

72

（2）Design Scenario for Common Utility Tunnels

The design scenario for proposed CUTs under the MR project are detailed in the table below.

Table 2.3-9 Design Scenario for Proposed Common Utility Tunnels

Road Names Design Scenario Design Drawings

Qiyi Rd

(Changjiang Rd

~

Delingha Rd)

An additional cableway shall be built under the

sidewalk on the northern side of the road, with

a length of about 3900m. Its size is W×H =

2000mm×2000mm (net size) and its covering

thickness 500mm. All power supply and

telecommunication lines will be moved into the

cableway. Meanwhile, part of its water supply

pipes of DN150 ~ DN500 to be transferred will

be provided, with a length of about 4000m.

Delingha Rd

(Qiyi Rd ~

Bayi Rd)

An additional CUT shall be built under the

sidewalk on the eastern side of the road, with a

length of about 350m. Its size is W×H =

1950mm×2000mm (net size) and its covering

thickness 500mm. All power supply and

telecommunication lines will be moved into the

CUT. Meanwhile, part of its DN300 gas

pipelines to be transferred will be provided,

with a length of about 3800m.

Wuyi Rd

(Qiyi Rd ~

Binhenan Rd）

An additional integrated CUT shall be built

under the sidewalk on the western side of the

road, with a length of about 700m. Its size is

W×H = 1950mm×2000mm (net size) and its

covering thickness 500mm. All power supply

and telecommunication lines will be moved

into the CUT.

Xiguan Avenue

(Huanghe Rd ～

Changjiang Rd


under the sidewalk on the northern side of the





into the CUT.

73

Road Names Design Scenario Design Drawings

Changjiang Rd

(Qiyi Rd ~

Binhenan Rd)


under the sidewalk on the western side of the





into the CUT.

74

2.4 Key Technical Indicators and Traffic Flow Forecasting

2.4.1 Key Technical Indicators

In the proposed design scenario, its technical indicators are shown in Table 2.4-1 and its

construction sizes in Table 2.4-2.

Table 2.4-1 Key Technical Indicators under the MR Project

Works

Types Index Parameters

Road Names

Qiyi Rd Integrated

Improvement Works Wuyi Rd

Xiguan

Avenue

Changjiang

Rd Qiyi Rd

Delingha

Rd Bayi Rd

Urban

Roads

Road Grade STC STR PTR PTC PTC PTC

Redline Width（m） 30 30 40 35 46 35-45

Designed Speed（km/h） 40 40 60 40 50 50

Road Length（m） 3838.53 323.85 966.55 640.67 424.11 1409.87

Road Pavement Load BZZ-100 Standard axle load

Designed Duration Asphalt Pavement Design Period: 15 years

design life of saturated traffic volume: 20 years

Minimum net height for

building clearance Driveway 4.5m；sidewalk 2.5m

Earthquake fortification

Criteria

Fortification for: basic seismic intensity of 7 degrees and

ground vibration peak acceleration of 0.1g

General minimum radius of

Flat curve surface（m） 300 / / / 900 500

Minimum length of

flat curve surface（m） 110 / / / 240.681 175.519

Minimum length of slow

curve（m） 35 / / / 45

Maximum longitudinal slop 2.8% 3.65% 1.03% 3.0% 1.004% 2.7%

Minimum slope length

（m） 111.849 112.573 199.922 110 130 111.637

minimum radius of

Vertical curve

凸 2800 3800 50000 40000 6000 7000

凹 2700 / / 2200 5000 8500

Bridge

(Xiguan

Bridge)

Index Parameters Indicator requirements

Quantity 1 bridge/110m（Xiguan Bridge across the Nanchuan River

on the Xiguan Avenue）

Load Criterion City－Class A

Person Load 3.5kN/m²

Bridge Deck Cross Slope 2.0％

Designed Flood Frequency 1/100

Headroom Limit Sidewalks on both sides of the Nanchuan River,

with a net height of more than 4.0m

Seismic requirement (A)

Earthquake in Xining Municipality has a basic intensity of

VII degree, a ground vibration peak acceleration of 0.1g, the

site soil of Category II, with no liquefied soil layer

Structure Design Security Grade Design baseline period is 100 years, with bridge structure

design safety grade of 1.1.

Notes: 1. STC stands for “Secondary Trunk Corridor”; STR for “Secondary Trunk Road”;

75

PTR for “Primary Trunk Road’; PTC stands for “Primary Trunk Corridor”.

Table 2.4-2 Constructional Sizes under the MR Project

No. Indicators Units Physical Quantity / Amount

1 Total Route Mileage km 7.60

2 Total Land Area hm² 25.84

3 Earthwork

Digging（万

m³） 18.86

Filling（万 m³） 5.62

Discarding（万

m³） 13.24

4 Bridge bridge 1/110m

76

2.4.2 Traffic Flow Forecasting

According to the investigational statistics of the Feasibility Study report under the MR project,

current average hourly traffic volumes in the daytime and at night for all road sections of newly

proposed components are shown in Table 2.4-3.

Table 2.4-3 Statistics of Current Vehicle Traffic Volume for All Road Sections

Years Road Sections

Rush Hour Daytime Average Hour (v/h) Night Average Hour (v/h)

（v/h） Small

Vehicles

Medium

Vehicles

Large

Vehicles

Small

Vehicles

Medium

Vehicles

Large

Vehicles

Year 2017

（Current

Existing

Vehicle Traffic

Volume）

Qiyi Rd

Changjiang Rd-

Jianguo Rd

Jianguo Rd -

Delingha Rd

Delingha Rd

（Qiyi Rd –

Bayi Rd

Bayi Rd

(Delingha Rd –

Huangzhong Rd)

Wuyi Rd Qiyi Rd –

Binhenan Rd

Xiguan Av Huanghe Rd –

Changjiang Rd

Changjiang

Rd

Xiguan Rd –

Wusi Av

Wusi Av –

Qiyi Rd

Qiyi Rd –

Binhenan Rd

According to the Feasibility Study report under the MR project, newly proposed components

have the predicted years of Year 1 (2019), Year 7 (2025) and Year 15 (2033) during the project

operation. They have a daytime ratio of immediate, interim and long terms of 81.5%. The

percentages of different vehicle types are shown in Table 2.4-4. After calculation by conversion,

average hourly traffic volumes for all urban roads and all feature years are obtained under the

MR project. They are shown in Table 2.4-5.

Table 2.4-4 Forecasting Results of Different Vehicle Types for

All Newly Proposed Urban Roads

Road Sections

Vehicle Type Percentage %

Small

Vehicles Medium Vehicles Large Vehicles

Qiyi Rd

Changjiang Rd-Jianguo Rd

Jianguo Rd -Delingha Rd

Delingha Rd

（Qiyi Rd – Bayi Rd)

Bayi Rd (Delingha Rd –

Huangzhong Rd)

Wuyi Rd Qiyi Rd – Binhenan Rd

Xiguan Av Huanghe Rd – Changjiang Rd

77

Changjiang Rd

Xiguan Rd – Wusi Av

Wusi Av – Qiyi Rd

Qiyi Rd –

Binhenan Rd

78

Table 2.4-5 Forecasting Results of Vehicle Traffic Volumes for

All Newly Proposed Urban Roads

Years Road Sections

Rush

Hour

Daytime Average Hour

(v/h) Night Average Hour (v/h)

（v/h） Small

Vehicles

Medium

Vehicles

Large

Vehicles

Small

Vehicles

Medium

Vehicles

Large

Vehicles

2019

Qiyi Rd



Delingha Rd

（Qiyi Rd – Bayi Rd）


Huangzhong Rd)


Xiguan Av Huanghe Rd – Changjiang

Rd

Changjiang

Rd


Wusi Av – Qiyi Rd

Qiyi Rd –

Binhenan Rd

2025

Qiyi Rd



Delingha Rd



Huangzhong Rd)



Rd

Changjiang

Rd


Wusi Av – Qiyi Rd

Qiyi Rd –

Binhenan Rd

2033

Qiyi Rd



Delingha Rd



Huangzhong Rd)



Rd

Changjiang

Rd


Wusi Av – Qiyi Rd

Qiyi Rd – Binhenan Rd

A contrastive analysis is made of the current traffic flow data of all newly proposed urban roads

and the traffic flow forecasting data of different stages of Year 1 (2019), Year 7 (2025) and Year

15 (2033) during the project operation as indicated in the Feasibility Study report of the MR

project. Based on the analysis, it is found that the Qiyi Road (Changjiang Road ~ Jianguo Road)

has basically reached the saturation of current vehicle traffic volume. As a result of the reduction

of Non-PT traffic lanes on the Qiyi Road (the 4 original bidirectional lanes has been adjusted

79

to the 4 present bidirectional lanes) after the provision of dedicated bus lanes, its traffic volume

has decreased accordingly. Therefore, the Qiyi Road (Changjiang Road ~ Jianguo Road) after

the completion of the works, the predicted traffic volume in 2019 during the immediate term

will be slightly lower than that of the current vehicle traffic volume. In 2025 (interim term) and

2033 (long term), their traffic volumes will almost the same as that of the current one. Except

for the Qiyi Road (Changjiang Road ~ Jianguo Road), the current traffic volumes of other urban

roads have not reached their designed traffic volume, and the predicted traffic volume data in

near, medium and long terms have increased after the operation of the project.

2.5 Land Acquisition for Newly Proposed Components

This project will rebuild four urban roads, namely, the Qiyi Road, the Wuyi Road, the Xiguan

Avenue and the Changjiang Road, within the existing red line. The project will permanently

have a total land area of 25.48 hm², occupying all the existing road land with no new permanent

land to be acquired, thus without involving house demolition for the project construction.

Since project road is of half-side construction, its temporary construction site will be arranged

in the half-way road where the road is being constructed and its earthwork of pipe network and

tunnel excavation temporarily piled in the construction area. Given these above-mentioned,

there shall be no additional temporary land occupation for project construction.

Table 2.5-1 Permanent Land Acquisition of Newly Proposed Components

Road Names

Qiyi Road

Integrated Improvement Works Wuyi Rd Xiguan AV Changjiang Rd Total

Qiyi Rd Delingha Rd Bayi Rd

Redline Width（m）

Length (km)

Land floor Area (hm2)

Land Acquisition Types Road land

Available

Road land

Available

Road land

Available

Road land

Available

Road land

Available

Road land

Available

Road land

Available

2.6 Earthwork

The MR project involves a total of four urban roads: Qiyi Road, Wuyi Road, Xiguan Avenue

and Changjiang Road. The earthwork of excavation works mainly involves foundation

treatment, removal of old pavement and basic layers, underground tunnel excavation,

construction of drainage pipes and common utility tunnels, bridge foundation drilling slag and

other earthwork. The project has a total amount of excavation of 188,600 m³, including an

amount of fill of 56,200 m³ and an amount of abandonment of 132,400 m³. The MR project

uses a commercial spoil site. It is located in the gulley within the Zhengyuan Ecological Park

of Najia Mountain Zhengyuan Company in Nanshan Road Extension of Xining City. The

engineering earthwork balance under the MR project is shown in Table 2.6-1.

Table 2.6-1 Engineering Earthwork Balance under the MR Project

Road Names Length

（km）

Excavation （0,000m2） Fill

（0,000m2）

Abandonment

（0,000m2） Building

Garbage Earthwork Total

Qiyi Rd

Integrated

Qiyi Rd

Delingha

Rd

80

Improvement

Works Bayi Rd

Wuyi Rd

Xiguan Av

Changjiang Rd

Total

2.7 Construction Organization and Scenario

2.7.1 Construction Materials and Supply of Water and Power

（1）Road Building Materials

The project construction raw materials required mainly include gravel, cement, cement concrete,

lime, asphalt mixture, steel, etc., which can be solved within the scope of Xining. Asphalt mix

and commercial concrete are supplied by qualified professional companies in Xining.

（2）Transportation Conditions

During the project construction, the approach of halfway construction and halfway construction

shall be adopted to ensure uninterrupted urban traffic. The works and its intersecting municipal

road network are directly used as transportation roads to meet its engineering construction needs.

（3）Engineering Water Use

Along the urban roads, there has been well-established municipal water supply network, which

can be accessible through coordination with water supply agency to meet water demand under

the MR project. However, in the course of engineering construction, it is important to pay much

attention to water conservation and environmental protection.

（4）Engineering Power Use

Along the urban roads, there has been well-established power supply system. During the

construction period, it is possible to have direct access to peripheral power supply system by

consultation with power supply agency to satisfy constructional power demand.

2.7.2 Layout of Temporary Engineering Settings

The MR project is a reconstruction and expansion project of existing urban roads. The principles

for layout of temporary Engineering settings are as follows:

a. Engineering settings are selected within the area of land occupation of road foundation

as narrowly as possible;

b. Engineering settings are as far as possible away from schools, hospitals and other

sensitive targets.

c. Engineering settings keep away from river course to reduce the impact on its water

quality, and silt and construction wastes are dumped into the river course.

Temporary engineering sites are laid out under the MR project:

（1）Engineering Sites

Since all the urban roads in this MR project are halfway-constructed, with buildings and many

sensitive spots, engineering sites will be placed within the half-way road where the construction

is being done. Four engineering sites will be set along the urban roads during different

81

construction periods. They are located at K0 + 200 of the Xiguan Avenue, K0 + 920 of the

Changjiang Road, K1 + 360 of crossing of the Qiyi Road and the Wuyi Road, K3 + 820 of the

intersection of Qiyi Road and Delingha Road, respectively occupying 0.10hm², totaling

0.40hm². An engineering site is mainly used for engineering machinery parked, materials yard,

temporary office and residential buildings. The land occupation area of the engineering site is

arranged within the red line of the road without additional temporary occupation lands.

Table 2.7-1 Road Construction Sites and Occupation Land Use Types

No. Locations Positions Land Use Type

Land Floor

Area

（hm²）

1# Xiguan Avenue K0+200 On the road Road construction land 0.10

2# Changjiang Road K0+920 On the road Road construction land 0.10

3# Crossing of Qiyi Rd and Wuyi Rd

K1+360 On the road Road construction land 0.10

4# Intersection of Qiyi Rd and Delingha Rd

K3+820 On the road Road construction land 0.10

Total 0.40

Table 2.74-2 Temporary Engineering Contents of Road Construction Sites

No. Engineering

Types Temporary Engineering Contents

1 Structural

Engineering

There are 1 construction material temporary storage area of about 400m ², 1

comprehensive construction site of about 200m ² and 1 construction machinery

parking area of about 300m ²;

2 Auxiliary

Engineering

There is 1 construction living area of about 100m ², with temporary offices and

housing to be constructed;

3 Utility

Engineering

Electricity and water for construction sites will be accessed from nearby

neighborhoods; No temporary refueling facilities provided;

4 Environmental

Engineering

Septic tank, sedimentation tank and grease trap shall be set up one for one. A closed

enclosure shall be built around the construction site except for entrances and exits.

The bulk material storage yard shall be covered with a dust-catching net. The

construction site shall be equipped with water-spraying facilities, which shall

regularly carry out sprinkling work for dust suppression.

（2）Temporary Landfill

According to the project earthwork balance, the earthwork of excavation works mainly involves

foundation treatment, removal of old pavement and basic layers, underground tunnel excavation,

construction of drainage pipes and common utility tunnels, bridge foundation drilling slag and

other earthwork.

All of old pavement, basic road layers, bridge foundation drilling drags shall be timely cleared

up to designated construction landfill sites, with no need to set up a special temporary storage

yard.

Drainage pipelines and common utility tunnels shall be constructed in stages to avoid full

excavation. Earthwork excavated shall be piled on the side of ditch pipe to make sure protective

measures such as temporary covering. After backfilling , excessive earthwork shall be timely

transported to the designated construction landfill site, with no need to set up a special

temporary landfill yard.

82

（3）Construction Access Road

According to field investigation, located in the built-up urban areas, the MR project falls into

the category of reconstruction and expansion project. It takes the form of halfway-construction

and halfway travel, directly using the project and its intersecting municipal road network as

transportation roads to meet the demand of engineering construction, with no need for

additional construction access roads.

2.7.3 Construction Scenario

The physical construction under the MR project adopts a scenario of by-stage-construction, and

halfway-construction and halfway-travel. In the construction process, the major approach

adopted is mainly mechanical excavation.

1. Construction Fencing

Fixed removable shelves shall be adopted. According to the measurement lining, foundation

fencing will be carried out first and then its outer edge be directly provided with 26cm high C

steel foot; each section of skeletons and spray-painting layer are processed in manufacturers

and shipped to construction sites for installation. In the installation process, lighting pipelines,

lamps and dust nozzle shall be provided accordingly.

2. Pipelines Protection

It is necessary to take the following protective measures for these pipelines when encountering

existing underground pipelines during the project construction.

(1) Constructing wall-protecting piles;

(2) Erecting a steel frame on the ditch to be excavated for protection;

(3) Carrying out casing protection for some pipelines during excavation.

2.7.4 Engineering Construction Methods

Engineering construction is carried out in the consecutive order of bridge, pipelines, pavement

and along-road facilities. Pavement engineering is undertaken mostly by mechanical

construction, while pipeline engineering mostly by manual engineering. Highway greenery and

landscape engineering is by the combination of machinery and labor.

Main construction methods and processes are as follows:

(1) Pavement Construction

Pavement surface layer is built by adopting commercial asphalt concrete, hot mix and hot laying

process and basic layer and basement layer by adopting commercial concrete, mechanical

paving construction process.

(2) Drainage Construction

For drainage construction, it is planned to adopt the principle of first establishing new facilities

and then demolish old ones to ensure sound surrounding drainage.

Trench excavation: Basement elevation should be strictly controlled, without exceeding its

digging limit. When adopting mechanical grooving, 10 ~ 20cm undisturbed soil above the

design elevation of basement should be reserved. Before laying out pipelines, the trimming

should be done manually to design elevation. For over-dug or disturbed parts, it is necessary

83

that they be backfilled with grading sand materials or filled with others before leveling and

compacting.

Trench backfill: Manual backfilling is done within 50cm from the basement of pipe bottom to

the pipe top before compaction of small machinery. Both sides of the pipe should be backfilled

by level, with their elevation difference of not more than 20cm. The backfill thickness of each

layer should depend on rammed compaction or compaction equipment. There shall be no using

of mechanical bulldozing backfill. For backfilling at 50cm above the pipe top, it is good to use

machinery to carry out backfill and compaction from both sides of pipe axel.

(3) Bridge Construction

Main procedures for bridge construction are: demolish old bridge → fencing and building

bridge structures (including foundation, lower part, upper part, bridge deck, etc.) → ground

roads, afforestation, traffic signs and marking construction.

Pile foundation and pier construction: for pile foundation construction, there should be

reasonable selection of drilling rig and pile foundation hole technology to reduce the impact on

their surrounding structures. At the same time, before the construction of pile foundation, it is

wise to carefully inspect the pipelines and facilities around piers and abutments, to

communicate with corresponding ownership units, and to take necessary precautionary

measures before proceeding with construction, so as to ensure the safety during construction.

Pier construction shall be carried out following the routine procedures of erecting temporary

scaffolds, lashing steel, vertical molding, grouting.

Steel box girder construction scenario: under the MR project, the bridge across the Nanchuan

River and the upper structures of the overhead bridge over the Bayi Roads shall use steel box

girders. According to different sections, it is helpful to consider vertical and horizontal

prefabricated, crane-loading construction by section. In the production of steel box girders,

consideration needs to be given to the mechanical capacity of transport lifting and loading.

Hoisting should be supplemented by temporary brackets in order to facilitate the integration

between segments.

(4) Greening and Landscaping Construction

Construction Procedures:

1) In order to ensure smooth construction, the process goes in the consecutive order of “civil

engineering, installation and greening”.

2) Construction sequences adopted: construction preparation – site clearing-up - positioning

and lofting - topographic transformation – tree-transferring - Landscaping – Installation -

Greening - landscape lighting.

3) Topographic transformation and tree transplanting shall be interspersed, while lighting

interspersed with foundation and structures.

2.7.5 Scenario of Construction with Ensured Travel and its FB Analysis

Since newly proposed components are designed to rebuild (expand) primary trunk roads (PTR)

and secondary trunk roads (STR0 of the city, and along the urban roads are densely-distributed

sensitive spots such as residents' concentration areas, schools, hospitals and offices of

enterprises and institutions, enough attention should be given to traffic avoidances to

84

pedestrians, with no occupation of travel roads so as to reduce the impact of construction.

The MR project adopts a construction of by-stage construction, halfway construction and

halfway travel. Meanwhile, to ensure traffic safety during the construction period, it is

necessary to take corresponding construction protection measures. For example, warning signs,

reflective cones and other safety protection facilities should be set up on the construction road

sections and adjacent road sections in order to remind passing vehicles and pedestrians that the

traffic signs should be observed. Construction agencies should set vehicle traffic boards and

warning boards to be illuminated at night.

In addition, construction materials and soil muck have to be transported following a unified

schedule, as required by relevant departments and according to designated routes, time and

manner. It is meant to avoid as far as possible those areas requiring high quality of acoustic

environment, like residential concentration areas, schools and hospitals. In the process of

transport, it is important to keep airtight, with no overloading, spilling or transporting to the

appointed sites.

Therefore, the scenario of construction with ensured travel is feasible.

2.8 Public Transport (PT) Component

Public transport component includes: procuring new electric buses as well as bus OBU

passenger flow analysis system.

(1) According to the national energy structure adjustment policy, and as required by the

Notification on Speeding up the Application & Extension of New Vehicles issued by the Ministry

of Finance, it is planned to utilize the World Bank funds to procure 145 pure electric buses.

(2) All of nearly 1648 buses in Xining Municipality shall be installed with infrared passenger

flow monitoring equipment and load monitoring devices to accurately collect real-time

information on passenger transport and on passengers getting on and off the buses, thus

achieving intelligent scheduling of vehicles, optimization bus routes, and improvement of bus

operation efficiency and people satisfaction.

2.9 Intelligent Traffic System (ITS) Component

In response to actual needs of the construction of bus corridors and their surrounding areas, and

combined with actual situations of socioeconomic development and traffic infrastructure

construction in Xining, the contents of intelligent traffic system component under the MR

project shall include:

（1）Video Forensics System for Off-site Traffic Violations

Video forensics system for off-site traffic violations (illegal roadside parking) mainly concerns

taking advantage of intelligent control terminals to do violation detection processing of images

collected by ball video cameras. It is achieved by using independent research and development

hardware and image analysis technology to achieve the automation of illegal parking capture

process. As a result, the system can give full play to such overall functions as illegal parking

detection, automatic control of ball video cameras, panoramic capture of vehicles, license plate

close-up capture, license plate number identification, illegal information output. It consists of

front-end subsystem, network transmission subsystem, back-end management subsystem.

In addition to installed point-positions at bus stops and bus corridors, a total of 55 illegal parking

capture point positions shall be set up at an interval of 500 m along the involved road sections

85

of bus corridors.

（2）Imaging Forensics System for Off-site Traffic Violations

Imaging forensics system for off-site traffic violations consists of 3 important parts such as

front-end subsystem, network transmission subsystem and back-end management subsystem.

It is meant to achieve automatic capture, recording, transmission and processing of retrograde,

line-hitting, travel into guide lane in wrong direction and travel on wrong lane against traffic

rules and other traffic violations. Meanwhile, the system also possesses bayonet features, which

can track down of real-time traffic information of travelling vehicles.

At the crossings of bus corridors, about 40 meters away from intersection, electronic police

devices shall be built for capturing line-hitting, illegal line-changing and other major traffic

violations. There shall be a total of 29 point positions.

（3）Intelligent Monitoring & Recording System of Road Vehicles

Intelligent monitoring & recording system of road vehicles has the major objectives of

collection of characteristic data such as capture vehicle image and recognized plate number,

alarming of distribution & control, and police interception of reporting stations. It can undertake

ongoing automatic recording of illegal super-speeding all around the year.

Along the road sections involving bus corridors, speed-detecting points in right and opposite

directions shall be set up in name of road section respectively, with seamless access to the “Six-

into-one” platform of public security traffic management. There shall be a total of 10 sets of

speed measurement equipment.

（4）High-Point Watch System

High-point watch cameras can carry out macroscopic monitoring of traffic flow 3 km away

along the bus corridors. In addition to original six points, there will an extra five point positions,

which will be built to conduct real-time CCTV visualization of the entire bus corridor.

（5）Hawk’s Eye System

Along the corridor, it is proposed to install hawk’s eye system to achieve 180 degrees no-blind-

spot monitoring of traffic flow at road crossings. There shall be a total of 20 point positions.

（ 6 ） Consulting & Construction on Connection with Intelligent Traffic Management

Monitoring

Various factors need to be taken into account, like the technical implementation plan of

integrated command platform of public security traffic, integrated command platforms and

information collection equipment and subsystems developed by different manufacturers, and

traffic demands of future traffic development in Xining. Based on these factors, it is proposed

to set up a traffic data resource center, which can be connected or accessed according to the

requirements of uniform interface as well as present situation of existing subsystems in Xining.

Users need to confirm whether their existing subsystems can support the access establishment,

data interface change and forwarding mode

Hosted by the World Bank, a third party shall carry out the connection between the two

86

platforms, namely, the Haihu Platform and the Old City Platform.

2.10 MR Project Progress and Investment

The MR project has a planned construction period of 16 months from March, 2018 to June,

2019, with a total investment of RMB 68777.61Yuan.

3 MR Project Analysis

3.1 Compliance Analysis of Industrial Policies and Plans

3.1.1 Compliance Analysis of Industrial Policies

The construction of urban roads under the MR project falls into the category of incentive

projects contained in such documents as the "Catalog for the Guidance of Industrial Structure

Adjustment (Year 2011 Edition)" issued by the National Development and Reform Commission

of the People's Republic of China (No. 9 Order) and "Decision on Relevant Terms and

Conditions in the Catalog for the Guidance of Industrial Structure Adjustment (Year 2011

Edition)" issued by the National Development and Reform Commission of the People's

Republic of China (No. 21[2013]). Specifically, they refer to such projects as "construction of

urban public transport construction, construction of urban Roads and Intelligent Transport

System, construction of common utility tunnels, urban water supply and drainage pipelines

network, and urban rainwater collection and utilization works” in the Categories of “ Article

22: Urban Infrastructure”. They are aligned with national industrial policy requirements.

3.1.2 Coordination Analysis of Urban Plan

3.1.2.1 Coordination Analysis of Xining Municipality Master Urban Plan（2010-2020）

According to the Amendment to Xining Municipality Master Urban Plan (2010-2020), Xining

urban road network structure takes the form of grid plus loop. The road system includes

expressways, primary trunk roads, secondary trunk roads, branch (level 4) (See Figure 2.13-1).

Specifically, the urban road system in Xining consists of 5 east-west primary trunk roads (PTR),

16 north-south primary trunk roads (PTR) and 1 ring road (RR), supplemented by secondary

trunk roads and branch roads. The road network is of the skeleton of "5 horizontal PTRs, 16

vertical STRs and 1 RR". For the Qiyi Road Integrated Improvement Works with a total length

of 5.13 km, its road sections to be improved are the Qiyi Road (from the Changjiang Road to

the Delingha Road), the Delingha Road (from the Qiyi Road to the Bayi Road) and the Bayi

Road (from the Delingha Road to the Huangzhong Road). The Qiyi Road and the Delingha

Road are secondary trunk urban roads, both of which have 6 bi-directional lanes, with a red line

width of 30 m and a designed speed of 40 km/h. The Bayi Road is a primary trunk urban road,

which has 8 bidirectional lanes, with a red line width of 40 m and a designed speed of 60 km/h.

For the Wuyi Road Slow-moving Improvement Works with a total length of 0.64 km, it is a

primary trunk urban road, which has 6 bidirectional lanes, with a red line width of 35 and a

designed speed of 40 km/h. For the Changjiang Road Improvement Works with a total length

of 1.41 km, it is a primary trunk urban road, which has 8 bidirectional lanes, with a planned red

line width of 35m and a designed speed of 50km/h. For the Xiguan Avenue Improvement and

Expansion Works with a total length of 0.42k, it is a primary trunk urban road, which has 8

bidirectional lanes, with a planned red line width of 46 m and a designed speed of 50km/h. The

newly proposed components will extend public corridors eastward to increase their coverage,

thus further connecting the western New City area with the eastern Old City area and linking

with external transport hubs of the city. They also will correspond to green passages, thus

constituting a demonstration green traffic network system. In this way, they will provide fast,

87

comfortable and safe services for the travel of urban residents in Xining Municipality by

implementing a demonstration corridor project.

The MR project is aligned with Xining Municipality Master Urban Plan.

3.1.2.2 Rationality Analysis of Sites Selection

The MR project is a project which involves the improvement of urban roads.

According to scene reconnaissance or site survey, at present, on both sides along the existing

newly proposed urban roads are densely distributed residential compounds (RCs),

administrative offices, schools, hospitals and various commercial facilities. The Qiyi Road

Integrated improvement Works intersects with the Changjiang Road at the outset, then meets

with the Beidajie Avenue, the Wuyi Road, the Huanyuanbei Street, the Gonghe Road, the

Jianguo Avenue and the Delingha Road in consecutively, and intersects with the Huangzhong

Road at the end. The Wuyi Road Slow-moving Improvement Works starts from the Qiyi Road,

then intersects with the Shangbinhe Road along the road, and ends up with the Binghenan Road.

The Changjiang Road Improvement and Expansion Works intersects with the Xiguan Avenue,

then meets with the Shengli Road and the Qianyi Road along the way, ends up with the crossing

of the Binhenan Road. The Xiguan Avenue Improvement and Expansion Works starts from the

Huanghe Road, then goes through the bridge across the Nanchuan River, and ends up with the

Changjiang Road. During the construction of this MR project, it is possible to transport

materials and earthwork by using the urban roads available.

On both sides along the urban roads to be rebuilt under the MR project are commercial service

facilities, residential compounds, administrative offices, schools and hospitals. There are

frequent human activities there. The works construction land covers no nature reserves, scenic

spots, key cultural relics and drinking water source intake, thus having no obvious

environmental constraints along the project areas.

The Xiguan Avenue Improvement and Expansion Works goes across the Nanchuan River. It

does not involve drinking water source protection zone and concentrated drinking water intake

at the river section and within 10km downstream and there is no rare protected fish in the

evaluation section.

Based on the above-mentioned, the MR project is rational in terms of site selection.

3.2 Environmental Impact Analysis

3.2.1 Summary of Environmental Impacts

The MR project is an integrated urban transport improvement project. Its construction will

greatly enhance the traffic management level, fully tap the potential of the existing urban road

network, and effectively improve the current traffic conditions in Xining to achieve the effect

of alleviating traffic and cleaning the environment. The project construction process will have

certain negative impacts on the ecological and social environment in some urban areas. Some

components will generate noise, waste water, waste gas and solid waste after their operation,

but pollutants emission can be controlled and negative impact reduced or eliminated by

adopting environmental protection measures, thus meeting national emission criteria. Therefore,

an analysis will be carried out of various factors regarding the impact of project construction

on the natural and social environment.

Each component has different impacts on the environment as well as different scopes. Therefore,

88

EIA of each component varies in terms of emphasis, depth and width. In order to minimize

negative environmental impacts caused by the project construction and maximize positive

environmental impacts brought by the project, this EIA will carry out an in-depth quantitative

predictive analysis and evaluation of the negative environmental impacts and provide effective

and feasible environmental mitigation measures. Meanwhile it will conduct a quantitative or

qualitative forecast analysis and evaluation of the positive environmental impacts so as to

demonstrate the role of the project construction in improving the environmental quality of

Xining Municipality. The environmental impact identification and screening results of all

components are shown in Table 3.2-1.

89

Table 3.2-1 Environmental Impact Identification and Screening Results of

Xining Urban Transport

Components Environmental Impact Identification and Screening

Positive Impacts Negative Impacts

Urban

Roads

Qiyi Rd Integrated Improvement Works;

Wuyi Rd Slow-moving Improvement Works;

Changjiang Rd Improvement & Expansion Works

Xiguan Av Improvement & Expansion Works;

Addressing the issue of urban traffic

congestion;

Located in the urban built-up

areas, they have lots of

environment sensitive spots

nearby, like residential areas,

schools and hospitals. During the

construction period, waste, air and

noise environments will be

affected to some extent. During the

construction period, the sensitive

spots on both sides of the urban

roads will suffer from big noise

and waste gases.

PT New pure electric buses and their OBU passenger

flow analysis system shall be procured; Saving energy;

ITS

Platform connection study, off-site video forensics

system of traffic violations, imaging forensics

system, intelligent monitoring system of vehicles,

high-point watch system and hawk eye’s system

shall be newly added.

Promoting traffic management and

implementing development and

control strategies.

During the operation period,

playing an important role in

achieving orderly and scientific

urban traffic as well as rational

allocation of road resources, and

greatly benefiting the improvement

of urban environmental quality.

There are small physical work

volume and moderate

environmental disturbance.

During the construction period,

environmental impacts are largely

manifested in traffic interference.

In terms of project contents, the MR project falls into two primary categories: civil

engineering and non-civil engineering. The former includes urban roads component, while the

latter includes public transport component and ITS component. The former will have big

positive and negative impacts on the environment, while the latter will have obvious positive

environmental impacts. Therefore, the EIA attempts to conduct a detailed environmental impact

on the urban roads component in the category of civil engineering, while it does not conduct an

in-depth analysis and evaluation, only with related chapters devoted to necessary discussion.

3.2.2 Environmental Impact Analysis during Construction Period

Impact Characteristics during Construction Period

(1) Construction activities such as road filling and foundation excavation during the

construction period will lead to the destruction of surface vegetation, surface disturbance, soil

bareness and partial landform change;

(2) Construction activities such as bridge foundation construction, material equipment and

earthwork transportation will occupy and destroy urban roads and increase traffic load;

(3) Noise from mechanical equipment such as excavators, broken concrete, heavy-duty loaders

and transport vehicles will affect sensitive spots such as surrounding residential areas and

schools;

(4) Wastewater from physical construction and domestic sewage discharged from the

construction site will affect surrounding areas;

(5) The impact of construction operations on ambient air is mainly dust pollution, mainly due

to earthwork, surface excavation and transportation.

Factors Analysis of Ambient Environmental Impacts

No concrete mixing station and asphalt mixing station are set at construction sites. The concrete

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and asphalt required for the project are all purchased by outsourcing. Therefore, the main air

pollution sources during the construction period are: flying dust generated by excavation at the

construction site, road dust from loading and unloading of construction materials or earthwork,

and transportation, asphalt smoke produced by road paving and exhaust emissions of fuel-

powered construction machinery and transport vehicles.

（1）Flying Dust of Construction

The dust sources of project construction sites mainly include second flying dust brought by

earthwork-carrying vehicles in and out and by soil excavation of excavators. According to

actual survey data of highway engineering, TSP pollution caused by earthwork excavation can

be controlled within the range of 50-200m at construction sites, and beyond this range, the TSP

pollution shall meet Class 2 criteria.

（2）Road Flying Dust

Loose particles of earth and rock excavation as well as sand and gravel yard form the source of

flying dust pollution. In the course of material handling and transport, there appears secondary

flying dust, affecting ambient air quality of the roads and their both sides. According to causes

of dust-generation, the road dust of vehicles can be divided into wind dust and dynamic dust.

Among them, the wind dust is floating dust mainly exposed on the surface of the road due to

dry weather and wind gusts; and the dynamic dust is mainly generated by external forces during

loading and unloading. According to relevant literature, the dust generated by vehicle driving

accounts for more than 60% of the total dust, and the dust can be calculated according to the

following empirical formula under completely dry conditions:

Q=0.123×（V/5）×（W/6.8）×0.85×（P/0.5）×0.75

In the formulation： Q——flying dust from driving, kg/km/per vehicle；

V ——Vehicle driving speed，km/h；

W ——Vehicle carrying capacity，tons；

P —— Road surface dust amount，kg/m²。

Table 3.2-2 Dust Generation while vehicle driving Unit：kg/km

Road surface dust

amount (kg/m²)

Vehicle travelling speed（km/h）

15 20 25 30 40

Table 3.2-2 shows the amount of dust emission at different speeds and with different road

conditions when a 10-ton ordinary truck passes a length of pavement. Thus, under the same

conditions of road surface cleaning, the faster the vehicle speed, the greater the amount of dust;

in the same speed conditions, the more road dust, the greater the amount of dust.

（3）Waste Gases of Asphalt Paving

Since commercial asphalt shall be purchased from outside, the project does not have any asphalt

mixing station. As a result, waste gases mainly come from asphalt pavement and maintenance.

During asphalt, paving, asphalt is volatilized to form smoke at 130 °C. When asphalt is

compacted by a road roller and subjected to 10 to 20 minutes of natural cooling, asphalt mixture

temperature will drop below 82 ℃, asphalt smoke will be significantly reduced. With asphalt

solidification, asphalt smoke will disappear immediately.

（4）Exhaust Gas from Construction Vehicles

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The construction agencies shall strengthen the maintenance and management of construction

machinery and equipment, and waste gases discharged by construction machinery and vehicles

will have slight impact on the surrounding environment and be limited to the construction

period.

Factors Analysis of Water Environmental Impacts

During the construction period, project impacts on the surrounding water environment mainly

include construction wastewater and domestic sewage.

(1) Construction Wastewater

The project construction sites will not be provided with maintenance yards, and all mechanical

maintenances shall take place to professional repairing shops. The construction wastewater is

mainly mechanical and vehicular wastewaters. Such wastewater contains a large amount of silt

and the stuff, with a high concentration of suspended particles, weakly alkaline PH value and a

small amount of dirty oil. According to analogy investigation, the concentration of suspended

particles is generally in the range of 1000-5000mg/l, with petroleum <10 mg/L. After oil

separation and sedimentation , the wastewater can be recycled without being discharged.

(2) Domestic Sewage of Construction Workers

For living sewage of construction workers, like similar scale of construction, during peak hours,

there are about 100 people per day on construction sites. According to 50L water meter and

domestic wastewater discharge coefficient of 0.80 meter per person / per day, the maximum

domestic sewage generated by construction workers shall be 4.0m³/d, with a characteristic

pollutant concentration of COD 300 mg/L and ammonia nitrogen 30 mg/L. The project is

located in the urban areas of Xining Municipality. Its drainage status along the roads belongs to

the Xining No. 1 Sewage Treatment Plant. The project construction sites shall be equipped with

counterpart septic tanks and drainage pipelines, which can be connected with the municipal

sewage pipe network. The construction domestic sewage shall enter the septic tanks and then

be discharged into sewage pipelines the Xining No. 1 Sewage Treatment Plant for treatment.

Factors Analysis of Acoustic Environmental Impacts

Noise impacts on nearby residents during the project construction period are mainly manifested

as traffic noise of construction roads and noise of construction machinery. Noise pollution

sources during the construction period are mainly driven by material transportation vehicles

and construction operation machinery. For noise emission source intensity for various

construction machinery, please see Table 3.2-3, with reference to "Codes for Environmental

Impact Assessment for Highway Construction Projects" (JTG B03-2006).

Table 2-3 Noise Values for Project Construction Machinery Unit：dB(A)

No

. Machinery Types Type No.

Distance between

Measuring Point and

Machinery (m)

Sound Lmax

1 Wheel Loaders ZL40

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No

. Machinery Types Type No.

Distance between

Measuring Point and

Machinery (m)

Sound Lmax

2 Land Levelers PY16A

3 Vibratory Road Rollers YZJ10B

4 2-wheel/2-vibration Rollers CC21

5 Pneumatic Tyred Rollers ZL16

6 Bulldozers T140

7 Rubber-Tyred Hydraulic

Excavators W4-60C

8 Pavers (British) Fifond311

ABGCO

9 Pavers (German) VOGELE

10 Power Generator Sets FKV-75

11 Impacted Well Drillers 22

12 Crushers /

Factors Analysis of Solid Wastes Impacts

During the project construction period, solid wastes mainly iclude abandoned earthwork and

demolished constructional debris and domestic garbage of construction workers.

(1) Abandoned Earthwork and Construction Waste

The MR project has a total amount of wastes of 132,400 m³, all of which are permanently

discarded. They mainly include demolished debris and spoils of original pavements and bridges,

unused and unallocated surplus earthwork after pipeline ditch excavation, and bridge

foundation dross after drilling. According to the Administration Methods of Urban Construction

Garbage in Xining (October 1, 2012), after all the construction units and engineering units have

newly constructed, reconstructed, expanded or demolished all kinds of structures (frameworks),

road pipelines, landscaping, or constructed, decorated and renovated residential households,

constructional garbage like spoils, discarded materials and other wastes arising from those

mentioned above shall be disposed of at points identified. The abandoned earthwork from the

newly proposed works shall be uniformly shipped to the Najiashan Zhengyuan Company

Commercial Slogs Site.

(2) Living Garbage of Construction Workers

During the construction peak hours, there will be about 100 workers on the sites, for living

garbage of construction workers, at the rate of 1.0kg/person·d, the maximum daily garbage

discharge shall be about 0.1t.

Factors Analysis of Ecological Impacts

(1) Ecological Impacts on Land Areas

The project will have certain impacts on the ecology in the process of construction, for example,

destruction of greening belts and vegetation along the roads, construction land occupation and

surface disturbance of surface caused by construction excavation. The main impacts can be

divided into the following parts:

① Construction Land Occupation

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As this project is a reconstruction and extension of urban roads in the Xining City, the main

areas along the urban roads are residential areas, schools, hospitals and shops. According to

statistics, the MR project has a total area of occupied land of 25.48hm², all of which are

permanently acquired. The land occupation is mainly of existing streets and alleys type, so the

project construction will not result in the change of land use structure along the urban roads.

① Soil Erosion

In the course of heaping up and transport, abandoned spoils and slag cause hazards to

surrounding underground pipelines, water systems and roads. Damaged surface soil structure,

if not taken effective measures for prevention and control of soil and water loss, will result in

additional soil erosion in the project areas.

③ Vegetation Damage

The project construction will destroy original vegetation on both sides of existing roads, that is,

largely urban green vegetation, and it can be compensated by road greening in the later stage,

hence generally a relatively small impact on vegetation.

(2) Impacts on Urban Landscape

Major impacts during the project construction involve fragmentation of landscape substratum

and plaque, and significant changes in surface morphology. The exposed and cut-off soil layers

during the roads construction will constitute damaging effects over existing landscape. original

roads are trimmed with piled construction materials, thus construction facilities will conflict

with the existing landscape, weakening the coordinative beauty of original landscape.

3.2.3 Environmental Impact Analysis during the Operation Period

Characteristics of Impacts during the Operation Period

Impacts during the operation period are mainly vehicle noise pollution, surrounding vehicle

exhaust emission, and surrounding landscape transformation as a result of roads and bridges.

Factors Analysis of Acoustic Environment

The main noise source after the operation period is the noise generated by motor vehicles on

the road surface, including engine noise, exhaust noise, body vibration noise, transmission

mechanical noise, brake noise, wheel and road friction noise, of which engine noise is the main

noise source. According to "Codes for Environmental Impact Assessment for Highway

Construction Projects" (JTGB03-2006), the average radiation sound level of various types of

vehicles is calculated according to the following formula.

（1）Vehicle Types

Vehicles can be divided into 3 types, namely, large vehicles (LV), medium vehicles (MV) and

small vehicles (SV). Criteria for vehicle types are seen in Table 3.2-4. Vehicle types are subject

to forecast traffic volume provided by construction agencies.

Table 3.2-4 Criteria for Vehicle Types

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Vehicle Types Overall Quality of Vehicles

Small Vehicles (S) 3.5t or less

Medium Vehicles (M) 3.5t or more～12t

Large Vehicles (L) 12t or more

Notes:

1. Small vehicles: buggies, limousines, estate vehicles (7 seats or less);

2. Medium vehicles: medium trucks, medium buses (7-40 seats), tricycles and motorcycles;

3. Large vehicles: container trucks, trailers, construction vehicles, buses (40 seats or more),

large trucks.

(2）Travelling Radiation Level Loi for Single Vehicle

① The average radiated noise level (dB) of vehicle at the reference point (7.5m) Loi is

calculated as follows:

SV: LoS = 12.6 + 34.73LgVs + △ L pavement

MV: LoM = 8.8 +40.48lgVM + △ L longitudinal slope

LV: LoL = 22.0 +36.32lgVL + △ L longitudinal slope

Where:

Note at bottom right corner that S, M, L stand for small, medium and large vehicles respectively;

Vi stands for average vehicle speed, km/h;

② Source Intensity Correction

For traffic noise source caused by road longitudinal slopes, its intensity correction △L 纵坡 is

calculated by the value in Table 3.2-5.

Table 3.2-5 Noise Correction Value of Road Longitudinal Slope

Longitudinal Slope

β(%) ≤3 4～5 6～7 ＞7

Correction [dB(A)] 0 +1 +3 +5

Notes ：Correction value is only for LVs and MVs instead of SVs.

For traffic noise source caused by road pavement, its intensity correction △L 路面 is calculated

by the value in Table 3.2-6.

Table 3.2-6 Noise Correction Value of Regular Road Pavement

Pavement △L 路面

Asphalt Concrete Pavement 0

Cement Concrete Pavement +1~2

Factors Analysis of Air Environmental Impacts

During the operation period, waste gases mainly come from exhaust gas emitted by vehicles

traveling on the roads, including pollutants like Knox and CO. The emission source intensity is


3

1

13600i

ijij EAQ

95

Where: Qj - Class j gaseous pollutant emission intensity, g/(km • s);

Ai - Hourly traffic volume of forecast year for type I vehicle, vehicles/h;

Eij – Single vehicle emission factor (g/km•vehicle) for type I j pollutants during

predicted year in the situation of special road of vehicle.

For the purpose of implementing the Law on Environmental Protection of the People's Republic

of China and the Law on Prevention and Control of Atmospheric Pollution of People's Republic

of China, in order to prevent and control environmental pollution caused by emission of vehicle

pollutants and to improve ambient air quality, the former State Environmental Protection

Administration and the present Ministry of Environment Protection Promulgated four criteria

of limits of motor vehicle exhaust pollutants:

(1) Limits and Measurement Methods of Light Vehicle Exhaust Pollutant Emission (China

Stage III and IV) (GB18352.3-2005), approved by the former State Environmental

Protection Administration on April 5, 2005 and implemented on July 1, 2007. On May 27,

2013, the MEP approved the Limits and Measurement Methods of Light Vehicle Exhaust

Pollutant Emission (China Stage VI) (GB18352.3-2013), replacing the GB18352.3- 2005

since January 1, 2018;

(2) Limits and Measurement Methods of Exhaust Pollutant Emissions from Engines and

Vehicles with Compressed Combustion (CC) and Gas-fueled Ignited Combustion (IC)

(China Stage III, IV and V) (GB17691-2005), approved by the former State Environmental

Protection Administration, on May 30, 2005 and implemented on January 1, 2007;

(3) Limits and Measurement Methods of Exhaust Pollutant Emissions from Heavy-Duty

Gasoline Engines and Vehicles (China Stage III and IV) (GB14762-2008), Approved by the

former Ministry of Environmental Protection on April 2, 2008 and implemented on July 1,

2009.

According to relevant requirements of the announcement from the former Ministry of

Environmental Protection (No. 49, Year 2011) entitled the Announcement on the

Implementation of National Criteria for Pollutants Emission from Light Gasoline Vehicles,

Dual Fuel Vehicles and Single Gas Fuel Vehicles (China Stage IV), in order to implement the

Law on Prevention and Control of Atmospheric Pollution of the People's Republic of China to

strictly control the emission of motor vehicle pollutants and implement the limits of the Limits

and Measurement Methods of Exhaust Pollutants Emission of Light-duty Vehicle (China Stage

III and IV) (GB18352.3-2005), since July 1, 2011, all light vehicles, dual-purpose fuel vehicles

and single-fuel vehicles manufactured, imported and sold must meet the requirements of the

criteria of China IV.

According to the Limits and Measurement Methods of Exhaust Pollutants Emission of Light-

duty Vehicle (China Stage III and IV) (GB18352.3-2005), emission factors of pollutants

emission limits of light-duty vehicles are shown in Table 3.2-7.

Table 3.2-7 Standardized Emission Limits

Baseline Quality

（RM/kg）

Limits（g/km）

（CO2）（HC）（NOx）（HC+NOx）（PM）

L1 L2 L3 L2+ L3 L4

Stages Vehicle

Categories

Level

s IC CC IC CC IC CC IC CC CC

IV Category I 一 All

Category I RM≤1305

96

II 1305＜

RM≤1760

III 1760＜RM

Notes: 1. Ignited Combustion stands for “IC”, while compressed combustion for “CC”.

The criteria (China Stage IV) shall be implemented for vehicle pollutants in the forecast years

periods under the MR project. single vehicle pollutants emission factors shall use maximum

limits of China IV contained in Table 3-3-9. The single vehicle pollutants emission factors are

shown in Table 3.2-8.

Table 3.2-8 Recommended Single Vehicle Exhaust Pollutants Emission Factors

Unit：g/ km•vehicle

Pollutants

Vehicle Types Pollutants

CO NOx

SV

MV

LV

Notes：Values in the table are obtained from the average between gasoline vehicle and diesel.

Substituting each parameter into the calculation model, we can get the source intensity of annual

exhaust emissions from vehicles, as shown in Table 3.2-9.

Table 3.2-9 Exhaust Pollutants Emission Source Intensity for Vehicles

(Long-term Operation Periods)

Forecast

Years Road Sections Speed

Traffic Flow Source Intensity

(g/km•s） Rush

Hour

Daytime

Average

Hour

Night

Average

Hour

（V/H）（V/H）（V/H） CO NOx NO2

2033

Qiyi Rd



Delingha Rd



Huangzhong Rd)


Xiguan Av Huanghe Rd – Changjiang Rd

Changjiang

Rd


Wusi Av – Qiyi Rd

Qiyi Rd – Binhenan Rd

Notes：NO2 is calculated at 0.9NOX.

97

Factors Analysis of Water Environmental Impacts

The water pollution in the project operation period is mainly caused by road runoff. Pavement

runoff pollutants are mainly suspended solids and petroleum and so on. Domestic and foreign

research shows that the concentration of pollutants in the rainwater on the road surface is related

to many factors such as traffic flow of road surface, types of motor vehicles, intensity of

precipitation, rainfall period, nature of roads and nature of motor vehicle fuel. Due to strong

variability, great randomness and high contingency of influencing factors, it is difficult to obtain

a general and unified measurement method to be adopted.

According to testing data of road surface runoff pollution in relevant domestic units, the

rainwater has a relatively high concentration of suspended particles and oily matter, with an

average of 160 mg/L and 5.8 mg/L within 40 minutes from initial rainfall to formation of runoff.

Afterwards, its concentration decreases rapidly with the prolongation of rainfall duration. After

40 minutes of rainfall, the road surface is made clean basically with the matters being washed

away, that it has a relatively stable pollutants concentration of road surface runoff at a relatively

low level.

For vehicles loaded with toxic and hazardous substances, wastewater generated from road

surface cleaning will cause certain contamination to some extent with waste water entering

underground water body after they have been leaked or spilled due to traffic accidents. This

project is directed towards urban roads, and dangerous goods transportation is not allowed

within the road range. Therefore, there is no risk of polluting water body caused by traffic

accidents arising from vehicles loaded with toxic and hazardous substances in this project.

Factors Analysis of Solid Waste Impacts

Solid wastes mainly include splashed or loads from transportation vehicles, overthrown loads

from vehicles of traffic accidents and discarded garbage littered by passengers. The shall be

collected and transported to urban garbage disposal sites under the urban roads transportation

component.

Waste/old batteries used by electric buses procured by public transport infrastructure

component shall be returned to electric bus manufacturers for disposal.

Factors Analysis of Environment Accident Risks

The MR project is designed for the improvement of urban roads, and the project roads forbid

the passage of hazardous chemicals vehicles. Therefore, environmental risks of the project

mainly come from the traffic accidents that may cause pollution to water bodies. The main types

of water pollution accidents are as follows: After traffic accident, the petro (or diesel) carried

by the vehicles leaks, and pollutes the surrounding surface water, that is, the Nanchuan River

landscape water body through surface runoff.

98

4 Project Area Overview

4.1 Natural Environment

4.1.1 Geographic Position

Xining Municipality is the capital city of Qinghai Province. It borders Ping ‘an County in the

Haidong Municipality and Huzhu Tu Autonomous County in Xining non-urban area to the east.

It is adjacent to Haiyan County in the Haibei Tibetan Autonomous Prefecture and Gonghe

County in the Hainan Tibetan Autonomous Prefecture to the west. It is connected with the

Mengyuan Hui Autonomous County in the Haibei Tibetan Autonomous Prefecture to the north.

It also borders the Guide County in the Hainan Autonomous Prefecture and the Hualong Hui

Autonomous County in the Haidong Municipality to the southwest.

The project involves the Chengdong District, the Chengzhong District and the Chengxi District

in Xining City. The project geographic location map is shown in Figure 1.

4.1.2 Landform and Geomorphology

Xining Municipality is located in the transitional zone from the Loess Plateau to the Qinghai-

Tibet Plateau and belongs to the Qilian Mountain Range. The Huangshui River, a tributary of

the Yellow River, runs through the urban area from west to east. Located in the valley of the

Huangshui River in the eastern part of Qinghai Province, its terrain is inclined from north to

south with the highest elevation of 4394m. It has a shape of boat, surrounded by a number of

mountains, like the Laji Mountain, the Riyue Mountain, the Daban Mountain.

Among the newly proposed urban roads for the MR project construction, the Xiguan Avenue

and the Changjiang Road lie on the Grade II bank terraces of the Nanchuan River, whereas the

Qianyi Road and the Wuyi Road, located on the southern side of the Huangshui River, passes

through Grades I and II terraces of the Huangshui River. Their topography type is of flat land

among catchment areas of the Huangshui River and the Nanchuan River, with overall

geomorphology of high western land and low eastern land, high southern land and low northern

land, open terrain and undulating landform.

4.1.3 Climate and Meteorology

In terms of climate, Xining Municipality is characterized by cold winters and cool summers. It

is a semi-arid continental plateau climate. According to many-year observation data of the

Qinghai Meteorological Observatory, it has an annual mean temperature of 5.7℃ with the

coldest month of January of -7.9 ℃ and the hottest month of July of 17.2 ℃. Over the years,

its extreme minimum temperature is -26.6 ℃ and its extreme maximum temperature 38.7 ℃.

t has an annual mean precipitation of 371.0 mm, with unevenly distributed precipitation

generally concentrated in June-September, accounting for 73% of the total annual precipitation.

The precipitation is characterized by heavy precipitation in July-September and numerous

thunderstorms. Xining has a many-year average of thunderstorms of 29.2 days, with the

maximum annual evaporation of 2095.8mm, the minimum evaporation of 1454.3 mm and an

average evaporation of 1676.8 mm. The dominant wind direction all the year around and the

prevailing wind direction in winter constitute their southeast winds, with an annual average

wind speed of 2.0m/s, a maximum instant wind speed of 15.8m/s, the maximum wind speed of

18m/s in 30 years, and a basic wind pressure of 0.35 KN/m². It has the many-year maximum

snow thickness of 18.0 cm and a basic snow pressure of 0.25 KN/m². There are an annual

average atmospheric pressure of 775.2 mbar and an average sunshine duration of 2748 hours,

with a sunshine percentage of 62.8%; In terms of humidity, Xining city has an average relative

99

humidity of 55%, with the maximum absolute humidity of 20.0HPa, the minimum absolute

humidity of 0.2HPa and an average absolute humidity of 6.0HPa. Additionally, its annual

average frost-free period is 138 days and its thunderstorm daily average is 24.2 days .

4.1.4 Hydrology and Water System

This project mainly involves the Huangshui River and the Nanchuan River.

The Huangshui River is a primary tributary of the Yellow River Basin, which originates in from

the Baotuhu Mountain, runs through the Xining City at Balang Village from west to east, and

exits at Xiaoxia. According to relevant data, the Xining Basin has an annual runoff depth of

100-200mm, with a runoff coefficient of 0.4-0.5 and average annual runoff of 13.1 × 108m³ / a.

There are a number of tributaries on both sides of the mainstream of the Huangshui River, of

which the rivers with flow volume of greater than 1.0m³/s are the Beichuan, the Xina River, the

Shatang River and the Nanchuan River. According to the Xining Flood Control Handbook, the

Huangshui River has the maximum flood flow in the once-in-a-hundred-year period of

1146.0m³/s, the maximum flood flow in the once-in-two-hundred-year period of 1216.57m³/s

and the maximum flood flow in the once-in-a-five-hundred-year period of 1310.58m³ / s .

The Nanchuan River, a tributary of the Huangshui River, originates from the north gate of the

Lajia Mountain ridge and flows into the Huangshui River from the northside of Ximenkuo of

Xining. It is a perennial flowing river with a catchment area of 380km² and a longitudinal river

profile of 13 ‰, a river length of 41km, an annual average flow rate of 0.735m³/s and annual

runoff of 0.3814 × 108m³.

The Xiguan Avenue of this MR project crosses the Nanchuan River through a bridge.

The Xiguan Bridge is located at the downstream of Nanchuan River, with its road center line

being perpendicular to the Nanchuan River. It has a shape of trumpet mouth, with a width of

51m at the estuary and a width of 30m at the bridge. On the two sides of the river are green

parks. The present Nanchuan River at upstream and downstream of the bridge has rubber

dams. Its river channel has been rehabilitated, with an embankment flood fortification criterion

of 1/100 (once-in-a-hundred-year floor fortification).

4.1.5 Earthquake

According to the seismic data of the Qinghai Province Seismological Bureau, Xining

Municipality is divided into 40 potential source zones based on their seismic risk analysis and

earthquake zoning within a radius of 250 km of the city center. Within the urban area of the

Xining city, there is only one "Xining potential seismic source zone". It has a hidden quaternary

small fault, with a high intermedium earthquake intensity and the maximum magnitude of 5.4

on richert scale. Xining Municipality has a designed basic seismic acceleration is 0.10g, with

its earthquake grouping of Group 3. The project site shall adopt a characteristic period of 0.45s.

4.1.6 Geology

Located on the eastern margin of the Xining basin, the project belongs to the fault-depression

basin controlled by the structural belts of the Qilian Mountain Range and the Qinghai Nanshan

Mountain.

According to the geological survey report, the project site stratum consists of the Quaternary

unconsolidated buildup layers in the range of controlled depth of exploratory wells. According

to the genesis era, the layer generation has the sequence (from new to old) of prime fill (Q4ml),

cultivated soil (Q4ml), fine-medium sand (Q4dl+pl), loessial soil (Q42al+pl), loessial soil

(Q41al+pl), loessial soil (Q41al+pl) and loessial soil (Q43al+pl).Their characteristics are

100

described as follows:

①-1 prime fill (Q4ml): It is yellowish brown, yellowish gray, slightly wet, loose - slightly dense.

It is mainly composed of silty soil, including sand and gravel, a small amount of coal ash,

broken bricks and household garbage, about 0.4-2.2m thick.

①-2 cultivated soil (Q4ml): It is mainly silty soil, rich in plant roots and a small amount of plant

humus, with a layer thickness of 0.3-0.6m.

① fine-medium sand (Q4dl+pl): It is brick red, maroon, brown yellow, slightly wet - wet,

slightly dense - dense, with thin slope sediment - medium sand. The exploration revealed that

each hole are with medium-thick silty sand, but it does not constitute an inter-layer. Its

intercalated silt has high water content, some of which have reached saturation and others of

which contains a small amount of coarse sand, gravel sand, round gravel and silty clay. Due to

slope flood accumulation, its lithology as a whole is messy, with a buried depth of 0.4-6.0m, an

exposed thickness of 4.6-12.0m, but not exposed fully.

③ loessial soil (Q42al+pl): It is yellow, brown, brown, slightly wet-wet. It is loess-like silt-

based, slightly dense, with wormhole, pore development, intermediate remote reaction, matte

reaction, dry strength and low toughness. According to its collapsibility, it can be divided into

③-1 collapsible loess, ③ -2 non-collapsible loessial soil.

③-1 collapsible loess: it is yellowish yellow - earthy yellow, slightly wetter, slightly dense,

with pores, with a depth of about 1.5m and a distribution thickness of about 2.7m;

③-2 Non-collapsible loess: It is yellowish brown, reddish brown, yellowish-gray, slightly wet-

wet. Some have a 5-10cm thick gray-yellow and yellowish silt sandwich with a depth of about

3.0m.

① loessial soil (Q41al+pl): It is yellow, brown, brown, slightly wet - wet. It is loess-like silt-

based, slightly dense - dense, with wormhole, general pore developmental, intermediate remote

reaction, dull reaction, dry strength and low toughness.

①-1 collapsible loess: It is yellowish brown - yellowish brown, slightly wetter, slightly dense,

with pores, with a depth of 0.3-1.5m and a distribution thickness of 0.7-5.0m.

①-2 non-collapsible loess: yellowish, maroon, gray yellow, slightly wet - wet, with a buried

depth of 1.5-8.0m.

① round gravel (Q41al + pl): It is gray, gray, slightly wet and slightly dense. Its pebbles have

occasionally a particle size of greater than 2mm, with a content of about 51.0-60.5%. The rest

is coarse sand, with a composition of mainly quartzite, granite and a small amount of light-

colored metamorphic rock, medium roundness, mostly sub-round and angular, poor sorting.

Only part of it are exposed to the layer, with a buried depth of 1.6-9.2m and an exposed

thickness of 0.2-2.3m, not exposed fully.

① loessial soil (Q41al + pl): It is yellowish brown, grayish-yellow, slightly wet-wet, mainly

loess-like silt, slightly dense - dense, with wormhole, less developed pores, moderate remote

reaction, no luster reaction, dry strength and low toughness. Part of it carries with medium and

thick fine sand, with a buried depth of 0.4-0.6m, and a thickness of 5.5-14.8m, not fully exposed.

①-1 collapsible loess: Taupe, khaki, slightly wet, slightly dense, developed porosity, with a

101

depth of 0.4-0.9 m and a distribution thickness of 2.0-4.0 m.

⑥-2 non-collapsible loess: yellowish, yellowish-gray, slightly wet-wet, with a depth of 1.0-

4.5m and a distribution thickness of 5.0-9.5, but the layer is not exposed.

4.1.7 Present Situations of Land Utilization Status and Ecological Environment

This project is an improvement or expansion of existing urban roads with a permanent land

occupation of 25.48hm². Its land occupation type is mainly land of existing roads.

The project sites fall into the category of urban built-up areas. The areas are full of human

activities and populated with high-rise buildings, shops and residential buildings row upon row.

It is an artificial ecosystem based on urban structure. There are no native vegetation and large-

scale wildlife in the scope of the project sites. There are species that are preserved and

developed under the control of humankind for the sake of human needs and of relatively simple

biodiversity.

Due to relative stability and functional integrity of ecosystems within the range of EIA, the

system can be stably maintained and developed as a result of effective manual management and

energy supply, with a certain capability of anti-disturbance.

According to the field investigation, existing vegetation with the EIA scope is mainly urban

greening vegetation. Its major tree types are greenway shrubs, greenery shrubs and roadside

greenbelt plants, with monotonous species and no distribution of rare species of animals and

plants that need to be protected.

4.2 Environment Status Survey and Evaluation

4.2.1 Status and Evaluation of Ambient Air Quality

4.2.1.1 Routine Survey of Ambient Air

In order to understand the routine ambient air quality of the project sites, this EIA collects the

monitoring data of PM2.5、PM10、SO2、CO、NO2 regarding the atmospheric quality status at

the Xining Municipal Environmental Monitoring Station from July 24 to 31, 2017, which was

published by the website of the Xining Municipal Environmental Protection Bureau. The station

is about 3.1km away from the project sites. The results of monitoring ambient air are seen in

Table 4.2-1

Results of Monitoring Ambient Air

by Xining Environment Monitoring Station

Table 4.2-1

Monitoring Dates

Mean Concentration for 24 Hours μg/m³

PM2.5（μg/m³） PM10（μg/m³） SO2

（μg/m³）

CO

（mg/m³） NO2（μg/m³）

7.24

7.25

7.26

7.27

7.28

7.29

7.30

102

7.31

Standard Value

Concentration Range

Maximum Standard Rate

Over-standard Rate

It can be seen from the table above that the average concentration of PM2.5、PM10、SO2、CO、NO2 in the project areas meets Grade II criteria of Ambient Air Quality Criteria (GB3095-2012),

indicating that the air quality in the project area is in good condition .

4.2.1.2 Status Survey of Ambient Air

（1）Identification of Monitoring Point-Positions

According to geographical location and representativeness of the MR project, this EIA regards

the Qinghai Daily Residential Compound as the evaluation point showing the status of ambient

air quality. The location of monitoring points is shown in Table 4.2-2.

Table 4.2-2 Monitoring Points and Positions of

Ambient Air in the Project Area

No. Point-position Names Representation or Meaning

1# Residential Compound of the Qinghai

Daily Atmosphere Monitoring Points

（2）Monitoring Time, Frequency, Items and Analysis Methods

a. The monitoring time is from July 22 to July 28, 2017 for 7 consecutive days.

b. Monitoring items and analysis methods.

Project monitoring has four items like NO2、CO、TSP、PM10. The concentration of pollutants

in the air is determined according to the methods specified in the national criteria. The names

of monitoring methods and their national criterion numbers are shown in Table 4.2-3.

Table 4.2-3 Analysis Methods of Monitoring Air Pollutants

Sample

Type

Testing

Items

Names and Numbers of Testing Criterion (Methods) (including

Year number) Testing Limits of Methods

Ambient

Air

Nitrogen

Dioxide

Ambient air - Determination of nitrogen oxides

(nitric oxide and nitrogen dioxide) –

Naphthalene hydrochloride diamine spectrophotometric method HJ

479-2009

Hour average：0.005mg/m³

daytime average：0.003mg/m³

PM10 Ambient air - Determination of PM10 and PM2.5

Gravimetric method HJ 618-2011 0.010mg/m³

TSP Ambient air - Determination of total suspended particulates

Gravimetric method GB/T 15432-1995 0.001mg/m³

CO Non-dispersive infrared method GB9801-1988 0.30mg/m³

4.2.1.3 Ambient Air Evaluation

（1）Evaluation Items

103

Items of NO2、CO、TSP、PM10 shall be chosen as evaluation factors of ambient air.

（2）Evaluation Methods

It is necessary to evaluate the present Situation of ambient air quality in the project sites by

using over-standard ratio and standard index method.

Over-standard ratio

Single index formula of environmental quality evaluation:

Pi=Ci/Si

Where: Pi- Air quality index of category I type pollutants

Ci- Status Monitoring Concentration of category I Contaminants (mg/m³)

Si- environmental quality evaluation criterion of category I pollutants (mg / m³), that is,

GB3095-2012 Level II concentration limit.

（3）Monitoring Results and Status Assessment

The evaluation criteria shall be implemented according to Level II criteria in the Ambient Air

Quality Criteria (GB3095-2012). The Status of Ambient Air Quality in the project Areas are

shown in Table 4.2-4.

Table 4.2-4 Status of Ambient Air Quality in the Project Areas

Point-

Position

Env.

Factors

Monitoring

Values

Monitoring

Results

（mg/m³）

Level 2

Evaluation

Criteria

（mg/m³）

Maximum

Concentration of

Standard Quality

Concentration

Over

standard

Rates

Up to

Standard

1#

NO2

Daytime

Average Up

Hour

Average Up

CO Average Up

PM10 Daytime

Average Up

TSP Daytime

Average Up

It can be seen from Table 4.3-4 that all the factors of the monitoring point-positions meet the

Level II Criteria of the Ambient Air Quality Criteria (GB3095-2012). The ambient air quality

in the project area is good.

4.2.2 Status and Evaluation of Surface Water Environment Quality

4.2.2.1 Monitoring of Surface Water Environment Status

（1）Identification of Monitoring Sections

The related water body in the project areas involves the Nanchuan River. According to the

distribution of water bodies along the urban roads, the EIA sets up a water quality monitoring

section across the Nanchuan River (landscape water body) along the line, as shown in Table

4.2-5 and Figure 3.

Table 4.2-5 Monitoring Sections of Water Environment Quality

No. Monitoring Sections Point-Positions Remarks

% 100

Total testing Items

Numbers

104

1# Nanchuan River（Landscape

Waterbody） At Crossing Point of Bridge /

（2）Monitoring Items

Monitoring items include 7 items such as pH, SS, BOD5, COD, ammonia nitrogen, permanganate

index and petroleum.

（3）Monitoring Time, Frequency and Analysis Methods

① The monitoring time was July 18 to July 20, 2017. The first phase took place in three

consecutive days, with measurement at an interval of one day for two times in total.

① Analytical Methods

According to the Surface Water Environmental Quality Criteria (GB3838-2002), the water

quality status analysis shall be conducted in accordance with relevant methods stipulated in the

Analysis Methods of Monitoring Water and Wastewater (Fourth Edition) prepared by the State

Environmental Protection Administration, as shown in Table 4.2-6.

105

Table 4.2-6 Items and Analysis Methods of Monitoring Water Quality

No. Major Items Analysis Methods Testing down limit

mg/L

1 pH glass electrode method

2 Suspended particles Weight method

3 petroleum infrared spectrophotometry

4 Chemical oxygen demand dichromate method

5 ammonia nitrogen Nats reagent spectrophotometry

6 Dissolved oxygen Iodometry

7 Permanganate Index Acid methods

8 petroleum Infrared spectrophotometry

Notes：Except for pH，the remaining units are mg/L。

The results of monitoring water environment status is shown in Table 4.2-7.

Table 4.2-7 Results of Monitoring Water Environment Status

Testing Point-

positions

Monitoring Results（Units：mg/L，pH dimensionless）

pH COD BOD5 Ammonia

Nitrogen

Suspended

Particles CODMn Petroleum

Nanchuan

River

4.2.2.2 Evaluation of Water Quality Status

（1）Evaluation Methods

Single factor method shall be used to evaluate the status quo of surface water quality of the

river in the project area.

Si，j=Ci，j/Csi

Where:

Si, j - standard index of water quality parameter i at point j;

Ci, j - status monitoring result of water quality parameter i at the j point;

Csi - standard value of surface water environmental quality for water quality parameter i.

The standard index of pH is calculated as:

(pHj≤7.0)

(pHj＞7.0)

Where：pHj ——status monitoring result of pH at j point；

pHsd——down limit of pH in surface water environmental quality standard；

pHsu——up limit of pH in surface water environmental quality standard.

sd

j

jpHpH

pHS

0.7

0.7,

0.7

0.7,

su

j

jpHpH

pHS

106

（2）Evaluation Results

The evaluation results of monitoring quality status of water environments are shown in Table

4.2-8.

Table 4.2-8 Evaluation Results of Monitoring Quality Status of Water Environments

Point Numbers pH COD BOD5 Ammonia Suspended

Particles CODMn Petroleum

Nanchuan

River

Monitoring Value Ci

Water Quality Criterion Cs

Evaluation Index Ii

About Up to Standard Up Up Up Up Up Up Up

It can be seen from Table 4.3-8 that all the monitoring factors of the Nanchuan River can meet

Level IV water quality standards of Surface Water Environmental Quality Criteria (GB3838-

2002).

4.2.3 Status and Evaluation of Acoustic Environment Quality

4.2.3.1 Monitoring of Acoustic Environment Status

（1）Setup of Monitoring Points

According to the distribution of environmental targets within the evaluation scope and the status

quo of regional environment, the evaluation agency commissioned the Qinghai Huanneng

Testing Technology Company. Ltd. to monitor the present situation of the acoustic environment

quality of the sensitive targets of environmental noise along the urban roads. The locations of

noise monitoring points are shown in Table 4.2-9 and Figure 3.

Table 4.2-9 Noise Monitoring Points and Locations

No

. Point-position Monitoring Points Remarks

Major

sources Reprehensive Points

1 Jiaojingdu RC

Floors 2, 4, 7 of

near-Changjiang-Rd

row-1 building

Shops (Floor 1) Traffic

Noise

Local Taxation Bureau and its

RC, No.27 Changjiang Rd

2 Jingfenyuan RC

Floor 1 of near-

Changjiang-Rd

roadside building

Skewed to Changjiang Rd,

with Local Taxation Bureau

and its RC in the middle

Traffic /

living

noises

Jianhuang RC, Lirangjie RC,

Sheng Jianchayuan RC and

Ruhuayuan RC

3 Qinghai Ribao RC

Floors 3,6 of

near-Changjiang-Rd

row-1 building Shops (Floors 1-2) of near-

road row-1 building

Traffic

Noise Hydrology Station and its RC

Floor 1 of back-row

buildings

Living

noise

4 Qingmian RC

Floors 3, 5 of

near-Qiyi-Rd roadside

row-1 building Shops (Floors 1-2) of row-1

building

Traffic

noise

Floor 1 of back-row

building

Living

noise

5 Zhenghe RC

Floors 1, 3, 7 of


row-1 building；

Right or skewed to Qiyi

Road, with Wuzi Gongxiao

Gongsi RC in the middle

Traffic /

living

noises

No. 2 Bai Yujing Alley,

Hengtong RC, Ruiheyuan RC

and Xinming RC

6

Qinghai Public

Health Vocational

Technology College

Floors 1,3,6 of teaching

building

Living

noise

107

No


Major


7 Zhongyiyuan RC

Floors 2, 4, 6 of

near-Qiyi-Rd row-1

building Shops (Floor 1) of near-Qiyi

-Rd row-1 building

Traffic

Noise

Qifangting RC, Wumao

zhengxing RC, Xinhua

Shudian RC, Wuzi Gongxiao

Gongsi RC, Qinghai

Provincial TCM Hospital,

Qinghai Xining Armed Police

Reserve District

Floor 1 of back-row

building

Living

noise

8

Economic & Trade

Building（Xining

Municipal

Economic and

Information

Commission）

Floors 3, 7, 10, 20, 30

of

near-Qiyi-Rd row-1

building

Shops (Floors 1-2) of

building

Traffic

Noise Hengji Center

9

Xining

No. 1 Middle

School

Floors 1, 3, 7 of near-

Qiyi-Rd roadside

Teachers Building

Traffic

Noise

10 Junqu Caozi RC

Floors 2, 4, 6 of

near-Qiyi-Rd row-1

building

Shops (Floor 1) of near-road

row-1 building

Traffic

Noise

Yushu Xining Representative

Office Taxation Bureau,

No.369 Qiyi Rd, Longhang

RC, No. 357 Qiyi Rd, Sheng

Junqu Zhaodaisuo RC,

Zhonghang RC, Qiyi RC,

Meijia Huanyuan RC,

Shuicheng Huating RC

(including Chengdong District

Dongguan Community Public

Service Center)

Floor 1 of back-row

building

Living

noise

11 Jingniu RC

Floors 1, 3, 7 of


building

Right or skewed to Qiyi

Road, with Xining Rural

Commerce Bank office

building in the middle

Traffic

Noise Wuxiandian Yichang RC

12 Erjian RC Floor 1 near-Qiyi-Rd

roadside building

Skewed to Qiyi Road, with

Administrative Service

Center of Chengdong District

Government in the middle

Traffic /

living

noises

Guangji RC

13

Qinghai Corps

Hospital of Armed

Police Forces

Floors 1, 3, 7, 14 of

Inpatient Department

Building

Living

noise Xining Qiyi Middle School

14 Dongfang RC

Floors 6, 10, 20, 28 of

near-Qiyi-Rd row-1

building Shops (Floors 1-5) of near-

Qiyi-road row-1 building

Traffic

Noise

Shenyuan RC, Dianli RC,

Qinghai EP Sciences Institute

and its RC, Xuefen Building,

Longhua Yating RC, Xiaoquan

Yating RC Floor 1 of back-row

building

Living

noise

15 Xiaoquan

Primary School

Floors 1, 3 of teaching

building

Living

noise

16 Dongyuan RC

Floor 1 of near-Qiyi-Rd

roadside household

building

Back to Qiyi Road, with

Muslim Hotel and Dongjian

Group

Living

noise

Tielu Anye RC, Sheng

Bowuyuan RC

17 Zhoujiaquan

Xiandai Mall

Floors 3, 7, 15, 20 of

near-Qiyi-Rd row-1

building Shops (Floors 1-2) of near-

Qiyi-road row-1 building

Traffic

Noise Qinghai Tutechang Gongsi

RC, Huade Xingyuan RC,

Qingying Lingxiucheng RC,

Huaningyuan RC and Baili RC Floor 1 of back-row

building

Living

noise

18 Yicui Huayuan RC

Floors 3, 8, 16, 25 of

near-Qiyi-Rd

intersecting-with-

Delingha-Rd row-1

Shops (Floors 1-2) of near-

road row-1 building

Traffic

noise Baixia Alley

108

No


Major


No.1 building

Floor 1 of back-row

building

Living

noise

19 Jinfen Binheyuan

RC

Floors 6, 10, 20, 29 of

near-Delingha-Rd row-

1 building

Traffic

Noise No.4 Dazhong Street, Henang

Banshichu RC, No.92 Bayi Rd Floor 1 of back-row

building

Living

noise

20 Wentai RC

Floors 2,4,7 of near-

Delingha-Rd row-1

NO.6 Building

Shops (Floor 1) of row-1

building near Bayi Rd and

Fangzhi Rd

Traffic

Noise

Jingsong Shenshi Tiancheng

RC, Food & Drugs

Supervision Administration,

Gongshangju RC,

Chengshanyuan RC,

Kangyuan RC, Longfu RC,

Bayilu Minghang RC, Youdi

RC, Jiedusuo RC, Xinhua

Xiechang RC, Xining Dier

Fuzhangchang RC, Qinghai

Provincical Forestry Bureau

and its Bayi Rd Household

Building, Baiyuan Yishe RC

Floor 1 of back-row

building

Living

noise

21

Qinghai Province

Maternal &

Children Healthcare

Hospital

Floors 1, 5, 10 Traffic

Noise

Dongrong Building, Bayixi Rd

No.43 RC

22 Meitan Wuce RC

Floors 3, 6 of near-Bayi

Rd row-1 building Shops (Floors 1-2) of near-

Biyi-road row-1 building

Traffic

Noise Ganxiusuo RC, Qinghai

Meitan Dizhi Kanchedui RC,

Lianyong RC Floor 1 of back-row

building

Living

noise

23 Shengrenda RC

Floor 1 of near-Wuyi

Rd roadside No.1

building

Skewed to Wuyi Rd, with

China Postal Saving Office

Living

noise

Qinghai Provincical People’s

Congress, Qinghai Province

Institute of Social Sciences

and its RC

24 Taiheyuan RC

Floors 3, 7, 13 of near-

road row 1 building Shops (Floors 1-2) of near-

road row-1 building

Traffic

Noise Jingji Haoting RC, Mingcuiliu

RC and Wuyi Jiayuan RC Floor 1 of back-row

building

Living

noise

（2）Monitoring Items

Monitoring items are Leq, L10, L50, L90. Measurement & evaluation amount shall be

continuous equivalent sound level A.

(3) Monitoring Frequency

Monitoring will take place in the period from July 18 - July 26 for 2 consecutive days at each

monitoring point, once for once at each day and each night (daytime 6: 00 ~ 22: 00, night 22:

00 ~ 6:00 the next day) .

4.2.3.2 Evaluation of Status of Acoustic Environment Quality

（1）Evaluation of Status of Acoustic Environment Quality

The status monitoring results of environmental noise and traffic volume in this acoustic EIA are

shown in Table 4.3-10. The status monitoring results indicate that the sound level scope of

109

sensitive points along the urban roads is in the range of 42.4 to 66.1 dB (A) during the day and

40.4 to 59.9 dB (A) at night.

Daytime noise: In addition to exceeding 1.1-1.5 dB (A) in the Dongyuan RC and the Qinghai

MCH hospital occasionally exceeding the standard (exceeding 0.5 dB in the first floor), the

noise at other sensitive points can meet their corresponding standard requirements of "Acoustic

Environmental Quality Criteria" (GB3096-2008).

Night noise: The sensitive points along the urban roads at night over standard are as follows:

Jiaojindui RC (over-standard 0.7 to 4.9dB at night), Qinghai Ribao RC (over-standard 0.1 to

2.2 dB at night), Qingmian RC (over-standard 0.1 to 5.3 dB at night), Zhenghe RC (over-

standard 0.9 ~ 2.2dB), part of Zhengyiyuan RC (over-standard 1.1 ~ 4.5dB at night), Floor 7

near road of Jinwei Building (occasionally over-standard 2.0 dB at night), Floor 6 near road of

Shen Junqu Caoji RC (occasionally over-standard 1.4 dB at night), Floor 7 near road of Jinniu

RC (Occasionally over-standard 0.4 dB at night), Erjian RC (over-standard 1.9-2.6 dB at night),

Floor 1 of the Qinghai Corps Hospital of the Armed Police Force ( over-standard 2.1 dB at

night). Dongyuan RC (occasionally over-standard 0.8 dB at night), Qinghai MCH Hospital

(occasionally over-standard 5.7 dB (A)), near-road row-1 building of Shen Meitan Wuce RC

(occasionally over-standard 0.8 dB at night), Sheng Renda RC (occasionally over-standard 1.6

dB at night) and back-row building of Taiheyuan RC (occasionally over-standard 2.1 dB at

night).

Over-standard noise pollution of some sensitive points in terms of sound environmental quality

is largely affected by urban traffic noise and social life noise.

（2）Improvement (Expansion) Measures

① Driveway pavements of current urban roads are seriously damaged, thus vehicles in the

process of driving cause relatively large noise due to poor road conditions. Pavement surface

of all urban roads under the MR project shall be reconstructed or improved into asphalt

pavement that can effectively reduce impacts of road traffic noise.

② In addition to improving road facilities, the Qiyi Road Integrated Improvement Works will

continue to extend dedicated bus lanes eastward, via the Delingha Road and the Bayi Road to

the Bayi Road Bus Terminal, thus forming a convenient passage to the Bayi Road Bus Terminal.

Due to sound road traffic, traffic noise generated by buses will also be lower than that of those

under idle-travelling conditions.

③ The ITS component construction under the MR project can realize orderly and scientific

road traffic and coordinate traffic situations so that the urban roads are in a good state of

operation and can help to reduce traffic noise.

① In addition, to further improve acoustic environment quality in the project areas, this EIA

suggests adopting SMA low noise pavement for all urban roads to be rebuilt.

110

Table 4.2-10 Results of Monitoring Environmental Noise Status

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

1

1#

Jiaojindui

RC

Floor 2

near-

Changjian

g Rd Row-

1 building

4a July 18

As it is close

to

Changjiang

Rd, night

noise over-

standard

results from

impacts of

traffic noise

on the

Changjiang

Rd.

4a July 19

Floor 4

near-

Changjian

g Rd Row-

1 building

4a July 18

4a July 19

Floor 7

near-

Changjian

g Rd Row-

1 building

4a July 18

4a July 19

2

2#

Jingfengyua

n RC

Floor 1 of

near-

Changjian

g Rd

roadside

Building

2 July 18

2 July 19

3 3# Qinghai

Ribao RC

Floor 3

near-

Changjian

g Rd Row-

1 building

4a July 18 As it is close

to

Changjiang

Rd, night

noise over-

standard

results from

traffic noise

on the

Changjiang

Rd.

4a July 19

Floor 6

near-

Changjian

g Rd Row-

1 building

4a July 18

4a July 19

Floor 1 of

back-row

building

1 July 18

1 July 19

4

4#

Qingmian

RC

Floor 3 of

near-Qiyi-

Rd row-1

building

4a July 18 Over-

standard at

night of

front-row

building

mainly

results from

traffic noise

on the Qiyi

Rd, while

back-row

building is

with

parking

space. Thus

4a July 19

Floor 5 of

near-Qiyi-

Rd row-1

building

4a July 18

4a July 19

Floor 1 of

back-row

building

2 July 18

2 July 19

111

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

the latter is

driven by

traffic noise

/ parking

noise.

5

5#

Zhenghe

RC

Floor 1 of

near-Qiyi-

Rd row-1

building

2 July 20

Owing to

traffic noise

and social

noise on the

Qiyi Rd.

2 July 21

Floor 3 of

near-Qiyi-

Rd row-1

building

2 July 20

2 July 21

Floor 7 of

near-Qiyi-

Rd row-1

building

2 July 20

2 July 21

6

6#

Qinghai

Public

Health

Vocational

Technology

College

Floor 1 of

teaching

building

2 July 20

2 July 21

Floor 3 of

teaching

building

2 July 20

2 July 21

Floor 6 of

teaching

building

2 July 20

2 July 21

7

7#

Zhongyiyua

n RC

Floor 2 of

near-Qiyi-

Rd row-1

building

4a July 20

Owing to

traffic noise

on the Qiyi

Rd.

4a July 21

Floor 4 of

near-Qiyi-

Rd row-1

building

4a July 20

4a July 21

Floor 6 of

near-Qiyi-

Rd row-1

building

4a July 20

4a July 21

Floor 1 of

back-row

building

1 July 20

1 July 21

8

8#

Economic

& Trade

Building

(Xining

Municipal

Economic

&

Information

Commissio

n)

Floor 3 of

near-Qiyi-

Rd row-1

building

4a July 20 Owing to

traffic noise

on the Qiyi

Rd (some

floors with

noise over-

standard

occasionally

).

4a July 21

Floor 7 of

near-Qiyi-

Rd row-1

building

4a July 20

4a July 21

Floor 10

of near-

Qiyi-Rd

4a July 20

4a July 21

112

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

row-1

building

Floor 20

of near-

Qiyi-Rd

row-1

building

4a July 20

4a July 21

Floor 30

of near-

Qiyi-Rd

row-1

building

4a July 20

4a July 21

9

9#

Xining No.

1 Middle

School

Floor 1 of

near-Qiy-

Rd

roadside

Teachers

Building

2 July 22

2 July 23

Floor 3 of

near-Qiy-

Rd

roadside

Teachers

Building

2 July 22

2 July 23

Floor 7 of

near-Qiy-

Rd

roadside

Teachers

Building

2 July 22

2 July 23

10

10#

Sheng

Junqu Caozi

RC

Floor 2 of

near-Qiyi-

Rd row-1

building

4a July 22

Category 4a

Zones over-

standard

(occasionall

y at night)

mainly

results from

traffic noise

on the Qiyi

Rd.

4a July 23

Floor 4 of

near-Qiyi-

Rd row-1

building

4a July 22

4a July 23

Floor 6 of

near-Qiyi-

Rd row-1

building

4a July 22

4a July 23

Floor 1 of

back-row

building

2 July 22

2 July 23

11 11#

Jingniu RC

Floor 1 of

near-Qiy-

Rd

roadside

Building

2 July 22 over-

standard

(occasionall

y at night) mainly

results from

2 July 23

2 July 22

113

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

Floor 3 of

near-Qiy-

Rd

roadside

Building

2 July 23

traffic noise

and social

noise on the

Qiyi Rd

Floor 7 of

near-Qiy-

Rd

roadside

Building

2 July 22

2 July 23

12 12#

Erjian RC

Floor 1 of

near-Qiy-

Rd

roadside

Building

1 July 22 Over-

standard

(occasionall

y at night)

mainly

results from

traffic noise

and social

noise on the

Qiyi Rd.

1 July 23

13

13#

Qinghai

Corps

Hospital of

Armed

Police

Forces

Floor 1 of

In-patient

Departme

nt

Building

2 July 21

Over-

standard

(occasionall

y at night)

mainly

results from

parking

noise before

the Inpatient

Department

Building

2 July 22

Floor 4 of

In-patient

Departme

nt

Building

2 July 21

2 July 22

Floor 7 of

In-patient

Departme

nt

Building

2 July 21

2 July 22

Floor 14

of In-

patient

Departme

nt

Building

2 July 21

2 July 22

14

14#

Dongfang

Jiayuan RC

Floor 6 of

near-Qiyi-

Rd row-1

building

4a July 21

4a July 22

Floor 10

of near-

Qiyi-Rd

row-1 building

4a July 21

4a July 22

4a July 21

114

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

Floor 20

of near-

Qiyi-Rd

row-1

building

4a July 22

Floor 28

of near-

Qiyi-Rd

row-1

building

4a July 21

4a July 22

Floor 1 of

back-row

building

2 July 21

2 July 22

15

15#

Xiaoquan

Primary

School

Floor 1 of

teaching

building

2 July 22

2 July 23

Floor 3 of

teaching

building

2 July 22

2 July 23

16

16#

Dongyuan

RC

Floor 1 of

near-Qiy-

Rd

roadside

Building

1 July 22 Over-

standard

(occasionall

y at night)

mainly

results from

social living

noise.

1 July 23

17

17#

Zhoujiaqua

n Modern

City Mall

Floor 3 of

near-Qiyi-

Rd row-1

building

4a July 22

4a July 23

Floor 7 of

near-Qiyi-

Rd row-1

building

4a July 22

4a July 23

Floor 15

of near-

Qiyi-Rd

row-1

building

4a July 22

4a July 23

Floor 20

of near-

Qiyi-Rd

row-1

building

4a July 22

4a July 23

Floor 1 of

back-row

building

2 July 22

2 July 23

18

18#

Yicui

Huayuan

RC

Floor 3 of

No.1

Building

(Row-1)

4a July 23

4a July 24

115

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

near the

intersectio

n of Qiyi

Rd and

Delingha

Rd

Floor 8 of

No.1

Building

(Row-1)

near the

intersectio

n of Qiyi

Rd and

Delingha

Rd

4a July 23

4a July 24

Floor 16

of No.1

Building

(Row-1)

near the

intersectio

n of Qiyi

Rd and

Delingha

Rd

4a July 23

4a July 24

Floor 25

of No.1

Building

(Row-1)

near the

intersectio

n of Qiyi

Rd and

Delingha

Rd

4a July 23

4a July 24

Floor 1 of

back-row

building

2 July 23

2 July 24

19

19#

Jinfen

Binheyuan

RC

Floor 6 of

near-

Delingha

Rd row-1

roadside

building

4a July 22

4a July 23

Floor 10

of near-

Delingha

Rd row-1

roadside

building

4a July 22

4a July 23

4a July 22

116

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

Floor 20

of near-

Delingha

Rd row-1

roadside

building

4a July 23

Floor 29

of near-

Delingha

Rd row-1

roadside

building

4a July 22

4a July 23

Floor 1 of

back-row

building

2 July 22

2 July 23

20 21#

Wutai RC

Floor 2 of

near-Bayi-

Rd row-1

No.6

building

4a July 24

4a July 25

Floor 4 of

near-Bayi-

Rd row-1

No.6

building

4a July 24

4a July 25

Floor 7 of

near-Bayi-

Rd row-1

No.6

building

4a July 24

4a July 25

Floor 1 of

back-row

building

2 July 24

2 July 25

22

22#

Qinghai

MCH

Hospital

Floor 1 2 July 24 Occasional

over-

standard

(day and

night)

mainly

results from

traffic noise

on the Bayi

Rd.

2 July 25

Floor 5 2 July 24

2 July 25

Floor 10

2 July 24

2 July 25

23

23#

Sheng

Meitan

Wuce RC

Floor 3 of

near-Bayi

Rd row-1

building

4a July 24 Occasional

over-

standard

(night)

mainly

results from

traffic noise

on the Bayi

Rd.

4a July 25

Floor 6 of

near-Bayi-Rd row-1

building

4a July 24

4a July 25

2 July 24

117

No

.

Monitoring Point-

Positions

Acoustic

Function

al Zones

(Category

)

Monitorin

g Date

Monitoring

Value (dB)

Standard

Value (dB)

Over-

standard

(dB) Over-

standard

Reasons

Daytim

e Night

Daytim

e

Nigh

t

Daytim

e

Nigh

t Leq L90

Le

q

L9

0

Floor 1 of

back-row

building

2 July 25

24

24#

Sheng

Renda RC

Floor 1 of

near-

Wuyi-Rd

roadside

building

1 July 25 Occasional

over-

standard

(night)

mainly

results from

traffic noise

and living

noise on the

Wuyi Rd.

1 July 26

25

25#

Taiheyuan

RC

Floor 3 of

near-

Wuyi-Rd

roadside

building

4a July 25

Occasional

over-

standard

(night) of

back-row

category 2

zones

mainly

results from

traffic noise

and living

noise of

Wuyi Rd.

4a July 26

Floor 7 of

near-

Wuyi-Rd

roadside

building

4a July 25

4a July 26

Floor 13

of near-

Wuyi-Rd

roadside

building

4a July 25

4a July 26

Floor 1 of

back-row

building

1 July 25

1 July 26

118

5 Forecast and Evaluation of Environmental Impacts

5.1 Forecast and Evaluation of Environmental Impacts

5.1.1 Impact Analysis of Atmospheric Impacts

The proposed project construction areas shall not provided with concrete mixing stations. Air

pollution sources during the construction period include dust generated during the dust

generated in the course of road surface paving, the loading and unloading of materials of

sand/gravel and powder and transportation; asphalt smoke generated from road paving and

exhaust fumes from construction machinery and transport vehicles powered by fuel oil.

（1）Flying Dust

In the preliminary stage of construction, excavation of earthwork will be carried out according

to design requirements. These processes will destroy original land surface, thus forming a

stretch of bare land. In hot days, surface water moisture will evaporate, leading to the formation

of dry loose particles that weaken the land. When heavy wind blows, it can cause silty dust to

rise. Certain part of the dust is floating in the air, other parts rise high and fall to nearby ground

and building surfaces with the wind. The impact of dust pollution can last for 30 minutes, which

is the main factor that causes air pollution in urban environmental air.

Loose particles are generated by excavation of earth and stones, and dust pollution sources are

formed by temporary soil dumps and gravel storage yard. Secondary dust is generated during

the loading and unloading of those materials, affecting the ambient air quality of the urban roads

and on their both sides. According to the above-mentioned analysis of factors influencing

ambient air, the secondary dust generated during transportation is related to degree of road

surface cleaning and vehicle traveling speed. Under the same condition of road surface cleaning,

the faster the vehicle speed, the greater the dust emission. Under the same speed condition, the

more dust the road, the greater the amount of flying dust.

The daily average concentrations of TSP in the air at different distances downwind from the

construction site as well as changes in TSP concentration after water spraying at construction

sites are also shown in Table 5.1-1. .

Table 5.1-1 Changes in TSP Concentration of Construction Site Air

Wind Downward (m) 10 20 30 40 50 TSP Day

Average

Standard

0.3mg/m³

TSP Concentration (no Water

Spraying) (mg/m³) 1.75 1.30 0.780 0.365 0.345

TSP Concentration (After Water

Spraying ) (mg/m³) 0.437 0.350 0.310 0.265 0.250

It can be seen from Table 5.1-1 that without taking any protective measures, the TSP

concentration in the wind direction at the construction sites rapidly decreases with increasing

distance, and its concentration is basically stable after about 40m. Its affected scope shall be

rated according to Level 2 criteria of the Ambient Air Quality Criteria (GB3095-2012)

(standard daily average value of TSP: 0.3mg / m³) . The criterion shall be up to 50m away.

After sprinkling construction sites, it can have an obvious effect of suppressing TSP on the

construction sites. At about 35m downwind, the daily TSP concentration has dropped below

the standard value. It can be seen that timely sprinkling at the construction sites to ensure the

119

wetting of the construction sites is conducive to suppressing generation of dust on the

construction sites, which can effectively reduce the impact of flying dust on the surrounding

environment.

According to the site investigation, there are a number of sensitive protection targets

surrounding the urban roads, like the Xining Jiaojindadui RC, the Jinwei Building, Wuzi

Gongxiao Gongsi RC and the Qiyi RC. They are located at the nearest distance of 20m from

the red line of proposed works, with great impacts of constructional flying dust. In order to

reduce impacts of flying dust from construction sites and vehicle transportation on the

surrounding environment, the implementing unit and the construction unit should do a fine job

in carrying out air pollution prevention & control work during the construction period as

required by relevant regulations of the Xining Municipality, such as setting enclosure,

standardization of stacking of powder materials and vehicles transportation, regular watering,

timely slag removal and so on.

（2）Waste Gases of Asphalt Paving

Road pavement shall be built with asphalt concrete, which are purchased by commercial

outsourcing, with no need to undertake concrete mixing on spot. Asphalt smoke mainly shows

up in the process of asphalt paving. When paving, the asphalt is compacted by road roller and

naturally cooled after about 10 minutes, the temperature of asphalt mixture drops to less than

82°C and the asphaltic smoke is obviously weakened. The asphaltic smoke will disappear as

soon as the asphalt is solidified. Major toxic and hazardous substances in the asphalt fumes are

THC, phenol and benzo [a] pyrene. Bitumen fumes produced by asphalt paving has lower

emission concentration. Benzo [a] pyrene can meet requirements of monitoring limit for

unorganized emission in the Integrated Emission Criteria of Air Pollutants (GB16297-1996) ,

with less impact on the surrounding environment.

The MR project does not set asphalt mixing stations, for asphalt needed for construction shall

be purchased locally in the form of commodity asphalt. It is required by the EIA that canned

asphalt shall be shipped by dedicated vehicles so as to prevent being scattered or dropped

from polluting the environment.

（3）Tail Exhaust of Construction Vehicles

Fuel-powered construction machinery and exhaust emissions from transport vehicles will lead

to an increase in the total amount of atmospheric pollutants in the ambient air of some areas.

However, as the authorities have stepped up its efforts on the management of motor vehicle

exhaust in recent years, and the construction agencies have strengthened maintenance and

management of construction machinery and equipment, exhaust emissions generated by

construction machinery, vehicles will produce less pollution on the surrounding environment.

5.1.2 Impact Analysis of Surface Water Environments

During the project construction period, the impacts on the surrounding water environment

mainly result from constructional wastewater and living wastewater.

（1）Water Environmental Impacts of Bridge Construction

① Water Environmental Analysis of Bridge Demolition

The Xiguan Avenue runs across the Nanchuan River. The existing Xiguan Bridge has a total

length of 43.2m, with a cross-border 9.6m +24 m +9.6 m and no water piers. The project

120

proposes to demolish and reconstruct the decks and piers of the Xiguan Bridge. The Old bridge

demolition shall be undertaken by using the scheme of mechanical crushing demolition and

reconstruction, in the order of demolition: top-down, that is, the bridge deck – the upper part of

the bridge – the lower part of the bridge structure. If good protective measures are not taken in

the demolition of the bridge, demolished building debris will drop into the Nanchuan River, or

demolished building wastes are not timely cleared and shipped but casually heaped up near the

water body, they can easily result in water and soil erosion, which in turn lead to deterioration

of water quality of the river and regional water pollution for a certain period of time. The EIA

requires construction units to strengthen prevention and protection before the bridge demolition

by making sure that construction takes place within the environment of safe enclosure. During

the construction, it is essential to carry out construction in strict accordance with standardized

operation and civilized construction. The construction garbage generated from demolition of

the bridge should be promptly removed and transported to the designated construction waste

disposal site to avoid causing pollution to the Nanchuan River landscape water body.

② Water Environmental Impacts of Riverbed Disturbance

Bridge construction process is divided into construction preparation, substructure construction,

superstructure construction. Their impacts on the environment are mainly concentrated in the

substructure construction. The Xiguan Avenue of this MR project is perpendicular to the

Nanchuan River in the form of a bridge with a width of river-crossing of about 30m. The holes

and pans of its main bridge are 70m + 40m. Since the bridge crosses over without water piers.

Therefore, its construction does not need to disturb the river bed, with limited impact on the

water quality of the Nanchuan River water body.

③ Water Environmental Impacts of Construction Drilling Slag (mud)

The bridge crossing the Nanchuan River shall be constructed by using bored pile pouring

construction technology. The mud treatment under construction shall be like this: before drilling

there is a circulating mud sedimentation tank (It is proposed to use mobile steel box); while

drilling, mud circulation is done for wall consolidation; in the circulation course, earth and rock

are brought into the mud pool for sedimentation, and the mud after the sedimentation is recycled.

At the same time, the sedimentation tank should be cleaned regularly, and the sediments after

clearing should be piled up and fenced. Therefore, the mud generated during the bridge

construction will not cause any pollution to the water body.

The bridge foundation construction over the Nanchuan River will produce drilling slag. If

randomly heaped up, they can easily cause soil erosion, which in turn leads to the deterioration

of water quality of the river, thus resulting in a certain period of time and a certain range of

water pollution. The EIA requires that the construction units shall strictly observe operational

norms and civilized behaviors in the construction by timely removal of sediments, and banning

the set up of material storage yards and construction camps and other temporary land occupation

facilities and all other temporary land-based facilities in order to avoid the waste water

generated into the water body for pollution.

（2）Constructional Wastewater

The construction site of the project will not be provided with maintenance sites, and the

mechanical maintenance shall be unified to take place at professional maintenance points. The

construction wastewater is mainly mechanical and vehicular wastewaters after cleaning. Such

wastewater contains a large amount of silt or mud, with a high concentration of suspended solids

or particles, a pH of weak alkaline, a small amount of dirty oil. According to analogical

investigation, the wastewater has a concentration of suspended solids of generally 1000-

121

5000mg / l, with petroleum <10 mg / L. It can be recycled after oil separation and

sedimentation.

Since the project construction sites are relatively concentrated, the EIA requires that temporary

sedimentation ponds, grease traps be built on temporary working sites. The equipment rinse

water after grease separation enters the temporary sedimentation tanks for oil separation or

precipitation. After more than 12 hours of sedimentation, the main pollutant - SS in the

wastewater can be reduced to less than 200 mg / L. The wastewater can be recycled, for example,

for equipment flushing, water-sprinkling for dust suppression, instead of being directly

discharged into the Nanchuan River and the Huangshui River Through the strict treatment of

wastewater, it will have a small impact on the surface water of the river.

In addition, a large amount of silty dust and earthwork will also be generated from such

construction activities like road reconstruction, removal of original road pavement and

earthwork excavation of municipal pipeline systems. Without good management, surface runoff

possibly generated by rain erosion may be discharged into municipal sewage pipeline systems.

In such a way, there will be an increase in sediment content in the municipal drainage pipeline

systems near the project construction sites. In that case, that will result in serious sewer siltation

and in turn affect the sound function of urban drainage network, thus leading to poor drainage

during rainy seasons.

（3）Living Sewage

During the project construction, construction workers will produce a certain amount of

domestic sewage. According to similar project data, during peak construction period, there are

generally about 100 people. At the rate of 50L water use requirement each person per day and

a domestic wastewater discharge coefficient of 0.80, the maximum domestic sewage

production shall be 4.0m³/d, and the sewage shall have concentrations of characteristic

pollutants: COD300mg / L and ammonia nitrogen 30mg / L.

Combined with the characteristics of social environment along the urban roads, the drainage

status along the roads belongs to the Xining No. 1 Sewage Treatment Plant. The project

construction sites shall be provided with counterpart construction septic tanks and drainage

pipeline, which can be connected with municipal sewage pipeline network. in a sense, the

construction domestic sewage shall, after septic bank treatment, enter the municipal sewage

pipelines, and eventually run into the Xining No. 1 Sewage Treatment Plant.

The project does not involve drinking water source protection zones and centralized drinking

water source intakes. After corresponding environmental protection measures are taken, the

bridge construction as well as production and domestic wastewater during the construction

period will not have a significant impact on the water environment. The environmental impact

of during the construction period is temporary, and as the foundation construction is completed,

the impact will gradually disappear.

5.1.3 Impact Analysis of Acoustic Environment

Noise of Construction Machinery

（1）Noise Pollution Source and Characteristics of Construction Machinery

In the process of construction of the proposed project, there are a number of construction

machines and transport vehicles involved. The construction activities have some interference

with the acoustic environment along the project areas.

122

The main noise sources of road construction during the construction stage come from working

noise of construction machinery and radiated noise of transportation vehicles. Although these

noises are short, with long construction period and many construction machines, construction

machinery is generally characterized by heavy noise and irregularity. According to the

characteristics of the MR project, the construction process mainly consists of foundation

construction, pavement construction, and construction in relation to traffic, afforestation and

lighting.

(1) Foundation construction: It mainly involves excavation and filling (including pipeline) of

earthwork, and compaction of pavement and other construction processes. At the same time,

these constructions are accompanied by numerous transportation vehicles entering and

leaving construction sites. The construction machinery at this stage mainly includes loaders,

vibratory rollers, bulldozers, graders, drilling machines, pile drivers and other construction

machines.

(2) Road construction: It mainly deals with road asphalt paving. Construction machinery

mainly includes large asphalt pavers.

(3) Construction of traffic, greening and lighting works: It mainly includes improved signage

and marking of urban roads as well as greening and lighting engineering. However, large-

scale construction machinery is basically not used at this stage and is relatively scattered.

Part of the work is done manually, so the noise has less impact.

The noise during the construction mainly comes from construction machinery and vehicles for

construction and transportation, of which it is based on that from constructional equipment. It

is noted that construction machinery mainly includes excavators, bulldozers, road rollers and

loaders.

Different levels of source intensity from common road construction machines are shown in the

following table.

Table 5.1-2 Noise Source Intensity of Common Road Construction Machinery

No. Machinery Types Measuring Distance

（m） Maximum Sound Level（dB）

1 Wheel Loader

2 Land Leveler

3 Vibrating Road Roller

4 Dual-wheel and dual vibrating

Road Roller

5 Tyer Road Roller

6 Soil Dozer

7 Tyer Hydrohaulic Excavator

8 Road Paver

9 Power Generation Set

10 Compact Well Driller

（2）Forecast Methods

The approximate value of noise during construction is calculated according to point sound

123

source, with the formula as follows:

cPAp Lr

rLL

0

0 lg20

Where:

LAP - A sound level at the prediction point (r meter from the sound source), dB;

Lp0 - A sound level at the reference point (r0 m from the sound source), dB;

Lc - correction sound level, according to HJ2.4-2009 "Environmental Impact Assessment

Technology Guidelines - Acoustical Environment" and HJ/T17247.2-1998 "Acoustic Outdoor

Acoustic Transmission: Part 2: General Calculation Methods" , it is possible to determine

additional attenuation volume generated from empty obstacles, vegetation, air and the like.

When multiple devices are being operated at the same time, their sound levels are obtained by

overlay calculation in the following formula:

N

i

LiL1

10/10log10总

Where: L total - the total sound level after overlay, dB;

Li - the sound level of sound source i, dB.

(3) Forecast Results

The attenuation of a single construction machinery or vehicle noise varies with distance in Table

5.1-3.

Table 5.1-3 Forecast Results of Noise of Major Construction Machinery

Unit： dB(A)

No.

Distance from

Constr. Sites (m)

Machinery Types

1 Wheel Loaders

2 Graders

3 Vibratory Road Rollers

4 Dual-wheel and dual-vibration

Road Rollers

5 Tyred Road Rollers

6 Bulldozers

7 Tyred Hydraulic Excavators

8 Road Pavers

9 Power Generation Sets

10 Impact drilling machine

Notes：Noise level at a distance of 5m shall be actually measured sound level.

During the construction period, construction machinery used in different construction stages

have different combinations, with relatively large impact scope of noise in the roadbed

earthwork construction phase. During the roadbed construction period, according to one

combination of 1 excavator, 1 bulldozer and 2 loaders, calculated impact scopes of construction

noise are shown in the table below.

124

Table 5.1-4 Impact Scopes of Noise at Different Construction Stages Unit: dB (A)

Construction Forms Distance（m）

Combination of

4 Machines

at the Same Time

（4）Impact Analysis

During the construction period, the Ambient Noise Emission Criteria for Building Construction

Sites (GB12523-2011) shall be implemented. According to the calculation in Table 5.1-3, for a

single machine in operation, the construction machinery should meet the criteria of 70dB(A) in

the daytime at 60m away from the construction site and 55dB(A) at night at 200-300m away

from the construction site according to the "Ambient Noise Emission Criteria for Building

Construction Sites" (GB12523-2011) . In the actual construction process, often multiple

machines work at the same time, radiations from various noise sources overlay each other, with

higher noise level and greater radiation range.

According to the field survey under the MR project, there are a large number of densely

distributed residential areas, hospitals and schools near the physical works along the Qiyi Road,

the Wuyi Road and the Changjiang Road, such as Ruiheyuan RC, Qinghai Ribao RC, Qingmian

RC, Qiyi RC, Taiheyuan RC, Zhoujiaquan Modern City Mall and Huaningyuan RC, Qinghai

Provincial TCM Hospital and Xining No.1 Middle School. Daytime and night construction

will interfere with the normal living of the above-mentioned residential compounds, in

particular, with greater noise impact at night. Corresponding measures for protection and

management should be taken. For example, at night (22:00 ~ 6:00) and residents lunch break

(12: 00-14: 00), construction activities are banned; it is wise to select low-noise construction

machinery; construction and transport vehicles are run at speed limit; no horning is made for

transport vehicles in residential areas. By adopting the above measures, the impact of

construction noise on residents will be reduced. With the completion of the project, the impact

of construction noise will no longer exist. The adverse impact of construction noise on the

environment will be temporary and immediate.

Noise of Traffic Transportation

During the transportation of construction materials such as commercial asphalt concrete and

abandoned spoils or slag from construction, the noise of transportation vehicles will affect the

noise sensitive points on both sides of transportation roads. According to the analogy test, the

sound levels is 82-88dB (A) at the distance of 7.5m away from the truck, 79-85dB (A) at 10m

away and 72-78dB (A) at 30m away. When the transport vehicles pass, residential areas within

the range of 50m along the urban roads will be more or less affected.

5.1.4 Impact Analysis from Solid Wastes

Solid wastes includes abandoned earthwork, building garbage and living garbage of

construction workers during the project construction period.

（1）Abandoned Earthwork and Building Garbage

The project will have a total amount of wastes of 132,400 m³, all of which are permanently

125

discarded. They mainly include debris or abandoned slag from demolition original pavements

and bridge, remaining earthwork of pipeline ditch excavation after rational utilization and

bridge foundation dross. If abandoned materials are not disposed of properly and piled up

arbitrarily, they will not only occupy land resources, but also cause flying dust in windy days,

leading to environmental air pollution. When it rains, soil erosion will be easily caused, thus

urban landscape will be affected.

According to the Administration Methods for Urban Construction Garbage in Xining (October

1, 2012), if all the execution and construction units have newly constructed, reconstructed,

expanded or demolished all kinds of buildings (structures), road networks, landscaping, or all

residents have newly constructed, decorated or furnished houses, building garbage such as

abandoned spoils or materials and other wastes arising from these constructional activities shall

be disposed of by implementing the system of waste sentinel elimination at designated sites.

Under the MR project, they shall be uniformly transported to the commercial disposal site of

the Najiashan Zhengyuan Company for disposal.

During the process of excavation and backfilling of the drainage pipeline network and the

common utility tunnels, there will be temporary earthwork for backfilling of pipe ditches in the

MR project. Because of long pipelines, scattered layout and short construction period, the

earthwork should not be piled up in a centralized way. The backfilling earthwork at the later

stage of trench excavation shall be temporarily heaped up alongside the trench and there will

be no separate storage site for soil dumping.

(2) Living Garbage of Construction Workers

At the rate of 1.0kg/person.d of domestic solid waste of about 100 construction workers for at

peak time, the maximum amount of domestic garbage generated during construction period

shall be about 0.1t/d. After the garbage collected by the project construction workers is disposed

of by sanitation agency, there will be no significant impact on the surrounding environment.

5.1.5 Ecological Impact Analysis

Impacts on Animal and Plant Resources

Located in the built-up areas of the Xining City, the project is an improvement or expansion of

existing urban roads. The project land occupation is of highway land type. According to field

reconnaissance, the urban roads are a place where human activities are more frequent. They

have relatively low coverage of vegetation coverage. The types of vegetation mainly include

artificial trees and shrubs and other locally common species. Currently, there are livestock and

poultry such as dogs, cats within the EIA scope. The construction of the project shall take place

along the existing urban roads, thus its construction activities are mainly concentrated within

the scope of the roads, thus no significant impacts on plant and animal resources along the lines.

In the meanwhile, with the implementation of landscape greening measures, the greening area

shall be about 19319m², thus making up for the loss of vegetation caused by the project

construction.

The Xiguan Avenue within the project crosses the Nanchuan River in the form of bridge (the

Xiguan Bridge). The Xiguan Bridge adopts one-step river crossing without water piers. The

bridge construction basically neither disturbs the environment of the Nanchuan River nor forms

a belt of suspended matter horizontal to the water body. As a result, there will not be an obvious

increase in suspended sediment content caused by the construction. Therefore, the proposed

project has a slight impact on aquatic creatures. Wastewater during the construction period shall

not be discharged into the Nanchuan River, thus having no impact on the aquatic creatures of

126

the water body.

Impacts on Urban Ecological Landscape

The project falls into the category of road reconstruction and expansion. The ecological

environmental impact during the construction period is mainly reflected in the impact over the

urban ecological landscape. It mainly involves the following aspects are:

(1) In the process of project construction, it will have a certain adverse effect on local urban

appearance and urban landscape. However, this effect is temporary and will disappear after the

construction is completed. Additionally, through the improvement of road greening, the city

landscape will be beautified.

(2) During the construction, foundation excavation, earthwork and construction materials

stacking, especially piled construction spoil will affect the city's sanitary environment and urban

landscape. If the spoil is piled up casually, flying dust will pollute pavements and houses in

sunny days, thus having a great impact on the surrounding environment and residents. In rainy

days, rainwater will scour earthwork and sediments will enter the municipal pipeline system or

the Nanchuan River, causing congestion or blockage. The construction units should timely

transport and dispose of slag, while leaving some space to temporarily spoil dumping. There is

also need to adopt counterpart measures to reduce its environmental impacts.

(3) Disorderly parking of some mechanical equipment during the construction process may also

bring about uncoordinated factors and impacts to the surrounding landscape.

(4) Located in the built-up areas of the city, the project is an improvement and expansion of the

original urban roads, the lands for construction sites and temporary spoil dumping sites shall be

the overlapping areas of main works. The project construction will not change the original land

utilization function, with less disturbance of land surface.

In summary, the project construction will neither change the existing land use pattern along the

urban roads nor exacerbate the tension of land resources along the lines. Meanwhile, after the

implementation of greening measures, the area of green land along the routes will increase, thus

contributing to the beautification of the surrounding environment and enhancing the overall

image of the city.

Rationality Analysis of Temporary Land Selection

(1) Rationality Analysis of Using Abandoned Slag Sites

According to the principles of earthwork balance and principal works design, after the rational

allocation of earthwork of principal works, there will be an amount of abandoned slag of

132,400m³. According to the information obtained from the Xining Municipal Urban

Administration Bureau, there are no construction wastes disposal sites temporarily in operation

in the Chengzhong District and the Chengxi District. As a result, the project slag shall be

uniformly transported to the commercial slag disposal site of Najiashan Zhengyuan Company

in the Chengzhong District. The site is located in the gully area of the Zhengyuan Ecological

Park of the Najiashan Zhengyuan company near the Nanshan Road Extension in Xining. The

site has spoil characteristics as shown in Table 5.1-4.

Table 5.1-4 Characteristics of the Slag Disposal Site

127

Spoil

Source

Amount of

Abandoned Spoil

(0,000m³)

Actual Amount of

Abandoned Spoil

(0,000m³)

Spoil Piling

Mode

Ditch

Length

（km）

Ditch

Water Area

（hm²）

Ditch Piling

Height

（m）

Improved

Access Road

（m）

Urban

Roads 1000 346.78

Ditch Spoil

Piling 3.48 43.39 10 975

The spoil disposal site is currently in operation and construction garbage and engineering dross

from other units have been abandoned. The company has turned its transportation road into a

concrete hardened road and carried out greening work on both sides of the road and on lined

the gully with arbors and shrubs. Based on the consultation with the site manager, combined

with the engineering technology of the site, the entire gully will be filled up, with greenery

work at a later stage and prevention and protection measures for downstream slag-blocking

provided. The site has a large storage capacity to meet the demand for the project wastes.

Therefore, the use of the spoil disposal site is reliable. The project sites are in the range of 10-

15km away from the site. Owing to the transport routes passing through the urban areas, the

transport vehicles shall be sealed, at the normal speed in the course of transportation.

Photos 5.1-1 Commercial Spoil Disposal Site of the Najiashan Zhengyuan Company

(2) Rationality Analysis of Land Occupation of Construction Sites

Construction sites shall be used for construction machinery parked, materials stacking,

temporary offices and living spaces. The proposed urban roads are of all half-way construction.

The project construction sites shall be set up within the scope of half-way road during the

construction. Four construction sites are set along the lines in different construction periods.

They are respectively located at K0 + 200 on the Xiguan Avenue, K0 + 920 on the Changjiang

Road, K1 + 360 at the intersection of the Qiyi Road and the Wuyi Road, K3 + 820 at the

intersection of the Qiyi Road and Delingha Road, each of which will occupy a land area of

0.10hm², totaling 0.40hm². The areas occupied by the construction sites shall be arranged within

the red line of the road without additional temporary land occupation and as far as possible from

the Nanchuan River water body. The impact on the ecological environment during the

construction period shall be small. There are some residential areas around the construction

sites, but given that the construction sites are mainly used for construction camps and material

storage yards, they will be enclosed at the periphery, with less impact on the surrounding

residents. In short, there will be less impact of the construction sites on the surrounding

environment. The EIA contends that the layout of the construction sites is reasonable.

Building materials required for the project, including asphalt and concrete shall be all purchased

Gully for Spoil Disposal Site

128

directly from the market, thus no on-site materials mixing is available.

(3) Rationality Analysis of Selection of Temporary Spoil Piling Sites

The earthwork to be excavated under the MR project mainly involves old pavements and basic

layers to be removed, drainage pipelines, common utility tunnels, and slag from bridge

foundation drilling. Old pavements and basic layers and bridge foundation drilling slag shall

are timely cleared up and transported to the designated construction landfill sites, with no need

to set up special temporary storage yards. Drainage pipelines and common utility tunnels shall

be constructed in stages to avoid full excavation. Excavated earthwork shall be piled up

temporarily on either side of the pipeline ditch located within the red line. After the backfilling

of the construction, excessive earthwork shall be timely transported to the designated

construction landfill site, with no need to set up special temporary spoil piling sites.

In the construction period, management should be strengthened to take temporary covering

measures during the construction period for temporary piles of soil piled up on one side of the

pipeline ditch, so as to reduce the impact of flying dust on the surrounding environment.

5.2 Forecast & Evaluation of Environment Impacts during the Operation

5.2.1 Impact Analysis of Atmospheric Environment

During the operation period, pollution of ambient air mainly comes from flying dust pollution

and exhaust pollution generated by vehicles passing. Dust pollution caused by vehicular driving

is mainly related to road surface cleaning and road surface dryness. It is necessary to strengthen

road cleaning and water-sprinkling in the daytime and at night so as to maintain a certain degree

of humidity on the roads. Motor vehicle exhaust pollution is mainly related to vehicle traffic

flow and vehicle performance quality. In this EIA, the recommended ADMS mode in the

Technical Guidelines for Environmental Impact Assessment - Atmospheric Environment

(HJ2.2-2008) shall be adopted to forecast the impact of vehicular exhaust on ambient air during

the operation period.

Meteorological Characteristics of Pollution

Wind plays an important role in the transport and diffusion of pollutants. Therefore, according

to the statistics of frequency of perennial and seasonal monsoon trends, the analysis of surface

flow fields and patterns of wind speed variation in the EIA areas is an extremely important

component of the forecast of atmospheric environmental impacts.

The EIA has collected the Year 2016 meteorological observation data in Xining.

(1) Temperature and Wind Speed

The monthly variations of average temperature and average wind speed in 2016 are shown in

Table 5.2-1 and Figure 5.2-1, and Table 5.2-2 and Figure 5.2-2,

1) Temperature

In 2011, the average temperature of the Xining City was 5.95 ℃, with the minimum mean

temperature in January of -10.86 ℃ and the maximum mean temperature in August of

16.78 ℃.

129

Table 5.2-1 Year 2016 Monthly Average Temperatures in Xining Unit：℃

Months Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Temperature ℃ -8.1 -5.9 5.9 9.9 14.9 16.3 19.6 17.1 13.9 8.9 1.6 -3.0

Figure 5.2-1 Year 2016 Temperature Variation Curve

2) Wind Speed

The changes in monthly average wind speeds in 2015, that is, the monthly average wind speed

changes based on the 2015 meteorological statistical data, as shown in Table 5.3-4 and the

monthly changes of average annual wind speed are mapped.

Table 5.2-2 Year 2016 Monthly Average Wind Speeds in Xining Unit：m/s

Months Jan. Feb. Mar. Apr. May Jun. Jul. Aug. Sep. Oct. Nov. Dec.

Wind Speed（m/s） 1.6 1.7 1.7 1.7 1.5 1.2 0.9 1.2 1.0 1.1 1.4 1.3

Figure 5.2-2 Year 2016 Monthly Wind Speed Variation Curve in Xining

The Year 2016 Quarterly Hour Average Wind Speed Daily Variations are shown in Table

5.2-3 and Figure 5.2-3。

Table 5.2-3 Year 2016 Quarterly Hour Average Wind Speed Variations

Hour Wind Speed

Winter

130

Spring

Summer

Autumn

Hour

Wind Speed

Winter

Spring

Summer

Autumn

Figure 5.2-3 Year 2016 Quarterly Hour Average Wind Speed Variation Curve

(2) Pollution Coefficient

The pollution coefficient comprehensively considers the effects of wind direction and wind

speed on the transmission and dilution of pollution sources and the like, which can qualitatively

reflect the impacts of wind noise on the ground. The greater frequency of wind direction and

the lower wind speed at a certain location and the greater the pollution coefficient of the location.

According to the Year 2016 meteorological parameter values, the calculated wind direction

pollution coefficients are shown in Table 5.2-4. The Xining's monthly and monsoon frequencies

of all wind directions in 2016 are shown in Table 5.2-5, and the annual, monthly and monsoon

rose patterns are shown in Figure 5.2- 4.

Table 5.2-4 Year 2016 Monthly Pollution Coefficients of Wind Directions

Months

Efficient

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov De

c Spr Sum Aut Win Ann

N

NNE

NE

ENE

E

ESE

SE

SSE

S

SSW

131

Months

Efficient

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov De

c Spr Sum Aut Win Ann

SW

WSW

W

WNW

NW

NNW

平均

Table 5.2-5 Frequencies by Month, Quarter and Wind Direction（％）

Wind

Frequency

Months

N N

NE

N

E

E

N

E

E

E

S

E

S

E

SS

E S

SS

W

S

W

W

S

W

W

W

N

W

N

W

NN

W C

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Spring

Summer

Autumn

Winter

Annual

132

Table 5.2-3 Year 2016 Rose Pattern of All Wind Directions

As can be seen from the above charts, in 2016, the Xining city had no dominant party throughout

the year. The position of windward direction of SSW in autumn, winter and all year around was

the most seriously polluted; the position of windward direction of S in spring was the most

seriously polluted and that of SSW was the second; the position of windward direction of N

was the most seriously polluted and that of NNE was the second.

Contents of Forecast & Evaluation

西宁交通项目风频玫瑰图

一月,静风28.09%

NNE

E

SES

SW

W

NW

二月,静风22.02%

NNE

E

SES

SW

W

NW

三月,静风15.32%

NNE

E

SES

SW

W

NW

四月,静风14.86%

NNE

E

SES

SW

W

NW

五月,静风16.67%

NNE

E

SES

SW

W

NW

六月,静风15.69%

NNE

E

SES

SW

W

NW

七月,静风18.55%

NNE

E

SES

SW

W

NW

八月,静风23.66%

NNE

E

SES

SW

W

NW

九月,静风27.64%

NNE

E

SES

SW

W

NW

十月,静风30.24%

NNE

E

SES

SW

W

NW

十一月,静风35.14%

NNE

E

SES

SW

W

NW

十二月,静风30.65%

NNE

E

SES

SW

W

NW

全年,静风23.22%

NNE

E

SES

SW

W

NW

春季,静风15.63%

NNE

E

SES

SW

W

NW

夏季,静风19.34%

NNE

E

SES

SW

W

NW

秋季,静风31.00%

NNE

E

SES

SW

W

NW

冬季,静风27.08%

NNE

E

SES

SW

W

NW

图例(%)

N

E

S

W

5.0

10.0

133

（1）Forecast Methods

The ADMS model recommended in the Guidelines for Environmental Impact Assessment-

Atmospheric Environment (HT2.2-2008) is adopted to forecast the impact of vehicle exhaust on

the ambient air during the project operation period.

ADMS can simulate short-term (hour average, day average), long-term (annual average)

concentration distribution of pollutants emitted from point sources, surface sources, line sources

and body sources, which is applicable for rural or urban areas, simple or complex terrains. The

model takes into account functions such as building sinking, wet deposition, gravity settling

and dry deposition, and chemical reactions. Chemical reaction module includes calculation of

the reaction between nitrogen monoxide, nitrogen dioxide and ozone.

（2）Principle of Typical Conditions Selection

① Calculating hour average mass concentration requires using long-term meteorological

conditions for hourly or successive calculation. The hourly meteorological conditions with the

most serious pollution (for all calculation points) and several hours of meteorological

conditions (depending on the degree of impact on the ambient air-sensitive areas) that have the

greatest impact on each environmental air protection target shall be selected as typical hourly

meteorological conditions.

② Calculating day average mass concentration needs using long-term meteorological

conditions for daily average calculation. The meteorological conditions of the most serious

pollution (for all calculation points) and a number of daily meteorological conditions

(depending on the degree of impact on each air-sensitive area) that has the greatest impact on

each environmental air-protection target shall be selected as typical daily meteorological

conditions.

（3）Forecast Contents

According to the characteristics of pollutants in this MR project and the requirements of

atmospheric guidelines, combined with the pollution meteorological characteristics in this area,

daily and hourly impacts on atmospheric environment is predicted. The predicted contents are

as follows:

① Maximum hourly concentration distribution;

② Maximum daily concentration distribution;

③ Annual average concentration distribution.

（4）Predictors

Major vehicular exhaust emission factors shall be selected as CO, NO2. The emission of NO2

is converted at the ratio of NOx, that is, Q (NO2) / Q (NOx) = 0.9.

◆ Forecast Periods

The impact of the project on the atmosphere increases with more vehicles (an increase in the

emission of vehicular exhaust). According to the preliminary forecast, there will be less impact

of vehicular exhaust on the surrounding environment. Due to adverse environmental conditions,

the EIA shall set the forecast period of long-term operation to be Year 2033.

◆ Evaluation Criteria

The function zone of ambient air in the project areas as well as the surrounding environment

134

shall be classified as Category II. Therefore, the EIA shall adopt Level 2 criteria in table 1 as

specified in the Ambient Air Quality Criteria (GB3095-2012), as shown in Table 5.2-6.

Table 5.2-6 Evaluation Criteria

Pollutants Hourly Average Daily Average Yearly Average

NO2（ug/m³）

CO（mg/m³）

◆ Forecast Scope

According to the characteristics of road air pollutants, it is possible to forecast environmentally

sensitive targets within 200m on both sides of the road centerline.

◆ Forecast Source Intensity

The project source intensity is calculated according to the project traffic flow and exhaust

emission factor of single vehicle. The forecast of NO2 and CO of this project is shown in Table

3.2-9.

◆ Forecast Targets

It is necessary to forecast maximum hourly concentration, maximum daily concentration, long-

term yearly average concentration of pollutants grid points and environmentally sensitive

targets. Based on the range of atmospheric forecast, project calculation domains shall be

generalized and gridded in the EIA. One calculation domain is divided into computational

networks to forecast grid points. In the meanwhile, it is possible to forecast maximum hourly

and daily concentrations and long-term annual average concentration at environmentally

sensitive points along the urban roads.

Forecast Results and Evaluation

（1）Forecast Results of Ground Concentration at Grid Points

Maximum floor concentrations of Grid Points are shown in the table below.

Table 5.2-7 Forecast Results of Maximum Floor Concentrations of NO2, CO at Grid

Points during the Long-term Operation Period

Forecast

Factors Forecast Contents

Relative

Coordinates

（m） Forecast

Results Show-up Time

Evaluation

Criteria

Standard

Rate

（%）

Over

standard（%）

X Y

NO2

（μg/m³）

Hourly

Concentration 4202.02 3308.08 48.493 Hour 19, Day 254 200 19.50 /

Daily

Concentration 3914.14 3636.36 39.008 Day 358 80 60.62 /

Yearly

Concentration 4202.02 3308.08 23.495 / 40 58.74 /

CO

（mg/m

³）

Hourly

Concentration 4202.02 3308.08 0.708 Hour 19, Day 254 10 5.70 /

Daily

Concentration 3914.14 3636.36 0.570 Day 358 4 17.70 /

Yearly

Concentration 4202.02 3308.08 0.343 / / /

135

Based on the forecast results combined with status monitoring results of atmospheric

environment, it can be seen that the maximum hourly concentration, the maximum daily

concentration and the annual average concentration of NO2 and CO in the regional grid

prediction points can meet level 2 standard limit in the Ambient Air Quality Criteria (GB3095-

2012). Therefore, NO2 and CO generated during the project operation will not cause obvious

adverse impacts on the regional environment.

(2) Concentration of sensitive sites to predict the results

The maximum and maximum concentrations of NO2 and CO at each atmospheric environment

sensitive point along the project are shown in Table 5.2-8.

（2）Forecast Results of Floor Concentration of Sensitive Points

The maximum floor concentrations of NO2 and CO of all atmospheric sensitive points

along the project urban roads are shown in Table 5.2-8.

136

Table 5.2-8 Forecast Results of Maximum Floor Concentrations of

NO2 and CO at Sensitive Points

No.

Forecast Contents Maximum Hourly Concentration Maximum Daily Concentration

Yearly

Average

Concentration

NO2 CO NO2 CO NO2

Standard

Concentration Values 200 ug/m³ 10 mg/m³ 80 ug/m³ 4 mg/m³ 40 ug/m³

Forecast Results

at Sensitive Points

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR

AU

S

The Qiyi Road Integrated Improvement Works

1

Datong Reprehensive

Office (RO) and

Qingmian Residential

Compound (RC)

Up 0.1916 1.92 Up 10.0874 12.6

1 Up 0.1472 3.68 Up 4.0079

10.0

2 Up

2

Beiyujing Alley

（No.10,12, 16,14）;

Beiyujing Alley (No.2)

Up 0.0937 0.94 Up 4.1418 5.18 Up 0.0605 1.51 Up 1.6243 4.06 Up

3

Qinghai Public Health

Vocational Technology

College

Up 0.1005 1.01 Up 5.1216 6.40 Up 0.0748 1.87 Up 2.3681 5.92 Up

4

Qingfangting RC,

Wumao zhongxing RC,

Xinhua shudian RC,

Wuzi Gongxiao RC

Up 0.2423 2.42 Up 11.2248 14.0

3 Up 0.1639 4.10 Up 4.7637

11.9

1 Up

5 Zhenghe RC Up 0.1121 1.12 Up 5.2815 6.60 Up 0.0771 1.93 Up 2.1270 5.32 Up

6 Qinghai Provincial

TCM Hospital Up 0.1264 1.26 Up 5.8103 7.26 Up 0.0849 2.12 Up 2.6591 6.65 Up

7 Hengtong Jiayuan RC Up 0.0776 0.78 Up 3.9789 4.97 Up 0.0581 1.45 Up 1.4859 3.71 Up

8 Zhongyiyuan RC Up 0.1259 1.26 Up 5.5637 6.95 Up 0.0813 2.03 Up 2.5331 6.33 Up

9

Jinwei Building, Jianhui

Building, Jingdu

Building

Up 0.1731 1.73 Up 9.1620 11.4

5 Up 0.1338 3.35 Up 3.5020 8.75 Up

10 Ruiheyuan RC Up 0.0951 0.95 Up 4.8808 6.10 Up 0.0713 1.78 Up 1.7399 4.35 Up

11 Qinghai Xining

Jingbeiqu Zone Up 0.0000 0.00 Up 0.0000 0.00 Up 0.0000 0.00 Up 0.0000 0.00 Up

12 Xinmin Jiayuan RC Up 0.1066 1.07 Up 4.8485 6.06 Up 0.0708 1.77 Up 1.8028 4.51 Up

13

Teaching & Household

Buildings of Xining No.

1 Middle School

Up 0.1474 1.47 Up 5.7695 7.21 Up 0.0843 2.11 Up 2.2867 5.72 Up

14 Hengji Center Up 0.1607 1.61 Up 7.1082 8.89 Up 0.1038 2.59 Up 2.6277 6.57 Up

15

Qiyi Road (No.369) and

Longhang RC, Qiyi

Road (No.357)

Up 0.2090 2.09 Up 10.5364 13.1

7 Up 0.1539 3.85 Up 3.8340 9.58 Up

16 Yushu Xining

Banshichu Shuiwuju RC Up 0.1444 1.44 Up 5.8158 7.27 Up 0.0849 2.12 Up 2.3210 5.80 Up

17 Qinghai Junqu

Zhaodaisuo RC Up 0.1043 1.04 Up 4.6794 5.85 Up 0.0684 1.71 Up 1.6042 4.01 Up

18 Qinghai Junqu Caozi

RC Up 0.2314 2.31 Up 11.5444

14.4

3 Up 0.1686 4.22 Up 4.1916

10.4

8 Up

19 Jingniu RC, Wuxiandian

Yichang RC Up 0.1680 1.68 Up 8.0694

10.0

9 Up 0.1179 2.95 Up 2.8407 7.10 Up

137

No.


Yearly

Average

Concentration

NO2 CO NO2 CO NO2

Standard


Forecast Results

at Sensitive Points

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR

AU

S

20

Dongguan Community

Service center and

Shuicheng Huating RC

Up 0.2288 2.29 Up 12.1187 15.1

5 Up 0.1770 4.43 Up 5.6755

14.1

9 Up

21 Erjian RC Up 0.0925 0.93 Up 4.5260 5.66 Up 0.0661 1.65 Up 2.0547 5.14 Up

22 Guangji RC Up 0.2676 2.68 Up 15.4312 19.2

9 Up 0.2254 5.64 Up 7.3421

18.3

6 Up

23

PBOC Bank RC, Qiyi

RC (Qisehua

Kindergarten and Meijia

Huanyuan RC)

Up 0.2017 2.02 Up 11.1898 13.9

9 Up 0.1634 4.09 Up 4.3721

10.9

3 Up

24 PAP Corps Qinghai

Hospital Up 0.2213 2.21 Up 12.5614

15.7

0 Up 0.1835 4.59 Up 5.9823

14.9

6 Up

25 Xining Qiyi Middle

School Up 0.0879 0.88 Up 4.2857 5.36 Up 0.0626 1.57 Up 1.9304 4.83 Up

26 Dongfang Jianyuan RC Up 0.1235 1.23 Up 6.6822 8.35 Up 0.0976 2.44 Up 2.4214 6.05 Up

27 Xining Electrical Power

RC Up 0.1799 1.80 Up 9.1121

11.3

9 Up 0.1331 3.33 Up 4.2580

10.6

5 Up

28 Qinghai EP Institute and

its RC Up 0.0000 0.00 Up 0.0000 0.00 Up 0.0000 0.00 Up 0.0000 0.00 Up

29 Xuefeng Building Up 0.1607 1.61 Up 8.8271 11.0

3 Up 0.1290 3.22 Up 4.1370

10.3

4 Up

30 Railway RC Up 0.0779 0.78 Up 3.8176 4.77 Up 0.0558 1.39 Up 1.7549 4.39 Up

31 Qinghai Museum RC Up 0.0871 0.87 Up 4.3250 5.41 Up 0.0632 1.58 Up 1.9844 4.96 Up

32 Shengyuan Building Up

33 Longhua Yayuan RC,

Xiaoquan Yating RC

34 Railway Anye RC,

Dongyuan RC

35 Xiaoquan Primary

School

36 Qingying Lingxiucheng

RC

37

Qinghai Gongyi

Meishuchang RC,

Zhoujiaquan

Xiandaicheng RC,

Qinghai Tuchan Gongsi

RC (Northern Side)

38

Qinghai Tuchang RC

(Southern Side), Huade

Xingyuan RC

39 Baili RC

40 Huaningyuan RC

41 Baijia Alley (being

built)

138

No.


Yearly

Average

Concentration

NO2 CO NO2 CO NO2

Standard


Forecast Results

at Sensitive Points

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR

AU

S

42 Yicui Huayuan RC

43 Jinfeng Binheyuan RC

44

Dazhong Street

(No.4),HenanRO RC,

Bayi Road (No.92)

45 Jingsong Shengshi

Tiancheng RC

46 Gongshangju RC

47

Food&Drugs

Supervision

Administration

48

Wentai RC (including

Boli Kindergarten)

Bayizhong Road

(No.63)

49 Chengshanyuan RC

50 Kangyuan RC

51 Bayi Road Minghang

RC

52

Youju RC, Jiedusuo Rc,

Xinhua Xiechang RC,

Xining Dier

Fuzhangchang RC

53 Longfu RC

54

Qinghai Provincial

Forestry Bureau and its

Bayi Road RC

55 Baiyuan Yishe RC

(being built)

56 Dongrong Building

57 Bayixi Road (No.43)

RC

58 Liangyong RC

59 Qinghai Women &

Children Hospital

60 Ganxiusuo RC

61

Qinghai Coal Geologic

Survey Station

(NO.105) and its RC

62 Qinghai Meitan Wuche

RC

The Wuyi Road Slow-Moving Improvement Works

139

No.


Yearly

Average

Concentration

NO2 CO NO2 CO NO2

Standard


Forecast Results

at Sensitive Points

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR AUS

CC

(ug/m³) SR

AU

S

63

Qinghai Provincial

People’s Congress

(PPC)

64 Qinghai PPC RC

65 Jingji Huating RC

66

Taiheyuan RC, Qinghai

Radio Administration

Commission, Qinghai

Radio Monitoring

Station

67 Xining Wuyi Cultural

Palace, Mingcuiliu RC

68 Wuyi Jiayuan RC


69 Jianhang RC

70 Traffic Police RC

71

Provincial Prosecution

Agency RC and

Lirangjie RC

72 Ruihuayuan RC

73 Jingfengyuan RC

74

Chengzhong District

Local Taxation Bureau

and its RC, Changjiang

Road (No. 27)

75 Qinghai Daily RC

76 Hydrology Station and

its RC

Notes: CC stands for concentration; SR for standard rate; and AUS for about up to standard.

140

As can be seen from the table, the forecast floor concentrations of NO2 and CO at sensitive

points occupy a lower standard. They can still meet Level 2 standard limits in the Ambient Air

Quality Criteria (GB3095-2012), taking regional atmospheric background values into account.

Therefore, NO2 and CO generated during the project operation will not adversely affect

sensitive environments. .

（4）Summary of Forecast Results

In the EIA, the ADMS model recommended in the Guidelines for Environmental Impact

Assessment-Atmospheric Environment (HT2.2-2008) shall be adopted to forecast the impact of

vehicle exhaust on the ambient air in the long-term operation period (Year 2032), specifically,

It is employed to forecast impacts of road pollutants on regional targets and environmental

protection targets under the typical hourly, typical daily and long-term meteorological

conditions.

According to the forecast results, it can be seen that the pollutants are mainly concentrated near

the centerline of the roads within the red line, and the pollutant concentrations at all prediction

points meet their corresponding Level 2 standard limits in the Ambient Air Quality Criteria

(GB3095-2012).

In the meanwhile, after the implementation of bus priority corridors works, bus speeds will be

significantly increased, the bus exhaust emissions will be lower than those of idle vehicles, thus

improving the quality of ambient air to some extent on both sides of the streets. In addition, as

the convenience of public transport services continues to increase, an increasing number of

citizen will be attracted to travel by bus, which in turn will reduce the number of trips by private

cars and taxis and lessen the emissions of vehicular exhaust.

141

5.2.2 Impact Analysis of Acoustic Environments

Road Traffic Noise Evaluation Methods

The road (road) traffic noise forecast model in the Appendix A of the "Technical Guidelines for

Environmental Impact Assessment - Acoustic Environment" (HJ 2.4-2009) shall be adopted.

Forecast Modes of Road Traffic Noise

（1）Forecast Modes

① Forecast mode of sound level for Class I cars.

Where:

Ψ1, Ψ2 -

—hour equivalent sound level of Class I cars，dB(A)；

— class i vehicle speed is Vi, km/h; energy average sound level A, dB (A) at a

horizontal distance of 7.5 m;

Ni ——average hourly traffic volume of Class I vehicles passing a certain forecast point

in the daytime and nighttime, vehicles/h;

r—— distance from driveway centerline to forecast point, m; applicable for noise forecast

at r> 7.5 m prediction points.

Vi —— average speed of Class I cars, km/h;

T —— time for calculating equivalent sound level, 1h;

Ψ1、Ψ2—— angle, radiation at both ends from prediction point to road sections of limited length,

as shown in Figure 5.2-4;

Table 5.2-4 Correction Functions of Roads of Limited Length,

A~B (road sections), P (prediction point)

ΔL - correction caused by other factors, dB (A), can be calculated as follows:

ΔL = ΔL1-ΔL2 + ΔL3

ΔL1 = ΔL gradient + ΔL pavement

ΔL2 = Aatm + Agr + Abar + Amisc

Where:

ΔL1 - Correction due to line factor, dB (A);

ΔL Grade - Highway longitudinal correction, dB (A);

ΔL Pavement - Correction from road pavement materials, dB (A);

ΔL2 - attenuation caused by the path of sound wave propagation, dB (A);

16]lg[10)lg(10)lg(10)()( 215.70

LLhL

rTV

N

iEieq i

i

ieq hL

iEL0

142

ΔL3 - correction amount due to reflections, etc., dB (A).

② Total vehicle equivalent sound level is:

If a predicted point is affected by traffic noise of a number of road routes (for example,

prediction points around the viaduct are influenced by multiple lanes under the bridge and over

the bridge, forecast points of roadside high-rise buildings by multiple lanes on the ground), after

sound levels of those predicted points are calculated for each lane, its contribution value can be

obtained after the superposition calculation.

Where:

- —Total vehicular equivalent hourly sound level, dB (A);

- —equivalent hour sound levels for large, medium and small

vehicles, dB(A).

（2）Calculation Parameters

① Vehicular Speed:

According to the MR project proposal, the designed speeds are 60km/h for main line flyovers,

50km/h for ground auxiliary roads, and 30 ~ 40km/h for interchanges and ramps is (straight

ramp 40km/h for straight ramps and 30km/h for annular ramps).

② Radiated Noise Level of Single Vehicle Loi

The average radiated noise level (dB) of the vehicle at the reference point (7.5 m away),

Loi, is calculated as follows:

SV LOS=12.6+34.73LgVs+△Lpavement

MV LOM=8.8+40.48lgVM+△Llongitudinal slope

LV LOL=22.0+36.32lgVL+△LLongitudinal slope

Where:

S, M, L at the bottom right corner of the table, S, M, L are small, medium and large vehicles;

Vi - average vehicle speed of Class I vehicles, km/h.

③ correction and attenuation calculation

a) Correction due to line factors (ΔL1)

◆ longitudinal slope correction (ΔL slope gradient)

For traffic noise source intensity correction caused by road longitudinal slope, its △L

Longitudinal slope calculation is determined by correction value according to Table 5.2-9.

Table 5.2-9 Correction Value of Noise Level of Road Longitudinal Slope

Longitudinal Slope

β(%) ≤3 4～5 6～7 ＞7

Correction Value

[dB(A)] 0 +1 +3 +5

LMH 1.01.01.0101010lg10

hLhLhL

eqeqeqeqTL

TLeq

LeqMeqHeq hLhLhL 、、

143

Notes：Correction is only for LVs and MVs instead of SVs in the table.

◆Pavement Correction（ΔLpavement）

The noise corrections for different road pavements are shown in Table 5.2-10.

Table 5.2-10 Noise Corrections for Common Road Pavements

△Lpavement

Asphalt Concrete Road Pavement 0

Cement Concrete Road Pavement +1~2

Notes：Correction is only for LVs and MVs instead of SVs in the table.

According to the status monitoring results, some sensitive points along the project urban roads

have over-standard noise. In order to further improve the acoustic environment quality in the

project areas, the EIA recommends using SMA asphalt concrete low-noise pavements for the

proposed urban roads.

Traffic noise is mainly composed of vehicle power noise and vehicle tire noise. Low-noise road

pavements can achieve the effect of noise reduction by decreasing vehicle tire noise. Low-noise

pavements involves paving a layer of composite materials of high porosity (usually 15% ~ 25%

of porosity) on ordinary asphalt, concrete pavements or other pavement structures, which

decreases noise by inter-opening pore network.

According to the "Research on Highway Pavement Noise Reduction Technology and Prevention

& Control Methods" (Chang'an University, Wang Caixia, 2010), process control method was

employed to carry out on-site tests for road noise of different pavement structural types to test

different attenuation effects of different pavements types over pavement noise. It turned out

that SMA pavement has a noise reduction effect of about 6 dB(A). According to "Analysis of

Noise Reduction Mechanism of SMA Pavement" (Zhao Hongzhi [J], Highways and Vehicular

Transportation, 2009), SMA pavement performs well in reducing road noise. Researches in

Europe and the United States show that SMA pavements can have a noise reduction of up to 5

dB (A) compared with ordinary pavement. Based on the above analysis, 5 dB (A) shall be

adopted for the predicted noise reduction effect of low-noise road pavement in the EIA.

b) Attenuation Generated in the Acoustic Transmission (ΔL2)

◆ Obstruction Attenuation Abar

i) Acoustic Barrier Attenuation (Abar)

Infinite sound barrier can be calculated as follows:

Where： f——Sound wave frequency, Hz；

δ——Sound path difference, m；

dBf

ttt

t

dBf

t

t

t

t

13c

40)

))1(ln(2

)1(3lg(10

13c

40)

)1(

)1(tan4

)1(3lg(10

Abar

2

2

1

2

144

c——Sound speed, m/s。

Limited Long Sound Barrier Calculation: Abar is still calculated based on the infinite sound

barrier attenuation formula and then corrected according to Figure 5.2-5. The corrected Abar

depends on the shelter angle β/θ. Sound barrier projection, reflection correction are calculated

by referring refer to HJ/T90.

Figure 5.2-5 Corrections for Acoustic Barriers of Limited Length

and linear Noise Sources

ii) Calculation of Sound Shadow Attenuation on Both Sides of High Embankment or Low Cut

Abar of attenuation of the sounding area on both sides of high embankment or low-cut area is

the additional attenuation caused by the prediction point in the acoustic area on both sides of

high embankment or low-cut.

Abar = 0 when the prediction point is in the sound casting zone.

When the prediction point is in the sound shadow zone, Abar is determined by sound path

difference δ.

According to Figure 5.2-6, sound path difference δ (δ = a + b-c) is calculated, then the Fresnel

number Nmx computed, and Abar shall be obtained from the above formula.

Figure 5.2-6 Sketch Map of Sound Path Difference Calculation

145

Figure 5.2-7 Curve of Relationship

between Noise Attenuation Abarand Sound Path Difference δ（f=500Hz）

iii) Estimated Values of Additional Attenuation of Rural Houses

Attenuation of rural houses can be calculated by reference to Appendix A of GB/T17247.2.

Within the range of the first row houses along the roads, approximate calculation can take values

as shown in Figure 5.2-8 and Table 5.2-11.

S (Sum of areas of the first row houses) and S0 (shadow part)（including house areas）

Table 5.2-8 Sketch Map of Attenuation of Rural Houses

Table 5.2-11 Estimation of Additional Noise Attenuation of Rural Houses

S/S0 Abar

40～60% 3dB(A)

70～90% 5dB(A)

1 row of houses to added after that 1.5dB(A) Maximum attenuation ≤10dB(A)

iv) Calculation of Noise Attenuation of Greening Forest Belts

Additional attenuation of greening forest belts is related to tree species, belt structure and

density and other factors. Sound waves can be attenuated in the greening forest belts near the

146

sound source or near the prediction points, or both, as shown in Figure 5.2-9.

Figure 5.2-9 Noise Attenuation while Passing through Trees and Shrubs

The attenuation of noise transmitted through leaves increases with the increase of leaf

transmission distance df, where df = d1 + d2. To calculate d1 and d2, assume that the radius of

the curved path is 5 km.

The first row in Table 5.2-12 shows attenuations caused when passing through dense leaves

with a total path length of 10 m to 20 m; the second row shows attenuation coefficients when

passing through dense leaves with a total path length of 20 m to 200 m; the attenuation of 200

m can be used when the path length through dense leaves is more than 200 m.

Table 5.2-12 Attenuation resulting from Octave Band Noise

While Passing through Dense Leaves

Items

Transmission

Distance

（m）

Octave Band Central Frequency（Hz）

63 125 250 500 1000 2000 4000 8000

Attenuation

（dB） 10≤df＜20 0 0 1 1 1 1 2 3

Attenuation

Coefficient

（dB/m）

20≤df＜200 0.02 0.03 0.04 0.05 0.06 0.08 0.09 0.12

◆Attenuation Resulting from Air Absorption（Aatm）

The attenuation caused by air absorption is calculated as follows:

Aatm=a(r-r0)/1000

In the formula, a is a function of temperature, humidity and sound frequency. In the prediction

calculation, generally, it is necessary to depend on perennial average temperature and humidity

in the areas where the construction project is located to select corresponding air absorption

coefficients. See Table 5.2-13.

Table 5.2-13 Attenuation Coefficient α of Air Absorption of Octave Bank Noise

Temperature

℃

Relative

Humidity %

Octave Bank Central Frequency Hz

63 125 250 500 1000 2000 4000 8000

◆Attenuation of Ground Effect（Agr）

Ground can be divided into four types:

147

i) Solid ground, including paved roads, water surface, ice surface and rammed ground.

ii) Loose ground, including ground covered with grass or other plants, and ground suitable for

plant growth, such as farmland.

iii) Mixed ground, consisting of solid ground and loose ground.

When sound waves are transmitted over the ground, or mixed ground with most of loose ground,

with the premise of only calculating sound level A at the prediction point, the octave band

attenuation resulting from ground effect can be calculated using the following formula:

Where:

r——distance from sound source to predicted point, m；

hm——average ground clearance of transmission path, m；It is calculated as shown in

Figure 5.2-10, hm=F/r；

F：area, m²；r，m。

If Agr is calculated as negative, then Agr can be “0” instead;

For other cases, refer to GB/T17247.2 for calculation.

Figure 5.2-10 Method for Estimating Mean Height hm

Attention resulting from multiple factors (Amisc)

Under normal circumstances, consideration is not given to attenuations resulting from changes

of natural conditions (such as wind, temperature gradient, fog).

c) Correction Due to Reflections (ΔL3)

◆Noise (Impact) Correction of Urban Road Intersections

The noise correction value (additional value) at intersections is shown in Table 5.2-14.

Table 5.2-14 Noise Additional Values at Intersections

Distance from Noise Impact Point to the Nearest Intersections（dB）

2 3004.8 ( ) 17m

gr

hA

r r

148

Intersecting Point of Fast Lane Axle Line

≤40 3

40＜D≤70 2

70＜D≤100 1

＞100 0

◆ Corrections of Reflections on Both Sides of Buildings

For corrections due to reflective impact factors such as landform and buildings on both side of

sound source, when the space between both sides of the route is less than 30% of the total

calculated height, the reflected sound correction is:

ΔL 反射=4Hb/w ≤3.2dB (when buildings on both side are reflection surfaces);

ΔL 反射=2Hb/w ≤1.6dB (buildings on both sides are common absorption surfaces)

ΔL 反射≈0 (buildings on both sides are fully absorptive)

Where:

w—Distance between reflection surfaces of buildings on both sides, m

Hb - average height h of buildings, taking average height of the lower side of both sides of the

route into the calculation, m.

① Vehicular Traffic Flow as well as Ratio of Day Traffic and Night Traffic

The predicted annual day-to-night ratio is 81.5%. The predicted traffic volume of different road

sections in this project is shown in Table 2.4-5.

① Vehicle Types Ratio: vehicle classification (large, medium and small vehicles), its

classification method is shown in Table 5.2-15.

Table 5.2-15 Classification Criteria for Vehicle Types

Vehicle Types Overall Quality of Vehicles

SVs (S) 3.5t or less

MVs (M) 3.5t or more ～12t

LVs (L) 12t or more

Notes:

1. Small vehicles: buggies, limousines, estate vehicles (7 seats or less);

2. Medium vehicles: medium trucks, medium buses (7-40 seats), tricycles and motorcycles;

3. Large vehicles: container trucks, trailers, construction vehicles, buses (40 seats or more),

large trucks.

According to the FS report of the MR project and the vehicle types classification method, ratios

of various vehicle types are shown in Table 2.4.3.

Calculation Mode of Environment Noise Levels

(LAeq) prediction of Prediction Value of Environment Noise at Prediction Points shall be

149

calculated as：

(LAeq)预＝10lg[100.1(LAeq)交+100.1(LAeq)背]

Where：(LAeq)预——prediction value of environment noise, dB(A)；

(LAeq)交——road traffic noise value at prediction point, dB(A)；

(LAeq)背——Back value of environment noise at prediction point, dB(A).

Forecast Results of Noise

Forecast evaluation shall be carried out for the near-term period (2019), the intermediate period

(2025) and the long-term period (2033) of the project Operation.

（1）Forecast of Road Traffic Noise

The EIA shall make a prediction analysis of road traffic noise using typical section. Its

prediction analysis category shall be done according to cross-section and traffic flow. For the

project road traffic noise, consideration is given to noise reduction effect (5 dB(A)) using SMA

low-noise road surface instead of blocking and reflecting actions of buildings on both sides of

the urban roads. Under this condition, the predicted value of noise at different distances from

the center line of the roads, the predicted height of 1.2m. The prediction results are shown in

Table 5.2-16.

Table 5.2-16 Forecast Results of Traffic Noise of Typical Roads

During the Project Periods Unit：dB(A)

Forecast

Year Road Sections Periods

Distance from Road Centerline（m）

2019

Qiyi Rd

Changjiang Rd –

Jianguo Rd

Day

Night

Jianguo Rd –

Delingha Rd

Day

Night

Delingha Rd

(Qiyi Rd – Bayi Rd)

Day

Night

Bayi Rd

(Delingha Rd –

Huangzhong Rd))

Day

Night

Wuyi Rd Qiyi Rd – Binhenan Rd Day

Night


Changjiang Rd

Day

Night

Changjiang

Rd

Xiguan Av – Wusi Av Day

Night

Wusi Av – Qiyi Rd Day

Night

Qiyi Rd – Binhenan Rd Day

Night

2025 Qiyi Rd Day

150

Forecast

Year Road Sections Periods

Distance from Road Centerline（m）

Changjiang Rd –

Jianguo Rd Night

Jianguo Rd –

Delingha Rd

Day

Night

Delingha Rd


Day

Night

Bayi Rd

(Delingha Rd –

Huangzhong Rd))

Day

Night


Night


Changjiang Rd

Day

Night

Changjiang

Rd


Night


Night


Night

2033

Qiyi Rd

Changjiang Rd –

Jianguo Rd

Day

Night

Jianguo Rd –

Delingha Rd

Day

Night

Delingha Rd


Day

Night

Bayi Rd

(Delingha Rd –

Huangzhong Rd))

Day

Night


Night


Changjiang Rd

Day

Night

Changjiang

Rd


Night


Night


Night

According to the above table, in the absence of building obstructions, noise up-to-standard

distances of category 4a, category 2 and category 1 areas in the short-term, intermediate and

long-term project periods are shown in the following table, for reference of TOD development

layout of land plots on both sides of the urban road.

151

Table 5.2-17 Noise Up-to-Standard Distances of Categories 4a, 2, 1 Criteria

(Distance from Road Borderline）

Road Sections Periods

Noise Up-to-Standard Distances from Road Borderlines（m）

2019 2025 2033

4a 2 1 4a 2 1 4a 2 1

Qiyi Rd

Changjiang Rd –

Jianguo Rd

Day Within the

Borderline <10 41

Within the

Borderline <10 44

Within the

Borderline <10 46

Night <10 14 33 <10 14 36 <10 19 39

Jianguo Rd –

Delingha Rd

Day Within the

Borderline <10

Within the

Borderline 5

Within the

Borderline <10

Night <10 12 <10 14 <10 14

Delingha Rd

(Qiyi Rd – Bayi

Rd)

Day Within the

Borderline <10

Within the

Borderline 3

Within the

Borderline <10

Night Within the

Borderline <10 <10 10 <10 13

Bayi Rd

(Delingha Rd –

Huangzhong Rd))

Day Within the

Borderline <10

Within the

Borderline <10

Within the

Borderline 12

Night <10 13 <10 19 <10 25

Wuyi Rd Qiyi Rd –

Binhenan Rd

Day Within the

Borderline <10 34

Within the

Borderline <10 35

Within the

Borderline <10 36

Night <10 12 29 <10 13 30 <10 14 32


Changjiang Rd

Day Within the

Borderline <10

Within the

Borderline 10

Within the

Borderline 11

Night 6 20 <10 21 <10 23

Changjiang

Rd

Xiguan Av – Wusi

Av

Day Within the

Borderline <10

Within the

Borderline 8

Within the

Borderline <10

Night <10 19 <10 20 <10 21

Wusi Av – Qiyi

Rd

Day Within the

Borderline <10

Within the

Borderline <10

Within the

Borderline <10

Night <10 13 <10 16 <10 18

Qiyi Rd –

Binhenan Rd

Day Within the

Borderline <10

Within the

Borderline 10

Within the

Borderline 11

Night <10 20 <10 20 <10 21

It can be seen from the above forecast results that as the following:

The Qiyi Road (Changjiang Rd - Jianguo Rd): for category 4a, its day up-to-standard distances

in the short-term, intermediate and long-term periods of project operation are all within the road

borderline and its night up-to-standard distances are <10m from the road borderline; for

category 2, its day up-to-standard distances in the short-term, intermediate and long-term

periods of project operation are all <10m, and its night up-to-standard distances are 14m, 16m

and 19m respectively; for category 1, its day up-to-standard distances in the short-term,

intermediate and long-term periods of project operation are 41m, 44m and 46m respectively,

and its night up-to-standard distances are 33m, 36m and 39m respectively.

The Qiyi Road (Jianguo Rd - Delingha Rd): for category 4a, its day up-to-standard distances in

the short-term, intermediate and long-term periods of project operation are all within the road

152




and 15m respectively.

The Delingha Road (Qiyi Rd - Bayi Rd): for category 4a, its day up-to-standard distances in the

short-term, intermediate and long-term periods of project operation are all within the road





The Bayi Road (Delingha Rd - Huangzhong Rd): for category 4a, its day up-to-standard

distances in the short-term, intermediate and long-term periods of project operation are all

within the road borderline and its night up-to-standard distances are <10m from the road

borderline; for category 2, its day up-to-standard distances in the short-term, intermediate and

long-term periods of project operation are <10m, <10m and 12m respectively and its night up-

to-standard distances are 13m, 19m and 25m respectively.

The Wuyi Road (Qiyi Rd - Binhenan Rd): for category 4a, its day up-to-standard distances in

the short-term, intermediate and long-term periods of project operation are all within the road




and 14m respectively; for category 1, its day up-to-standard distances in the short-term,

intermediate and long-term periods of project operation are 34m, 35m and 36m respectively,

and its night up-to-standard distances are 29m, 30m and 32m respectively.

The Xiguan Avenue (Huanghe Rd - Changjiang Rd): for category 4a, its day up-to-standard




long-term periods of project operation are <10m, 10m and 11m respectively and its night up-

to-standard distances are 20m, 21m and 23m respectively.

The Changjiang Road (Xiguan Av - Wusi Av): for category 4a, its day up-to-standard distances




periods of project operation are <10m, 10m and 11m respectively, and its night up-to-standard

distances are 19m, 20m and 21m respectively.

The Changjiang Road (Wusi Avenu - Qiyi Rd): for category 4a, its day up-to-standard distances






The Changjiang Road (Qiyi Rd - Binghenan Rd): for category 4a, its day up-to-standard



153


long-term periods of project operation are <10m, 10m and 11m, and its night up-to-standard

distances are 52m, 55m and 58m respectively.

（2）Forecast of Noise at Sensitive Points

① Implementation Criteria for Noise at Sensitive Points along the Routes

According to the site investigation, sensitive points along the project urban roads are mainly

residential quarters, schools, administrative units and research institutes. According to the

Xining Environmental Functional Zoning (1993) and the Technical Norms for the Acoustic

Environmental Functional Zoning (GB/T15190-2014), within the EIA, on the southern side of

the Qiyi Road (Changjiang Rd - Jianguo Rd), on the eastern side of the Changjiang Road (Qiyi

Rd – Binhenan Rd) and on the eastern and western sides of the Wuyi Road, Category 4a criteria

contained in the Acoustic Environment Quality Criteria (GB3096-2008) shall be applied for

within the range of 50m from the road borderline, whereas Category 1 criteria for beyond the

range of 50m from the road borderline. Also on both sides of the boundary line of other sections

of the Qiyi Road, other sections of the Changjiang Road, the Xiguan Avenue, the Delingha

Road and the Bayi Road, Category 4a criteria contained in the Acoustic Environment Quality

Criteria (GB3096-2008) shall be applied for within the range of35m, whereas Category 1

criteria for beyond the range of 35. When street-side buildings are higher than three-storey or

more buildings, Category 4a criteria contained in the Acoustic Environment Quality Criteria

(GB3096-2008) shall be applied for the side street buildings facing the region from the road

side of this project urban roads to the road borderline, while Category 1 or 2 criteria contained

in the Acoustic Environment Quality Criteria (GB3096-2008) for their back-row buildings. In

addition, according to the Notification on Issues Related to Environmental Noise in

Environmental Impact Assessment for Construction Projects on Highways, Railways (including

Light Rails) (No. Huanfa [2003] 94), for special sensitive buildings such as schools and

hospitals within the scope of evaluation, their outdoor limits shall have such values as 60 dB

(A) during the day and 50 dB (A) at night.

② Selection of Background Values of Environment Noise

In this EIA, representative acoustic environment sensitive points were chosen to monitor noise

status, taking L90 as the background noise value. Without prediction points for environment

status monitoring, according to the field survey, monitoring results of similar areas are taken as

environmental status values. Background Values are obtained by selecting the average of two

monitoring results.

③ Forecast Results at Sensitive Points

A contrastive analysis is made of the current traffic flow data of all newly proposed urban roads

(Table 2.4-3) and the traffic flow forecasting data of different stages of Year 1 (2019), Year 7

(2025) and Year 15 (2033) during the project operation (Table 2.4-5) as indicated in the

Feasibility Study report of the MR project. Based on the analysis, it is found that the Qiyi Road

(Changjiang Road ~ Jianguo Road) has basically reached the saturation of current vehicle traffic

volume. As a result of the reduction of Non-PT traffic lanes on the Qiyi Road (the 4 original

bidirectional lanes has been adjusted to the 4 present bidirectional lanes) after the provision of

dedicated bus lanes, its traffic volume has decreased accordingly. Therefore, the Qiyi Road

(Changjiang Road ~ Jianguo Road) after the completion of the works, the predicted traffic

volume in 2019 during the immediate term will be slightly lower than that of the current vehicle

traffic volume. In 2025 (interim term) and 2033 (long term), their traffic volumes will almost

the same as that of the current one.

154

Along with the decrease of vehicle traffic volume and the improvement of the quality of road

pavement in the immediate term, the noise impact of sound-environment sensitive points along

the roads has been improved recently. In the EIA, for the sensitive points along the Qiyi Road

(Jianguo Road ~ Delingha Road) in the immediate term (2019), the Qiyi Road (Changjiang

Road ~ Jianguo Road) after the project completion in the immediate term (2019), immediate

term (2025) and long term (2033), predicted value = available noise monitoring value - 5 dB

(A) for noise reduction on SMA low noise road surface.

Except for the Qiyi Road (Changjiang Road ~ Jianguo Road), the current traffic volumes of

other urban roads have not reached their designed traffic volume, and the predicted traffic

volume data in near, medium and long terms have increased after the operation of the project.

In the immediate (2019), intermediate (2025) and long-term (2033) periods at different sensitive

points along the routes, noise values are obtained by superimposing the predicted contribution

value of vehicle traffic flow data for all phases of the Feasibility Study report of the MR project

(source strength at the time of prediction takes into account 5 dB (A) noise reduction of SMA

low noise pavement) and background value. Such predicted value obtained, shall be used as

evaluation amount.

The forecast results at sensitive points in the periods of near-term, interim term and long term

are shown in Table 5.2-18.

155

Table 5.2-18 Forecast Results of Acoustic Environment

At Sensitive Points along the Routes during the Project Operation

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value

Long-term Period Intermediate Period Long-term Period

Contribution

Value

Forecast

Value

Over

standard

Value

Increase Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase

D N D N D N D N D N D N D N D N D N D N D N D N D N D N D N

The Qiyi Road Integrated Improvement Work – the Qiyi Road (Changjiang Rd – Jianguo Rd)

1

Datong

Reprehensive

Office (RO) /

Qingmian RC

16/7/1

4a

2

2

Beiyujing

Alley

（No.10,12,

16,14）;

Beiyujing

Alley (No.2)

37/28/22

4a

2

3

Qinghai Public

Health

Vocational

Technology

College

18/9/3

2 (near-

road row-

1)

2

(back-row

teaching

building)

156

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


4

Qingfangting

RC, Wumao

zhongxing RC,

Xinhua shudian

RC, Wuzi

Gongxiao RC

16/7/1

4a

2

5 Zhenghe RC 52/43/37 2

6

Qinghai

Provincial

TCM Hospital

50/41/35 2

7 Hentong

Jiayuan RC 92/83/77 2

8 Zhongyiyuan

RC 17/8/2

4a

1

157

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


9

Jinwei Building

(Xining

Municipal

Economic &

Information

Commission),

Jianhui

Building,

Jingdu

Building

22/13/7 4a

10 Ruiheyuan RC 80/71/65 2

11 Qinghai Xining

Jinbiqu Zone 70/61/55 1

12 Xinming

Jiayuan RC 89/80/74 2

13

Teaching

Building and

Teachers

Household

Building of

63/54/48

2

Teachers

Household

Building

158

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


Xining No.1

middle School 2

(Teaching

Building)

14 Henkji Center 18/9/3 4a

15

Qiyi Road

(No.369) and

Longhang RC,

Qiyi Road

(No.357)

16/7/1 4a

16

Yushu Xining

Banshichu

Shuiwuju RC

52/43/37 4a

17 Qinghai Junqu

Zhaodaisuo RC 81/72/66 2

18

Qinghai Sheng

Junqu Caozi

RC

16/7/1 4a

159

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


2

19

Jingniu RC,

Wuxiandian

Yichang RC

69/60/51 2

20

Shuicheng

Huating RC

(Including

Chengdong

District

Dongguan

Community

public Service

Center)

16/7/1 4a

21 Erjian RC 51/42/36 1

22 Guangji RC 16/7/1

4a

1

160

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


23

Renhang RC,

Qiyi RC

(including

Qisehua

Kindergarten),

Meijia

Huayuan RC

16/7/1

4a

2

24

Qinghai Police

Corps Hospital

of Armed

Forces

16/7/1

2a

(Outpatient

Clinical

Building)

2

(Inpatient

Department

Building)

25 Xining Qiyi

Middle School 80/71/65

2

(Teaching

building)

26 Dongfang

Jiayuan RC 28/19/13 4a

161

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


2

27 Xining Dianli

RC 18/9/3 4a

28

Qinghai

Provincial EP

Institute and its

RC

19/10/4

4a

1

29 Xuefeng

Building 16/7/1 4a

31 Sheng

Bowuyuan RC 58/49/43 1

162

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


32 Shengyuan

Building 35/26/20 4a

33

Longhua

Yayuan RC,

Xiaoquan

Yating RC

36/27/21

4a

2

34 Tielu Anye RC,

Dongyuan RC 50/41/35 1

35 Xiaoquan

Primary School 138/127/123 2

163

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


The Changjiang Road Integrated Improvement Works – the Qiyi Road (Jianguo Rd – Delingha Rd)

36

Qingying

Lingxiucheng

RC

75/66/60 2

37

Qinghai

Gongyi

Meishuchang

RC,

Zhoujiaquan

Xiandaicheng

RC, Qinghai

Tuchan Gongsi

RC

25/16/10

4a

2

38

Qinghai

Shentuchan

RC, Huade

Xingyuan RC

24/15/9

4a

2

164

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


39 Bali RC 137/128/122 2

40 Huaningyuan

RC 18/9/3

4a

2

41 Bajia Alley

(being built) 70/61/55 4a

42 Yicui Huayuan

RC 27/18/12

4a

2

The Qiyi Road Integrated Improvement Works – Delingha Road (Qiyi Rd – Bayi Rd)

43 20/11/5 4a

165

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


Jinfeng

Binheyuan RC

2

44

No.4 Dezhong

Street, Henang

Banshichu RC,

No.92 Bayi

Road

21/12/6 4a

45

Jingsong

shenshi

Tiancheng RC

59/50/44

4a

2

166

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


The Qiyi Road Integrated Improvement Works – the Bayi Road (Delingha Rd – Huangzhong Rd)

46 Gongshangju

RC 46/37/31 2

47

Food & Drugs

Supervision

Administration

22/8/2 4a

48

Wentai RC

(including

Chengdong

District Boli

Kindergarten),

No.63,

Bayizhong Rd

29/15/9

4a

2

49 Chengshanyuan

RC 22/8/2

4a

2

50 Kangyuan RC 60/46/40 2

167

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


51

Bayi Road

Minghang

Primary School

81/57/51 2

52

Youju RC,

Jiedusuo Rc,

Xinhua

Xiechang RC,

Xining Dier

Fuzhangchang

RC

21/7/1

4a

2

53 Longfu RC 30/16/10

4a

2

54 79/65/59 2

168

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


Qinghai

Provincial

Forestry

Bureau and its

Bayi Road

Household

Building

(Office

building)

2

(Household

building)

55

Beiyuan Yishe

RC (being

built)

90/76/70 2

56 Dongrong

Building 32/18/12 4a

57 43 Bayi Road

RC 62/48/42 2

58 Lianyong RC 44/30/24 2

59

Qinghai

Provincial

MCH Hospital

35/21/15 2

169

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


60 Ganxiusuo RC 21/7/1

4a

2

61

Qinghai Meitan

Dizhi 105

Cantandui

Building

23/9/3

4a

2

62

Qinghai Sheng

Meitan Wuce

RC

23/9/3

4a

2

The Wuyi Road Slow-Moving Improvement Works（Qiyi Road – Binhenan Road）

63 66/56/48.5 1

170

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


Qinghai

Provincial

People’s

Congress

64 Qinghai

Shengrenda RC 59/49/41.5 1

65 Jingji Huaying

RC 38/28/20.5

4a

1

66

Taiheyuan RC,

Qinghai Radio

Administration

Commission,

Qinghai Radio

Monitoring

Station

34/24/16.5

4a

1

171

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


67

Xining Wuyi

Cultural Palace,

Mingcuiliu RC

112/102/94.5 1

68 Wuyi Jiayuan

RC 22.5/12.5/5 4a


69 Jianhang RC 54/40.5/32 2

70 Traffic Police

and its RC 18.5/9.5/1 4a

71 Sheng

Jianchayuan 43/34. /30 2

172

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


RC, Lirangjie

RC

72 Ruihuayuan

RC 74/65/61 2

73 Jingfenyuan

RC 61/52/48 2

74

Chengzhong

District Local

Taxation

Bureau and its

RC,

Changjiang

Road (No. 27)

18.5/9.5/1 4a

75 Qinghai Ribao

RC 18.5/9.5/1

4a

1

76

Hydrology

Station and its

RC

19.5/10.5/2 4a

173

No. Names

Nearest

Distance

from

Roadway

Centerline,

Borderline

and Redline

(m) of

Proposed

Roads

Forecast

Point

Function

zones

(Category)

Floor

Standard

Value

Background

Value

Status

Value


Contribution

Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value


Value

Forecast

Value

Over

standard

Value

Increase


1

Notes:

1. Since there were no night duty workers in the Qinghai Xining Jinbiqu Zone, the teaching building of the Xining No.1 Middle School (no accommodation), the

Qinghai Province Food and Drugs Supervision Administration, and the Qinghai Provincial People’s Congress, no night noise predictions were made.

2. D stands for day; N for night.

174

⑤ Analysis of Forecast Results of Sensitive Points

According to Table 5.2-18, the forecast results of environmental noise of sensitive points show

that daytime noise at sensitive spots can all satisfy the requirements regarding their corresponding

criteria as specified in the "Acoustic Environmental Quality Criteria" (GB3096-2008) in the near

term (2019), mid-term (2025) and long term (2033) of the project operation period.

Night Noise: During the project operation period, at most of sensitive points, noise at night along

the urban roads can meet the corresponding standard requirements as indicated in the "Acoustic

Environmental Quality Criteria" (GB3096-2008). at the first row of near-road few sensitive points,

night noise is slightly over standard. According to the statistics, in the near-term (2019) of the

project operation period, for the first row (floor 1) near-Qiyi Road buildings of the Qinghai Public

Health Vocational Technology College, night noise will exceed 2.2 dB (A) ; for the Qinghai MCH

Hospital (Floors 1, 5, 10), night noise will exceed 0.5 ~ 0.8 dB (A). In the long-term (2033) of the

project period, for the Qinghai Public Health Vocational Technology College (near-Qiyi-Road

row-1 buildings), night noise will exceed 2.2 dB (A); for the Qinghai MCH Hospital (Floors 1, 5,

10), night noise will exceed 1.5 ~ 2.1 dB (A); for Ganxiusuo RC (Floors 2,4 of near-road row-1

buildings), night noise will exceed 0.8 ~ 0.9 dB (A); for the Qinghai Shen Meitan Wuce RC (Floor

3 of near-Bayi-Road row-1 buildings), night noise will exceed 0.4 dB (A); and for the Traffic

Police near the Changjiang Road and its RC (Floors 4, 7), night noise will exceed 0.1 ~ 0.6 dB (A).

5.2.3 Impact Analysis of Water Environment

There is no service area and maintenance area in this project, so the project itself does not produce

domestic sewage, but only road surface runoff. When it comes to rainwater pipeline system, the

Wuyi Road under the MR project still utilizes its original rainwater pipeline with no need for

reconstruction, and new rainwater pipelines shall be newly built in the Qiyi Road, the Delingha

Road, the Changjiang Road and the Xiguan Avenue, and the rainwater can be collected and

discharged directly into the Huangshui River. The project areas fall into the service scope of Xining

No. 1 Sewage Treatment Plant in Xining. The sewage along the project urban roads shall be

collected by the municipal sewage pipeline and then discharged into Xining No. 1 Sewage

Treatment Plant.

The main pollution factors of road surface runoff are SS and COD. According to experimental data

of runoff pollution of road surface of relevant line agencies in China, the concentration of

pollutants in the rainwater of pavement undergoes the process of descending from large to small.

the concentration of pollutants reaches the maximum within 0-15 minutes and then decreases

gradually. After the rainfall lasts for 40 minutes , the road surface is basically washed clean, and

the concentration of road surface runoff pollutants is relatively stable at a low level. Under normal

conditions during operation, COD emission intensity and annual pollution load are relatively small,

and pollutants can be basically eliminated by the purification function of the water body. Therefore,

after the completion of this project, rainwater on the road will not obviously affect the water

environment .

However, when vehicles are in poor maintenance condition, when they break down, or when they

have traffic accidents, there is possibility that gasoline and oil may leak into the road surface.

Rainfall runoff may carry them into nearby waters after it rains, causing pollution of petroleum

and COD. Thus it is necessary to take effective traffic management measures to prevent similar

accidents from happening.

For vehicles loaded with toxic and hazardous substances, they may leak or spill the substances on

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the road pavement due to traffic accidents. The wastewater resulting from pavement cleaning

enters land surface water, causing a certain amount of pollution. This project targets the urban

roads, and dangerous goods transportation is not allowed within the range of the urban roads.

Therefore, there is no risk of polluting water body caused by traffic accidents of vehicles loaded

with toxic and hazardous substances in this project.

5.2.4 Impact Analysis of Solid Wastes

During the operation period of urban roads, transport materials scattered by vehicles or spilled by

vehicles due to traffic accidents, rubbish discarded by passengers shall be supervised and cleaned

up through environmental sanitation agencies. After garbage collection, there will be no adverse

impact over the surrounding environment.

Electric buses purchased under the component of public transportation infrastructure are driven by

lithium-ion battery. The resultant used battery shall be returned to electric bus manufacturers for

recycling, which will not adversely affect the surrounding environment.


Located in the built-up areas of the city center, the MR project mainly involves urban landscape

ecology.

The urban landscape is composed of a number of ecosystems centering on the interaction between

people and the environment. After the project operation, as a corridor, it will integrate a large

number of urban basic functional blocks such as a large number of residential areas, commercial

areas, transportation hubs, enterprises and institutions along the line into a more complete

structural system. The project construction will improve the accessibility of landscape function

blocks, which enables the input and output of various ecological flows smoothly, thus ensuring the

efficient operation of the municipality, improving the stability of urban ecological landscape

system and ensuring the healthy development of the city. At the same time, this MR project is a

reconstruction / rehabilitation of the existing urban roads, which minimizes the division of various

functional blocks along the routes. Therefore it does not increase the fragmentation of landscape

along the route.

Both sides of the roads take on a typical urban ecological landscape. A large number of residential

areas, transportation hubs, enterprises and institutions and other functional structures are

distributed along the road routes. However, dense population in the areas along the routes and poor

access to surrounding areas have seriously constrained the flow of people, logistics, energy and

information among the various structures, thus having a certain impact on the stability of landscape

ecological systems along the routes. Road greening and sponge city construction highlights the

characteristics of landscape design and local culture. After the project completion there is basically

no adverse impact over urban landscape. Generally speaking, based on the analysis, there is

relatively small impact of the construction project on the landscape around the urban roads. After

the construction, the rapid restoration of vegetation can reduce the landscape disturbance caused

by the construction project.

5.3 Risk Analysis of Environmental Accidents

This project is designed for the existing urban roads. According to the "Xining Municipality Master

Urban Plan (2001-2020)" (revised in 2015), the land plots along the project urban roads is mainly

used for residential areas, commercial service facilities land, administrative offices, schools and

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scientific research institutes . Transportation of dangerous goods will not be allowed within the

scope of the project roads. Therefore, there is no risk of polluting the water bodies due to traffic

accident risk of vehicles loaded with toxic or hazardous substances.

However, in the process of road transport, poor management, reckless driving of transport

personnel or other reasons may lead to traffic accidents such as collisions and overturning.

Especially in the case of a traffic accident on the Nanchuan River Bridge on the Xiguan Avenue,

there will be water pollution on landscape waters of the Nanchuan River.

Numerous research results show that road pollution mainly come from traffic accidents. When the

road crosses waters or passes through these waters, vehicular accidents may cause pollution to the

water bodies. There are major types of water pollution accidents as follows:

(1) Leakage of gasoline (or diesel oil) and machine oil carried by vehicles themselves and

discharge into nearby water bodies;

(2) Without good management, transport vehicles loaded with chemical dangerous goods may be

illegally transported on the proposed roads. After a traffic accident occurs, chemical dangerous

goods will be leaked and discharged into nearby water bodies;

(3) When a traffic accident occurs on the bridge deck, the vehicle carrying goods crashes into the

water body.

The Xiguan Avenue in the MR project mainly goes across the Nanchuan River, with a river width

of 30m at the bridge and a bridge deck length of 110m long. The traffic accident probability is


4321

1

1 QQQQQPn

i

Where:

P - probability of traffic accidents in predicted annual waterway sections;

Q1 - current probability of a major accident such as collision and crashing in the area; the

probability of a typical traffic accident is 3 times / per million vehicles × km; the

probability of a major traffic accident such as collision and overturn is 0.2 times / per

million vehicles × km; thus it shall be expressed as 0.20;

Q2 - annual absolute traffic volume of forecast year ( million vehicles / year). According to

the traffic volume forecast of this MR project, the traffic volumes in the Years 1, 7, 15

of the project operation are 11.89, 12.73 and 13.85 million vehicles / year respectively;

Q3 - Ratio of trucks of the total traffic volume (%). According to the project traffic flow

forecast, it shall be 2.5%

Q4 –Length of road section over waters, (km); the length of spanning the Nanchuan bridge

shall be 110m.

The calculation results are shown in Table 5.3-1.

Table 5.3-1 Probability of Traffic Accidents of Road Sections over the Nanchuan River of

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the Proposed Road (Unit：Times/Year)

Years Year 1 of

Project Operation

Year 7 of

Project Operation

Year 15 of

Project Operation

Forecast of Probability of Traffic

Accidents（times/year） 0.0065 0.0070 0.0076

According to the prediction results, the probability of traffic accidents at the Nanchuan River

Bridge at the first, seventh and fifteenth years of road operation is 0.0065 times / year, 0.0070

times / year and 0.0076 times / year respectively. It can be seen from the calculation results that

for the bridge road over waters during the operation period, the probability of a transport vehicle

having a major traffic accident that may cause water pollution to is relatively low.

Although the probability of a traffic accident after the completion of the proposed road is extremely

low, such an event of small probability is likely to occur. Once an accident occurs, it will have an

adverse impact on the environment. In order to prevent the risk of pollution arising from traffic

accidents, effective precautionary measures must be taken to prevent risk accidents. For detailed

precautionary measures, see Chapter 6.

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6 Environmental Protection Measures and their Technical and

Economic Rationality

6.1 Environmental Protection Requirements during the Design Period

According to characteristics regarding social environment, natural environment and regional

planning along the proposed project roads, it is necessary to implement the concepts of

environmental awareness and project design of "high commitment, full details, cost-effectiveness

and effective management” in the whole process of project engineering design. Adequate

consideration is given to the requirements with respect to environmental protection and urban

landscape. It is important to take ecological greening as the background, to attach high importance

to ecological protection, and to promote the sustainable development of social economy.

(1) Landscape Design: For urban road greening, it is necessary to initially select camphora,

platycladus, cypress, privet, boxwood and other evergreen species. Plant landscaping can improve

ecological environment of highways, playing a role in cooling air temperature, increasing air

humidity, improving soil vacuuming, etc. on the other hand, it is less affected by landform and

topography, but it can improve them and beautify some unattractive artificial structures, thus

enabling rigid road facilities full of life.

The green space of highways is linear. In the selection of composition elements, there should be

an assurance of a unified sense of coordination of green spaces along the roads. Each road section

should have its own theme or characteristic to enrich its road landscape. It is also necessary to

plant trees, flowers or native species of rich local characteristics, forming a unique local feature.

(2) Before the physical construction, all preparatory work should be done adequately to conduct a

detailed investigation and a better understanding of various pipelines on the roads and in the

underground roads with respect to regional roads, power supply, communications, water supply

and drainage under the project. Emergency responsive preparation shall be done adequately to

ensure that the cut-off of pipes and pipelines when construction is under way will not affect or

destroy municipal facilities involving water supply, power supply, communications and the like.

(3) According to relevant requirements of the "Design Norms for Outdoor Drainage" (GB50014-

2006 (2014 version)) and those of road surface runoff in the sponge city planning, it is proposed

that measures for rainwater collection system of low impact development of (LID) be adopted.

The key measures are as follows:

Road rainwater collection system is an important component of rainwater collection system of low

impact development (LID). LID rainwater collection methods mainly include water seepage

paving, concave green land, ecological grass ditch and stranded ponds. Through these rainwater

collection methods, the urban runoff coefficient and the peak flow of rainwater pipe network are

reduced; and the pollutants contained in the rainwater are greatly reduced, hence the pollution of

rainwater to water system.

① Pedestrian sidewalks shall be provided with permeable pavements, which can effectively reduce

road runoff amount;

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① Tree ponds shall be built with shallow ditches of grass or grate with mangrove barks, slightly

lower than pedestrian sidewalks, making the sidewalks flow into the planting ponds. Through the

combination of underground infiltration, drainage pipes and overflow pipes, the collection and

management of road rainwater can be realized;

③ Non-motorized roadways shall be provided with stanchion in the form of open holes to ensure

that excessive road rainwater can be collected and discharged into green lands smoothly, After

being infiltrated into the sub-grade drainage system, the rainwater can be finally discharged into

rainwater wells;

④ The rainwater on the pedestrian sidewalks and bicycle lanes drains into concave green land

plots along the roads. Their effective volume is used to store the rainwater. The rainwater is

infiltrated into the gravel layer through the infiltration pipe and collected into the storm water

pipeline system through perforated pipes. When it rains heavily, up to a certain level, the rainwater

overflows to the concave intake and runs into the storm water pipeline. The rainwater on the road

first enters into the concave green space, and a large amount of pollutants mixed with the rainwater

will be deposited into the concave green space. On the one hand, the pollutants are degraded and

absorbed by plants and microorganisms in the concave green space, and on the other hand, clearing

up shall be done manually on regular basis;

① rainwater pollutants collected by water seepage pavement and sinking green space will be

greatly reduced. The rainwater can be collected into the rainwater storage ponds (ponds), and be

reused by using pump pressure.

6.2 Related Requirements of Bidding & Tendering for Physical Construction

（1）Bidding Phase

① The preparation of bidding documents should reflect the EIA results of the project, clearly

setting environmental protection targets for all tenders and clarifying responsibilities and

obligations of project contractors with respect to ecological environment protection, soil and water

& soil conservation, population health and environmental improvement.

② It is important to propose concrete environmental protection requirements for construction

organization plans of all tenders, specifically, preparing an implementation plan for environmental

protection, and providing corresponding personnel with environmental background and

environmental protection facilities.

① It is also necessary to standardize the bid preparation and review to ensure that project

contractors can obtain reasonable profits, enabling them to implement environmental protection

plans.

（2）Tendering Phase

① Tendering documents shall respond to requirements of bid invitation documents with respect to

environmental protection issues, formulating the construction organization plans and

implementation measures in line with the requirements of environmental protection, and providing

corresponding environmental protection management personnel and corresponding facilities.

① The price quotation of tendering documents should be based on the investment cost budget

required for rationally formulating and implementing environmental protection management and

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countermeasures according to concrete environment protection requirements of all bidders.

(3) The project contractor shall be highly committed to its responsibility and obligation of

environmental protection, and shall not be allowed to undertake repeated subcontracting and

repeated charging commission fees, but voluntarily supervised by implementing agencies and local

environmental protection units.

（3）Bid Evaluation Phase

① There needs to establish a team of highly competent bid evaluation experts, and attention has

to be paid to the introduction of senior environmental experts to participate in bid evaluations.

(2) It is necessary to carefully review the contents of construction organization plans concerning

environmental protection and constructional civilization, and in particular, to strengthen

examination of environmental protection safeguards and to prevent construction contractors who

intend to win award illegally and arbitrarily lower environmental protection input from becoming

potential award-winners.

6.3 Measures for Prevention & Control of Pollution during the Construction

6.3.1 Measures for Prevention & Control of Atmospheric Environment Pollution

According to the Management Methods on Civilized Construction for Construction Projects in

Xining Municipality, the Regulations on the Prevention and Control of Atmospheric Pollution in

Xining Municipality and the Guidelines for Dust Control on Construction Sites in Xining

Municipality (Reference No. Ningqi Zhiban [2013] 5) as well as the Management Methods for

Urban Building Spoil Transpiration in Qinghai, five “100%s” shall be adequately implemented,

specifically, 100% of building construction sites shall be enclosed; 100% of road pavement on the

construction sites shall be hardened; 100% of earthwork shall be fully covered while not in use;

100% of demolition works shall be given water sprinkling; and 100% of vehicles going out of

construction sites shall have wheels rinsed. In order to do a fine job in addressing the issue of

prevention and control of flying dust at construction sites and in the road transport, the following

measures are developed to reduce the impact of the project construction on the environment. They

are as follows:

（1）Demolition Works

① For the proposed project roads, the scenario of physical construction by road section, halfway

construction and halfway travel shall be adopted. Before original hardened pavement layers are

removed, both sides of the road sections apart from their entrances and exits should be enclosed,

with continuous enclosure settings that are not interrupted or having gaps. their enclosure materials

should be made of hard plate color steel, with brick foundation reinforcement. Their enclosure

shall have a height of not less than 2.5 meters.

② Entrances and exits of demolition works sites should be hardened with concrete, with vehicle

washing facilities. It is necessary to arrange cleaning staff to do washing work on the vehicles

going out of the construction sites. The demolition sites shall be provided with drainage ditches

and sedimentation tanks to ensure that drainage is unobstructed, preventing wastewater from

flowing outside of the demolition work sites.

① When wind speed easily generates flying dust at the above level 4, the demolition unit must

temporarily stop its dismantling work and take effective measures such as wetting to the

dismantling site to prevent the flying dust from scattering.

④ Demolished construction wastes should be cleared up and shipped away in a timely manner.

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If they cannot be timely transported and removed for special reasons and have to be piled up on

the demolition sites temporarily, the matter should be reported in writing to the authorities in

charge of physical construction under the jurisdiction of the construction area for approval. The

construction garbage shall be covered, with a stacking height of lower than the height of the

fencing wall. For those units that have completed the demolition, but not started construction

within 15 days should take measures such as covering and watering to suppressing flying dust. If

one construction unit fails to obtain a construction permit for over six months, dustproof measures

shall be taken on the exposed ground of the demolished site.

① Transport vehicles going in and out of the demolition sites should be kept clean, without carrying

mud on the road and exceeding their rated capacity. Moreover, airtight transport shall be carried

out at low speed so as to ensure that there will b no dust pollution during transport.

(2) Flying Dust from Construction Sites

① Before the commencement of road construction, the construction unit shall set a 2.5m-high

hard enclosure outside the half-width range of the construction road as per standards to carry out

the entire enclosure on the construction site and maintain the enclosure in the construction process;

② At the entrance and exit of the construction site, the person in charge of construction site,

environmental supervisor, dust pollution control measures and whistleblower telephone number

should be publicized;

③ The earthwork temporarily stored in the ditch excavation shall be given covering measures,

and the excess earthwork shall be promptly cleared up and transported to designated building

garbage landfill sites after constructional backfilling;

① When Level IV or more wind blows or the heavily windy weather occurs, earthwork shall be

stopped and at the same time covered in the operating area;

⑤ Water sprinkling shall be carried out 4-5 times a day at the construction site on an irregular

basis;

① Exposed surface areas shall be provided with ground compaction, covering or temporary

greening and other dust-proof treatment measures. Construction wastes and spoils must be timely

cleared up. For those that cannot be treated temporary, they shall be treated with covering measures.

（3）Flying Dust from Transport Vehicles

① Vehicle-washing platform shall be set at the entrance and exit of the construction site, and 100%

of the vehicle bodies on the construction site are rinsed;

① Construction site entrances and exits shall given full hardening of pavement;

① Vehicles transporting construction spoil vehicles should be of specific operating vehicle type or

in airtight, anti-spill, anti-flying condition, and up to standard in terms of motor vehicle noise and

exhaust pollution control.

① Construction sites shall be cleaned from time to time so as to enable construction roads and the

roads within 100 meter of their entrances and exits not to retain soil and construction wastes.

(4) Temporary Construction Site

① Temporary construction sites shall achieve full hardening;

① 100% of temporarily unused building materials (like cement, sand, etc.) shall be given shielding

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or covering;

① Construction sites shall be cleaned from time to time and be given water sprinkling to suppress

flying dust.

① Road drainage pipes and common utility tunnels are constructed by road sections. Excavated

earthwork is temporarily piled on one side of pipeline ditch but it should be given covering

measures. After construction backfilling, excessive earthwork is timely cleared up and shipped to

the designated construction waste landfill.

After taking the above measures, it is possible to greatly reduce the impact of construction dust on

the surrounding environment.

6.3.2 Water Environment Protection Measures

During the construction period, the construction unit should strictly organize and construct within

the prescribed scope so as to minimize the occupied water area and make civilized construction.

At the same time, the construction unit should organize the design of wastewater discharge and

strictly prohibit random discharge and pollution to pollute the environment. Specific measures are

as follows:

(1) Prevention & Control Measures for Bridge Construction Across the River

① The construction unit needs to strengthen the protection before the old Nanchuan River Bridge

is demolished, so that it can be safely closed and prevented from dismantling the construction

waste into the Nanchuan River. The bridge demolition work must be strictly carried out according

to rules and behaviors of civilized construction. The building garbage resulting from the bridge

demolition shall be removed and transported to the designated construction waste disposal site, so

as not to cause any possible pollution by rolling into the Nanchuan River landscape water body.

② It is necessary to reasonably arrange the construction schedule. For the bridge construction,

the timing of the lower foundation construction should be selected during the dry period.

Drilling slag and muck from bridge foundation shall not be discarded into the river or piled up

arbitrarily. They should be cleared up and transported in time, and no river blockage should happen

so as to avoid the impact on the water body of the Nanchuan River.

③ There should be strict inspection of construction machinery to prevent water body pollution by

leakage of oil. Mechanical or vehicular maintenance and cleaning points shall not be set up near

the river.

④ The construction materials should not be piled up near surface water bodies and should be

provided with temporarily concealed canvas. There is need to take necessary measures to prevent

soil and bulk construction materials from entering the Nanchuan River with the flow of rainwater

to affect its water quality.

⑤ Bridge Construction Mud to Be Processed: Mud ponds shall be well arranged before drilling

(It is proposed to use mobile steel boxes), while drilling, mud circulation is done for wall

consolidation; in the circulation course, earth and rock are brought into the mud pool for

sedimentation, and the mud after the sedimentation is recycled. At the same time, the

sedimentation tank should be cleaned regularly. The mud that cannot be used shall be transported

to the designated place uniformly, and it should not be disposed of at will to avoid the formation

of local water and soil loss and the increase of suspended matter concentration in the water body.

① For domestic rubbish and construction rubbish, since they cause water body pollution, it is

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required that they be uniformly collected for recycling classification, storage and disposal. For

those materials available, they need to be mainly used or submitted for acquisition, for example,

most of trash made of paper, wood, metal or glass can be acquired by recycling stations; for those

that cannot be acquired for recycling should be properly and harmlessly disposed of by sanitation

units .

① It is necessary to launch water environmental protection education campaigns so that

constructional workers can understand the importance of water environment protection;

⑧It is important to implement environmental supervision during the construction period. Focus is

on environmental supervision of dismantling and reconstruction of the Nanchuan River bridge to

ensure that there be civilized construction of the workers and that the construction site stay as far

as possible away from the water body and to ban domestic sewage and construction wastewater

from being discharged into the Nanchuan River so as to avoid pollution .

(2) Measures for Domestic Sewage Treatment

The project is located in the urban area of the Xining City. According to the characteristics of social

environment along the project, the drainage status along the roads is in the charge of Xining No. 1

Sewage Treatment Plant. The construction sites shall be provided with septic tanks and drainage

pipelines for constructional purpose, which can be linked with the municipal sewage pipeline

system. The living sewage after entering the municipal sewage pipeline system through the

septic tanks can be discharges into Xining No.1 Sewage Treatment Plant in Xining for treatment.

(3) Measures for Construction Wastewater Treatment

Construction wastewater largely consists of mechanical and vehicular wastewaters. The EIA

requires that temporary sedimentation tanks, grease traps be built in temporary working sites. after

entering the temporary sedimentation tanks through grease separation, the equipment flushing

water will be treated there. After more than 12 hours of sedimentation treatment, the main pollutant

SS in the wastewater can be reduced to less than 200 mg/L, which can be recycled. For example,

it can be used for equipment flushing as well as water sprinkling for dust suppression. It is noted

that discharging the wastewater into the Nanchuan River and the Huangshui River shall be banned,

that is, the construction wastewater discharge shall be strictly controlled so as to avoid local water

pollution problems.

6.3.3 Measures for Acoustic Environment Protection

The forecast results show that the noise generated during the construction of the project partially

exceeds the requirements of the Emission Criteria for Environmental Noise of Boundaries of

Building Construction Sites. Although the construction operation noise is unavoidable, in order to

reduce the noise impact on the surrounding environment, the implementing and construction units

shall standardize constructional activities as specified in the "Regulations on Prevention & Control

of Environmental Noise Pollution of the People's Republic of China". Prior to the startup of the

project construction, the construction unit shall declare project name, construction site and period,

possible environmental noise value and the noise pollution prevention and control measures taken

to the project area and corresponding prevention & control of environmental protection measures

to be taken, to the project location district and its authorities of environment protection. In addition,

it is recommended that the construction unit, appropriate measures be taken to reduce the noise

pollution generated from the following aspects:

（1）Noise of Road Construction

① Low-noise equipment and processes shall be selected in line with national criteria to

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fundamentally reduce source intensity. It is necessary to strengthen inspection and maintenance of

machinery and equipment. The overall equipment should be kept stable to maintain good contact

with the ground. With good sources, the construction unit can use vibration-reducing machinery

base to reduce noise pollution;

① In terms of optimization of construction layout, high-noise construction sites shall stay as far as

possible away from sensitive points. It is wise not to arrange a number of power machinery and

equipment at the same location to avoid extremely high local noise so as to reduce noise from the

sound source;

① It is important to strengthen operational noise control by reasonably arranging construction

timing. According to the “Management Methods for Civilized Construction for Construction

Projects in Xining Municipality", in the concentrated areas of noise-sensitive urban buildings, it is

prohibited to undertake night operations leading to environmental noise pollution". Given that a

number of acoustic environment sensitive points are densely distributed along the urban roads, the

project construction shall be arranged in the daytime period (8:00 am -22:00 pm) instead of nigh

period (22:00 pm -6: 00 am);

① The project shall be of half-way construction by road section, with enclosed fences in the

construction road sections. The enclosed enclosure shall be made of hard-quality materials such as

color steel plates, with a height of less than 2.5 meters. The enclosure helps to reduce the impact

of construction on the surrounding sensitive targets of acoustic environment protection.

(2) Noise of Temporary Integrated Construction Sites

① Temporary construction sites should be kept away from sensitive areas such as residential areas,

hospitals and schools;

① For construction machinery in the integrated construction sites, simultaneous construction of

high-noise equipment shall be avoided as far as possible;

① For fixed equipment, it is necessary to set up simple enclosure to make sure that it can be closed

or semi-enclosed place while working.

(3) Noise of Transport Vehicles

① Vehicles transporting construction muck or slag shall be of special operation type with airtight,

anti-leakage and anti-flying conditions and shall comply with the standards for motor vehicle noise

and exhaust gas pollution control.

① The existing roads in the project area will be used for transporting construction materials during

the project construction period. Care should be taken to arrange the transportation timing of

construction materials reasonably. In the vicinity of the road sections with urban residential

compounds, it is required that vehicle travel be slowed down, with no whistling or horning.

(4) Other Measures for Prevention & Control of Noise

① Steel pipes, models and other structural parts shall be handled carefully and properly, with no

throwing;

① Commercial concrete shall be used so as to avoid the generation of on-site production noise.

③ It is necessary to strengthen construction management of intersecting road sections by

formulating detailed construction management plans.

④ The supervising unit shall do a good job of noise supervision during the construction period,

by improving construction management. A certain number of noise measuring instruments shall

be equipped with to monitor residential compounds near construction sites to ensure that the they

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will not be affected by over-standard noise pollution.

With the above measures taken, the noise in the project construction period will be effectively

controlled. The adverse impacts of construction noise on the surrounding environment is

temporary and short-term. With the completion of the project construction, the construction noise

will disappear.

6.3.4 Measures for Solid Wastes

Solid wastes in the project construction period mainly consist of abandoned earthwork and living

garbage of construction workers. The proposed environmental protection measures for solid

wastes include:

(1) Abandoned earthwork mainly includes removed original pavement slag, residual earthwork

after ditch excavation and rational utilization, and bridge foundation drilling slag. The abandoned

spoils or slag under the MR project is proposed to be shipped uniformly to the commercial slag

disposal site of the Zhengjuan Company at the Najia Mountain for disposal.

(2) Domestic rubbish shall be regularly handed over to the sanitation unit for disposal after being

classified and collected.

(3) For the facilities, equipment and sites for collecting, storing and transporting solid wastes

management and maintenance shall be strengthened so as to ensure their normal operation and use.

It is not allowed to discard and scatter solid wastes along the way in the course of transportation.

6.3.5 Ecological Protection Measures

(1) The flowers and trees along the urban roads need doing a good job of transplanting protection.

It is necessary that they not be destroyed for new afforestation, but be removed for temporary

transplanting purpose. According to the project design, it is better to carry out make-up replanting.

In the construction process, care should be taken to protect vegetation like trees and green land in

adjacent areas.

(2) During the construction period, the road construction should be carried out within the red line

as far as possible. The material stacking and spoil storage sites shall be set up within the permanent

land occupation area, with no spoils or materials piled up occupying nearby areas.

(3) During the construction period, for large amounts of trash accumulation resulting from the

breaking up of road pavement, there should be an orderly section by section construction, with

proper enclosure. Meanwhile, the resultant spoils should be cleared up and transported to the

designated commercial spoil disposal site in a timely manner to avoid forming a phenomenon of

disorderly and unattractive landscape.

(4) It is necessary to do a good job in the rational allocation of earthwork for excavation and

backfilling. Protective measures shall be taken for temporary storage of abandoned spoils. There

is a need to prevent excavation and filling of earthwork during rainfall to prevent rainwater

flushing from causing soil erosion, water body pollution and blockage of drainage pipes.

Abandoned soil surface should be rammed, with bagging block for temporary soil storage.

Meanwhile, they should be covered by ecotextile materials. Drainage ditches are set around the

temporary spoil points. Rainwater enters the grit-sinking ground through the drainage ditches. The

rainwater can be discharged into the municipal pipeline system after being grit-grounded.

(5) Under the premise of meeting the requirements of project construction, it is wise to save land

occupation as much as possible and make reasonable arrangements for construction progress. After

the project is completed, the construction sites should be timely cleared up, leaving the occupied

sites empty and restoring the original roads and greening space.

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6.4 Measures of Prevention & Control during the Project Operation

6.4.1 Measures for Prevention & Control of Atmospheric Environment

The EIA report recommends adopting the following measures to further reduce the impact of waste

gases on the surrounding environment during the project period.

(1) Prohibiting Traveling of Vehicles with Over-standard Emission of Exhaust Pollutants

In order to reduce exhaust pollutants emission of motor vehicles, urban traffic control authorities

shall carry out the system of exhaust emission of vehicles to prohibit the travel of vehicles

exceeding the emission limit. All vehicles with over-standard emission of exhaust gases shall be

banned on the urban roads.

(2) Strengthening Inspection and Maintenance of Motor Vehicles

Exhaust pollutants emission of motor vehicles is highly correlated with sound operation of vehicle

engines. Over-standard exhaust emission of the motor vehicles is a result of such factors as low

level of maintenance and technical deterioration of engines. When the motor vehicles use unleaded

and installing exhaust purifiers, it becomes even more important to carry out inspection and

maintenance. Therefore, it is important to strengthen vehicular inspection and maintenance so that

they can be kept in good condition more often so as to reduce the emission of exhaust pollutants.

(3) Keeping the Roads Clean, Timely Watering and Road Dust Reduction

As road dust comes from dust particles fallen onto the road pavement, reducing these dust particles

means reducing the source intensity of pollution.

(4) Taking Advantage of Vegetation for Air Purification

Experiments show that broad-leaved arbors on both sides of the roads have certain dust-proof and

pollutant-purifying effects. The construction unit should carry out afforestation on both sides of

the roads according to the provisions of the "Regulations on Urban Afforestation Management in

Xining Municipality" to make full use of vegetation for ambient air purification.

(5) Intensifying Efforts of Environmental Management. Road Environment Authorities shall set

up an environmental management agency that can entrust the EP department to conduct regular

environmental air monitoring at the designated monitoring points as specified in the EIA.

6.4.2 Measures of Prevention & Control of Acoustic Environment Impacts

During the project operation, a series of measures must be taken to ensure a good acoustic

environment on both sides of the urban roads, including measures for engineering control itself,

planning and planned control requirements for the construction along the routes, self control

measures at environmentally sensitive sites at a later stage, etc.

Self Engineering Control Measures

(1) Road maintenance should be strengthened to ensure the leveling of road pavement, so that the

increase of traffic noise caused by vehicle jolting and bumping due to poor road conditions can be

avoided;

187

(2) Motor vehicles on the roads are ensured to be in good operation condition. The management

and maintenance of motor vehicles should be strengthened to ban unqualified vehicles from getting

on the roads. In particular, heavy-duty trucks on the roads have the most serious noise pollution.

It is suggested to implement the management of limited trips of yellow-labeled vehicles.

(3) Speed limit signs and intersectional traffic lights will be set up for nearby road sections near

the sensitive points such as horizontal crossings, residential areas, schools and hospitals along the

routes to ensure sound vehicle driving, with no horning.

(4) Afforestation should be carried out along the roads. For tree species, it is better to select

evergreen tree species with relatively large canopy and leaf area. And low shrubs should be planted

near the tree species to effectively reduce traffic noise. According to related researches, greening

for noise reduction mainly involves the effects of reflection and absorption on sound waves.

Vegetation itself is a kind of porous material that has a certain sound absorption function, which

can reduce the energy of sound waves, hence the role of noise reduction. The project can construct

artificial topographical spots for noise reduction under available favorable conditions. Planting

tree species shall adopt the dual layer structure of arbors, shrubs and grasses so as to achieve good

effects of sound insulation and noise reduction.

Strengthening Rational Planning and Building Layout along the Road Routes

Based on the forecast results, in the absence of building obstructions, noise up-to-standard

distances of categories 4a, 2 and 1 areas in the short-term, intermediate and long-term project

periods are shown in Table 5.2-17.

According to the above road noise up-to-standard distance, the EIA puts forward the corresponding

requirements regarding noise protection distance. Without noise prevention and control measures,

within the above range of up-to-standard distances corresponding to the criteria of Category 4a,

Category 2 and Category 1, it is not appropriate to newly build schools, hospitals, governmental

institutions, nursing homes and residential compounds and other sensitive buildings. In the

meanwhile, reasonable planning and building layout along the roads should be strengthened, and

the construction planning authorities should reasonably plan the areas on both sides so as to avoid

planning concentrated sensitive points such as residential areas, hospitals and schools within the

noise up-to-standard distances. When the new construction of above sensitive points with the noise

up-to-standard distances is necessary, it is ordered that the construction unit take sound building

insulation or other noise reduction measures according to the national laws and regulations on

environmental noise in order to make indoor environment meet functional requirements. In the

meantime, for buildings of no noise sensitive types such as shops, production and office buildings,

commercial buildings, the noise up-to-standard distances of back-row buildings will be shortened

due to the blockage effect of these buildings.

Scenario of Noise Prevention & Control at Sensitive Points

According to Table 5.2-18 (Analysis of Forecast Results of Environmental Noise at Sensitive

Points), in using SMA asphalt concrete low-noise road pavement, during the immediate (2019),

midterm (2025) and long-term (2033) periods of project operation, daytime noise at all sensitive

points can meet the requirements of criteria as specified in the "Acoustic Environmental Quality

Criteria" (GB3096-2008). At most sensitive points along the urban roads, noise at night can meet

the corresponding standard requirements of the "Acoustic Environmental Quality Criteria"

(GB3096-2008).

188

A limited number of near-road row-1 sensitive points along the urban roads are slightly over

standard at night. According to the statistics, in the immediate period of project operation (2019),

they are as follows: near-Qiyi-Rd row-1 building (floor 1) of Qinghai Public Health Vocational

Technology College (over-standard 2.2 dB at night); in the midterm period of project operation

(2025), near-Qiyi-Rd row-1 building (floor 1) of Qinghai Public Health Vocational Technology

College (over-standard 2.2 dB at night), the building (floors 1,5,7) of the Qinghai MCH Hospital

(over-standard 0.5-0.8 dB (A) at night); in the long-term period of project operation (2033), near-

Qiyi-Rd row-1 building (floor 1) of Qinghai Public Health Vocational Technology College (over-

standard 2.2 dB at night), the building (floors 1,5,7) of the Qinghai MCH Hospital (over-standard

1.5-2.1 dB (A) at night), near-road row-1 (floors 2, 4) of Ganxiusuo RC (over-standard 0.8-0.9

dB(A) at night), near-Bayi Rd row-1 building (floor 3) of Shen Meitan Wuce RC (over-standard

0.4 dB(A) at night), the near-Changjiang-Rd building (floors 4, 7) of Jiaojindui and its RC (over-

standard 0.1-0.6 dB(A) at night).

The MR project involves the existing primary trunk urban roads and secondary trunk urban roads

in the city. At the time of prediction, no consideration was given to the noise reduction of noise-

insulating windows. Based on the later field investigation, it was found that all the sensitive points

of the project have been installed with double-layer insulating window glass, which can have a

noise reduction of 20dB (A) or so. During the mid-term project operation, the night over-standard

value at night is 0.5-2.2dB (A). Taking into account the sound insulation of double-glazed

soundproof windows of existing sensitive buildings, the indoor noise at each sensitive point can

meet the requirements regarding limit values as specified in the "Sound Design Codes for Civil

Buildings "(GB50118-2010). Therefore, the project operation has less effect on the acoustic

environment sensitive points on both sides of the roads.

6.4.3 Measures of Prevention & Control of Water Environment Pollution

(1) Sewage from the road sections of this project falls into the service scope of the Xining No. 1

Sewage Treatment Plant. The sewage along the roads is discharged into the municipal sewage

pipeline system through sewer pipes and finally run into the Xining No. 1 Sewage Treatment Plant.

The rainwater from the roads is discharged into the Huangshui River through the rainwater pipeline.

Under normal circumstances, the content of runoff rainfall pollutants is low, which will not have

a significant impact on the water environment.

(2) It is necessary to regularly check and clear the rainwater drainage system to ensure smooth

flow, and to maintain drainage facilities along the lines.

(3) In order to protect the surrounding Nanchuan River and other water bodies, water pollution

and traffic accidents caused by oil leakage and cargo dropping of vehicles should be prevented and

controlled. On the bridge decks and abutments across the Nanchuan River shall be provided with

warning signs like “cautious driving” and “slow down”. It is appropriate to strengthen the crash

barrier design to prevent vehicles from crashing into the water.

6.4.4 Disposal of Solid Wastes

(1) Garbage bins along the roads are set to collect solid wastes. It is necessary to strengthen

cleaning by regularly sending them to urban garbage disposal sites for treatment.

(2) The electric buses procured under this MR project are driven by lithium-ion battery, and the

used battery generated shall be returned to electric bus manufacturers for disposal.

189

6.5 Precaution Measures for Road Risk Accidents

6.5.1 Engineering Measures

(1) Warning signs shall be set at Nanchuanhe Bridge involving the MR project, with the words of

"Driving with Caution on the Road Section over Waters", "No Overtaking at the Bridge Ahead"

and of speed limit, etc., requiring slow-down and indicating emergency police calls at the time of

risk accident.

(2) It is essential to improve the anti-collision design level of the bridge by strengthening its crash

barrier design so as to meet strength requirements of preventing the accidental vehicle from

crashing into the water body.

6.5.2 Management Measures

(1) In the process of road transportation, it is necessary to strengthen traffic management along the

routes by setting necessary speed limits and road signs, and carrying out traffic safety inspection

from time to time to reduce traffic accidents.

(2) Risk Safeguards for Transportation of Dangerous Goods

This project is an improvement and expansion of the existing urban roads. According to the "Xining

Municipality Master Urban Plan (2001-2020)" (amended in 2015), the land use of the project

urban roads mainly involve residential areas, commercial service facilities, administrative offices,

schools and scientific research institutes. With the scope of the project urban roads, transportation

of dangerous goods are banned. Under special circumstances, where it is indeed necessary to

transport dangerous goods on the urban road sections, effective measures shall be taken as follows:

① Reporting shall be made to such agencies as local public security bureaus and environmental

protection departments by developing a risk plan for transportation of dangerous goods.

① The public security bureaus shall enforce traffic control when necessary. As required by the

public security bureau, the vehicles carrying dangerous goods can pass through the road sections

according to the designated traveling timing.

① Transport vehicles shall strictly observe relevant stipulations of the "Regulations on the Safe

Management of Chemical Dangerous Goods".

6.6 Environment Protection Acceptance of Project Completion

According to the former State Environment Protection Administration Order No. 13 entitled

"Management Methods for Environmental Protection Acceptance of Construction Project

Completion" (issued on December 27, 2001, implemented on February 1, 2002) as well as the

Ministry of Communications in Year 2003 Order No.5 entitled "Management Methods for

Environment Protection of Transport Construction Projects", "Three Simultaneous Steps" shall be

implemented in terms of project construction and environmental protection (EP) and acceptance

of environmental protection facilities shall be applied for within 3 months of project handover.

The Consolidated Summary of "Three Simultaneous Steps" of EP as well as EP Acceptance of

Project Completion is shown in Table 6.6-1.

190

Table 6.6-1 Consolidated Summary of EP Acceptance of Project Completion

No. Components Major Activities to Be Accepted Remarks

I. Institutional Setup

A corresponding EIA agency has been set up according

to the EIA report and relevant administrative

requirements;

Prepared by the

Project owner when

submitting the

application for

acceptance;

II. Bidding and Tendering Documents Contracts of works construction and facilities

procurement shall include relevant EP stipulations;

III. Dynamic Monitoring Data Environmental monitoring report

during the construction;

IV. Environmental Supervision

during the Construction

Environmental supervision report

during the construction;

V. Test-run of EP Facilities Report of EP facilities test-run

during the test-run period;

VI.

Chart of EP Facilities EP facilities identified

in the project design as well as the EIA;

Concrete Measures Quantities

Amount

(0,000

Yuan)

Expected Results Remarks

Ecological

Protection &

Rehabilitation

Greening Belts & Sidewalk Trees

19319m² of

greening belts,

2409

sidewalk trees

495.28

Reducing the impact on the

surrounding ecological

environment;

Included in the

project investment

Prevention &

Control of Noise

Construction

Period

① Selection of low noise equipment;

② Maintenance of construction ma

chinery;

③ Control of construction timing,

with no night working （22:00 – 06:

00）;

/ 20

Complying with the Criteri

a of Ambient Noise Trans

mission for Building cons

truction Sites (GB12523-2

011);

Analogous

estimation

Operation

Period

① Using SMA low noise pavemen

t; 150000m² 600

Predicted values of acoustic e

nvironment at sensitive points

can satisfy the limit require

ments of Criteria for Acousti

c Environment Quality（GB3

096-2008）and the Criteria o

f Sound Insulation Design of

Civil Building（GB50118-201

0）

Analogous

estimation

② Slow-down, no horning and oth

er signs; / 20

Included in the

project investment

Prevention &

Control of Water

Pollution

Construction

Period

① While building camp houses, it

is necessary to build counterpart sept

ic banks and drainage pipes connecte

d with the municipal drainage pipeli

ne. Finally, the living sewage will b

e discharged through the pipeline int

o the Xining No. 1 Sewage Treatme

nt Plant;

② Construction wastewater can be

reused after treatment in grease and

sedimentation ponds, with no drainag

e;

③ For the foundation construction

of the Nanchuan River Bridge, mud

ponds shall be set;

/ 30

Reducing the impact of

production wastewater on

water environment;

Analogous

estimation

Prevention & C

ontrol of Atmo

spheric Pollutio

n

Construction

Period

① Water sprinkling shall be done

for dust suppression near environmen

tal points and construction sites;

② Transporting earthwork and mat

erials shall be transported in an airti

ght way;

③ Covering measures shall be ado

pted for dust-borne materials like ear

thwork, cement, lime and sands;

④ Transport vehicles going in and

out shall be rinsed by water;

⑤ Construction sites shall be buil

/ 45

Comply with Level II

standards of the Criteria of

Environmental Air Quality

（GB3095-2012）

Analogous

estimation

191

t, with a height of no less than 2.5

m of enclosure;

Collection of

Solid

Wastes

Construction

Period

Disposing of abandoned spoil and bu

ilding garbage; 132400m³ 79.1 Zero Transmission

Included in the

project investment

Operation

Period

① Garbage bins shall be set along

the routes;

② For electric buses, their used lit

hium ion battery shall be returned to

their manufacturers for disposal.

/ 10 Unified collection and

disposal

Included in the

project investment

Environment

Risk

Warning signs regarding speed limit shall be set at

the Nanchuan River Bridge; 2 points 4

Reducing water pollution

caused by traffic accidents.

Included in the

project investment

192

7 Analysis of Economic Gains / Losses of Environment Impacts

7.1 Investment Estimation of Environmental Protection

EP investment includes costs of EP facilities, equipment and environment monitoring, as shown

in Table 7.1-1.

Table 7.1-1 Direct Costs Estimation of EP Measures

No. EP Measures Units Quantities

Total Price

(o,ooo

Yuan)

Remarks Explanations

Part I Environmental Monitoring /

1 Environmental Monitoring During the Construction 1 10 Construction period

(16 months) ;

Newly added

in the EIA

2 Environmental Monitoring of Project Completion Acceptance 1 15 / Newly added

in the EIA

Part II EP Measures /

1

Ecological

Protection

Measures

Greening Belts and Sidewalk Trees

Greening

Belts

19319m²，Sidewalk

Trees (2409

trees)

495.28

Reducing the impact

on the surrounding

ecological

environment;

Included in

the project

investment

2

Prevention &

Control of

Water

Pollution

① Living sewage shall be discharged into the

municipal sewage pipeline system after

treatment in septic ponds;

② Construction wastewater can be reused after

treatment in grease and sedimentation ponds,

with no drainage;

③ For the foundation construction of the

Nanchuan River Bridge, mud ponds shall be

set;

/ / 30

Reducing the impact

on the surrounding

water environment;

Newly added

in the EIA

3

Prevention &

Control of

Atmospheric

Environment

Pollution

① Water sprinkling shall be done for dust

suppression on construction sites,

construction camps and transportation roads;

② Earthwork and materials shall be shipped in

a sealed way;

③ Covering measures shall be adopted for dust-

borne materials like earthwork, cement, lime

and sands;

④ Transport vehicles going in and out shall be

rinsed by water;

⑤ Construction sites shall be built with

enclosure;

/ / 45

Not affected silty

mud pollution at

sensitive points;

Newly added

in the EIA

4

Prevention &

Control of

Noise

Pollution

Construction Period Maintenance of

construction Machinery 1 20 /

Newly added

in the EIA

Operation Period

Use of SMA low-noise

Pavement m² 150000m² 600

Predicted values of

acoustic environment at

sensitive points can

satisfy the limit

requirements of Criteria

for Acoustic Environment

Quality（GB3096-

2008）and the Criteria

of Sound Insulation

Design of Civil Building

（GB50118-2010）

Newly added

in the EIA

Signs like speed limit and

no horning / / 20

Included in

the project

investment

193

5 Collection of

Solid Wastes

Disposing of abandoned spoil and building g

arbage; 132400m³ 79.1 Zero Transmission

Included in

the project

investment

③ Garbage bins shall be set along the rout

es;

④ For electric buses, their used lithium io

n battery shall be returned to their manufact

urers for disposal.

/ 10 Unified collection and

disposal

Included in

the project

investment

6 Environmental

Risk Warning signs regarding speed limit shall be set

at the Nanchuan River Bridge; Points 2 4

Reducing water

pollution caused by

traffic accidents.

Included in

the project

investment

Part III Environmental Management 14

Training for Environmental Management Staff

during the Construction 4

Environmental Supervision Cost during the Construction 10

Total Investment of EP 1342.38 /

The project has a total investment of 687.7761 million Yuan. A series of effective protective

measures have been taken for the environment in order to achieve the harmony between economic

construction and environmental protection. The direct environmental investment of the project is

initially estimated at 13.4238 million Yuan, accounting for 1.95% of the total investment in the

project.

7.2 Project Environmental Losses

The environmental losses caused by the project are mainly manifested in environmental impacts

generated during the construction period. During the project construction, ambient air and acoustic

environment in the construction areas will be affected, but they are relatively short and can be

mitigated after effective EP measures are taken.

In addition, the project construction shall bring about good environmental benefits, mainly in the

following two aspects:

(1) The improvement of road pavement quality can alleviate noise and dust pollution caused by

bad traffic conditions to some extent;

(2) It can improve the situation of limited lanes, uncontinuous lane size and traffic congestion at

peak hours;

(3) After the completion of the project, the newly-added green road area can compensate for the

ecological loss due to the project construction to a certain extent. The road greening also has the

environmental effects of beautifying the environment, restraining and absorbing dust, exhaust gas

and increasing oxygen.

7.3 Analysis of Social Benefits

The direct and indirect economic and social benefits produced under the MR project are as follows:

(1) Speeding up the urban construction of Xining Municipality;

(2) Improving traffic order in the Xining City, thus meeting the ever-increasing travel needs of

people;

(3) Improving the city’s appearance, thus enhancing the city’s image;

(4) Reducing traffic accidents, thus producing corresponding benefits.

(5) Increasing land value: The project construction can improve traffic conditions along the routes,

194

living conditions of residents and the urban investment environment, and develop and utilize the

limited land resources rationally. In terms of land use value, it will bring huge value-added benefits

of land resources .

7.4 Summary

During the project construction, the ambient air and acoustic environment in the construction area

will be affected, but their impacts are relatively short and can be mitigated after taking effective

environmental protection measures. The impacts on the atmospheric and acoustic environments

shall be alleviated by effective environmental protection measures to be taken. The direct EP

investment under the MR project shall be 13.4238 million Yuan, accounting for 1.95% of the total

investment according to the initial cost estimation.

The project implementation is meant to improve the traffic service level to meet traffic demands,

to further optimize the urban road transport network, and to help speed up the regional construction

and development. In short, the project construction will rationalize urban functions, thus producing

better social and environmental benefits.

8 Environmental Management & Monitoring Plan

In order to protect the environment along the project urban roads and to ensure that various adverse

environmental impacts of the project are effectively controlled and mitigated, the construction

process must be strictly and scientifically followed up, with environmental management and

monitoring activities being implemented.

8.1 Environment Management

8.1.1 Environment Management Agencies

The project management office (PMO) under the Xining Municipal Construction Commission

shall be responsible for the project environmental management. Specifically, the PMO is

responsible for formulating project environmental protection work plans, coordinating

environmental management among authorities and construction units, guiding the construction

units in implementing various management measures, for implementation and management of

environmental actions during the construction period, and for organizing the feasibility study of

project construction, developing environmental protection plans and implementing environmental

management during the design phase.

The Project Coordinating Offices / the Project Management Offices (PMO) under the Xining

Municipal Construction Commission, the Xining Traffic Investment Company, the Xining Bus

Company, the Xining Municipal Public Security Bureau and the Xining Municipal Traffic Bureau

shall be responsible for the implementation and management of environmental protection

measures during the operation period.

8.1.2 Environmental Supervision Agencies

The environmental supervision agencies of this project are the Xining Municipal Environmental

Protection Bureau, the Chengzhong District Environmental Protection Bureau, the Chengdong

District Environmental Protection Bureau and the Chengxi District Environmental Protection

Bureau. Supervision activities shall be carried out in phases:

195

(1) Feasibility Study Phase: The feasibility study will be in the charge of the World Bank, the

Xining Municipal Environmental Protection Bureau, the Chengzhong District Environmental

Protection Bureau, the Chengdong District Environmental Protection Bureau and Chengxi District

Environmental Protection Bureau. The Xining Municipal Environmental Protection Bureau shall

take overall responsibility for the project environmental management and review and approve the

EIA report. The Chengzhong District Environmental Protection Bureau and the Chengdong

District Environmental Protection Bureau are responsible for implementing the supervision and

management of the project environmental protection work, organizing and coordinating relevant

agencies to provide service for the project environmental protection, and supervising the

implementation of the Environmental Action Plan.

(2) Design Phase: The EP department of the PMO under the Xining Municipal Construction

Commission shall be responsible for coordinating with the design institute to incorporate the EP

measures and their cost budgets in the design documents, and the Xining Municipal Construction

Commission shall carry out technical check and acceptance at the preliminary design review

meeting of the project.

(3) Construction Phase: Environmental supervision at this stage shall be in the charge of the EP

department of the PMO under the Xining Municipal Construction Commission. The environmental

protection bureaus in the Chengzhong District, the Chengdong District and Chengxi District shall

be under the guidance of the Xining Municipal Environmental Protection Bureau. They shall

supervise the construction units to implement the approved "Environmental Action Plan" in

accordance with the laws/regulations and criteria regarding environmental management. They will

be also responsible for the construction of EP facilities as well as the review and supervision during

the project operation. As required by the Guidelines on Environmental Supervision for

Construction Projects during the Construction (DB63/T 1109-2012), they shall request the project

owner to recruit an environmental supervising agency. The agency shall take the responsibilities

as follows:

① Entrusted and authorized by the construction project owner, the agency shall develop targeted

EP management methods and a detailed environmental supervision implementation plan according

to relevant national laws and regulations regarding EP and project construction, and its

environmental supervision contract and other project construction contracts as well. They shall be

combined with the concrete construction plan of the proposed project and the pollution prevention

& control measures proposed in this EIA report. In particular, it shall develop and implement

training activities on EP expertise and competences for contractors, environmental supervision

engineers and line agencies dealing with environmental protection;

①It is necessary for the agency to regularly inspect construction sites, to supervise the

implementation of EP measures by construction units, and to prevent and remedy the construction

activities that do not comply with the stipulations of EIA documents in a timely manner;

① The agency shall investigate and handle problems involving community disturbances or

pollution arising from the project construction.

① It shall submit environmental supervision reports (monthly, semi-annual and annual reports)

and/or special reports to the project owner and the World Bank.

(4) Operation Phase: The Xining Municipal Environmental Protection Bureau and the engineering

department at sites where components are implemented shall carry out supervision work. The

196

Xining Municipal Environmental Protection Bureau is responsible for adequately implementing

relevant EP regulations and criteria, overseeing the operation of environmental protection facilities

of the project construction units and supervising the up-to-standard pollutants emission of the

project.

(5) Environmental monitoring activities during the construction and operation periods shall be

implemented by the Xining Environmental Monitoring Station or a qualified monitoring agency.

The environmental supervision work is implemented by an environmental supervising agency

entrusted by the project owner. The agency shall have the qualification of environmental

supervision of construction projects issued by the authorities of Qinghai Province. After the project

completion, an environmental protection agency will be set up and staffed with dedicated staff

members in charge of the project environmental protection.

8.1.3 Environmental Management Procedure

The environmental management procedure is shown in Table 8.1-1.

8.1.4 Environmental Management Priorities

As adverse environmental impacts of road construction projects are mainly concentrated in the

construction period. Therefore, the environmental management of the project is focused on the

implementation of environmental protection measures during the construction period.

① Noise pollution during the construction period: focus is placed on the prevention & control of

noise pollution caused by construction machinery and vehicle transportation. For example, it is

wise to take measures like adopting low-noise machinery, using commercial concrete, prohibiting

construction at night (22:00 ~ 6:00), slowing down transportation vehicles and banning whistling.

① Dust pollution in construction: Focus is also on dust prevention & control measures for

construction sites, temporary earthwork piled up and transportation roads, such as water sprinkling

for dust suppression on the construction sites and transportation roads, temporary enclosure to be

built on the construction sites, dust prevention by covering bulk materials and earthwork, and water

cleaning and airtight sealing of transport vehicles.

① Demolition and Reconstruction of the Xiguan Bridge: Priority is given to the impacts of

demolition and reconstruction of the Xiguan Bridge on the water environment of the Nanchuan

River. Prior to the demolition of the old bridge, it is necessary to strengthen the enclosure

protection so that the building can be safely enclosed to prevent demolished construction wastes

from falling into the Nanchuan River. A mud pool is provided during the construction of bridge

foundation, and demolished construction rubbish and foundation drilling slag shall be timely

cleared up and transported to designated construction wastes disposal sites.

197

Table 8.1-1 Environmental Management Procedure

8.1.5 Environment Management Plan

The environment management plan in the process of the project implementation is shown in Table

8.1-1。

198

Table 8.1-1 Project Environment Management Plan

Phases Implementation Road Sections Measures Implementing

Agencies

In-charge

Agencies

Supervising

Agencies

Construction

Period

Prevention &

Control of Noise

Pollution

All Road

Sections

① Reasonably arranging construction timing, that is, undertaking construction during daytime (8:

00-22: 00), and stopping construction at night (22: 00-6: 00);

② trying to use low-noise machinery and banning the admission of machinery over national

standard;

③ Letting noisy machinery stay far away from residential areas and other acoustic environment

sensitive points, and taking regular maintenance, strictly implementing operating procedures;

④ Using commercial concrete, and not setting up concrete mixing plant within the construction

sites;

⑤ Doing a good job in organizing construction vehicles. When transport vehicles are traveling in

sensitive points, they shall be slowed down, with no whistling.

Contractors Project Owner

Xining

Municipal

EPB;

Xining

Chengdong

District EPB;

Xining

Chengzhong

District EPB;

Xining

Chengxi

District EPB

Prevention &

Control of

Atmospheric

Pollution

All Road

Sections

① Providing full-time staff to carry out sprinkling for dust suppression n the construction sites and

main construction roads;

① For the transportation and temporary storage of bulk materials, they shall be done in the downwind

direction of main wind direction in residential areas, while wind breaking or sprinkling should be

taken to reduce the amount of dust generated;

① Using commercial concrete and finished stone materials; timely clearing up construction wastes,

and covering them; reasonable arranging transport operations; and paying attention to vehicle

maintenance;

① For all construction sites, achieving five requirements of "100%" (100% of enclosure on the

construction sites, 100% of hardened pavement on the construction sites, 100% of water sprinkling

on the building demolition sites, 100% of wheel rinsing and sealed transportation of spoil /slag

vehicles going out of the construction sites, and 100% of greening or covering of construction lands

temporarily untapped);

① Prior to the construction of road sections, implementing full enclosure of building sites and

ensuring site hardening and water sprinkling; storing and covering all kinds of heaps (slag) in an

enclosed way, implementing rinsing of slag transport vehicles and not allowing for traveling with

mud;

① For transport vehicles, adopting dust-proof measures such as sealing and rinsing; for muck

transport vehicles, achieving all airtight transport; strengthening road sprinkler cleaning, and

expanding the scope of cleaning;

① Piling up various types of gravel aggregate and cement in a concentrated way, and covering the

heap body with ecotextiles;

⑧ Constructing road drainage pipelines and common utilities tunnels by stage; temporarily piling

199


Agencies

In-charge

Agencies

Supervising

Agencies

up excavation earthwork on one side of the ditches; adopting covering measures for temporary

stacking of earthwork, and timely transport the earthwork left to the designated construction garbage

landfill sites after construction backfilling.

Prevention &

Control of Water

Pollution

All Road

Sections

① Strengthening construction management and supervision by regularly inspecting construction

machinery;

② Using construction wastewater to carry out water sprinkling after the treatment of oil separation

and sedimentation facilities; discharging construction domestic sewage into the municipal

sewage pipe through septic tanks and then into the Xining No. 1 Sewage Treatment Plant for

treatment;

Demolition &

Reconstruction

of Xiguan

Bridge

① Strengthening construction management and supervision by regularly inspecting construction

machinery;

② Not stacking construction materials such as asphalt, oil, chemicals near the Nanchuan River,

and providing them with temporary shelter canvas;

③ Using construction wastewater to carry out water sprinkling after the treatment of oil separation

and sedimentation facilities; discharging construction domestic sewage into the municipal

sewage pipe through septic tanks and then into the Xining No. 1 Sewage Treatment Plant for

treatment;

④ Prior to the demolition of the old Xiguan Bridge across the Nanchuan River, do strengthening

in safely enclosed construction to prevent construction waste into the Nanchuan River; strictly

implementing the demolition in accordance with work procedures and civilized construction,

and timely removing the construction waste from bridge demolition and shipping them to the

designated construction waste disposal sites;

⑤ Setting a mud pond for foundation construction of the Xiguan Bridge across the Nanchuan

River;

Prevention &

Control of Solid

Wastes Pollution

All Road

Sections

① Shipping the project spoil uniformly to the Najiashan Commercial Slag Disposal Site of the

zhengyuan Company for disposal.

② Handing over domestic rubbish to the sanitation department for disposal after classification and

collection.

③ Not discarding and scattering solid wastes along the way during transport;

Operation

Period

Measures of

Prevention &

Control of Noise

Pollution

All Road

Sections

① Formulating the corresponding traffic noise management regulations according to the regional

characteristics;

② Using low noise road pavements;

③ Setting signs of speed limit and warning;

Contractors Project Owner

Prevention & ① Prohibiting passing vehicles with over-standard exhaust gas emissions; Local Local transport

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Agencies

In-charge

Agencies

Supervising

Agencies

Control of Waste

Gases Pollution

② keeping the urban roads clean, timely sprinkling water for dust suppression; transport

administration,

local urban

administration

administration

/ local urban

administration

Environmental

Monitoring Implementing relevant national technical regulations of environmental monitoring.

Qualified

monitoring

agency

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8.2 Environmental Monitoring Plan

8.2.1 Monitoring Objectives

The project environmental monitoring mainly includes the impacts of construction and operation

on the environment on both sides of the urban roads. The purpose of this project is to ensure the

implementation of various environmental protection measures and suggestions mentioned in the

EIA report and to control the environmental impacts caused by the project construction within the

stipulated scope of national laws, regulations and criteria regarding environment monitoring.

8.2.2 Contents & Requirements of Environmental Monitoring during the Construction

(1) Contents of Environmental Monitoring during the Construction

① Impact of flying dust of construction sites and transport vehicles on sensitive points such as

residents, schools and hospitals nearby;

① Impact of construction noise on sensitive spots such as residential areas, schools and hospitals

nearby.

(2) Environmental Monitoring Plan

The environmental monitoring plan during the construction is seen in Table 8.2-1. Among them,

the monitoring of environmental is noise mainly focused on the construction of road pavement;

and the monitoring of air quality on earthwork excavation. In terms of selection of monitoring

points, atmospheric and noise monitoring points can be set up at sensitive points along the urban

roads according to the actual conditions such as transportation routes during the construction

period.

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Table 8.2-1 Environmental Monitoring Plan during the Construction

Environmental

Elements

Monitoring

Items Monitoring Point-positions

Monitoring

Frequency

Implementing

Agencies

Supervising

Agencies

Ambient Air TSP

① Qiyi Rd Integrated Improvement Works:

Qinghai Public Health Vocational Technology

College, Meijia Huayuan RC, Zhoujiquan

Modern City Mall, Wentai RC and

construction sites;

① Wuyi Rd Slow-moving Improvement

Works: Taiheyuan RC and construction sites;

① Changjiang Rd Improvement / Expansion

Works: Qinghai Ribao RC and construction

sites;

Xiguan Av Improvement / Expansion

Works：construction sites;

Monitoring during the

construction of road

sections (once a month)

An

Environment

monitoring

agency with

qualifications

Xining

Municipal

EPB,

Xining

Chengzhong

EPB,

Xining

Chengdong

District

EPB,

Xining

Chengxi

District

EPB

Acoustic

Environment LAeq


Qingmian RC, Qinghai Public Health

Vocation Technology College,

Zhongyiyuan RC, Jingdu Building,

Qinghai Shen Junqu Caozi RC, Meijia

Huayuan RC, Longhua Jiayuan RC,

Zhoujiaquan Modern City Mall, Jinfeng

Binheyuan RC, Wentai RC, Qinghai Shen

Meitan 105 Dui RC;

② Wuyi Rd Slow-moving Improvement

Works: Taiheyuan RC, Jingji Haoting RC;

③ Changjiang Rd Improvement and

Expansion Works: Qinghai Ribao RC and

construction sites; Xiguan Avenue

Improvement and Expansion Works:

construction sites;


construction of road

sections (once a month,

with once in the

daytime and once at

night)

Water

Environment

pH, COD,

BOD5, NH3

-N, petrol

At bridge of landscape waters of the Nanchuan

River.


construction of the

bridge (once a month,

lasting two days)

(3) Environmental Monitoring Requirements

The implementing units shall indicate the contents and requirements of environmental monitoring

during the construction period in construction contracts; and the construction units shall organize

and implement them in the construction process. The environmental monitoring shall be completed

by entrusting an agency with corresponding environmental monitoring qualifications. All

monitoring reports shall be documented as part of information and data regarding EP

acceptance of project completion.

8.2.3 Contents & Requirements of Environmental Monitoring During the Operation

(1) Contents of Environmental monitoring during the Operation

The environmental monitoring during the Operation mainly involves impacts resulting from traffic

noise and vehicle exhaust along the urban road sides.

(2) Environmental Monitoring Plan

The environmental monitoring plan is shown in Table 8.2-2.

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Table 8.2-2 Environmental Monitoring Plan during the Operation

Environmental

Elements

Monitoring

Items Monitoring Point-positions

Monitoring

Frequency

Implementing

Agencies

Supervising

Agencies

Acoustic

Environment

TSP 、

NO2、CO


Meijia Huayuan RC;

① Wuyi Rd Slow-moving Improvement Works:

Taiheyuan RC;

③ Changjiang Rd Improvement / Expansion

Works: Qinghai Ribao RC

Once a year

An

Environment

monitoring

agency with

qualifications

Xining

Municipal

EPB,

Xining

Chengzhong

EPB,

Xining

Chengdong

District

EPB,

Xining

Chengxi

District

EPB

Water

Environment LAeq

①Qiyi Rd Integrated Improvement Works:

Qinghai Public Health Vocational Technology

College, jingdu Building, Meijia Huayuan RC,

Zhoujiquan Modern City Mall, Jinfeng

Binheyuan RC, Wentai RC;

① Wuyi Rd Slow-moving Improvement

Works: Taiheyuan RC;

① Changjiang Rd Improvement / Expansion

Works: Qinghai Ribao RC;

Twice a

year

(3) Environmental Monitoring Requirements

In the first year after the project is completed and put into operation, the road management

department shall entrust the environmental monitoring department with the corresponding

qualifications to complete the environmental monitoring, and all the monitoring reports should be

documented for later review.

8.3 Environmental Supervision

According to the requirements of the "Environmental Supervision Guidelines for Construction

Projects – Local Criteria in Qinghai Province" (DB63/T 1109-2012), the environmental

supervision system shall be implemented during the construction period. For the construction

project, a socialized and specialized environmental supervision agency shall be entrusted and

authorized to carry out overall environmental management of the project in accordance with the

requirements of project quality and environmental protection, construction laws and regulations,

environmental supervision contracts and the approved project construction papers.

8.3.1 Fundamental Principles of Environmental Monitoring

(1) Environmental supervision is different from engineering supervision. The engineering

supervision agency focuses on overall control and management of quality, cost, schedule and

safety of the project, including four major controls in the process of individual environmental

protection projects and the construction of environmental protection facilities. Environmental

supervision involves EP up-to-standard of construction projects, implementation of mitigation

measures for environmental impacts, especially EIA documents and supervision & inspection on

the compliance of approval, and aiming at the whole process of the construction project as well;

(2) The engineering supervision agency shall develop a plan of environmental monitoring based

on the relevant EP codes and standards, engineering design drawings, design specifications and

other design documents, engineering construction contracts and bidding and tendering documents,

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EIA reports (especially the environmental impact mitigation measures, environment monitoring

plan), environmental supervision contracts and bidding documents. The agency shall conduct

supervision work as required by the plan of environmental monitoring;

(3) The environmental supervision is directed toward all environmental pollution behaviors that

may result from construction activities; It shall focus on environmental protection during the

construction, ecological restoration in the later construction stage and implementation of pollution

prevention and control measures.

8.3.2 Scope and Period of Environmental Monitoring

Scope of environmental supervision: It includes construction areas and environmental impact areas

of the construction project.

Environmental Supervision Period: It goes from the signing of an environmental supervision

contract to the end of EP acceptance of the project completion for the environmental supervision

contract.

8.3.3 Methods and Procedures of Environmental Supervision

(1) Methods of Environmental Supervision

In order to achieve the goal of environmental supervision, the supervision agency shall adopt

methods such as visual inspection, by-standing, witness, environmental supervision meetings,

monitoring, coordination, training, recording, documentation, follow-up inspections and work

reports to regularly carry out on-site monitoring of water, gas and noise at construction sites. When

identifying any EP problem, the environmental supervision personnel immediately inform the on-

site manager of the contractor to clear up its action, if necessary, and issue the Stoppage Order

Notice regarding Environmental Supervision Engineering. The notice shall also be copied to the

project supervision agency and the project owner representative. After receiving the notification

from the environmental supervision engineer, the contractor shall clear up its action in response to

existing problems. After qualified action, the contractor shall submit the "Application Form for

Resumption of Environmental Supervision Engineering" to the environmental supervision agency,

with a copy to the engineering supervision agency and the project owner representative. Upon the

receipt of the application for resumption of work submitted by the contractor, the environmental

supervision agency shall check the completion of their improved contents. After confirming that

the conditions for resuming work are met, it can issue a notification of work resumption identifying

resumption scopes and supervise the execution of the contractor.

Any change in environmental impact mitigation measures, pollution prevention & control and

ecological protection measures involved in the EIA documents shall be proposed by the

construction unit, design institute, engineering supervision agency, environmental supervision

agency and construction contractor (or operation agency). The environmental supervision agency

shall review and make productive comments. The implementing agency shall coordinate with

relevant line agencies to sign documents regarding the change.

（2）Environmental Supervision Procedure

The EP supervision procedure is shown in Table 8.3-1.

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Table 8.3-1 EP Supervision Procedure

8.3.4 Contents of Environmental Supervision

Environmental Supervision in the Pre-construction Phrase

As for this MR project, the environmental management in the pre-construction phase mainly refers

to the environmental management in the construction design and construction contracting of the

next stage. During the construction design phase, the relevant departments of Xining Municipality

will supervise the implementing agency and the design institute in implementing various

environmental protection measures proposed in EIA Report and Environmental Management Plan

(EMP) and formally approved by the Xining Municipal Environmental Protection Bureau. Such

environmental protection measures will be included in the investment cost estimation and full

reflected in the construction design in order to achieve the “Simultaneous Design” requirements

of“3 Simultaneous Steps " of environmental protection projects.

In the course of construction contracting, the implementing unit shall put environmental protection

works on the same important position as the principal works. It shall put forward EP requirements

for the construction unit's construction arrangement plan based on relevant requirements of the

EIA Report. Before entering construction sites, construction workers should receive training on

the knowledge regarding EP laws/regulations, ecological protection and pollution prevention and

control.

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Environmental Supervision in the Midterm Construction Phase

1. Objectives of Environmental Supervision

Environmental protection supervision and engineering construction supervision have both

connections and differences. EP supervision involves as follows:

(1) Examining whether all EP components are fully implemented in the project construction

according to the project EIA report reviewed and approved;

(2) Carry out environmental supervision to ensure that construction quality, construction period,

ecological restoration and pollution control of various EP components can meet required criteria

as well as relevant requirements of EP laws and regulations;

(3) According to supervisory responsibilities and power as well as supervisory work management

procedures as stipulated in the contracts, reporting such incidents as non-compliance with

construction stipulations or construction quality that cannot meet criteria in the supervisory process

to the construction and implementing units in a timely manner; and developing resolutions to

obtain approval, to clear up action or to make changes according to the prescribed procedures;

(4) Assisting law enforcement inspection of local environmental protection authorities and other

departments to provide a scientific and detailed basis for the handling of environmental disputes;

(5) Reviewing and checking the quantity and quality of EP components, and attending the project

completion acceptance.

2. Environmental Supervision of Noise Pollution

In order to protect from noise pollution, pollution sources of heavy noise shall be curbed according

to related design requirements. It is required that the noise environmental quality in the

construction areas and its affected areas meet corresponding criteria Environmental supervision

engineers shall be familiar with all kinds of noise pollution sources such as construction machinery

working place, construction timing, traffic noise source and staff living noise in construction

activities, and supervise and inspect whether all kinds of mechanical equipment in construction

process have controlled noise pollution according to relevant laws and regulations and avoided

any noise disturbance to concentrated residential areas and other sensitive points.

3. Environmental Supervision of Ambient Air Pollution

Air pollution in the construction areas mainly comes from exhaust gas and dust generated in the

process of construction and production. In terms of up-to-standard emission for sources of

pollution, the construction areas and its impact areas should meet required environmental quality

criteria. The construction sites should be regularly given water sprinkling according to climate

change so as to ensure clean and tidy construction sites. When it comes to the assessment of

ambient air quality monitoring results at sensitive points within 200m of the construction sites,

over-standard pollution shall be notified by the EP supervision engineers to the contractor to take

precaution measures to make sure that the ambient air quality can meet the scope of standard limits.

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4. Environmental Supervision of Water Pollution

Vehicle flushing should be concentrated in the construction sites. Vehicle flushing water should be

treated with grease separation and sedimentation and then be reused. It is prohibited that

construction wastewater is discharged into the Nanchuan River; whereas domestic sewage treated

by septic tanks can be directly discharged into the municipal sewage pipeline system and

eventually into Xining No. 1 Sewage Treatment Plant in the city for treatment. Mud ponds shall

be set up for the bridge foundation construction; and the construction sites shall be kept far away

from the Nanchuan River. The grease traps and sedimentation tanks shall be removed and cleaned

up by the construction unit after completion of the construction.

5. Environmental Supervision of Solid Wastes

It is necessary to supervise and inspect whether the construction site rubbish is properly disposed

of according to relevant regulations. The disposal of solid wastes involves domestic waste and

construction waste, so the construction site shall be kept as tidy and clean as possible.

6. Management of Transport Vehicles

The construction units should strengthen the management of transport vehicles. Construction

vehicles should be arranged in the daytime. During the construction at night, measures such as

slowing down and no whistling shall be taken to reduce the impact of noise on residents along the

routes. Upon receipt of any complaint about working noise, the construction unit shall immediately

review its working methods and machinery used and take effective measures to mitigate the noise

disturbance.

Transport vehicles shall not be overloaded to control scattering; and for affected road sections at

the entrances or exists as well as construction access roads, the construction unit shall organize

some dust clearing and water sprinkling so as to prevent dust from affecting the environment along

the lines.

Environmental Supervision in the Post-construction Phase

It is important to supervise the implementation of environmental restoration plan, the operation of

EP treatment facilities, and the implementation of ecological restoration and pollution prevention

& control measures. There is also need to attend environmental engineering acceptance, to assist

the implementing agency in organizing personnel's EP training, and to be responsible for

developing the work plan and summary report with respect to project environmental supervision.

8.3.5 Requirements of Environmental Supervision Results

(1) It is necessary to strengthen environmental supervision of construction units by standardizing

their construction practices, which will effectively control the destruction of ecological landscapes

and the emission of pollutants during the construction and will facilitate EP agencies in supervising

environmental protection during the project construction.

(2) There is also need to take charge of controlling EP measures related to principal works quality,

thus enabling engineering supervision to play a role in strengthening, supervising and guiding

environment protection.

(3) The implementation of national, provincial and municipal EP policies and regulations shall

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also be strengthened, thus giving full play to the role of third-party supervision.

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9 Conclusions and Recommendations

9.1 Project Basic Information

The MR Project consists of 3 components like urban roads, PI and ITS.

(1) Urban Roads

It is proposed to newly add the Qiyi Road Integrated Improvement Works, the Wuyi Road Slow-

moving Improvement Works, the Changjiang Road Improvement and Expansion Works and the

Xiguan Avenue Improvement and Expansion Works.

① Qiyi Road Integrated Improvement Works: It has a total length of 5.13km. The improved road

sections include 3838.535m of the Qiyi Road (Changjiang Road to Delingha Road), 323.855m of

the Delhi Road (Qiyi Road to Bayi Road) and 966.551m of the Bayi Road (Delingha Road ~

Langzhong Road). The Qiyi Road and the Delingha Road are 2 secondary trunk urban roads with

bidirectional 6 lanes, a red line width of 30m and a design speed of 40km/h, and the Bayi Road

the primary trunk urban road, with bidirectional 8 lanes, a red line width of 40m and a design speed

of 60km/h.

① Wuyi Road Slow-moving Improvement Works: It has a total length of 0.64m. It is a primary

trunk urban, with bidirectional 6 lanes, a red line width of 35m and a design speed of 40km/h.

① Changjiang Road Improvement Works: It has a total length of 1.41m. It is a primary trunk urban

road, with bidirectional 8 lanes, a planned red line width of 35m and a design speed of 50km/h.

① Xiguan Avenue Improvement and Expansion Works: It has a total length of 0.42m. It is a primary

trunk urban road, with bidirectional 8 lanes, a planned red line width of 46m and a design speed

of 50km/h.

（2）PI

It is proposed to procure new electric buses and their OBU passenger flow analysis system.

（3）ITS

It is proposed to newly add platform connection study, off-site video forensics system of traffic

violations capture, imaging forensics system, vehicle intelligent monitoring system, high point

watch system and Hawkeye system.

The project has a total investment of RMB 687,776,100 Yuan, with a planned construction period

of 16 months. The project shall be started in March, 2018 and will be completed in June 2019.

9.2 Environmental Quality Status

9.2.1 Natural Environment Overview

The proposed project is located in the urban built-up areas of the Xining City. The project area has

a high level of development, a dense population within the works areas, frequent artificial

developments that are mainly influenced by human activities. Most of the land in the project area

has been developed as houses and shops. The current vegetation along the urban roads is mainly

the road afforestation species, and the animals mainly include domestic animals such as dogs and

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cats. According to field survey, there are no habitats or breeding grounds for national or local rare

animals within the scope of the project EIA. The project does not involve rare plants protected by

the state and cultural relics.

9.2.2 Environmental Quality Status

As can be seen from the monitoring results of ambient air, the monitoring concentrations of TSP,

PM10, NO2, CO and NO2 in the project area meet Level II criteria of Ambient Air Quality Criteria

(GB3095-2012).

According to the investigation and monitoring of current situation of environmental noise, the

current situation of acoustic environment in the EIA area is mainly affected by road traffic noise

and social life noise, with the environment noise at some monitoring points over-standard.

At bridge of the Nanchuan River landscape water body on the Xiguan Avenue, all indicators of

pH, SS, DO, BOD5, COD, ammonia nitrogen, permanganate and petrol can meet water quality

criteria of Category IV as specified in the Quality Criteria of Surface Water (GB3838-2002).

9.3 Environmental Impacts and Measures during the Construction

9.3.1 Atmospheric Environment

The proposed project construction area shall not be provided with concrete mixing stations. Air

pollution sources during the construction period involve flying dust generated from road paving,

loading and unloading of sand and lime materials and their transportation process, bitumen smoke

from road paving, and exhaust fumes from construction machinery and transport vehicles powered

by fuel.

It is necessary to sprinkle water timely at the construction sites to ensure that the humidity of the

construction sites is conducive to the suppression of dust generation, which can effectively reduce

the impact on the surrounding environment. Speed limits in the transportation of raw and auxiliary

materials procured, commercial soil and excavation earthwork, and keeping the roads clean by

regularly sprinkling is effective ways to reduce vehicle dust. When paving, the asphalt is

compacted by road roller and naturally cooled after about 10 minutes, the temperature of asphalt

mixture drops to less than 82°C and the asphaltic smoke is obviously weakened. There will be less

impact of bitumen smoke on the surrounding environment since the air diffusion conditions at the

construction sites are better. The construction units shall strengthen the maintenance and

management of machinery and equipment, exhaust transmission from the construction machinery

and equipment will have less pollution impacts over the surrounding environment and only limited

to the construction period.

In order to reduce the impact of flying dust generated from construction sites and vehicles on the

surrounding environment, the implementing and construction units should earnestly improve the

air pollution prevention & control work during the construction period according to the relevant

regulations of Xining Municipality, for example, setting enclosure on the road sections,

standardizing silt goods bumping and vehicle transportation, covering bulk materials and

temporary earthwork, watering regularly, timely slag removal and so on.


The impacts on the surrounding water environment during the project construction mainly involves

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construction wastewater and domestic sewage.

The project is located in the urban areas of the Xining City. The drainage status along the roads

falls into the work scope of the Xining No. 1 Sewage Treatment Plant. The construction campsite

should be equipped with septic tanks and drainage pipes to be connected with the municipal

sewage pipe network. The construction and domestic sewage water will enter the municipal

sewage pipeline system after the septic tanks and then be discharged into the Xining No. 1 Sewage

Treatment of Plant.

The construction sites of the project will not be provided with maintenance yards. The mechanical

maintenance shall be made in a unified way at professional maintenance points. The construction

wastewater mainly consists of mechanical and vehicular wastewaters. Such wastewater contains a

large amount of silt with a high concentration of suspended particles and pH of weak alkaline, and

a small amount of oil stains as well. Equipment flushing water can be reused after being separated

from oil and deposited, for example, for equipment flushing and water sprinkling for dust

suppression. It is banned that the equipment flushing water be directly discharged into the

Nanchuan River and the Huaangshui River.

The construction units need to strengthen production safeguards prior to the demolition of the old

Xiguan Bridge over the Nanchuan River, so that the construction can be safely enclosed to prevent

demolished construction wastes from falling into the Nanchuan River. The bridge demolition work

shall be strictly undertaken in accordance with norms, civilized construction behaviors. Building

wastes generated from the bridge demolition shall be timely removed and transported to the

designated construction wastes disposal site so as to prevent them from rolling into the Nanchuan

River landscape water body and thus protecting from any water pollution. The Xiguan Bridge pile

foundation construction should be provided with mud ponds, so that bridge foundation drilling

slag and muck can be promptly cleared up to the designated constructional garbage landfill site.

They shall not be discarded into the river or randomly piled up; construction materials and

construction camp should be kept as far as possible away from the Nanchuan River.

9.3.3 Acoustic Environment

Generally, construction machinery noise has a big impact on the acoustic environment at sensitive

points near the urban roads at night, and its impact in the construction sites mainly occurs within

about 300m away from the sensitive points. According to field survey, located in the built-up areas

of Xining Municipality, the MR project has densely distributed acoustic environmental protection

targets and close distances from residential areas. The noise within the construction boundaries

can hardly meet the requirements of the Environmental Noise Emission Criteria within the

Boundaries of Construction Sites (GB12523-2011).

The MR project shall adopt low-noise machinery to reasonably arrange construction operation

timing and construction sites by scheduling the construction during the daytime (8: 00-22: 00),

and stopping the construction at night (22: 00-6: 00). Commercial concrete shall be adopted.

Construction sites shall not be provided with concrete mixers. It is important to do a good job in

organizing construction vehicles and to required that transport vehicles at sensitive points should

be slowed down, with no whistling, so as to ensure no interference with the normal life of residents

at the sensitive points.

9.3.4 Solid Wastes

The main solid wastes during the construction are abandoned earthwork, construction waste and

domestic garbage of construction workers. If not disposed of properly but randomly piled up, the

212

abandoned earthwork will not only occupy land resources, but also cause environmental air

pollution by generating flying dust on windy days. When it rains, soil erosion will be easily caused,

thus affecting urban landscape.

It is proposed that the spoil of this project be transported to the Najiashan Commercial Slag

Disposal Site of the Zhengyuan Company for handling in a unified manner. The domestic garbage

of the construction workers will be handed over to sanitation departments for disposal, thus not

obviously affecting the surrounding environment. Within the construction sites, construction and

clearing shall be done on a regular basis, so that clearing up is done after construction, with no

piling up building garbage heaps.

9.3.5 Ecological Environment

Construction activities will not have a major impact on the plant resources along the lines, nor

change the original land use pattern and exacerbate the resource shortage along the lines.

Meanwhile, implementing engineering greening measures will lead to an increase in land area and

environmental beautification, enhancing the overall image of the city.

The urban roads shall be built within the red line range, that is, earthwork and material stockpile

do not encroach on the nearby areas. For large tracts of construction waste accumulation in the

construction, they shall be dealt with by road section, with good enclosure. It is necessary to clear

up abandoned slag or debris to avoid a disorderly landscape. It is also important to do a good job

in the rational deployment of earthwork. Specifically, excavation of earthwork shall be avoided on

rainy days to avoid rainwater erosion by flushing and pipeline blockage by pollutants.

9.4 Impact Assessment during the Operation

9.4.1 Ambient Air

During the operation period, pollution of ambient air mainly comes from flying dust and vehicular

exhaust (major pollutants emission factors such as CO and NO2) generated by transport. The EIA

has made a prediction of exhaust emissions of motor vehicles during the operation period. It turns

out that annual, daily and hourly concentrations of CO, NO2 in the project operation period in the

forecast years meet relevant criteria, thus having an insignificant impact on the atmospheric

environmental quality along the routes.

The EIA puts forward the recommendations as follows:

a) Banning the travel of motor vehicles with over-standard exhaust pollutants emission;

b) Strengthening inspection and maintenance of motor vehicles;

c) Keeping pavements clean by timely sprinkling water for dust suppression;

d)Purifying the air by vegetation;

e)Strengthening environmental management. Traffic management authorities shall set up an

environmental management agency and entrust it to periodically conduct monitoring of ambient

air at the monitoring points stipulated in the EIA.

9.4.2 Acoustic Environment

It is forecast that some sensitive points along the roads during the project operation will have

different levels of over-standard phenomena.

Based on field investigation, soundproof windows (double-layer insulating glass) have been

213

installed in most of the sensitive spots along the urban roads. In order to further improve the

acoustic environment quality in the project area, it is recommended that the proposed urban roads

be replaced with SMA low-noise road pavement, that road operation management be strengthened

during the operation, that corresponding traffic noise management regulations be formulated in

combination with regional characteristics, that greening be done along the roads and that acoustic

environment tracking and monitoring during the test-run and initial operation periods. Additionally,

according to the EIA, for development and construction activities along the urban roads, full

consideration shall be given to noise protection distance of the urban roads. When building

sensitive points such as schools, hospitals and residential areas, it is wise to reduce the impact of

traffic noise on environment-sensitive points by design optimization, land adjustment and land use

functions.


Water pollution in the project operation period mainly involves pavement runoff. Pavement runoff

pollutants are mainly suspended solids and petroleum and so on. Their concentration is the highest

at the beginning of a rainfall and decreases rapidly over time, which would not significantly affect

the quality of the water body recipient. This MR project are designed for the existing urban roads,

and dangerous goods transportation is not allowed within their range. Therefore, there will be no

risk of polluting water body caused by traffic accidents of vehicles loaded with toxic and hazardous

substances in this project.

However, in the process of road transportation, poor management, inappropriate operation of

transport personnel or other factors may result in the occurrence of traffic accidents such as

collisions and overturning. Especially in the case of a traffic accident at bridge across the Nanchuan

River on the Xiguan Avenue, there would be water pollution to the water body of the Nanchuan

River. It is necessary to take measures to prevent similar traffic accidents from happening.


After the completion of the project, greening area will be increased, which can compensate

ecological loss due to the project construction to a certain extent. The road greening also has the

effects of beautifying the environment, restraining and absorbing dust, exhaust gas, and increasing

oxygen as well.

9.5 Compliance Analysis of Industrial Policies and Planning

The construction of urban roads under the MR project falls into the category of incentive projects

contained in such documents as the "Catalog for the Guidance of Industrial Structure Adjustment

(Year 2011 Edition)" issued by the National Development and Reform Commission of the People's

Republic of China (No. 9 Order) and "Decision on Relevant Terms and Conditions in the Catalog

for the Guidance of Industrial Structure Adjustment (Year 2011 Edition)" issued by the the National

Development and Reform Commission of the People's Republic of China (No. 21[2013]).

Specifically, they refer to such projects as "construction of urban public transport construction,

construction of urban Roads and Intelligent Transport System, construction of common utility

tunnels, urban water supply and drainage pipelines network, and urban rainwater collection and

utilization works” in the Categories of “ Article 22: Urban Infrastructure”. They are aligned with

national industrial policy requirements.

The project construction conforms to the "Amendment of the Xining Municipality Master Urban

Plan (2010-2020)", and its construction is of great significance to improving regional road network

structure and enhancing traffic capacity along the road routes.

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9.6 Public Participation

(1) Public Participation in the Project Implementation

On May 12, 2017, the Xining Municipal PMO entrusted the Zhongnan Safety Environmental

Technology Institute Company, Ltd to undertake the EIA work of this project. During the EIA

process, the investigation of public participation was carried out in accordance with relevant

national and local regulations.

On May 17, 207, the Xining Municipal PMO posted the First Public Disclosure on Public

Participation in the EIA Process of the MR project in the concentrated residential compounds along

the newly proposed urban roads. The public disclosure clearly indicates the names and contact

details of the implementing agency and the EIA agency undertaking the EIA work, so that the

public may directly express their opinions to the agencies. In the first stage of public disclosure,

the implementing agency and the EIA agency did not receive any complaint or negative feedback

from the public regarding this project.

On July 31, 2017, the Second Public Disclosure on the EIA Report of the MR Project (Simplified

Version) was published on the website of the Qinghai Provincial Environmental Protection Bureau.

The public disclosure includes salient points of the conclusions on the EIA, proposed EP measures,

names and contact details of the implementing agency and the EIA agency undertaking the EIA

work, and the public may express their opinions to the agencies. In the second stage of public

disclosure, the implementing agency and the EIA agency did not receive any complaint or negative

feedback from the public regarding the project.

In the meanwhile, a on-spot questionnaire survey of public participation was conducted. A total of

150 questionnaires for public participation of individuals were distributed to the residential

compounds along the urban roads and 148 questionnaires actually collected. 10 public

participation questionnaires were handed out and collected for hospitals, schools, community

management committees and other relevant agencies along the project road lines.

(2) Public Opinions and Follow-up Implementation

According to the results of the public participation survey, 87.2% of the 148 individual respondents

expressed their support for the project construction; 12.8% responded their indifference attitude

and their no objection to the project construction; and all the groups surveyed expressed their

support for the project construction. Meanwhile, the surveyed public citizens also put forward

requirements and suggestions on environmental protection and pollution prevention & control.

These include improving vegetation greening, reducing inconvenience of traveling caused by

construction, speeding up construction progress and minimizing noise and dust. The implementing

and EIA agencies shall adopt and implement them in different ways.

9.7 General Conclusions

The MR project is in line with the industrial policies and local planning, thus being of great

significance to the improvement of infrastructure construction and the enhancement of urban

functions in the Xining Municipality. There will be good coordination between MR project

construction and the regional construction of the areas where the project is located, with good

social and economic benefits.

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The project construction and operation process will exert a certain adverse impact on the ecological

environment, acoustic environment and air environment in the areas where the project is located.

The implementing and construction agencies shall ensure the input of EP fund, strictly implement

the "3 Simultaneous Steps" system, and adequately implement various EP measures as specified

in the EIA Report reviewed and approved. Under the prerequisite, possible environmental impacts

of the MR project will be effectively controlled and mitigated. From the perspective of

environmental protection, the MR project is feasible.