23
Central Central Wan Wan Chai Chai Bypass ( Bypass ( CWB CWB ) ) Tunnel (North Point Section) and Tunnel (North Point Section) and Island Eastern Corridor Link Island Eastern Corridor Link Aesthetic and Landscaping Design for Aesthetic and Landscaping Design for Noise Barriers and Semi Noise Barriers and Semi Enclosures, Landscape Deck and Enclosures, Landscape Deck and Viaduct Planters Viaduct Planters Task Force on Task Force on Harbourfront Harbourfront Developments Developments on Hong Kong Island/ on Hong Kong Island/ Harbourfront Harbourfront Commission Commission 30 October 2012 30 October 2012

Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Embed Size (px)

Citation preview

Page 1: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Central Central ––

Wan Wan ChaiChai

Bypass (Bypass (““CWBCWB””) ) Tunnel (North Point Section) and Tunnel (North Point Section) and Island Eastern Corridor Link Island Eastern Corridor Link 

Aesthetic and Landscaping Design for Aesthetic and Landscaping Design for  Noise Barriers and SemiNoise Barriers and Semi‐‐Enclosures, Landscape Deck and Enclosures, Landscape Deck and 

Viaduct PlantersViaduct Planters

Task Force on Task Force on HarbourfrontHarbourfront

Developments Developments

on Hong Kong Island/ on Hong Kong Island/

HarbourfrontHarbourfront

CommissionCommission

30 October 201230 October 2012

Page 2: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Background

Information on noise mitigation measures 

Design theme – “Urban Floating Oasis”

Public consultation

Current progress

2

Contents

Page 3: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

3

CWB is: 

a strategic highway along the northern shore of Hong  Kong Island.

aiming to alleviate traffic congestion along Connaught  Road Central/ Harcourt Road/ Gloucester Road Corridor.

including a set of noise mitigation measures on Island  Eastern Corridor (IEC), comprising noise barriers and noise 

semi‐enclosures as required in the approved  Environmental Impact Assessment (EIA) report.  

General information

Page 4: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

4

Construction of CWB has commenced since December 2009

Anticipated commissioning year: 2017

Noise mitigation measures will be provided under :

Contract HY/2009/19 “Tunnel (North Point Section) and  Island Eastern Corridor Link”

(IECL Contract)

Commenced in January 2011

General information

Page 5: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

HY/2009/17HY/2009/17FEHD Whitfield Depot FEHD Whitfield Depot ReprovisioningReprovisioning Works Works

(active)(active)

CENTRALCENTRAL

WAN CHAIWAN CHAI

NORTH NORTH 

POINTPOINT

HY/2010/08HY/2010/08Tunnel (Slip Road 8 section)Tunnel (Slip Road 8 section)

(to commence)(to commence)

HY/2009/16HY/2009/16Provision and Laying Provision and Laying of Private Moorings of Private Moorings

In ABDTSIn ABDTS(completed)(completed)

HY/2011/08HY/2011/08Tunnel Buildings, Systems and Fittings, and Works Associated witTunnel Buildings, Systems and Fittings, and Works Associated with Tunnel Commissioningh Tunnel Commissioning

(to commence) (to commence)

HY/2009/18HY/2009/18Central Interchange

Central Interchange(active)(active)Tunnel in CRIIITunnel in CRIII(active)

(active) Tunnel in WDIITunnel in WDII(active)(active)

HY/2009/15HY/2009/15

Tunnel (CBTS Section

Tunnel (CBTS Section))

(active)(active)

HY/2009/

19

HY/2009/

19

Tunnel (NP Sect

ion)

Tunnel (NP Sect

ion)

and IECL

and IECL

(active

)(ac

tive)

HY/2009/11

HY/2009/11

North Point R

eclamation

North Point R

eclamation

(Completed)

(Completed)

Progress of the works5

Page 6: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

6

City GardenHarbour

Heights

Victoria 

CentreHenrietta 

Secondary 

School

Landscape deck/ noise enclosures/ barriers  under IECL Contact 

Page 7: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

7

Plan view

Location plan

3.5m H Vertical Noise Barrier9.5m H Noise Semi‐Enclosure

6.9 – 9.5 m H Noise Semi‐Enclosure

5.5m H Cantilever

ed 

Barrier w/  4.

5 m 

Cantilever

5.5m H Cantilevered 

Barrier w/ 1 m Cantileve

r

Page 8: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

8

CWB is a designated project under the Environmental Impact Assessment 

Ordinance (EIAO ), which requires all major new roads to follow the statutory EIA 

process to ensure that traffic noise can be alleviated to an acceptable level. 

According to the EIAO and related technical guidelines, noise level at sensitive 

receivers such as residence and schools have been assessed and measured.

According to the noise assessment in the EIA, the road noise levels at new roads 

will exceed the statutory limit of 70 dB and lead to the overall noise level increased 

by at least 1 dB. Hence noise mitigation measures are required, including 

installation of noise barriers and semi‐enclosures, to alleviate the traffic noise 

impacts on affected residential flats.

Noise barrier is designed according to requirement under Chapter

499 of EIAO, 

confirmed upon detailed analysis and assessment, as well as approval of 

Environmental Protection Department.

A section of IEC affected by CWB works will be demolished for construction of IECL. 

Needs and functions of

the landscape deck/  noise enclosures/ barriers 

Page 9: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Urban Floating Oasis

Design features and benefits

Page 10: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Design concept and vision10

Urban Floating Oasis

Inspired by the form of ocean waves

Soften the rigid and bulkiness of the bridge 

Add vibrancy to the harbour‐front

Enhance the harbour view and blend with the community  

“Green”

the waterfront of Victoria Harbour

East 

Allow smooth integration with the future harbour‐front open  space development

Apply a wavy pattern: weaving ribbon of greeneries floating  on the sky

Page 11: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Design overview11

Urban Floating Oasis

Landscape Deck

Wavy Pattern

Green Roof

Harbour

Heights

Page 12: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Design features and benefits12

Colour

Pattern

Greening 

Page 13: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

13

Optimum transparency noise  insulation panels will be used  along the residential zone. 

Jumble coloured

patterns will  run along the non‐residential  zone to add vibrancy.

Colour

Page 14: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Sky  blue  sound insulation panels 

(matt, translucent)

14

*The colours

shown are for reference only.

Green sound insulation panels 

(matt, translucent)

Light grey frames 

Noise double semi‐enclosure – View from within

Colour

Page 15: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Light transmittance and lighting

Design of the roof of the noise double semi‐

enclosures (near City Garden) features greening and  translucent panels.

Two major considerations :

Maximize use of daylight for eco‐friendliness 

Minimize impact on motorists and ensure traffic 

safety

15

Page 16: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Noise barrier panel material16

Sky  blue  translucent 

sound insulation panel

(matt finish)

Green translucent sound 

insulation panel

(matt finish)

Transparent sound 

insulation panel

(Clear)

Page 17: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

17

The wavy pattern

and jumble colours

symbolize dynamic and   vibrant harbourfront

and waves of the Victoria Harbour.

Noise  insulation panels away from 

residence printed with jumble 

colours

Pattern

Landscape  Deck  and  Green  Roof

with decorative wavy pattern 

Page 18: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

18

Landscape deck 

Different varieties of plants are introduced to provide abundant seasonal scenery.

Green roof

The design seeks to balance technical requirement such as lighting, aesthetic and 

impact on residents’

views. 

Taking into consideration environmental and maintenance factors,

the designer has 

selected shrubs and groundcover

species that are more wind, salt‐spray

and 

drought

tolerant.

Along viaduct planters outside the bridge

Plants with drooping quality and fine texture

Greening ‐

two locations

Page 19: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

19

Green Roof with variety of shrubs and 

groundcover

Landscape Deck

with variety of tree 

and palms

Greening

Page 20: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Public consultation (Nov 2011 to Mid 2012)20

Activity Date & Venue Participants Result

Briefing Session 

for City Garden29 November 2011Club House, City Garden

City Garden‐Management Office‐Owners’

Committee/residents

Support

Focus Group 

Meeting for 

Victoria Centre

1 December 2011CWB North Point 

Community Liaison Centre

Victoria Centre‐Management Office‐Owners’

Committee/residents

Support

Focus Group 

Meeting for 

Harbour

Heights

7 December 2011CWB North Point 

Community Liaison Centre

Harbour

Heights‐Management Office‐Owners’

Committee/residents

Support

Page 21: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Public consultation (Nov 2011 to Mid 2012)21

Activity Date & Venue Participants Result

Community 

Forum15 January 2012Causeway Bay Community 

Centre

Public members in North 

Point District and other 

parts of the territories

Support

Meeting with 

Eastern District 

Council (EDC)

1 March 2012 EDC members Support

Page 22: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

Current progress22

The Contractor is working with the project architect to  fine‐tune the design.

Fabrication of the structural components is being  arranged.

Construction of the landscape deck and noise mitigation  measures will commence in phases from 2013 onwards.

Schedule for completion in 2017.

Page 23: Chai Bypass (“CWB”) and Island Eastern Design for … · Central – Wan Chai. Bypass (“CWB”) Tunnel (North Point Section) and Island Eastern Corridor Link Aesthetic and Landscaping

End of the introduction23

Members’

views are welcome.