Terms of Reference for the consulting service
Consulting ServiceForDetail Engineering design and Cost
Estimation of Ramechhap Airport.Terms of Reference
1. IntroductionNepal is landlocked and mountainous country.
Because of its geography and geo-political boundaries, surface
transportation is very difficult and also inaccessible in some
parts of Nepal. Despite of advantages of surface transportation, it
has its own disadvantages. Air transportation is considered to be
advantageous in many aspects like travel time, safety, continuous
connectivity over land and water, relief and rescue operations and
many more. Furthermore, Air transportation is considered very
supportive to boost tourism industry as we are well known of the
fact that Nepal has high potential of Tourism Industry. Many people
from the world are willing to visit to observe the natural beauty,
highest peak of the world (Mt. Everest), flora and fauna,
mountaineering, trekking, rafting, pilgrimage visit and many more.
To facilitate the accessibility to local people as well as tourist,
a safe and quick mode of transportation is necessary which can be
fulfilled only by the Air Transportation. So, the Air
Transportation is very important mode of transportation for the
development of nation.
At the current situation, there are a lot of demands for the
construction of small (STOL) airports within the country. Some new
demands of airports are also registered for tourist destinations
and commercial areas. Civil Aviation Authority of Nepal (CAAN) has
allocated budget for the survey and detail design of new small
(STOL) airports. So, for the construction of new small airports, a
detail survey covering all the required parameters, a set of
adequate technical manpower is necessary. Due to the lack of
adequate technical manpower in the Civil Aviation Authority of
Nepal (CAAN)/ Aerodrome Engineering Department (AED), CAAN/AED
intends to hire a competitive consulting firm for the Survey and
design of new small airports in the country where necessary.
2. BackgroundCivil Aviation Authority of Nepal (CAAN)/ Aerodrome
Engineering Department (AED), CAAN/AED (hereinafter referred as
CAAN) intends to hire a competitive consulting firm for utilizing
their service experiences in the fields of designing and planning
of Airport Projects. Improvement of airport is necessary for
increasing the capacity of airport in terms of aircraft and
passengers. So to facilitate the general people with better airport
infrastructures, Ramechhap Airport at Manthali, Ramechhap District
is to be improved and designed to meet the requirements set by CAAN
and ICAO.
3. ObjectivesThe main objective of the consulting services is to
conduct a detail engineering design of the Ramechhap Airport,
prepare detail design of drainage system and cost estimate for the
construction. The consultant is required to perform the following
jobs.
Conduct soil investigation and evaluation of Airport Area, Study
of material availability survey, Structural design of Runway,
Taxiway and Apron and river training works, Land-use planning for
property within the airport boundary, Environmental and Social
Impact Assessment due to improvement of the Airport, Preparation of
Master plan indicating Drainage System Economic and Financial
Analysis Preparation and Documentation of all required Drawings,
cost estimates, technical specifications and Reports
4. Scope of WorkThe consultant shall carry out the necessary
field works of the airport. The consultant shall be responsible for
accuracy, interpretation, analysis of all data received and shall
give conclusions and recommendations based on their study in their
report. The scope of work to be carried out by the consultant
includes but not limited to the following:
4.1 Topography survey
Traverse survey shall be done from two known survey monuments
and close to next two known points. All permanent ground monuments
including supplementary survey control points shall be surveyed for
traverse survey. Survey procedure shall follow the standard
practices and principles with errors within tolerable limits.
Establishment of Survey monuments / Bench mark Close Traverse
survey for airport periphery Topographical survey of the Airport
and detailed topographical map shall be prepared in 1:1000
scale.
4.2 Soil Investigation and Evaluation:
Soil survey shall be done to determine the arrangement of
different layers of soil in relation to the subgrade to determine
the physical properties of soil and to indicate the ground water
table. Slope stability analysis of the site shall be carried out
and the finding and recommendation shall be given with the location
of debris flow and other possible obstruction to the proposed site.
Laboratory investigation of soils shall include Atterberg's limit
test, CBR, Grain Size analysis, Specific gravity and moisture
content etc. The Soil survey for borrow material and pavement
materials shall also be conducted.AreaSpacingDepth
Runways and TaxiwaysRandom across pavement at 68m intervalsCut
areas-10ft (3.5m) below finished gradeFill areas - 10ft (3.5m)
below existing ground
Other areas of pavementOne boring per (1000 m2) of areaCut
areas-10ft (3.5m) below finished gradeFill areas - 10ft (3.5m)
below existing ground
Borrow areasSufficient tests to clearly define the borrow
materialTo depth of borrow excavation
4.3 Hydrological and Metrological Study
Climatic study: General climatic study of the area shall be
carried out and all relevant meteorological (Rainfall and
Temperature) data and recommendation shall be presented. Study of
the river morphology: The river system of the area shall be studied
and presented in the report with necessary recommendations.
Analysis of precipitation data of nearest Hydrological centre and
wind flow Information necessary for the design of the side drains
and protection works as well as preliminary design of cross
drainage structure if needed
4.4 Air Traffic Forecast Study, take off path and obstacles
At each stage of the Forecasting, different comparisons shall be
done by using any available data and statistics published by
similar growing airports, to check if the forecast gives sensible
results. The first-year growth is compared with known airline
plans; the first two years are compared to the short-term forecast.
However, such comparisons remain more a matter of judgment than a
precise numerical correlation.
4.5 Design and Drawings
The scope of work to be carried out by the consultant and
activities covered by design and reporting work shall include but
may not be limited to the following:
4.5.1 Design: Design of Runway, taxiway, Apron as per CAAN and
ICAO recommendations with balancing earthwork as far as possible.
Structural design of pavement of runway, taxiways and apron. Design
of retaining structures and river training structures if necessary.
Design of a proper drainage system.
4.5.2 Drawings: Topographic map at scale 1:1000 Longitudinal
profile at 1:100 vertical and 1:1000 horizontal Cross-sections at
1:200 both vertical and horizontal. Complete drainage system
drawings with a drainage masterplan. Location of airport markings,
lighting and signage
4.6 Land-Use Planning:
Consultant shall produce proper land-use plan for property
within the airport boundary with existing conditions and
improvement recommendations.
4.7 Environmental Impact Assessment:
While designing the airport structures, the consultant shall
assess the potential damage to the environment and shall attempt to
mitigate or minimize such damage and shall suggest appropriate
measure in design.
4.8 Economic and Financial Analysis:
The consultant shall perform economic and financial analysis of
proposed project and give recommendations accordingly.
5.Composition of the Study Team
The study team for the specified job to be completed shall
consist of the professionals with specialization and other staffs
as cited below:
Professionals1 Airport Planner ( Civil Engineer),Team leader2
Civil Engineer/Pavement Engineer3 Geo-technician/4
Surveyor/Quantity Surveyor.Supporting Staffs1 Laboratory
Technician2 Computer Operator3 Office Assistant and others as per
need.
6. General Requirement of Consultants Services
The consultant will perform the service to the satisfaction of
CAAN and will provide all the requisite staff, equipment, supplies
and logistic supports for the performance of the work. During the
service the consultant will cooperate fully with CAAN and also work
in close coordination and consultation with Civil Aviation Office
and other stakeholders. The Consultant shall act at all times to
protect the interest of the client and shall carry out the services
with due diligence and efficiency.
7.Report PreparationThe draft report and final report shall be
prepared and submitted according to the followings. Inception
report shall be submitted within 15 days of signing of the contract
document.i. Inception report:Two copiesii. Draft report:Two
copiesiii. Final report:Five copies
8. Mode of Payment The interim payments for the consultancy
services shall be made in the following manner.
i. Submission of the Draft Report 60% of the Contract Amountii.
Submission of the Final Report 30% of the Contract Amount
9. DURATIONThe tentative duration for the work describe in the
scope of work is 60 days from the date of agreement with the
Consulting Firm.
10.Contact AddressCivil Aviation Authority of NepalAviation
Engineering DepartmentBabarmahal, Kathmandu
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