Site Plan for Rathmalana Railway Station - Amali Pathiraja

INTRODUCTION
Easy Accessibility, Walking, Feel adventure water and beach gaming, Enjoying food and beverage,
Relaxing and Shopping
RATHMALANA RAILWAY STATION AND ITS NEIGHBORING PART
Individual site planning project

INTRODUCTION
underserved
settlement
Temporary bus
Stand
Railway Station
Temporary three Wheel Park
?
2017 2020
Prevailing trend and pattern
Available Issues need to address
Public Perceptions
Key reason : Not having highest
and best use of the site, So having
development potential
Justification on need a planning
and design intervention
PROPOSALS FOR
Available Issues need to address
Public Perceptions
Prevailing trend and pattern
Source : Google maps
Redevelopment of
railway stations along
the Coastal line
Marine drive project
Colombo Suburban
Railway Project

Selected Scenario
Alternative Evolution
Project A- Community
improvement project
Project B- Recreational based
transport project
Project C- Tourism based
project
Project D- Commercial based
project
Project E- Proposed project by
Urban Development Authority
Selection Criteria Considered factors Project A Project B Project C Project D Project E
Legally Permissible
UDA regulation
Other related acts
Financial Feasible
Net Present Value [2047] Rs. 744,074 Rs. 13 million Rs. (48 million) Rs. (31 million) Rs. (46 million)
Break even point
27 years 23 years >30 years >30 years >30 years
Physically Possible As mentioned
Socially Acceptable Survey
Land use compactible Compatibility and conflict
Alignment with objective of
the client
Client objective

UDA Regulation
Adopted for the Design
Plot coverage Plot coverage
60%
Built-up
40%
Open space
60%
No of Floors -1
FAR – 0.53
Land Extent 3.78 Acres
Site Extent 5.16 Acres + Sea
Main Access Road Station Road
Width of the Main Access
Road
4.2m
Client / Ownership Ceylon
Government
Railway(CGR)
Plot coverage
60% - Built-up
40% - Open space
Rare Space = 3m
Need to Be : Road width = 4.5 m
Commercial area -6478.2483 sq.m.
Commercial use _ FAR – 0.53
Commercial use _No of Floors -1
Road Frontage = 6m
Building Line = 12.19m (40 feet)

Coast Conservation Act
15 m
30m
Vegetation cover
Restricted ;
Tourism activities
Tsunami housing
Set Back (Buffer Zone) exemptions are determined by the Coast
Conservation Advisory Council for the following development activities within
the coastal zone.
(i) Nationally important projects
(ii) Fisheries related buildings and infrastructure
(iii) Tourism related development projects within the declared tourism zones.

Railway Department
Coastal railway line should be 5 meters from the border of
the railway line. The railway line to the Rathmalana
Railway workshop and the timber corporation premises
should be more than 3 meters from the boarder. (Subject
to the recommendations of the Railway department)
Railway
reservation
Railway line

Traffic Flow
Total Traffic flow on Marine drive per day 33302
Standard of maximum traffic impact rate from
commercial area
10%
Standard of maximum traffic flow from commercial area 3330
Assumption: traffic in = out 1665
Trip attraction rate of the commercial area 15
Optimum floor area for Commercial use (sq.m.) 11100.7
30% of trips from Railway station to site 2304
in =Out 1152
Floor area (sq.m.) 7680
Total maximum Floor area for Commercial use (sq.m.) 18780.7
commercial area
18780.7 sq.m.
Walk-able distance between two uses is 50m.
Maximum commercial floor area to be recovered the on traffic volume of equal or
less than 10% . Maximum commercial floor area to be recovered in the site is
18780.7 sq.m. without disturbance.

Scenarios :
Environment Aspect : Surface Run-off
Built
up
Open
space or
Green
Surface
Runoff (Q)
m^3/h
0% 100% 111.7
10% 90% 178.8
20% 80% 245.8
30% 70% 312.8
40% 60% 379.8
50% 50% 446.9
60% 40% 513.9
70% 30% 580.9
80% 20% 648.0
90% 10% 715.0
100% 0% 782.0
Discharge Culvert
rate is 451.80
m^3/h.
Within this ranges are the suitable for propose development to reduce
over surface runoff under present discharge culvert rate.
50%
Built-up 50%
Open space
Man Hall
Drainage Line
SEA
50% of buildup area is the highest
and best use for the proposal.

Scenarios :
Environment Aspect : Temperature
Built up
Open
space or
Green
Temperature
difference
0% 100% 1.51
10% 90% 1.67
20% 80% 1.88
30% 70% 2.15
40% 60% 2.51
50% 50% 3.01
60% 40% 3.76
70% 30% 5.02
80% 20% 7.53
90% 10% 15.06
100% 0% 51.63
70%
Built-up
Open space
Existing :
Design aspect : ventilation
Skyline of the coastal line

Scenarios :
Criteria Results
Regulation Plot coverage
60% - Built-up
40% - Open space
Commercial area -6478.2483 sq.m.
Traffic Flow Commercial area-18780.7 sq.m.
Surface Run-off 50% - Built-up
50% - Open space or Green
Temperature 70% - Built-up
Trend pattern No of floor – 2
By considering all the criteria;
Built-up
40%
60%
Open space
No of Floors -2
FAR – 1.53
Height and best use :
60% - Built-up

Detail design
Building orientation and space allocation
60%
Built-up
60%
Built-up
60%
Built-up
60%
Built-up
40% 40%
40%
40%

Detail design
Objectives
→ Enhance the Passenger and Visitor Satisfaction
→ Better business and enhance the economy
→ Community integration
Goal : Obtain highest and best use of the Site.
Make supportive
accessibility for travellers.
Make supportive income generation
sources
Better place to visit and enjoy
Provide proper service facilities for
train commuters.
encourage people to take public
transport.
parking facilities
Vision :
Walking, feel adventure water and beach gaming,
enjoying food and beverage, relaxing, and shopping

WBS and Time schedule
WBS and Time schedule
Time duration of the project is one and half.03 rd of July 2017 31 st of December 2018

Assess the Financial Viability and financing
Financial feasibility and Investment plan
Cash flow
BOQ
Construction cost of the project LKR 429,534,277.10
Operation or construction period 1 and half year
Funding Source Investment
(Built-Own-Transfer )
Expenditure - 2047 Rs. (5,547,552,240.98 )
Income - 2047 Rs.
9,242,210,942.72
NPV -2047 Rs. 14,653,641.05
Breakeven point 2020 ( 4 years)
Internal Rate of Return (IRR) -
2047 67%
Rate of Return (ROR) - 2047 41.56 %
Rate of Investment (ROI) 3.63
Funding Source Amount Share
ADB ( Fund) Rs. 450,000,000.00 35%
CGR ( Land ) Rs. 825,600,000.00 65%

Storm water management plan
Surface Run-off
Discharge Culvert rate (Q) m3/h Present Surface runoff (Q) m3/h
275.18 384.234
Future Surface runoff (Q) m3/h Required Culvert capacity (Q) m3/h
483.3985706 208.21
Present
Impact on proposed project
Strategies:
• construction of water retention pond
• landscaping grass paved land
• planting trees, pavement with holes
• connect to the exist culvert and drainage line
Man Hall
Drainage Line
SEA

Water retention pondSea
Man Hall
Drainage Line
Sea Beach
Road
Water retention
pond
Sea
Man Hall
Drainage Line
Station
Road
Multi storey
Car Park
Service area
Swimming Pools
Commercial area
Railway
Station
( Flat Form)
Railway
Station
Road and Bus
Station
132 m3/h
72 m3/h + 10 m3/h
78m2
89 m3/h
24 m3/h
30 m3/h

Solid waste management plan
Liquid waste management plan
Existing Sewerage generation in the Site 25 m3/day
Sewerage generation on proposal (2040) 429m3/day
Source: National Water Supply & Drainage BoardSource: National Water Supply & Drainage Board
Pumping station no. PS 10
Normal flow 1081.5m3/day
Peak factors used;
For domestic flow 2.5
For industrial flow 3.1
Accordingly, peak flow to
the PS 10
3911m3/day
Gap (Extra) of flow Peak flow - Normal flow
=2829.5m3/day
Projected waste water flow
of the proposed site
planning project in
Rathmalana Railway
station
429.12 m3/day
(All the flows were calculated for year 2040.)
Source: National Water Supply & Drainage Board
PS 10
Treatment
plant
Sea

Energy consumption management plan
Energy consumption management plan
Strategy: Solar Panel to reduce the electricity cost by using
existing natural resource.
Year Use l/d
2017 Railway station 500
Shanties 640
Water requirement of the site 1140
2030 Water requirement of the site 235,500
Water management plan
Area of the solar panel required
for the Railway station (m2)
284 m2 (3056.951
sq.ft.)
Annual serving in CO2 emission 52730.04 kg
Average Annual serving in
Electricity bills
Rs. 2,759,130.00
Average rate of the Building Energy Index (BEI) to install a
solar panel
100 unit/sq.m./year
Building Energy Index (BEI) of an energy efficient building 90-120 unit/sq.m./year
So, Building Energy Index (BEI) of Railway station building 120 unit/sq.m./year
Building Energy Index (BEI) of Railway station building per
month
120/12=10
Building area of Railway Station ( unit/sq.m./year)
11000 sq.ft. (1021.9
sq.m.)
Total monthly energy requirement (kWh) (1021.9*10 ) = 10219
Total requirement per day (kWh)
Note: Assuming 6 hours of solar harvest per day is between
9.00 a.m. and 3.00 p.m. (Source: JLanka Technologies (Pvt)
Limited).
10219/30 = 340.6
340.6/6 = 56.8 kWh
1m2 = 200W (Source: Standard; JLanka Technologies (Pvt)
Limited).
56800/200
Area of the solar panel required for the Railway station (m2)
284 m2 (3056.951 sq.ft.)
Source: National Water Supply & Drainage Board

Transport Impact Assessment (TIA)
Road Link Type
Connection To
Width (M)
Section
Length (m)Site Main Corridor
Sea beach
Road /
Marine drive
Major road Yes Both end 11
300m
Station
Road
Minor road Yes
Both end
6 1300
0
1000
2000
3000
4000
5000
6000
7:00 8:00 9:00 10:00 11:00 12:00 13:00 14:00 15:00 16:00 17:00 18:00 19:00
Hourlytrafficflow
Time
Average hourly traffic flow distribution on Marine
Drive
18%
22%
30%
16%
1% 1%
1%
2%
8%
1%
Traffic Flow Composition
Moter cycle
3Wheeler
car/saloon
Utility (Van/jeep)
Light (Good vehicle)
Medium (Good vehicle)
Heavy (Good vehicle)
Multi-axle (Good vehicle)
Mini bus
Large bus
Service vehicle
Tractors
Bicycle
Traffic Flows
Source : Manual classified survey (MCC) of Transport and Logistics Department, University of Moratuwa and
own survey
Station Road
Sea Beach Road

Traffic Management
Total commercial area (square
meter)
16224.86
Trips generated per 100 square 15
Total trips from commercial units 2434
Total number of trips will be
generated from the proposed
development
2434
Existing total trips per day in Marine
drive road
33302
Generate rate of traffic flow from the
proposed development
7%
Parking requirement
Parking
requirement
Standard(Motor
vehicle)
Commercial
Vehicles
Cycle
No.ofUnits
No of Space requirement
Total
Standard(Motor
vehicle)
Commercial
Vehicles
Cycle
UDA
requirement 16 2 - 1 16 2 - 18
Public
perception
Survey
70 3 100 1 70 3 100 173
Require
Motor
cycles (1/3)
64
Total 255
Source : Schedule 7 (As per regulation No. 37(2) a) – Parking Space Requirement DMMC
Multi storey car park Multi storey car park Three wheel park

15m
15m
Pedestrian crossings
Lamp posts
Bus stops
Proposed lamp and Bus halt
• Pedestrian crossings
• Bus halts (BH) Bus shelters (BS) and
bus bays (BB)
• Lamp posts
Public transportation
Parking
Three wheel park
Bus Station

Environment Impact Assessment (EIA)
Positive impact Negative impact
 Attractive place
 Safety reduction and
reduction of
vulnerability
 Waste water Generation
 Noise and Vibration
 Surface water runoff
 Tide (low/high) and Coastal erosion
 Dust generation during the construction
period
Solid waste dumping
Damage house from Coastal erosion
Discharge waste water

EMMP (Environment Management and Monitoring Plan)
Key Impacts Mitigation Measures Monitoring actions Responsible parties When
1 Dust generation during the
construction period
Use dust control measures
such as spaying water in the
dry seasons during
construction period
Monitoring during site inspection
and feedback from the community
around the area
Contractor
CGR
Construction stage of
the project
2 Waste water Generation Apply the drainage plan for
release waste water
around the area
CGR
Investor
Initial stage and design
stage
3 Noise and Vibration Professional consultation to
ignore or reduce the impact
via construction, use
control measures
around the area
CGR
Investor
During the construction
and after project
4 Surface water runoff Use water retention pond and
drainage for discharge the
runoff.
around the area
CGR
Investor
Initial stage and design
stage
5 Tide (low/high) and Coastal
erosion
Plantation , landscaping and
construction of retention wall
and Professional consultation
and feedback from Professionals.
CGR
Investor
Initial stage of the
project and after the
project
6 Accuracy of estimations Re-check by investor's
estimation
Monitoring during preparation of
project proposal.
CGR
Investor
Initial stage of the
project

Social Impact Assessment ( SIA )
Positive impact Negative impact
 Better livelihood for surround
community.
 Better place to visit, to spend
time, to enjoy, for gaming, for
mind relaxation with entertainment
via new experiences including
high transportation.
 High social integration
 Enhancement of economic
benefits
 Improvement of the quality of
mobility and accessibility
 Localized environment risk
reduction ( such tide and soil
erosion )
 Walkability
 Safety of settlements
 Dust exist in construction period
 Noise pollution in construction period
 Safety issues at construction phase
 Over load passenger transportation
can case for accident
 Demolish underserve settlement and
re-settlers
 Temporary unemployment due to
loss of job opportunity
 Break the social relationship by
relocation
Scale 1:1
Railway Reservation
Shanties
Living near Railway Line

Impact Mitigation measures
Dust exist in construction period
Use the mitigation equipment (Safety glows , mask) and advice form supervisors,
Watering to prevent dust
Noise pollution in construction period Provide ear protecting equipment for workers
Safety issues at construction phase Use the mitigation equipment and advice form supervisors , Notice of civil works
Over load passenger transportation can
case for accident
Regulation and guidelines for safety of the passengers
Demolish underserve settlement and
resettle
Relocate and provide the houses, before demolish , Consultation with affected
persons to monitor mitigation measures
Lose of job for re-settlers
Relocate the people in similar environment or near to this site, Consultation with
local communities to discuss and mitigate any inconvenience, Consultation with
affected persons to monitor mitigation measures
Break the social relationship by relocation
Relocate all in similar or near place, Consultation with local communities to discuss
and mitigate any inconvenience
Human and vehicular mobility
Consultation with affected persons to monitor mitigation measures, Consultation with
local communities to discuss and mitigate any inconvenience
Traffic congestion Consultation with local communities to discuss and mitigate any inconvenience

Initial Risk Assessment and Risk Response plan
Initial Risk Assessment and Risk Response plan
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IMPACT
PROBABILITY
Risk Assessment Chart
Low Medium High
LowMediumHigh
Risk sector %
Technical, quality,
performance 22.29%
Financial and economic 22.72%
Project planing, management 6.58%
External risks
48.41%
High
Medium
Low
Risk Registry
Sector
Risk Risk
Probability(P) Impacts (I) P X I value Sector weight %
Technical, quality,
performance
Falier of Construction R1
5 9 45 315 22.29%
Delay of construction activities R2 5 7 35
Less experience/less knowledge construction team R3 6 7 42
Lack of Materials R4 2 3 6
Delaying of materials R5 5 8 40
Labor issues (no adequate labor power) R6 7 8 56
Estimating and/or scheduling errors R7 5 8 40
Risk Management Plan

Stakeholder analysis and Communication plan
Stakeholder analysis Position Map and
Potential key alliances
knowledge level

Stakeholder analysis and Communication plan
Communication plan
Com.ID Stakeholder /audience Purpose / Phase/communication
Information (What kind of information
will be provided?)
Mode/channel
Frequency (With what
Frequency?)
Responsibility
(Responsible party)
1
Ceylon Government Railway ( CGR
)
To inform and share ideas Draft project proposal and technical
report, Draft design, draft cost
estimation, feasibility reports
Email, Skype, Face to
face meeting with
leadership,
presentation
At each stage of the project Investor
2
Asian Development Bank (ADB) -
Investor
To attract investment
To inform and share ideas
Draft project proposal and technical
report, Draft desgin, draft cost
estimation, feacibility reports
Email, skype, Face to
face meeting with
leadership,
precentation
Investor Ceylon Government
Railway ( CGR )
3
Dehiwala Mount Lavinia Municipal
Council (DMMC)
To inform To
identify the legal aspects of the project
under the DMMC development plan
To get and submit applications and to obtain
permissions regarding building design of the
site To
check the building design is align with the
regulations or not
To dicussed on property rate with proposed
project
report, Draft desgin draft cost
estimation, Survey plan
Face to face meeting At the initial stage of the project
and as per the requirement
Ceylon Government
Railway ( CGR )
4
Urban Development authority
(UDA)
To inform To
identify the legal aspects of the project
under the DMMC development plan
To get and submit applications and to obtain
permissions regarding building design of the
site To
check the building design is align with the
regulations or not
To discuss and to enter an agreement on
Urban develoment project for expansion of
Station road and Resettlement project of
report, Draft desgin, draft cost
estimation
Face to face meeting As per the requirement Ceylon Government
Railway ( CGR )
0
10
20
30
S1
S2S3
S4
S5
S6
S7
S8
S9
S10S16
S17
S18
S19
S20
S21
S22
S23S24
Interest - Power
I*P

Site Plan for Rathmalana Railway Station - Amali Pathiraja

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