Site Planning of New Town Kolkata Residential Lot - MTIP Sem I Studio

Site Planning

INTRODUCTION

Action Area 2-C, New Town, Kolkata AIM

REGIONAL SETTING

To organize an area of land to fit a residential program for its development which is efficient, expresses the character of the site & provides attractive spaces to use.

INDIA WEST BENGAL STATE

NEW TOWN KOLKATA DEVELOPMENT AUTHORITY LOCATION OF SELECTED SITE

OBJECTIVES 1

WAY TO NSCB INTERNATIONAL AIRPORT – 4.8 KMS

To analyze various aspects of site planning and stages in the site planning process for a residential area using pre-designed residential flats as a basic unit.

To study the location, linkages, physiographical features, and Infrastructure facilities for basic understanding of how to handle the site for further development which would be the smallest representative of a larger unit – The City 3

SELECTED SITE

VIP

To envisage the understandings of basic regulations such as building bye laws, FAR, ground coverage, development control regulations etc

To deliver a planning proposal analyzing how natural factors (landscape), socio-economic forces (planning) & technological functions (architecture & engineering) interact in the design process deriving the form, space, and scale to the site .

► De novo Urban Fringe of Kolkata ► Exclusive Location ► Developing region with a blend of Residential, commercial cum retails complexes, corporate parks and institutional entities. ► Proximity to public transport facilities ► Potential Residential Cluster zone

APOLLO BUS STOP

2

Action Area - ii

KOLKATA METROPOLITAN AREA

4

Action Area - I

METHODOLOGY Source: Site Analysis

by James A.Lagro jr.

Why NKDA Action Area II-C area?

Action Area - iii

NAZRUL TIRTHA METRO STATION SEALDAH RAILWAY STATION

Sealdah Railway Station RAJA BAZAR

NEW TOWN KOLKATA: This is fastgrowing planned satellite city of Kolkata encompassing an area of 93.9 Sq.kms , New town is the new definition of Urban life in Kolkata.

This new land of possibility provides an adobe to over 15 lakh people(1612/sq.km).

The wide range of modern-day infrastructure facilities like schools, health care centres, commercial plazas, IT Hubs and eco-parks make New town a preferred address for the people.

SITE LOCATION & ACCESSIBILITY:

(Social)

SITE SELECTION CRITERIA 1.CLARIFYING PROJECT OBJECTIVE AND REQUIREMENTS ► (Land uses or activities Housing, commercial, real estate, mixed, facilities) 2.DETERMINE SITE SELECTION CRITERIA ► Site Factors- Size and context, access and utilities, Landuse Regulations ► Contextual factors- transportation, physical constraints, hazards 3. GATHER SITE DATA & SELECT 4 POTENTIAL SITES TO EVALUATE EACH SITE SUITABILITY ► Capacity zoning usable space utilities ► Compatibility physical constraints, community, character

RANK THE EVALUATED SITES & SELECT THE BEST SUITABLE SITE

SITE IMAGES

ADMINISTRATION Action Area – II C, Majarhati, New Town Kolkata Planning Authority, North 24 Parganas District West Bengal 700156 COORDINATES 22°37'26.5"N 88°27'53.9"E ALTITUDE – 0.4 m (1.3 ft) AMSL

ACCESSIBILITY: BUS STAND 300m from Apollo Bus stand, 7kms from New Town Bus Terminal METRO TRANSIT 7 kms from Nazrul Tirtha metro station & 1.6 km upcoming WBHIDCO metro

Group – 06 |

RAILWAYS 14 kms from Sealdah Railway station at Raja Bazar AIR PORT 4.8 kms from Netaji Subhash Chandra Bose International Airport

01

Site Planning

SITE INVENTORY - PHYSICAL KOLKATA SEISMIC HAZARD MAP

Action Area 2-C, New Town, Kolkata Topography

Land form: located on the western fringe of composite HooghlyPadma-Meghna Delta region.

Seismic zone: The site lies over the Bengal Basin and lies at the boundary of the seismic zones III and IV of the seismic zonation map of India.

Hydrology

Soils Characteristics

Surface Water: The selected site is 10.2 kms far from Hooghly river and there are no rivers or streams in the immediate vicinity of the site. Eco park lake 3 kms far is the nearest surface water area.

Ground water: post monsoon depth 9 metres bgl to pre-monsoon 15 metres bgl required to extract ground water. Major ground water issues: KMC has reported sporadic occurrence of Arsenic beyond permissible limit (0.05mg/l) in ground water in a few places. Ground water tapped by open wells in the marshy/ swampy lands is hydraulically connected to the surface water bodies and is biogenically polluted.

Clay / sand

SLITY CLAY WITH DECOMPOSED

WOOD

SLITY CLAY

The area is blanketed by an Younger alluvial soils deposited by the Hooghly and its tributaries. These alluvial sediments are of quaternary age.

The average infiltration is about 1.5 cm/hour, which is very low

ELEVATION

Climatic Conditions

Wind Rose Diagram ASPECT

The Windrose diagram indicates that the predominant wind direction for summer months of march to June is from South-south west while wind direction is north-north easterly during the winter months of November to February, when calm conditions are also observed.

Sun Path Diagram

Average Monthly Temperature:

Average Monthly Rainfall: SLITY SAND WITH TRACES OF MICA CLAY

Geotechnical Characteristics of Soil: The soils are slightly alkaline with average pH 7.21, average concentrations of sodium, potassium, calcium and magnesium are 0.18%, 0.74%, 0.36% and 5.12% respectively.

The levels of phosphorous, nitrogen and organic matter are low to medium.. they are immature and have slightly weak profiles for bearing capacity and stability for shallow foundations. So Pile foundations are needed as soil is porous by its loamy (equal parts of sand and clay) nature.

Humidity Comfort Levels:

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02

Site Planning

SITE INVENTORY – BIOLOGICAL & DESIGN CONSIDERATIONS SUN PATH DIAGRAM

Action Area 2-C, New Town, Kolkata DESIGN CONSIDERATIONS

Building Positioning:

Design Considerations based on Climatic conditions

WINTER

Radiation rose diagram Sun Path Diagram refers to the apparent significant seasonaland-hourly positional changes of the Sun through out the year. As per this diagram, orientation of buildings of selected site states North-west to south east orientation of buildings.

Perfect positions and angles for the most economic and sustainable energy use - These diagrams investigate the perfect positions and angles for the most economic and sustainable energy use

Staggered placement of the building blocks can help in proper and efficient movement of winds and can also help in Sunlight Distribution

SUMMER

Hot winds can be blocked by planting Deciduous trees which have high foliage in summers and shed in winters can be used

Building Orientation

FLORA & FAUNA There are only 8 canopies within the site. As per Indian Forest Act, 1927, 5 samplings for each cutdown has to be replanted in the site. The selected site precincts consists of low level agricultural and barren land. Only one crop of paddy with kharif used to be cultivate with poor production.

Regarding Fauna, only common domestic animals are found nearby. The selected site doesn’t habitat any endangered species of flora & Fauna. No wild life sanctuaries are located within 25 kms.

Chintomani Kar Bird Wildlife sanctuary is 28 kms from the site

openings and Open Use Light colored and locally available Massive Building materials to cool roofs to courtyards can reduce Humidity levels, Windows in eastern & western minimize conducted heat gain side can promote natural heating Design Consideration based on and lighting of the building

Topography & Hydrology: NOISE LEVEL DIAGRAM

Site has 1.6 metres slope variation and Aspect map can be utilized for laying of Water Supply, sewerage & Storm water utilities. Due to arsenic content & site proximity to STP(220m), ground water consumption can be avoided.

Design Considerations derived from Geological and Soil characteristics: 1.Create a Flexible Foundation 2. Counteract Forces with Damping using pendulum power or Vibration control devices - Tuned Dampers attached to beams .

3.

Shield Buildings from Vibrations - Concrete and plastic rings are placed underneath to channel shockwaves around the building 4.Reinfroce the Building's Structure 5.Use Earth Quake Resistant Materials

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03

Site Planning

SITE INVENTORY : SOCIO-ECONOMICAL PROPERTY DEMAND TRENDS Average rate per sft. in Action area 2 is at 5000/- and Rental yield ranges at 4.2 %.

Subdued residential demand and slow pace of development in this area since the last decade made this area less occupied.

Action Area 2-C, New Town, Kolkata

LANDUSE AND TEMPORAL CHANGES 2005

2020

2

1

DEROZIO MEMORIAL COLLEGE

4 6

1

3

BABLATALA MORE

5

6

STP

2010

3 BANDHAN BANK

2

4 2015 5

DRINKING WATER SUPPLY

Source: https://magicbricks.com/NewtownKolkata2

An Integrated water treatment and Distribution plant of HIDCO with a capacity of 20mgd located in action area 1 at a distance of 9 km. The water is supplied to the buildings by a 10-50mm dia ferrule connection or a Bulk connection for larger housing complexes ELECTRICITY SUPPLY 33/11 kv Action area – IIC substation of WBSEDCL is located 300 metres near to the selected site .

STORM WATER MANAGEMENT NKDA implements network of box drains for draining of rain water from the street leads to WTP

LOTUS HOSPITAL

NKDA PARK

Inferences: Action Area – 2 c of NKDA is free from the ills of unplanned growth, it checks the chaotic urban sprawl in the fringes planed in environment friendly with large area of open green land, parks and plantation etc. & a good network of bicycle tracks, pedestrian paths, will link residential area to local market, primary schools and other community life. From the temporal maps we can observe the decrease in agricultural land use and increase in residential use as time lapses.

AAI RESTRICTIONS

UTILITIES & PROXIMITY: SEWERAGE NETWORK 31 MLD capacity sewerage treatment plant executed by HIDCO public health engineering dept. is situated 220 metres east to the selected site.

1.

2.

3.

4.

5.

6.

SOLID WASTE DISPOSAL: An integrated SWM facility is implemented

by NKDA with proper monitoring of collec-tion & disposal, mechanical road sweeping using VTS(Vehicle Tracking System). The nearest solid waste landfill site is Bidhan Nagar waste disposal ground 10.2 kms far

Flight or Basic Strip Transitional Surface Inner Horizontal Surface Conical Surface Outer Horizontal Surface Landing and Takeoff Funnel

In India, in accordance with INDIAN AIRCRAFT ACT & Govt. Statutory Rule GSR 751 (E), this site falls under 6. Inner Horizontal Surface - Dist. 315mtrs to 4Kms which has Height clearance restriction Appx 45 m Above Ground Level Source: https://nocas2.aai.aero/nocas/CCZMMAP.html

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04

Site Planning

AREA CALCULATIONS:

Action Area 2-C, New Town, Kolkata

OVERVIEW Total area of site Type of Development Gross Density of Site (Du’s/Ha) Average Household Size TOTAL DU'S ( HECTARES X GROSS DENSITY) TARGET POPULATION ( TOTAL DWELLING UNITS * HOUSEHOLD SIZE)

5.5 hectares (55530 Sq.mtrs) Residential 200 4.5 1100 4950

HOUSING AREA FACILITIES Provisions For Housing Area Population Of 5000 - (Required As per Urdpfi Standards) Facility Total Area (sq.m) Pre-primary & Primary School 2000 Aanganwari -Housing Area/Cluster 300 Community Room 750 Religious Facility 400 Milk Distribution Convenience Shopping Total Area for Housing Area Facilities DEDICATED GREEN SPACES Type Housing Area Park Residential Unit Play Area Totlots Total Area for Dedicated Green Spaces

150 1500 5100 Area(sq.m) 5000 5000 2500 12500

DEVELOPBALE RESIDENTIAL AREA Area For Facilities 17600 sq.m Net Residential Area after deducting 37930 sq.m facilities & Dedicated Green Spaces AREA DISTRIBUTION TYPE Area (sq.m) % Plotted Housing 5000 15 Grouped Housing 32930 85 PLOTTED DEVELOPMENT Area for Circulation – 20% Area left for plotted Development Land Plot Total Permissible Distributi Typology Available For Area Plots Du's In Each on % Plots Types Sqm Derived Plot Type - 1 75 3000 150 20 3 Type - 2 25 1000 250 4 6 ESTIMATED DWELLING UNITS IN PLOTTED HOUSING

GROUP HOUSING Area for grouped housing (85%) Area for circulation (20%) Net ground area left for grouped housing Floor Area Ratio (as per NKDA DCR) Available Built-up area for grouped housing

32930 -6586 26344 3 79032

Additional FAR for EWS as per (NKDA DCR) Addnl. Built up Area for EWS (Net Residential Area of Site * FAR * 10%) Total buildable area for grouped housing + EWS

TOTAL SITE AREA

5.55 HECTARE

RESIDENTIAL

CIRCULATION

FACILITIES

3 Ha(55%)

0.85 Ha(15%)

1.7 Ha(30%)

10% 11379 90411

GROUPED

PLOTTED

2.6 Ha

DWELLING UNITS ESTIMATION

MIG

Ground coverage Stake

416,43%

EWS

MIG

256,27%

3520,33%

PARKS

0.5 Ha

0.4 Ha

Distribution of Dwelling Units

Effective Built up UNIT ARE Circulation unit area Estimated TYPOLOGY SHARE % area (sq.m) core % (sqm) DU’s HIG 50* 39516 150 10 165 239 MIG 50* 39516 100 10 110 359

AMENITIES

1.2 Ha

Share of Built-up Area HIG

EWS

34320,36% MIG 45760,48%

2304,22%

*Each Social Group Cluster stake is derived from Market Trend Analysis EWS DWELLING UNITS ESTIMATION Built up area available for EWS Dwelling Unit Size Of EWS Core circulation% OF EWS Effective Unit Area – (Sq.m) Estimated Dwelling Units for EWS (Built-up area / dwelling unit size)

DWELLING TYPOLOGY UNITS HIG 239 MIG 359

11379 30 20 36

PLOT-1

HIG 208,22%

60,6%

PLOT - 1

HIG 2640,25%

PLOT - 2

PLOT-2

24,2%

500,5%

1600,15%

PLOT - 2 PLOT - 1 1500,1%

CALCULATION OF POSSIBLE DWELLING UNITS IN GROUPED HOUSING DU’S IN 1 ADJUSTED TOTAL CLUSTER NUMBER OF NUMBER OF NUMBER OF DERIVED PLINTH AREA GROUND FLOOR FLOORS CLUSTERS CLUSTERS DU’S PER CLUSTER COVERAGE 4 13 4.6 4 208 660 2640 8 13 3.5 4 416 880 3520 256 880

288

SUMMARY Total Ds Of All Types 208+416+256+84= 964 (HIG+MIG+EWS+Plotted) Population Achieved 960 x 4.5 = 4338 Ground Coverage Of Net Residential Area Grouped Housing% 32.13 % 8464 sq.m Plotted Housing% 50% (as per NKDA) 2000 sq.m FAR ACHIEVED Grouped Housing 89296sq.m (98.8%) 2.96 Plotted Housing

6000

9216,10% 4800,5%

316

EWS 316 8 4 9.9 8 TOTAL NUMBER OF DWELLING UNITS DERIVED FOR GROUPED HOUSING

1000 sq.m 4000 sq.m Du's In Plotted Housing 60 24 84

EWS

3

TYPE EWS MIG HIG

2304 8464 32.13%

ACHIEVED FAR 34320 45760 9216 89296(98.8%) 2.96

PARKING CALCULATION DU’S ECS/TENEMENTS 256 1/6 416 1 208 1 TOTAL ECS REQUIRED

1 ECS = 5m X 2.5 m Area required for parking

Group – 06 |

ECS 43 416 208 667

12.5 sq.m 8337.5 sq.m

05

Site Planning

DWELLING UNIT & CLUSTER PLANS HIG DWELLING UNIT PLAN

Action Area 2-C, New Town, Kolkata MIG DWELLING UNIT PLAN EWS DWELLING UNIT PLAN

EWS TYPICAL DWELLING UNIT – 30 sq.m HIG TYPICAL DWELLING UNIT – 150 sq.m

HIG TYPICAL CLUSTER

MIG TYPICAL DWELLING UNIT – 100 sq.m

EWS CLUSTER

MIG TYPICAL CLUSTER

Group – 06 |

06

Site Planning

DESIGN DEVELOPMENT

Action Area 2-C, New Town, Kolkata

-

ROAD NETWORK AND PLOT ALIGNMENT ACCORDING TO OPTIMAL ORIENTATION CONCLUDED FORM SITE STUDY FOR MAXIMUM AIR FLOW THROUGHOUT BUILT FORMS TO FACILITATE NATURAL VENTILATION IN SITE. CENTRAL AREA OF SITE ALLOCATED FOR HIG GROUP HOUSING AND PLOTTED HOUSING AS IT IS LOWEST NOISE LEVEL AND BUFFERED FROM ALL SIDES FOR PRIVACY. EWS APARTMENTS PLACED AT SOUTHERN EDGE TO ALLOW FOR EASIER ACCES TO PUBLIC TRANSPORT SUCH AS AUTO’S AND BUSES. COMMERCIAL COMPLEX AT WESTERN FRONTAGE ABUTTING THE MAIN ROAD FOR EASIER FLOW OF PUBLIC ZONE CENTRAL GREEN RECREATIONAL ZONES PROVIDED FOR MIG AND HIG APARTMENTS FOLLOWING ‘WOONERF’ GUIDELINES OF PLANNING WHICH DICTATE PROVISION OF RETENTION POND AT LOWEST POINT AS PER CONTOUR MAP STUDY DUE TO SITE BEING LOCATED IN MODERATELY HIGH RAINFALL REGION.

CONVENIENCE SHOPPING

TOTLOTS

MIG -1 HOUSING RETENTION POND

MIG -1 HOUSING

REDUCED HEAT ISLAND EFFECT FROM SPACING BETWEEN BUILDINGS

USE OF CHICANES AND BENDS WITHIN 50 FT NEAR RESIDENTIAL AND RECREATIONAL TOTLOTS FOR REDUCED TRAFFIC SPEED

PLOTTED HOUSING - 1

MIG

370 METRES

DESIGN CONSIDERATIONS

HIG PLOTTED HOUSING - 2

EWS SECTION

PRIMARY SCHOOL WITH TOTLOT PLOTTED HOUSING - 1 PLOTTED HOUSING

EWS SECTION

AREA – 5.5 HECTARES

198 METRES Group – 06 |

07

Site Planning

SITE PLAN

Action Area 2-C, New Town, Kolkata

KEY MAP WITH LANDUSE

11

N SITE

03

06

09

01

04 RESIDENTIAL PUBLIC SEMIPUBLIC ROADWAY

GREEN UTILITIES COMMER CIAL

02

03 04

05

05 10

04

07

08 10

05 05

05

ANNOTATION 1.

2.

3.

4.

5.

6.

7.

01

05

06 PEDESTRIAN ENTRANCE

MAIN ROAD MAR(North Extension) SCALE ( IN METRES)

01

02

04

05

PRIMARY ENTRY/EXIT

DG/ TRANSFORMER BASEMENT ENTRY RAMP BASEMENT EXIT RAMP PARKING LOT RECREATIONAL AREA SOLID WASTE SEGREGATION AREA MULTIPURPOSE PLAY COURTS AND KID’S PLAY AREA 8. MOUND/BERM 9. COMMUNITY PAVILION 10. WATER BODY 11. TEMPLE

GROUND COVERAGE ROAD NETWORK

15%

GREEN SPACE

30%

NET RESIDENTIAL

32%

N Group – 06 |

08

09

Site Planning

PARKING LAYOUT

Action Area 2-C, New Town, Kolkata

BASEMENT PROFLIE

BASEMENT CAR PARKING SCALE – 1:400

KEY MAP WITH LANDUSE BIKE PARKING PROVISIONS TOTAL BIKE PARKING PROVIDED

138

CAR PARKING PROVISIONS SITE

RESIDENTIAL

GREEN SPACE

PUBLIC SEMI-PUBLIC

UTILITIES

ROADWAY

COMMERCIAL

TOTAL PARKING REQUIRED OPEN CAR PARKING

678

MIG STILT PARKING 1

24X3=72

MIG STILT PARKING 2

20X1=20

HIG STILT PARKING 1

20X2 = 40

HIG STILT PARKING 2

18X2 = 36

BASEMENT PARKING

250

TOTAL PARKING PROVIDED

718

Group – 06 |

292

10

Site Planning

WATER SUPPLY LAYOUT

Action Area 2-C, New Town, Kolkata WATER SUPPLY DEMAND CALCULATION SUMP-GLSR FIRE SUMP

population in the site

4338

approximate visitors percentage

10% - 434 Persons

total population

MAIN LINES

4772

PER CAPITA ESTIMATION OF WATER SUPPLY AT CONSUMER END

SECONDARY LINES SUMP TO SUMP TERTIARY LINES SUMP TO BLOCK

FIRE HYDRANT

litres

Domestic

150

715770

Commercial

25

Main storage tank dimension cu.m

119295

500

Public

15

71577

Losses

10

47718

Total water demand

V

FIRE DEMAND

954360

100√pop

6907.822

total water demand per day

961267.8

Adjusted water demand per day

1000000

Proposed storage capacity

200%

2000000

Density of water 1000 litres per cubic meter SECONDARY SUMPS DISTRIBUTION

Share

litres

cubic metres

GLSR 1 GLSR 2

15% 20%

150000 200000

150 200

OVER HEAD TANKS DISTRIBUTION HIG BLOCK MIG BLOCK EWS BLOCK Over head tank services Plotted housing over head tank KEY MAP

STORAGE DISTRIBUTION% main sump storage capacity 50% 500000L secondary sumps storage capacity 100% 1000000L over head tanks storage capacity 50% 500000L Length (Mtrs)

Width (Mtrs)

Depth (Mtrs)

20

10

2.5

Branching pattern with Distribution pattern looped feeder design period 30 years PIPELINE WIDTHS municipal supply HIDCO WTP to site main sump 300mm pipeline from main sump to secondary sump(feeder lines) 150mm secondary sumps to over head tanks 75mm over head tanks to dwelling units 25-50mm residual pressure at ferrule point 21 metres Dimension of tanks in metres length(m)

width(m)

depth(m)

10 10

6 8

2.5 2.5

Length(m)

Breadth(m)

Height(m)

LITRES

CUBIC METRES

3 3 2.5 2.5 2.5

4.5 4.5 2.5 2.5 2.5

1.5 1.5 1.5 1.5 1.5

20250 20250 9375 9375 9375

20.25 20.25 9.375 9.375 9.375

number

quantity of water

4 2

600000L 400000L

NUMBER 4 4 8 1 1

QUANTITY 81000 L 81000 L 75000 L 9375 L 9375 L

Distribution type Storage Design Considerations: a) To provide against interruptions of the supply caused by repairs to mains, etc.; b) To reduce the maximum rate of demand on the mains; c) To tide over periods of intermittent supply; and d) To maintain a storage for the fire fighting requirement of the building SCALE ( IN METRES)

HIDCO 20 mgd WTP 9kms

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11

Site Planning

POWER SUPPLY , SEWERAGE AND SOLID WASTE MANAGEMENT

Action Area 2-C, New Town, Kolkata

Sewerage Demand Calculation: TRANSFORMER MAIN HT POWER LINE HT CABLE TRENCH LT SUPPLY LINES NON-BIO DEGRADABLE BINS BIO DEGRADABLE BINS

The sewerage is estimated at the rate of 80% of the water supply in site area.

SEWERAGE Total water supply(L)

Sewerage generated per capita

Estimated sewerage per day (L)

1000000(1MLD)

80% LPCD

800000(0.8 MLD)

Design considerations;

V

HIDCO action area 2 c 31 MLD Sewerage treatment plant is situated east at 220 metres. Hence instead STP for this site, community level fecal sludge and septage collection tanks are required .

Size of total capacity of tank facility: Volume of tank = 0.8 x water supplied x 1/ 1000 = 800cum Considering in order to divide chambers for extraction of Sludge using 3 chambered tanks and future demand additional storage capacity of 200cum has been proposed SOLID WASTE MANAGEMENT

MAIN SEWER LINE SEPTIC TANKS 1500 MM SEWER LINE 900 MM SEWER LINE MANHOLE KEY MAP

Step 1

Step 2

Step 3 SCALE ( IN METRES)

HIDCO 20 mgd WTP 9kms

936 1872 1152 270 108 4338

0.6 0.6 0.6 0.6 0.6

List of septic cum Length(m) width(m) depth(m) tanks HIG 225 25 6 1.5 MIG 300 33 6 1.5 6 PLOTTED 200 22 1.5 EWS 275 31 6 1.5 1000

Sewer Line specifications: The minimum spacing of manholes varies from 30 m for smaller sewer dia to 300 m for sewers above 2000 mm dia.

Adopted Sewer size based on road width 900 mm 1500 mm

Manhole spacing 30m 90-150 m

ELECTRICITY DEMAND ESTIMATION

Estimation of Solid waste Generation Category Population KG PER Generated CAPITA / DAY (KG) per day HIG MIG EWS PLOTTED - 1 PLOTTED - 2 TOTAL

Dimension of each septic tank facility:

562 1123 691 162 65 2603

Segregation at source – Household level 2 bins: Bio-degradable & Non-Biodegradable 20 kg Buckets X 2 for each DU Secondary Segregation at area level 300 kg capacity containers x 10 = 3000 kgs Transportation of waste to Bidhan Nagar Waste management Facility of NKDA located at 10.2 kms far by 2 TATA 709 Mounted Garbage Tipper of 1500 kg capacity.

CATEGORY

(KWH)

DU’S

DEMAND PER DAY (KWH)

HIG 4 208 MIG 3 416 EWS 2 256 PLOTTED - 1 4 80 PLOTTED - 2 4 4 Total Domestic Electricity Demand per day Additional demand for Utilities and Services (30%)

832 1248 512 320 16 2928 3806.4

ELECTRICITY SUPPLY PLAN Nearest NTESCL 33/11 kv substation

11 kv line 300m metres of 340 sq.mm HT cables Design Consideration : Total electricity load demand 3806 kwh +kwh 30% excess 1150kwh capacity to be installed Total Electricity Infra Capacity = 4950 kwh TRANSFORMER SPECIFICATIONS 2500 KVA X 1 no.

3 PHASE current for MIG & HIG

1650 KVA X 1 no.

3 PHASE current for services & plotted

800KVA X 1 no.

Single phase current for EWS

Available standard transformers requires 3 X 3 metres space.

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12

Site Planning

LANDSCAPE & STORMWATER DRAINAGE

Action Area 2-C, New Town, Kolkata RAIN WATER HARVESTING CALCULATION Mean annual rainfall

1.7651 metres/year

MAIN EXTERNAL DRAIN

Mean Rainwater supply in (cu.m)

Mean annual rainfall in m/year X Surface area of catchment in M2 X Run-off coefficient

DRAINAGE LINES

Type of Surface

CATCH PITS FOR LANDSCAPE DRAINAGE SLOPE OF 1:75

B

OVERFLOW OUTLET

A

V

Roof top surface area of residential Paved area soft scape hard scape & services TOTAL

AREA OF CATCHMENT (sq.m)

Runoff COEFFICIENT

MEAN RAIN WATER SUPPLY (cu.m)

10464

0.8

14776

8196 12500 24370

0.6 0.1 0.3

8680 2206 12905

55530 Water collected annually (Cu.m X 1000) Design Capacity of Retention Pond

38567 38560 litres 5-10% of DRAINAGE AREA 35 mx 25m x 4 m = 3500 cu.m (9%)

Provided Water Retention Pond Dimensions (l x b x d) cu.m PLANTING SCHEDULE

C

TOTAL TREE PLANTATION = 204 TOTAL SHRUBPLANTATION = 85 TREE PLANTATION (AREA A)

TOTAL GROUNDCOVER PLANTATION = 850 SQ.M SHRUB PLANTATION (AREA B)

GROUNDCOVER PLANTATION (AREA C)

C EXISTING TREES RETAINED EXISTING TREES REMOVED LANDSCAPE STRATEGIES - Indigenous material palette selection

SCALE ( IN METRES)

A

Hedging concept in softscape areas

Boundary wall adjacent Bamboo planting

Herringbone paving patterns for Hardscape areas and Grass grid paver for open parking Group – 06 |

13