Site Planning Action Area 2 C, New Town, Kolkata Group 06 | 3 INTRODUCTION AIM 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. OBJECTIVES 4 1 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 2 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 To envisage the understandings of basic regulations such as building bye laws, FAR, ground coverage, development control regulations etc 01 Source: Site Analysis by James A.Lagro jr. METHODOLOGY SITE SELECTION CRITERIA REGIONAL SETTING Why NKDA Action Area II-C area? ► 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 ADMINISTRATION Action Area II C, Majarhati, New Town Kolkata WestParganasAuthority,PlanningNorth24DistrictBengal700156 ALTITUDE 0.4 m (1.3 ft) AMSL COORDINATES 8822°37'26.5"N°27'53.9"E RANK THE EVALUATED SITES & SELECT THE BEST SUITABLE SITE 3. GATHER SITE DATA & SELECT 4 POTENTIAL SITES TO EVALUATE EACH SITE SUITABILITY ► Capacity zoning usable space utilities ► Compatibility physical constraints, community, character 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 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 . INDIA WEST BENGAL STATE NEW TOWN KOLKATA DEVELOPMENT AUTHORITY LOCATION OF SELECTED SITE METROPOLITANKOLKATA AREA NEW TOWN KOLKATA: This is fast growing 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: SELECTED SITE VIP NAZRUL TIRTHA METRO STATION SEALDAHRAILWAYSTATION WAY TO NSCBAIRPORTINTERNATIONAL4.8KMS Action Area I Action Area ii Action Area iii BUSAPOLLOSTOP SITE IMAGES ACCESSIBILITY: 7 kms from Nazrul Tirtha metro station & 1 6 km upcoming WBHIDCO metro METRO TRANSIT BUS STAND 300m from Apollo Bus stand, 7kms from New Town Bus Terminal AIR PORT 4.8 kms from Netaji Subhash Chandra Bose International Airport RAILWAYS 14 kms from Sealdah Railway station at Raja Bazar (Social)
Clay / sand
Hydrology
Sun Path Diagram Wind Rose Diagram 02
The windthatdiagramWindroseindicatesthepredominantdirectionfor 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.
SLITYWOODSLITYCLAYSANDWITHTRACESOFMICACLAY
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | ELEVATION ASPECT Topography SITE INVENTORY - PHYSICAL SLITY CLAY WITH DECOMPOSED
Soils Characteristics
Humidity Comfort Levels: Average Monthly Temperature: Average Monthly Rainfall: Climatic Conditions
KOLKATA SEISMIC HAZARD MAP
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.
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. 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 Land form: located on the western fringe of composite Hooghly Padma 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.
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.
Radiation rose diagram
FLORA & FAUNA
DESIGN
SUN PATH DIAGRAM
DesignCONSIDERATIONSConsiderationsderived
Massive openings and Open courtyards can reduce Humidity levels, Windows in eastern & western side can promote natural heating and lighting of the building
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | SITE INVENTORY – BIOLOGICAL & DESIGN CONSIDERATIONS
3. Shield Buildings from Vibrations Concrete and plastic rings are placed underneath to channel shockwaves around the 4buildingReinfroce the Building's 5Structure.UseEarth Quake Resistant Materials
Building Orientation
These diagrams investigate the perfect positions and angles for the most economic and sustainable energy use
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
NOISE LEVEL DIAGRAM
Perfect positions and angles for the most economic and sustainable energy use
Sun Path Diagram refers to the apparent significant seasonal and 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.
Building Positioning: Use Light colored and locally available Building materials to cool roofs to minimize conducted heat gain
WINTER SUMMER Hot winds can be blocked by planting Deciduous trees which have high foliage in summers and shed in winters can be used
Consideration based on Topography & Hydrology: 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. 03
Staggered placement of the building blocks can help in proper and efficient movement of winds and can also help in Sunlight Distribution
Design Considerations based on Climatic conditions
1 Create a Flexible Foundation 2 Counteract Forces with Damping using pendulum power or Vibration control devices Tuned Dampers attached to beams .
Design
from Geological and Soil characteristics:
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | BANDHAN BANK 4 04 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. Source: https://magicbricks.com/NewtownKolkata2 SITE INVENTORY : SOCIO-ECONOMICAL 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 AAI RESTRICTIONS 1. Flight or Basic Strip 2. Transitional Surface 3. Inner Horizontal Surface 4. Conical Surface 5. Outer Horizontal Surface 6. Landing and Takeoff Funnel 1 6 2 4 3 LANDUSE AND TEMPORAL CHANGES https://nocas2.aai.aero/nocas/CCZMMAP.htmlSource: DEROZIO MEMORIAL COLLEGE 1 BABLATALA MORE 2 NKDA PARK 5 LOTUS HOSPITAL 6 STP 3 2010200520152020 SOLID WASTE DISPOSAL: UTILITIES & PROXIMITY: DRINKING WATER SUPPLY 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 SEWERAGE NETWORK 31 MLD capacity sewerage treatment plant executed by HIDCO public health engineering dept. is situated 220 metres east to the selected site. 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 5 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
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | OVERVIEW Total area of site 5.5 (55530hectaresSq.mtrs) Type of Development Residential Gross Density of Site (Du’s/Ha) 200 Average Household Size 4.5 TOTAL DU'S ( HECTARES X GROSS DENSITY) 1100 TARGET POPULATION ( TOTAL DWELLING UNITS * HOUSEHOLD SIZE) 4950 DEVELOPBALE RESIDENTIAL AREA Area For Facilities 17600 sq.m Net Residential Area after deducting facilities & Dedicated Green Spaces 37930 sq.m AREA DISTRIBUTION TYPE Area (sq.m) % Plotted Housing 5000 15 Grouped Housing 32930 85 PLOTTED DEVELOPMENT Area for Circulation 20% 1000 sq.m Area left for plotted Development 4000 sq.m Typology Distribution% AvailableLand For Plots Types AreaPlotSqm DerivedTotalPlots Du'sPermissibleInEachPlot Du's HousingPlottedIn Type 1 75 3000 150 20 3 60 Type 2 25 1000 250 4 6 24 ESTIMATED DWELLING UNITS IN PLOTTED HOUSING 84 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 150 Convenience Shopping 1500 Total Area for Housing Area Facilities 5100 DEDICATED GREEN SPACES Type Area(sq.m) Housing Area Park 5000 Residential Unit Play Area 5000 Totlots 2500 Total Area for Dedicated Green Spaces 12500 GROUP HOUSING Area for grouped housing (85%) 32930 Area for circulation (20%) 6586 Net ground area left for grouped housing 26344 Floor Area Ratio (as per NKDA DCR) 3 Available Built up area for grouped housing 79032 Additional FAR for EWS as per (NKDA DCR) 10% Addnl. Built up Area for EWS (Net Residential Area of Site * FAR * 10%) 11379 Total buildable area for grouped housing + EWS 90411 DWELLING UNITS ESTIMATION TYPOLOGY SHARE % Built up area UNIT ARE (sq.m) Circulation core % Effective unit area (sqm) Estimated DU’s HIG 50* 39516 150 10 165 239 MIG 50* 39516 100 10 110 359 EWS DWELLING UNITS ESTIMATION Built up area available for EWS 11379 Dwelling Unit Size Of EWS 30 Core circulation% OF EWS 20 Effective Unit Area (Sq.m) 36 Estimated Dwelling Units for EWS (Built up area / dwelling unit size) 316 CALCULATION OF POSSIBLE DWELLING UNITS IN GROUPED HOUSING TYPOLOGY DWELLINGUNITS DU’S IN 1 CLUSTERFLOOR NUMBERFLOORSOF NUMBERCLUSTERSOF NUMBERADJUSTEDOFCLUSTERS DERIVED DU’S PLINTH AREA PER CLUSTER COVERAGEGROUNDTOTAL ACHIEVEDFAR HIG 239 4 13 4.6 4 208 660 2640 34320 MIG 359 8 13 3.5 4 416 880 3520 45760 EWS 316 8 4 9.9 8 256 288 2304 9216 TOTAL NUMBER OF DWELLING UNITS DERIVED FOR GROUPED HOUSING 880 8464 89296(98.8%) 32.13% 2.96SUMMARY Total Ds Of All (HIG+MIG+EWS+Plotted)Types 208+416+256+84= 964 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 3 1 ECS = 5m X 2.5 m 12.5 sq.m Area required for parking 8337.5 sq.m PARKING CALCULATION TYPE DU’S ECS/TENEMENTS ECS EWS 256 1/6 43 MIG 416 1 416 HIG 208 1 208 TOTAL ECS REQUIRED 667 TOTAL SITE AREA 5.55 HECTARE GROUPED 2.6 Ha PLOTTED 0.4 Ha AMENITIES 0.5 Ha PARKS 1.2 Ha 1.7FACILITIESHa(30%)CIRCULATION 0.85 Ha(15%)RESIDENTIAL3Ha(55%) Distribution of Dwelling Units Share of AreaBuilt-upGroundStakecoverage PLOT - 2 PLOTEWS1 HIG MIG34320,36% 4800,5%45760,48%9216,10%1500,1% HIG 2640,25% MIG 3520,33% EWS 2304,22% PLOT - 1 1600,15% PLOT - 2 500,5% MIG 416,43% EWS 256,27% PLOT 1 60,6% PLOT 2 24,2% HIG 208,22% *Each Social Group Cluster stake is derived from Market Trend Analysis 05 AREA CALCULATIONS:
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | HIG TYPICAL CLUSTER EWS CLUSTER MIG TYPICAL CLUSTER HIG DWELLING UNIT PLAN MIG DWELLING UNIT PLAN EWS DWELLING UNIT PLAN HIG TYPICAL DWELLING UNIT 150 sq.m MIG TYPICAL DWELLING UNIT 100 sq.m EWS TYPICAL DWELLING UNIT 30 sq.m 06 DWELLING UNIT & CLUSTER PLANS
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | DESIGN DEVELOPMENT 07 METRES370 MIG RETENTIONHOUSING1POND HOUSINGPLOTTED 1 HOUSINGPLOTTED 2 SECTIONEWS WITHPRIMARYSCHOOLTOTLOT AREA – 5.5 HECTARES HOUSINGPLOTTED 1 TOTLOTSCONVENIENCESHOPPING198METRES MIG HOUSING1 DESIGN CONSIDERATIONS 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. SECTIONEWS HIG MIG HOUSINGPLOTTED 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
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | SITE PLAN 08 SCALE ( IN METRES)SITEROADWAYPUBLICPUBLICRESIDENTIALSEMI CIALCOMMERUTILITIESGREEN KEY MAP WITH LANDUSE N N ENTRY/EXITPRIMARYPEDESTRIANENTRANCE 1. DG/ TRANSFORMER 2. BASEMENT ENTRY RAMP 3. BASEMENT EXIT RAMP 4. PARKING LOT 5. RECREATIONAL AREA 6. SOLID WASTE SEGREGATION AREA 7. MULTIPURPOSE PLAY COURTS AND KID’S PLAY AREA 8. MOUND/BERM 9. COMMUNITY PAVILION 10.WATER BODY 11.TEMPLE 02 09 01 06 0504 05 04 04 07 08 06 03 04 01 05 05 05 10 11 ANNOTATION 05 10 05 GROUND COVERAGE NETWORKROAD 15% GREEN SPACE 30% RESIDENTIALNET 32% 01 03 02 MAIN ROAD MAR(North Extension)
09
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | PARKING LAYOUT 10 CAR PARKING PROVISIONS TOTALREQUIREDPARKING 678 OPEN CAR PARKING 292 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 TOTALPROVIDEDPARKING 718 BIKE PARKING PROVISIONS TOTAL BIKE PROVIDEDPARKING 138 SITE PUBLICRESIDENTIALSEMI PUBLIC ROADWAY GREEN UTILITIESSPACE COMMERCIAL KEY MAP WITH LANDUSE BASEMENT PROFLIE BASEMENT CAR PARKING SCALE – 1:400
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | WATER SUPPLY LAYOUT 11 SCALE ( IN METRES) SUMP GLSR V FIRE MAINSUMPLINES SECONDARY LINES SUMP TO SUMP TERTIARY LINES SUMP TO BLOCK FIRE HYDRANT WATER SUPPLY DEMAND CALCULATION population in the site 4338 approximate visitors percentage 10% 434 Persons total population 4772 PER CAPITA ESTIMATION OF WATER SUPPLY AT CONSUMER END litres Domestic 150 715770 Commercial 25 119295 Public 15 71577 Losses 10 47718 Total water demand 954360 FIRE DEMAND 100√pop 6907.822 total water demand per day 961267.8 Adjusted water demand per day 1000000 Proposed storage capacity 200% 2000000 Distribution pattern Branching pattern with 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 STORAGE DISTRIBUTION% main sump storage capacity 50% 500000L secondary sumps storage capacity 100% 1000000L over head tanks storage capacity 50% 500000L Density of water 1000 litres per cubic meter Main storage tank dimension cu.m Length(Mtrs) (Mtrs)Width Depth(Mtrs) 500 20 10 2.5 SECONDARYDISTRIBUTIONSUMPS Share litres cubic metres Dimension of tanks in metres number quantityofwaterlength(m) width(m) depth(m) GLSR 1 15% 150000 150 10 6 2.5 4 600000L GLSR 2 20% 200000 200 10 8 2.5 2 400000L OVER HEAD TANKS DISTRIBUTION Length(m) Breadth(m) Height(m) LITRES CUBIC METRES NUMBER QUANTITY HIG BLOCK 3 4.5 1.5 20250 20.25 4 81000 L MIG BLOCK 3 4.5 1.5 20250 20.25 4 81000 L EWS BLOCK 2.5 2.5 1.5 9375 9.375 8 75000 L Over head tank services 2.5 2.5 1.5 9375 9.375 1 9375 L Plotted housing over head tank 2.5 2.5 1.5 9375 9.375 1 9375 L 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 Distribution type KEY MAP HIDCO 20 mgd WTP 9kms
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | POWER SUPPLY , SEWERAGE AND SOLID WASTE MANAGEMENT 12 SCALE ( IN METRES) TRANSFORMER V MAIN HT POWER LINE HT CABLE TRENCH LT SUPPLY LINES NON BIO DEGRADABLE BINS BIO DEGRADABLE BINS MAIN SEWER LINE SEPTIC TANKS 1500 MM SEWER 900LINEMM SEWER MANHOLELINE Sewerage Demand Calculation: The sewerage is estimated at the rate of 80% of the water supply in site area. SEWERAGE Totalsupply(L)water generatedSeweragepercapita sewerageEstimatedper day (L) 1000000(1MLD) 80% LPCD 800000(0.8 MLD) 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 Design considerations; List of septic tanks cum Length(m) width(m) depth(m) HIG 225 25 6 1.5 MIG 300 33 6 1.5 PLOTTED 200 22 6 1.5 EWS 275 31 6 1.5 1000 Adopted Sewer size based on road width Manhole spacing 900 mm 30m 1500 mm 90 150 m Dimension of each septic tank facility: 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. ELECTRICITY DEMAND ESTIMATIONSOLID WASTE MANAGEMENT Estimation of Solid waste Generation Category Population KG PER CAPITA / DAY Generated (KG) per day HIG 936 0.6 562 MIG 1872 0.6 1123 EWS 1152 0.6 691 PLOTTED 1 270 0.6 162 PLOTTED 2 108 0.6 65 TOTAL 4338 2603 Step 1 Step 2 Step 3 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. KEY MAP HIDCO 20 mgd WTP 9kms CATEGORY (KWH) DU’S DEMAND PER DAY (KWH) HIG 4 208 832 MIG 3 416 1248 EWS 2 256 512 PLOTTED 1 4 80 320 PLOTTED 2 4 4 16 Total Domestic Electricity Demand per day 2928 Additional demand for Utilities and Services (30%) 3806.4 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 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. TRANSFORMER SPECIFICATIONS ELECTRICITY SUPPLY PLAN
Site Planning Action Area 2 C, New Town, Kolkata Group 06 | LANDSCAPE & STORMWATER DRAINAGE 13 SCALE ( IN METRES) MAIN DRAINEXTERNAL V DRAINAGE LINES SLOPE OF 1:75 EXISTING REMOVEDEXISTINGRETAINEDTREESTREES CATCH PITS LANDSCAPEFORDRAINAGETREE PLANTATION (AREA A) SHRUB PLANTATION (AREA B) PLANTATIONGROUNDCOVER(AREA C) LANDSCAPE STRATEGIES - Indigenous material palette selection Hedging concept in soft scape areas Boundary wall adjacent Bamboo planting Herringbone paving patterns for Hardscape areas and Grass grid paver for open parking A B C C A OVERFLOW OUTLET PLANTING SCHEDULE TOTAL TREE PLANTATION = 204 TOTAL SHRUBPLANTATION = 85 TOTAL GROUNDCOVER PLANTATION = 850 SQ.M RAIN WATER HARVESTING CALCULATION Mean annual rainfall 1.7651 metres/year Mean Rainwater supply in (cu.m) Mean annual rainfall in m/year X Surface area of catchment in M2 X Run off coefficient Type of Surface AREA OF(sq.m)CATCHMENT Runoff COEFFICIENT MEAN RAIN WATER SUPPLY (cu.m) Roof top surface area of residential 10464 0.8 14776 Paved area 8196 0.6 8680 soft scape 12500 0.1 2206 hard scape & services 24370 0.3 12905 TOTAL 55530 38567 Water collected annually (Cu.m X 1000) 38560 litres Design Capacity of Retention Pond 5 10% of DRAINAGE AREA Provided Water Retention Pond Dimensions (l x b x d) cu.m 35 mx 25m x 4 m = 3500 cu.m (9%)
