Part X Urban safety requirements
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Questions and Answers

According to the regulations, for rehabilitation/composite buildings with a height between 32 m and 70 m, how much clear open space is required on at least one side other than the road side at ground level?

  • 15 m
  • 6 m (correct)
  • 9 m
  • 12 m

    • If a building abuts another road of 6 m or more, what provision is made regarding the clear open space requirement for rehabilitation/composite buildings?

  • The clear space requirement is doubled
  • The clear space requirement may not be insisted upon (correct)
  • The clear space requirement remains the same
  • The clear space requirement is reduced by half

    • In case a podium is proposed for a rehabilitation/composite building, how far can it extend from the building line in order to maintain the required clear open space?

  • $8$ m
  • $10$ m
  • $12$ m
  • $6$ m (correct)

    • What provision is made regarding ramps for the podium in the side open spaces of rehabilitation/composite buildings?

    <p>No ramps for the podium shall be provided in these side open spaces</p> Signup and view all the answers

    What should the supervision certificate and the completion certificate of a building contain?

    <p>A certificate recorded by the Structural Engineer confirming compliance with IS: 1893-2002 norms and other safety requirements</p> Signup and view all the answers

    What standards should the quality of materials and workmanship conform to?

    <p>Accepted standards, Indian Standard Specifications, and Codes included in National Building Code of India</p> Signup and view all the answers

    What is the requirement for burrow pits dug during construction or repair?

    <p>They should be deep, connected, and directed towards proper drainage without creating isolated pits</p> Signup and view all the answers

    What is the responsibility of individuals regarding burrow pits?

    <p>Not to create any isolated burrow pit likely to cause water accumulation breeding mosquitoes</p> Signup and view all the answers

    What is the minimum width for stairway/corridor multipliers for educational buildings?

    <p>$1.5$ m</p> Signup and view all the answers

    What is the minimum exit multiplier for institutional buildings with over 10 beds?

    <p>$2.0$</p> Signup and view all the answers

    What is the minimum width for stairway/corridor multipliers for assembly buildings?

    <p>$1.5$ m</p> Signup and view all the answers

    What is the minimum exit multiplier for mercantile buildings on upper sales floors?

    <p>$2.0$</p> Signup and view all the answers

    What is the minimum width for doorways in business, industrial, and storage buildings?

    <p>$0.067$ m</p> Signup and view all the answers

    What type of staircases are required for high-rise residential buildings?

    <p>Enclosed type</p> Signup and view all the answers

    What is the minimum width of additional enclosed staircases for high-rise residential buildings over 70 m?

    <p>2.0 m</p> Signup and view all the answers

    What is the minimum exit multiplier for institutional buildings under 10 beds?

    <p>1.5</p> Signup and view all the answers

    What is the minimum door width for dormitory portions in institutional buildings with over 10 beds?

    <p>0.67 m</p> Signup and view all the answers

    What is the minimum exit multiplier for residential buildings?

    <p>1.5</p> Signup and view all the answers

    In non-residential high-rise buildings, how many staircases are necessary?

    <p>Two</p> Signup and view all the answers

    What is the width limit for fire escape balconies in industrial buildings?

    <p>1.5 m</p> Signup and view all the answers

    At what interval should refuge areas be provided in high-rise buildings?

    <p>Every 7th habitable floor</p> Signup and view all the answers

    For high rise buildings over 70 m tall, what is the requirement for fire escape chute shafts?

    <p>4 hours’ fire resistance for walls of the shafts</p> Signup and view all the answers

    What is the responsibility of the structural engineer regarding building safety in natural hazard prone areas?

    <p>Ensure adequacy of structural design and safety of structures</p> Signup and view all the answers

    What is the requirement for development in natural hazard prone areas?

    <p>100% protection from hazards for any type of development</p> Signup and view all the answers

    What is the minimum clear open space required at ground level for buildings with heights up to 70m?

    <p>6m beyond the podium and 9m at ground level with a clear height of 4.5m for fire appliance access</p> Signup and view all the answers

    What is the requirement for buildings with heights over 70m in terms of accessible sides at ground level?

    <p>At least two accessible sides with a clear open space of 9m</p> Signup and view all the answers

    What is the minimum point load capacity required for courtyard open spaces accessible to firefighting appliances?

    <p>10Kg/cm2</p> Signup and view all the answers

    What are the construction material requirements for stairways, corridors, and facades?

    <p>Materials must be non-combustible or fire-resistant</p> Signup and view all the answers

    What is the maximum flame spread ability rating allowed for interior finishes?

    <p>$ ext{Class I, section }3.4.15.2$ and $3.4.15.3$</p> Signup and view all the answers

    What is the requirement for exits in buildings meant for human occupancy during fires or emergencies?

    <p>$ ext{Exits must provide continuous egress to the exterior or an exterior open space leading to the street}$</p> Signup and view all the answers

    What is the maximum allowable travel distance to an exit on a floor based on occupancy type?

    <p>50 meters</p> Signup and view all the answers

    In case of high-rise and special buildings, how many enclosed type staircases must be provided?

    <p>Two enclosed type staircases must be provided, at least one opening directly to the exterior.</p> Signup and view all the answers

    Where can one find the width and number of exits for various occupancies specified?

    <p>Table No. 22</p> Signup and view all the answers

    What should be considered when planning and designing lifts for a building?

    <p>Occupant load, building height, and population on each floor</p> Signup and view all the answers

    What is required for the maintenance of lift installations to ensure safety?

    <p>Regular cleaning, lubrication, adjustment, and adequate servicing by authorized competent persons</p> Signup and view all the answers

    What should be readily available for reference by persons responsible for lift maintenance?

    <p>Electrical circuit diagram of the lift with the sequence of operation of different components and parts</p> Signup and view all the answers

    What should be drawn up in consultation with the lift manufacturer to maintain the lift installation in a safe condition?

    <p>Proper maintenance schedule</p> Signup and view all the answers

    What is the definition of Heritage Grade - I buildings/sites?

    <p>Buildings/sites of national or historical importance, embodying excellence in architectural style, design, technology and material usage</p> Signup and view all the answers

    What is the definition of Heritage Grade - II buildings/precincts?

    <p>Buildings/sites of regional or local importance, possessing special architectural or esthetical merit or cultural or historical value</p> Signup and view all the answers

    What is the definition of Heritage Grade - III/PRECINCT?

    <p>Comprises buildings and precincts of importance for townscape, they evoke architectural aesthetic or sociological interest</p> Signup and view all the answers

    What is the vista area defined for Grade - I structures/entry?

    <p>$100 m$ periphery</p> Signup and view all the answers

    Who formulates the guidelines for display of hoarding, signage, advertisement boards, street furniture, pavement?

    <p>Municipal Commissioner</p> Signup and view all the answers

    Who is responsible for repairing/restoring non-cessed buildings included in the list?

    <p>$MHADA$ or owner/Co-operative Society</p> Signup and view all the answers

    Who may consult Heritage Conservation Committee while disbursement of funds from Heritage Conservation Fund?

    <p>Municipal Commissioner</p> Signup and view all the answers

    Who initiates the process of modification/deletion of Development Plan Reservations on listed heritage structures?

    <p>Municipal Commissioner on recommendation of $MHCC$</p> Signup and view all the answers

    What does a Heritage Grade - II building within the premises allow?

    <p>Independent/separate additional building(s)/structure(s) to be constructed within the premises with unconsumed $FSI$.</p> Signup and view all the answers

    What is a Heritage precinct defined as?

    <p>An area within a specified boundary possessing significant urbanscape/townscape attributes.</p> Signup and view all the answers

    Who is responsible for reporting any lift accidents in Mumbai?

    <p>The Lift Inspector of the Government of Maharashtra</p> Signup and view all the answers

    What is the responsibility of the Municipal Corporation of Greater Mumbai (MCGM) in relation to parking?

    <p>Managing and regulating parking in the city</p> Signup and view all the answers

    Who approves the development or repairs of heritage buildings in Mumbai?

    <p>The Municipal Commissioner</p> Signup and view all the answers

    What is Transferable Development Rights (TDR) granted for in Mumbai?

    <p>Preserving or restoring heritage structures</p> Signup and view all the answers

    When is Transferable Development Rights (TDR) granted in Mumbai?

    <p>$ ext{After obtaining a completion certificate}$</p> Signup and view all the answers

    $ ext{What happens to the potential of a plot when TDR is granted in Mumbai?}$

    <p>$ ext{It decreases}$</p> Signup and view all the answers

    $ ext{Who can alter or supplement the heritage list in Mumbai?}$

    <p>$ ext{Government or municipal commissioner}$</p> Signup and view all the answers

    $ ext{In Mumbai, who must agree to conserve the heritage building in a prescribed manner when TDR is granted?}$

    <p>$ ext{Owners of heritage structures}$</p> Signup and view all the answers

    $ ext{In Mumbai, what does TDR granted depend on?}$

    <p>$ ext{Difference between zonal FSI and consumed building area of the heritage structure}$</p> Signup and view all the answers

    $ ext{What are heritage sites defined as in Mumbai?}$

    <p>$ ext{Areas surrounding a building or natural site with various values such as historical, architectural, aesthetic, cultural, or natural value}$</p> Signup and view all the answers

    $ ext{What does conservation of heritage sites include in Mumbai?}$

    <p>$ ext{Maintenance, preservation, restoration, and reconstruction}$</p> Signup and view all the answers

    In Mumbai, where are underground parking and shopping facilities allowed?

    <p>Below existing or proposed DP Roads and below lands reserved for Playground/Gardens/Parks and Public Open Spaces</p> Signup and view all the answers

    What is the restriction on allowing underground uses in specific areas in Mumbai?

    <p>Not allowed below certain maidans, parade grounds, parks, and recreational grounds</p> Signup and view all the answers

    What is the provision for using the area along the roadside within the boundary of certain maidans/parks/gardens/public open spaces for underground facilities?

    <p>Up to 10m depth for ingress and egress to the underground area</p> Signup and view all the answers

    What facilities are subject to specific conditions as prescribed by the Commissioner in Mumbai?

    <p>Sewage Treatment Plant, storage and allied facilities, water pumping station and storage facility</p> Signup and view all the answers

    What is the permissible width of plantation/green space to be developed along the edge of the carriageway below the flyover?

    <p>1.0 m</p> Signup and view all the answers

    Who can grant permission for temporary structures for up to three years, including for rain protection, religious functions, storage, and exhibitions?

    <p>The Municipal Commissioner</p> Signup and view all the answers

    What type of land development in designated Natural Areas is governed by Ministry of Environment and Forest notifications?

    <p>Forest land development</p> Signup and view all the answers

    What must every building provide installation space for, according to the regulations?

    <p>Common television antennas</p> Signup and view all the answers

    Who are required to comply with all NOC requirements and applicable laws for specific development projects based on location and type of work?

    <p>All of the above</p> Signup and view all the answers

    How many toilets and urinals are required for ladies and gents on plots with non-buildable/POS reservation and an area less than 4,000 sq. m?

    <p>1 toilet and 2 urinals each for ladies and gents</p> Signup and view all the answers

    What is the requirement for constructing toilets on plots with buildable existing amenity and an area more than 2000 sq. m?

    <p>1 toilet and 2 urinals each for ladies and gents</p> Signup and view all the answers

    What is the provision for differently abled persons on plots with non-buildable/POS reservation/existing amenity having an area more than 4,000 sq. m?

    <p>Preferably one toilet</p> Signup and view all the answers

    Who may decide the maintenance responsibility of the public sanitary convenience (PSC) blocks?

    <p>The user of the plot or as decided by the Commissioner</p> Signup and view all the answers

    What is the permissible distance for constructing Public Convenience (PSC) structures along major roads and near bus stops?

    <p>Every 3 km</p> Signup and view all the answers

    What is the minimum required joint open space area between the primary user's structure and the Public Convenience (PSC)?

    <p>3 m or the required front open space, whichever is higher</p> Signup and view all the answers

    What is mandatory for plots with an area of 500 sq.m and above?

    <p>Rain Water Harvesting (RWH)</p> Signup and view all the answers

    What are the permissible methods for Rain Water Harvesting (RWH) as detailed in the regulations?

    <p>Open wells, underground tanks, or percolation pits/trenches</p> Signup and view all the answers

    What should be connected with HDPE/PVC pipes through filter media for effective drainage?

    <p>The terrace and open well/borewell/storage tank/recharge pit/trench</p> Signup and view all the answers

    What should be provided to drain away initial washings from the roof or terrace catchment?

    <p>A valve system</p> Signup and view all the answers

    What is the responsibility of the purchaser as per the purchase agreement?

    <p>To maintain the recycled waste water system as per MPCB requirements</p> Signup and view all the answers

    What must Sewage Treatment Plants (STPs) produce for specified uses?

    <p>Non-potable water</p> Signup and view all the answers

    What is required for solid waste management in developments?

    <p>Separate bins for dry, wet, and hazardous waste</p> Signup and view all the answers

    For developments with 20,000 sq.mt of total construction area, what must be provided?

    <p>Bio-degradable Waste Treatment Plant</p> Signup and view all the answers

    What is required for tree plantation in developments?

    <p>Preserving existing trees and planting new ones</p> Signup and view all the answers

    What governs regulations for development in Coastal Regulation Zones (CRZ)?

    <p>Central government regulations</p> Signup and view all the answers

    What must developments subject to Environmental Impact Assessment (EIA) comply with?

    <p>EIA Notification conditions only</p> Signup and view all the answers

    What type of land development in designated Natural Areas is governed by Ministry of Environment and Forest notifications?

    <p>All types of land development</p> Signup and view all the answers

    What is required for buildings with heights over 70m in terms of accessible sides at ground level?

    <p>Accessible sides on at least one side other than the road side at ground level</p> Signup and view all the answers

    Who can grant permission for temporary structures for up to three years?

    <p>Local authorities based on location and type of work</p> Signup and view all the answers

    What does conservation of heritage sites include?

    <p>Preserving existing structures, landscapes, natural features, and promoting sustainable practices at heritage sites</p> Signup and view all the answers

    Who may decide the maintenance responsibility of public sanitary convenience (PSC) blocks?

    <p>Local authorities</p> Signup and view all the answers

    In which type of buildings are Solar Water Heating (SWH) Systems mandatory due to continuous hot water requirements?

    <p>Hospitals and hotels</p> Signup and view all the answers

    What is the recommended roof load capacity for installing Solar Water Heating (SWH) Systems in buildings?

    <p>50 kg/sq.m</p> Signup and view all the answers

    What is the direction that solar energy collectors should face for regular use?

    <p>South</p> Signup and view all the answers

    For new buildings, what must be installed from the rooftop according to the regulations?

    <p>Hot water lines</p> Signup and view all the answers

    What is the primary use of collected water from Rainwater Harvesting (RWH) systems according to the regulations?

    <p>Non-drinking, non-cooking purposes</p> Signup and view all the answers

    In which type of buildings are Solar Water Heating (SWH) Systems recommended for intermittent hot water needs?

    <p>Guest houses and police/army barracks</p> Signup and view all the answers

    What is mandatory for certain developments/redevelopments as per Ministry of Environment and Forest notifications?

    <p>Waste water recycling and reuse system</p> Signup and view all the answers

    What type of institutions are recommended to have Solar Water Heating (SWH) Systems with electrical backup as optional?

    <p>Schools/colleges</p> Signup and view all the answers

    What is the minimum open sunny roof area required for installing Solar Water Heating (SWH) Systems in other buildings?

    <p>Equal to local latitude</p> Signup and view all the answers

    What must be provided in new buildings according to the regulations?

    <p>Insulated distribution pipelines for hot water</p> Signup and view all the answers

    What is the recommended inclination for solar energy collectors during winter use?

    <p>Latitude+15 degrees</p> Signup and view all the answers

    What is mandatory for waste water recycling systems according to the regulations?

    <p>Designed for occupancy load and seasonal fluctuations</p> Signup and view all the answers

    Study Notes

    • Two staircases are required in buildings whenever necessary, and they must open and terminate at the ground floor or a place of safety.

    • Staircases leading from the basement should be staggered at the ground floor and then diverted to upper floors.

    • In non-residential high-rise buildings, minimum two staircases are necessary.

    • Fire escape balconies must be provided for industrial buildings, not exceeding 1.5 m in width at the periphery of every floor level. They shall be kept free from obstructions and have wall type sprinklers.

    • Ramps shall lead directly to outside open spaces at ground level or courtyards and shall comply with the requirements of sub-regulation (4) of the regulation, just as staircases do.

    • Refuge areas shall be provided at every 7th habitable floor in high-rise buildings, or at 24 m or at 1st habitable floor, whichever is higher, and shall be free of FSI.

    • High rise buildings over 70 m tall must have fire escape chute shafts for every wing adjacent to the staircase. The walls of the shaft shall have 4 hours’ fire resistance, and the access shall be made at every floor level.

    • The structural design of buildings must conform to the provisions of the National Building Code of India and relevant IS codes for structural safety, seismic safety, and against cyclone/wind storms.

    • It is the responsibility of the structural engineer to ensure adequacy of structural design and safety of structures in natural hazard prone areas, and their instructions are binding on the owner/developer and professionals on record, including contractors engaged for the work.

    • Development in natural hazard prone areas, such as earthquake prone areas, cyclone prone areas, and flood prone areas, shall be regulated to ensure special protection from hazards for any type of development, irrespective of the use or zones.

    • For buildings with heights up to 70m, at least one accessible side at ground level must have a clear open space of 9m. If a podium is proposed, it shall not extend beyond 6m from the building line and shall have a clear open space of 9m at ground level, or 6m beyond the podium and 9m at ground level with a clear height of 4.5m for fire appliance access. No ramps for the podium shall be provided in these side open spaces.

    • Buildings with heights over 70m require at least two accessible sides at ground level with a clear open space of 9m. If a podium is proposed, it must adhere to the same clear open space requirements as mentioned above.

    • Courtyard open spaces accessible to firefighting appliances must be capable of supporting a point load of up to 10Kg/cm2.

    • Open spaces shall be free from obstruction and motorable.

    • Construction materials used in stairways, corridors, and facades must be non-combustible or fire-resistant.

    • Materials used for interior finishes must not have a flame spread ability rating exceeding Class I, section 3.4.15.2 and 3.4.15.3 of the National Building Code.

    • Every building meant for human occupancy must be provided with sufficient exits for safe escape during fires or other emergencies.

      • Exits can be horizontal or vertical, such as a door, staircase, or ramp.
      • Exits must provide continuous egress to the exterior or an exterior open space leading to the street.
      • Exits should be free of obstruction, adequately illuminated, clearly visible, and have routes marked and signed.
      • Exits may be fitted with firefighting equipment, a fire alarm device, and remain unaffected by building alterations.
      • The travel distance to an exit on a floor shall not exceed specified limits based on occupancy type.
      • In case of high-rise and special buildings, a minimum of two enclosed type staircases must be provided, at least one opening directly to the exterior.

    • The width and number of exits for various occupancies are specified in Table No. 22.

    • The text outlines regulations for various aspects of Mumbai's urban development.

    • The Lift Inspector of the Government of Maharashtra is responsible for reporting any lift accidents (ii).

    • The Municipal Corporation of Greater Mumbai (MCGM) can constitute a Parking Authority to manage and regulate parking in the city, setting fees and penalties.

    • Conservation of heritage sites includes maintenance, preservation, restoration, and reconstruction (1).

    • Heritage sites are defined as areas surrounding a building or natural site of historical, architectural, aesthetic, cultural, or natural value (1).

    • The regulations apply to buildings, structures, precincts, or sites listed as heritage and any draft heritage list published by the government or municipal commissioner (2).

    • Development or repairs of heritage buildings require approval from the Municipal Commissioner and Mumbai Heritage Conservation Committee, with exceptions for religious buildings (3).

    • The heritage list is not part of the MR&TP Act, 1966, and can be altered or supplemented (4).

    • Owners of heritage structures may be entitled to Transferable Development Rights (TDR) when preserving or restoring their buildings or if development is denied and conditions are imposed (5).

    • The extent of TDR granted depends on the difference between the zonal FSI and the consumed building area of the heritage structure.

    • TDR is granted in two stages: after approval of plans and conservation, and after obtaining a completion certificate.

    • The owner/lessee must agree to conserve the heritage building in the prescribed manner.

    • The potential of the plot is permanently reduced to the extent of the existing building area.

    • UsesPermissible below Flyovers: Permitted uses under flyovers include gardens, parks, promenades, electricity distribution stations, municipal facilities, police stations, homeless shelters, and BEST facilities. A 1.0 m wide plantation/green space must be developed along the edge of the carriageway below the flyover.

    • Metro/Mono/Coastal Road Alignment Modifications: Any modifications to Metro/Mono/Coastal Road alignments or new transport corridors must be automatically added to the Development Plan. Unused Metro Car Shed land can be included in adjoining zones with a written order from the Municipal Commissioner.

    • Forest Land Development: Forest land development in designated Natural Areas is governed by Ministry of Environment and Forest notifications. Forest Department land for public purpose requires special permission from the Municipal Commissioner.

    • Temporary Constructions: The Commissioner can grant permission for temporary structures for up to three years, including for rain protection, religious functions, storage, and exhibitions. Temporary structures cannot be continued after completion of the main building.

    • Common Antenna for Television Transmission Reception: Every building must provide installation space for common television antennas and ducting for telecommunication and digital communication lines.

    • Special Purpose NOCs: Special purpose NOCs are required for specific development projects based on location and type of work. Owners/Developers/Project Proponents must comply with all NOC requirements and applicable laws.

    • Repairs to Existing Buildings: Structural/extensive repairs to existing buildings, approved or in existence before certain dates, are allowed without changing the footprint or planning. Additions, alterations, and extensions are not permitted under the guise of repairs. Repair guidelines and procedures are detailed in Appendix IV.

    • Developments must provide treated waste water for gardening, toilets, landscaping, irrigation, cooling towers, and car washing, but not for drinking, bathing, or washing clothes and utensils.

    • Waste water output quality must meet non-potable water standards as prescribed by the Maharashtra Pollution Control Board (MPCB).

    • A clause in the purchase agreement requires the purchaser to maintain the recycled waste water system in good condition as per MPCB requirements.

    • Sewage Treatment Plants (STPs) and disposal systems must be provided for development/redevelopment projects that require environmental clearance from the Ministry of Environment and Forest (MoEF).

    • STPs must be compact, odour-free, and require minimal monitoring, producing non-potable water for specified uses.

    • Solid waste management requires separate bins for dry, wet, and hazardous waste, as well as provisions for treating wet waste in situ.

    • Developments with 20,000 sq.mt of total construction area must provide a Bio-degradable Waste Treatment Plant.

    • Tree plantation is required to preserve existing trees and plant new ones, with provisions for growth and fire safety.

    • Regulations for development in Coastal Regulation Zones (CRZ) are governed by the amended CRZ Notification.

    • Developments subject to Environmental Impact Assessment (EIA) must comply with EIA Notification conditions and are responsible for obtaining necessary NOCs/permits.

    • RWH structures should not endanger building stability or cause dampness in walls or foundations.

    • Collected water should primarily be used for non-drinking, non-cooking purposes; exceptions for drinking/cooking require proper filtering and purification.

    • Solar Water Heating (SWH) Systems are mandatory in hospitals and hotels due to continuous hot water requirements, with auxiliary electrical back-up.

    • SWH Systems are recommended for guest houses, police/army barracks, canteens, laboratories, schools/colleges, and other institutions with intermittent hot water needs; electrical backup is optional.

    • SWH Systems can also be installed in other buildings, with roof load capacity of 50 kg/sq.m and open sunny roof area.

    • Solar energy collectors should face south, with an inclination equal to the local latitude for regular use or latitude+15 degrees for winter use.

    • New buildings must have installed hot water lines from the roof top and insulated distribution pipelines to each point requiring hot water.

    • Waste water recycling and reuse is mandatory for certain developments/redevelopments per MoEF notifications; recycling system should not cause nuisance or hazard, be designed for occupancy load and seasonal fluctuations, and separate plumbing networks should be installed for kitchen/bathroom waste water leading to a recycling plant.

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