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State of Uttar Pradesh - Section

Section 70 in The Greater Noida Industrial Development Area Building Regulations, 1992

70. Capacity.

(1)The unit of exit width, used to measure capacity of exits shall be 50 cms. A clear width of 25 cms. shall be counted as an additional half unit. Clear widths less than 25 cms. shall not be counted for exit width.
(2)The occupants per unit exit width shall be as given in the table below.
SI. No. Group of occupancy or building Number of occupancy
Stairways Doors
1. Residential ... ... ... 25 75
2. Educational ... ... ... 25 75
3. Institutional ... ... ... 25 75
4. Assembly ... ... ... 60 90
5. Business ... ... ... 50 75
6. Mercantile ... ... ... 50 75
7. Industrial ... ... ... 50 75
8. Storage ... ... ... 50 75
9. Hazardous ... ... ... 25 40
(3)After finding out the population of any floor or calculated by dividing the gross floor area by the occupant load from the table given below, the width of doors, stairways and corridors shall be calculated by dividing the population by the capacity of each exit from the table given in sub-regulation (2). The number of units of doors or stairways (widths) required can be found out from the above and applying provisions of Regulations 72 and 74 exact width of the doors or corridors or stairways can be found out.Occupant load
SI. No. Group of occupancy or building Occupant load area in sq. mtrs. per person
1 2 3
1. Residential 12.50
2. Educational 4
3. Institutional 15
4. Assembly  
  (a) with fixed or loose seats and dance floor 0.6
  (b) without seating facilities including dining rooms 1.5
5. Mercantile-  
  (a) streets, floor and sales basement 3
  (b) upper sale floor 6
6. Business and Industrial 10
7. Storage 30
8. Hazardous 10
Note. - (1) The gross area shall mean plinth area or covered area.
(2)Occupants load in dormitory portions of homes for the aged, orphanages, insane, asylums or the like where sleeping accommodation is provided shall be calculated at not less than 7.50 sq. mtrs. gross area per person.