CHAPTER 4 EGRESS - ecodes.biz

1 CHAPTER 4 EGRESSSECTION means of EGRESS for new bleachers, foldingand telescopic seating, and grandstands shall comply with Exit within tiered seating shall be consid-ered exit access. Exit access includes aisles, cross-aisles,sloped or level walking surfaces, vomitories, tunnels, stairs andramps connecting the tiered seating structure to other portionsof a building, structure or 403 OCCUPANT Occupant bench seating is used, the num-ber of persons shall be based on one person for each 18 inches(457 mm) of length of the bench.

2 Where individual seats areprovided, the occupant load shall be based on one person perseat. The occupant load of reviewing stands and press boxesshall be based on 5 square feet ( m2) per person for stand-ing space and 7 square feet ( m2) per person for movablechair seating space. The occupant load for security, audio andcamera platforms shall be based on the actual number of 404 GENERAL MEANS OF Minimum number of minimum number ofexits shall be provided from the seating area based on the fol-lowing occupant loads and in accordance with the calculatedwidth requirement for EGRESS capacity in Section LOADREQUIRED MEANS OF EGRESS0-2501251-7502751- 2,5003 Over 2.

3 Room or space means of or spaces inwhich tiered seating is located shall be provided with therequired means of EGRESS in accordance with the building Exterior exterior installations wherethe means of EGRESS converges, a minimum of two EGRESS pathsshall be provided, sized to accommodate the occupant loadserved. Where the exit discharge does not lead directly to astreet or public way, it shall lead to an area of refuge sized tocontain the full capacity and located a minimum of 50 feet (15240 mm) from the Travel installations located inside a build-ing, the travel distance from each seat to an exit shall complywith the building code.

4 For exterior installations, the travel dis-tance from each seat to the perimeter of the seating structureshall not exceed 400 feet (122 m). Where aisles are providedfor seating, the distance shall be measured along the aisles andaisle accessway without travel over or on the Required clear width of aisles and othermeans of EGRESS for indoor smoke-protected assembly seatingshall not be less than the occupant load served by the EGRESS ele-ments multiplied by the appropriate factor in Table (1).The clear width of aisles and other means of EGRESS for indoorassembly seating that is not smoke protected shall not be lessthan the occupant load served by the EGRESS elements multi-plied by the appropriate factor in Table (2).

5 The clearwidth of aisles and other means of EGRESS for outdoorsmoke-protected assembly seating shall not be less than theoccupant load served by the EGRESS elements multiplied by theappropriate factor in Table (3). The total number of seatsspecified shall be those within the space exposed to the shall also comply with Section 405. The clear widthshall be measured to walls, edges of seating and tread edgesexcept for permitted projections. There shall be no obstructionsin the required width of aisles except for handrails as providedin Section minimum width of aisles shall be in accor-dance with Section , but not less than that required by thissection.

6 An aisle is not required in seating facilities where all ofthe following conditions Seats are without The rise from row to row does not exceed 6 inches (152mm) per The row spacing does not exceed 28 inches (711 mm)unless the seatboards and footboards are at the same The number of rows does not exceed 16 rows in The first seating board is not more than 12 inches (305mm) above the ground or floor below or a cross Seatboards have a continuous flat Seatboards provide a walking surface with a minimumwidth of 11 inches (279 mm).

7 8. EGRESS from seating is not restricted by rails, guards orother STANDARD ON BLEACHERS, FOLDING AND TELESCOPIC SEATING, AND GRANDSTANDS78 ICC STANDARD ON BLEACHERS, FOLDING AND TELESCOPIC SEATING, AND GRANDSTANDSEGRESSTABLE (1)WIDTH OF AISLES AND MEANS OF EGRESS FOR INDOOR SMOKE-PROTECTED ASSEMBLY SEATINGTOTAL NUMBER OF SEATS IN THESMOKE-PROTECTED ASSEMBLYOCCUPANCYINCHES OF CLEAR WIDTH PER SEAT SERVEDS tairs and aisle steps withhandrails within 30 inchesStairs and aisle steps withouthandrails within 30 inchesPassageways, doorwaysand ramps not steeperthan in 1:10 slopeRamps steeperthan in 1:10 slopeEqual to or less than 5, , , , to or greater than 25, SI: 1 inch =.

8 Interpolation is permitted between specific values (2)WIDTH OF AISLES AND MEANS OF EGRESSFOR INDOOR NONSMOKE-PROTECTED ASSEMBLY SEATINGTOTAL NUMBER OF SEATS INTHE NONSMOKE-PROTECTEDASSEMBLY OCCUPANCYINCHES OF CLEAR WIDTH PER SEAT SERVEDS tairs andaislestepswithhandrailswithin 30inchesStairs andaisle stepswithouthandrailswithin 30inchesPassageways, doorways and ramps not steeper than in 1:10slopeRamps steeperthan in 1:10 slopeAll seating SI: 1 inch = : The values in the table are applicable to steps with riser heights of 7 inches and below.

9 Add inch of additional stair width for each occupant for eachadditional inch of riser height above 7 (3)WIDTH OF AISLES AND MEANS OF EGRESS FOR OUTDOOR SMOKE-PROTECTED ASSEMBLY SEATINGTOTAL NUMBER OF SEATS INTHE SMOKE-PROTECTEDASSEMBLY OCCUPANCYINCHES OF CLEAR WIDTH PER SEAT SERVEDS tairs andaislesteps withhandrailswithin 30inchesStairs andaisle stepswithouthandrailswithin 30inchesPassageways, doorways and ramps not steeper than in 1:10slopeRamps steeperthan in 1:10 slopeEqual to or less than 15, , to or greater than25, SI: 1 inch = : Interpolation is permitted between specific values Minimum aisle minimum clear width ofaisles shall be as Forty-eight inches (1219 mm) for aisle stairs havingseating on each.

10 Thirty-six inches (914 mm) where theaisle serves less than 50 Thirty-six inches (914 mm) for aisle stairs having seatingon only one Twenty-three inches (584 mm) between an aisle stairhandrail or guard and seating where the aisle has amid-aisle Forty-two inches (1067 mm) for level or ramped aisleshaving seating on both :1. Thirty-six inches (914 mm) where the aisle servesless than 50 Thirty inches (762 mm) where the aisle does notserve more than 14 Thirty-six inches (914 mm) for level or ramped aisleshaving seating on only one :1.