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DESIGNING FOR FIRE SAFETY
architecturemalaysia.com: upper floor assembly area in an institutional building 50m 20m Stair A Stair B Lobby C Occupancy load (UBBL 180(b)) =1.35m2/pax 1000m2 / 1.35m2 = 741 persons Assume lobby C is inaccessible, Therefore A and B must accommodate total occupancy 741 / 2 stairs = 371 persons per stair VII persons per unit for stair = 75 371 / 75 = 4.95, say 5