EVALUATION OF EXIT ARRANGEMENT BASED ON ESTIMATION MODEL OF EXIT CHOICE ACCORDING TO FIRE SOURCE POSITION IN ROOM EVACUATION

Abstract

To evaluate the influence of exit arrangement on room evacuation safety, evacuation risk was estimated based on exit choice according to the relative location of fire source and exits to evacuees.

In conclusion, exit arrangement significantly influence to evacuation safety in room with large density of occupants because the convergence of evacuees at an exit far from fire source results in excessive congestion in front of the exit. To reduce the evacuation risk, the exit width per occupant should be at least 0.016 m/person for a room with one exit and 0.0133 m/person for a room with two exits.