An extended floor field model considering the spread of fire and detour behavior

Abstract

Abstract In this study, we propose an extended floor field model considering the spread of fire and detour behavior. The model includes fire spreading field and fire recognition field. An agent who recognized fire makes a detour to an exit with the lowest risk considering transition probability based on the weighted static floor field. The improved transition probability takes into account the visibility of agent reduced by smoke diffusion. The proposed model differs significantly from the related models in that the agent dynamically chooses a safe path when it detects a fire. Compared to simulations using commercial software, the proposed model predicted longer evacuation times and a very small number of agents inhaling smoke. In particular, the proposed model implemented realistic pedestrian movements, such as trying to move away from the space filled with smoke.