Emergency Evacuation Model of Urban Rail Transit Station Based on Dynamic Switching Pattern

Abstract:

Five evacuation behaviors, including the shortest evacuation behavior, avoidance evacuation behavior, herd evacuation behavior, returning evacuation behavior and equilibrium evacuation behavior, were analyzed and modelled in detail. Then a threelayer evacuation model system of dynamic switching pattern was developed based on emergency information stimulation. After analyzing the advantages and disadvantages of different microscopic pedestrian simulation models, a joint simulation system, which contains emergency evacuation decisionmaking model, Astar algorithm and social force model, was built. Finally, with the actual survey data of emergency evacuation of urban rail transit stations, the parameters of the model were calibrated and the simulation results were verified.

Key words:urban rail transit station; emergency evacuation behaviors; dynamic switch; emergency evacuation decisionmaking model