Simulation of Emergency Evacuation of personnel with multiple exits under High-Density Building Fires
High density urban buildings typically have complex structures and multiple floors,including multiple rooms,corridors,passages,and stairs,with a limited number of exits.When a fire occurs,the simultaneous evacuation of a large number of people can lead to congestion,chaos,and blockage,increasing the difficulty of evacuation.In or-der to effectively solve the problem of emergency evacuation of personnel in urban building fires,this paper proposed a multi-exit emergency evacuation method for personnel in high-density urban building fires.From both subjective and objective aspects,we analyzed the factors affecting the emergency evacuation of personnel in high-density urban building fires.Meanwhile,we used the grid method to carry out environmental modeling.According to real-time infor-mation of the fire scene and the number of turns in the path,we improved the evaluation function and search strategy of A∗ algorithm,and then applied the improved A∗ algorithm to the multi-exit emergency evacuation of personnel in high-density urban building fires.Finally,we determined the best plan.The experimental results show that the pro-posed method has fewer turning points in the emergency evacuation path and needs shorter evacuation time.
High densityUrban architecturePersonal in fire situationMultiple exitsEmergency evacuation
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