Simulation Research On Emergency Evacuation Of Subway Station Based On Multi-Agent

Urban rail transit is favored by the majority of travelers because of its punctuality,rapidity and large capacity,then operational safety issues are gradually exposed.Due to narrow space,large obstacles and strong pedestrian mobility,the subway station is prone to safety accidents.In severe cases,it will cause pedestrian riot,panic?and trampling,causing casualties and economic losses.On the basis of domestic and foreign research,this paper summarizes the environmental characteristics of emergency evacuation of subway stations and the psychological and behavioral characteristics of evacuees,then establishes the simulation model of emergency evacuation by using MATLAB.This paper proposed different evacuation strategies,analyzing the influence of them.Some practical suggestions are given combined with the physical scenarios.The specific research contents are as follows:(1)Analyze the emergency evacuation characteristics of the subway system from the perspective of objective environment and subjective individual,generalizing the layout and function characteristics of subway stations,and summarize the psychological and behavioral characteristics of pedestrians in emergency situations.Based on these theories,evacuees are divided into three types:coordinated,ordinary and panic,and the attribute characteristics of different kinds of pedestrians are analyzed.(2)Introduce Agent related theory and Multi-Agent system,the realized gridding the subway station,analyze the related attributes of the station environment and pedestrians,and set pedestrian movement and interaction rules,and built up a multi-agent based subway station crowd evacuation model.(3)This section programmed simulation model based on the MATLAB platform,the total program is split into three modules:Evacuation environment,PedestrainAgent and PedestrainSim.The construction process and main contents of the four modules are introduced in detail.(4)Taking Jianguomen Station of Beijing Metro as an example,investigating the station environmental facilities,this paper initialized the evacuation environment.The evacuation characteristics of pedestrians under the two inducement strategies of nearest exit priority and congestion avoidance were studied respectively.Specific evacuation Suggestions were given based on the simulation results.