城市轨道交通突发事件应急疏散仿真方法

Emergency Evacuation Simulation Method for Urban Rail Transit Accidents

地铁车站客流量较大,行人流线复杂,在运营过程中往往存在着一系列的突发事件。为此,文章从城市轨道交通客流需求与运输能力着手,结合车站设备、构造、旅客行为特征,提出了基于MassMotion的城市轨道交通突发事件应急疏散仿真方法。通过确定仿真环境中所需要的基本参数,结合交通过程中行人行为特性,以三维模型空间为基础,对突发大客流进行仿真模拟研究,将车站的设施和行人抽象化。仿真结果显示,突发情况下车站内的所有人员能够在安全时间内迅速撤离到安全区,旅客的疏散速度、工作人员的疏散能力等行为特性对疏散效率有很大的影响。

The subway station has a large passenger flow and its pedestrian flow lines are complex,thus there are often a series of emergencies existing in the operation process.To this end ,starting from the passenger flow demand and transportation capacity of urban rail transit,and combining the station equipment,structure,and passenger behavior characteristics,this article proposes the MassMotion-based emergency evacuation simulation method for urban rail transit accidents.By determining the basic parameters needed in the simulation environment, combining the pedestrian behavior characteristics in the traffic process,and based on 3D model space,it conducts the simulation studies on the sudden large passenger flow and the facilities and pedestrians of the station are abstracted.The simulation results show that all personnel in the station under an emergency can quickly evacuate to the safe area within a safe time,and the behavioral characteristics such as the evacuation speed of passengers and the evacuation ability of the staff have a great influence on the evacuation efficiency.