基于改进的格子气模型的人员疏散模拟研究

Research on Simulation of Personnel Evacuation Based on Improved Lattice Gas Model

采用修改后的无后退偏随机行走格子气模型对紧急情况下单出口室内人员疏散问题进行研究。模拟结果不但出现典型拱形拥堵,而且发现不对称消堵现象。模拟计算漂移系数、出口宽度等对人群疏散时间和疏散速度的影响,其结果利于生活实践中设计更好的方案疏散人群。

A modified random walk lattice gas model with no backward bias was used to study the evacuation of indoor personnel at a single exit in emergency situations.The simulation results not only show typical arched congestion,but also find asymmetric anti-clogging.We also simu⁃lated the effects of the strength of the drift,exit width,etc.on the evacuation time and evacuation speed of the crowd,and the results are conducive to the design of better solutions for evacuation of the crowd in daily life.