菱形网格的行人疏散元胞自动机模型  

A cellular automata model of pedestrian evacuation in rooms with squared rhombus cells

作　　者：永贵[1,2] 黄海军[1] 许岩[1,2] 

机构地区：[1]北京航空航天大学经济管理学院,北京100191 [2]内蒙古财经大学统计与数学学院,呼和浩特010051

出　　处：《物理学报》2013年第1期66-71,共6页Acta Physica Sinica

基　　金：国家重点基础研究发展计划(批准号:2012CB725400)资助的课题~~

摘　　要：利用改进的层次域元胞自动机模型,研究了正菱形网格空间中的行人疏散问题.这类网格可以避免行人贴近房间墙壁或障碍物,转移概率考虑了各种逃生受阻因素.数值仿真显示,出口处的行人分布与实验快照展示的行人分布基本相同,疏散时间和出口宽度呈线性关系,行人流率接近实验结果.The modified floor field cellular automata model is used to simulate the pedestrian evacuation in rooms which are discretized into squared rhombus cells. This discretization can effectively stop pedestrians to move against walls or obstacles. The pedestrian transition probabilities from one cell to neighbor ceils are computed by considering various factors influencing evacuation. Simulation results show that the pedestrian distribution nearby exit is basically the same as that indicated by the experimental snapshot, the evacuation time increases almost linearly with exit width, and the flow rate from exit is close to the one observed from experiment.

关 键 词：行人疏散 元胞自动机 正菱形网格 行人流率 

分 类 号：TP301.1[自动化与计算机技术—计算机系统结构] TU201[自动化与计算机技术—计算机科学与技术]