Simulation of pedestrian flow evacuation based on direction fuzzy visual field

被引:0
|
作者
Li, Shi-Wei [1 ]
Niu, Hui-Min [1 ]
机构
[1] School of Traffic and Transportation, Lanzhou Jiaotong University, Lanzhou,730070, China
来源
Jiaotong Yunshu Xitong Gongcheng Yu Xinxi/Journal of Transportation Systems Engineering and Information Technology | 2015年 / 15卷 / 02期
关键词
Cellular automata modeling - Evacuation strategy - Evacuation systems - Influence coefficient - Pedestrian flow - Radius of view - Uniform distribution - Visual fields;
D O I
暂无
中图分类号
学科分类号
摘要
This paper defines the direction fuzzy visual field to modify the floor field cellular automata model. When a pedestrian choosing the next target position, his behavior is affected by the shortest distance from the pedestrians to the target position, the repulsive force and the attractive force between pedestrians in direction fuzzy visual field. It simulates the scenes of a single exit and four exits in the condition of pedestrian's uniform distribution. Simulation results indicate that the model does not have to rely on the influence coefficient of every factor. Therefore, it avoids the subjectivity and the limitations of evacuation system in the process of making these factors. And the model can effectively present the macroscopic self-organization phenomena of pedestrian flow, such as jamming and clogging, a phenomenon of double trailing, etc. Moreover, if pedestrians can keep a moderate radius of view in direction fuzzy visual field, it should effectively improve the evacuation efficiency of pedestrian flow. The present study is helpful for devising evacuation strategies and schemes in buildings that are similar to the pedestrian flow. Copyright ©2015 by Science Press.
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页码:88 / 95
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