计算机工程与应用Issue(6)：16-21,6.DOI:10.3778/j.issn.1002-8331.1407-0625
无信号人行横道交通流特性的研究
Study of traffic flow characteristics at unsignalized crosswalk
摘要
Abstract
Considering the psychological factors of pedestrian crossing, a mixed traffic flow model is built based on Cellular Automata(CA). In this model,the rules of interference between pedestrians and vehicles at crosswalk are revised, the proba-bilities of pedestrians crossing are achieved on the basis of the two introducing concepts of critical safety gap and critical decision gap, and the risk probabilities of pedestrians are redefined according to the threshold of pedestrian waiting time. Simulation results show that the critical decision gap, the threshold of pedestrian waiting time and the critical following gap have different effects on vehicle and pedestrian traffic flows,in which the effects of the critical following gap are strongest.关键词
数值模拟/人行横道/行人心理/元胞自动机/临界安全间隙/临界跟随间隙Key words
numerical simulation/pedestrian crossing/pedestrian psychology/Cellular Automation(CA)/critical safety gap/critical following gap分类
交通工程引用本文复制引用
刘应东,牛惠民,王建强,李世威..无信号人行横道交通流特性的研究[J].计算机工程与应用,2015,(6):16-21,6.基金项目
国家自然科学基金（No.71261014）；甘肃省自然科学基金（No.145RJZA190）。 （）
