摘要
为了提高平面交叉口的运行效率和安全性,本文在分析机动车与行人冲突情况的前提下,研究行人信号配时方法.从搭接相位的角度,在两相位信号控制交叉口,建立行人绿灯提前截止时间计算模型,在四相位信号控制交叉口,建立不同相序下的行人交通流绿灯提前启亮时间计算模型;从以行人交通流为关键交通流的角度,确定信号配时关键车流的流量临界值,进而计算信号配时参数,并以长春市某交叉口为例进行验证.研究结果表明,该配时方法可以大大提高行人的过街效率,减少甚至避免行人和机动车之间的冲突,提高交叉口的安全性和运行效率.
To improve the operational efficiency and safety of the intersections, the signal timing method for pedestrian is studied based on the vehicle-pedestrian conflict analysis. From the view of overlap phase, the early end of green time for pedestrian traffic flow is measured at two-phase signal intersection. The early start of green time for pedestrian traffic flow is calculated at four-phase signal intersection according to the diverse phase sequence. From the point of taking pedestrian volume as the basement, the critical value is determined and then the signal timing parameters are computed. The intersections in Changchun city＂ of China is taken as an example for verification. The results show that the efficiency of the pedestrian traffic increases greatly and the vehicle-pedestrian conflicts can be lessened and avoided. The overall safety and operational efficiency of the intersection is improved through the signal timing method.
出处
《交通运输系统工程与信息》
EI
CSCD
北大核心
2013年第4期54-58,65,共6页
Journal of Transportation Systems Engineering and Information Technology
基金
吉林省自然科学基金项目(201215176)
关键词
交通工程
信号配时
搭接相位
行人交通流
关键车流
traffic engineering
signal timing
overlap phase
pedestrian traffic flow
critical traffic flow
