基于公交优先通行的交叉口预信号设置方法研究

Study on Design Methods of Pre-signals Based on Bus Priority of Intersections

在信号交叉口设置双停车线配上预信号控制是实施公交优先的有效技术措施之一,本文对基于公交优先的预先信号控制下交叉口进口道的布局方法与公交车停靠规则进行了研究,提出了由公交高峰小时到达率、主信号相位红灯时长、进口道数量、以及单个公交车辆所需的停靠长度等来确定主信号停车线与预信号线之间距离的方法,分析了已有文献中关于主信号与预信号配时相互协调关系的不足,并提出了改进的方法。

Setting pre-signal control at the signal intersection is one of the effective measures to execute bus priority.This paper studies the distribution method of the approaches and the traffic regulations of bus stopping under the control of pre-signal which is based on bus priority.We also put forward a method to calculate the distance between the pre-signal stopping line and the main signal stopping line by using the data of the bus arriving rates in peak-hour,main signal phase red light time,the number of approaches and the length for the individual bus to stop.Finally,we analyze the deficiency of the coordination for signal planning between the pre-singal and the main signal which has been described in some articles,and also put forward an improved method.