公交优先的预信号控制交叉口车辆延误分析  

Analysis of vehicle delay of intersections with pre-signals based on bus priority

作　　者：张卫华[1] 陆化普[1] 

机构地区：[1]清华大学交通研究所

出　　处：《中国公路学报》2005年第4期78-82,共5页China Journal of Highway and Transport

基　　金："十五"国家科技攻关项目(2002BA404A20B);合肥市科技计划项目(2005-1005)

摘　　要：为了定量评价公交优先预信号控制交叉口车辆延误,首先对已有研究中所确定的主信号与预信号相互协调关系的不足进行了分析,并对其进行了改进;然后对主信号处车辆到达和离开过程进行了分析,在此基础上,分别对设置预信号前后公交车辆与社会车辆延误变化的计算方法进行了研究。结果表明:预信号控制有助于减少公交车辆的延误,却增加了社会车辆的延误,而人均延误有所减少,但在交叉口处于非饱和状态时人均减少延误效果不甚明显。In order to analyze vehicles delay of intersections with bus priority pre-signals in quantity, some researches on the coordinate relation between pre-signals and main signals weren＇t enough, so they were modified in the article at first. Then, the delay analysis method of buses and general vehicles in intersections with pre-signals was studied. In addition, the analysis method of delay variety between with pre-signals and without pre-signals was studied also. At last, this delay analysis method was used in an example. The results show that this pre-signal means reduces the delay of buses, but raises the delay of general vehicles, and the reduced delay effect of average isn＇t very notable in a non-saturation intersection.

关 键 词：交通工程 车辆延误 理论分析 交叉口 预信号 主信号 公交优先 

分 类 号：U491.51[交通运输工程—交通运输规划与管理]