自适应公交优先控制交叉口平均延误分析  

The analysis of average delay in intersection with adaptive transit priority control

作　　者：董道建 

机构地区：[1]西南交通大学交通运输与物流学院,四川成都610031

出　　处：《交通科学与工程》2014年第4期91-95,共5页Journal of Transport Science and Engineering

基　　金：四川省科技支撑项目软科学计划(2010ZR0021)

摘　　要：以自适应公交信号优先控制交叉口为研究对象,提出了全新自适应公交信号优先控制交叉口车辆平均延误计算模型。并运用仿真测试平台,对该信号控制交叉口车辆平均延误进行了仿真分析。仿真结果表明:较常规信号控制方法,自适应公交信号优先配时虽然有助于减少公交行车延误,但是对道路交通系统中的其他车辆通行会造成很大的干扰,对整个交叉口通行能力的影响不一定是正面的。车辆平均延误分析对公交优先策略的具体实行方式、城市交叉口信号控制算法优化及其服务水平的提升具有良好的指导作用和借鉴意义。Transit priority signal timing in traffic control system helps to reduce bus traveling delay through the intersection.This paper firstly studies adaptive transit signal priority control intersection,then proposes a new average vehicle delay model for adap-tive transit signal priority control intersection and finally makes analysis of average vehi-cle delay in the signalized intersection mentioned above using simulation test platform. The simulation results show that though adaptive transit signal priority timing is useful for reducing transit traveling delay compared with the normal signal control method,it causes great disturbance to other vehicles in the road traffic system and does not always make a positive effect on service level of the whole intersection.The analysis of average vehicle delay produces a good guidance and reference meaning to specific implementation method of transit priority,urban intersection signal control algorithm optimization and its service level improvement.

关 键 词：公交优先 自适应公交信号优先 信号控制交叉口 仿真测试平台 服务水平 

分 类 号：U121[交通运输工程]