逆向可变车道交叉口仿真与优化  

Setting and optimization of reverse variable lane intersections

作　　者：孔丽颖 马磊霞[2] 陈詹迪 王清洲 宋倜 KONG Liying;MA Leixia;CHEN Zhandi;WANG Qingzhou;SONG Ti(School of Civil and Transportation Engineering,Hebei University of Technology,Tianjin 300401,China;Hebei Light Industry Science Research Institute,Shijiazhuang,Hebei 050000,China;Civil Engineering Technology Research Center of Hebei Province,Tianjin 300401,China)

机构地区：[1]河北工业大学土木与交通学院,天津300401 [2]河北省交通规划设计院有限公司,河北石家庄050000 [3]河北省土木工程技术研究中心,天津300401

出　　处：《河北工业大学学报》2022年第6期85-91,共7页Journal of Hebei University of Technology

基　　金：国家自然科学基金(51678212)。

摘　　要：为研究逆向可变车道交叉口设置参数与通行效率的关系,实地调查设置逆向可变车道交叉口的参数并评估运行情况,采用VISSIM交通仿真方法,建立逆向可变车道交叉口仿真基础模型,以通行效率最大为评价标准,综合考虑信号配时方法、逆向可变车道数量、逆向可变车道长度3个设置因素,变动参数开展多方案仿真,确定参数变化对通行效率的影响规律。结果表明:逆向可变车道设置长度应考虑左转交通量大小、设置数量、交叉口配时等因素综合确定。左转交通量较低时进行配时优化可以大幅降低交通延误,不适宜设置逆向可变车道;左转交通量较高时,增加逆向可变车道设置数量可以显著降低车均延误,当设置2条逆向可变车道采用配时优化方案的交叉口通行效率最高,可以降低交通延误约66%~79%。确定逆向可变车道的设置条件为左转车流量大于230 pcu/h、进口道饱和度大于0.8,并提出主信号相位配时优化控制策略以及预信号开启时间与关闭时间的计算方法,为逆向可变车道交叉口设置提供参考和依据。In order to study the relationship between the setting parameters of reversed variable lane intersection and traffic efficiency,field investigation was conducted to set the parameters of reversed variable lane intersection and evaluate the operation situation.VISSIM traffic simulation method was adopted to establish the basic simulation model of reversed variable lane intersection.The maximum traffic efficiency was the evaluation standard,and the signal timing method,the number of reversed variable lanes and the lane length of reversed variable lanes were considered.Setting factors changed and multi scheme simulation was carried out to determine the influence law of parameter change on traffic efficiency.The results showed that:the length of reversed variable lane should be determined by considering factors such as left turn traffic volume,setting number and intersection timing.When the left-turn traffic volume was low,the timing optimization can greatly reduce the traffic delay,and it is not suitable to set the reverse variable lane;when the left-turn traffic volume was large,the average vehicle delay can be significantly reduced by increasing the number of reversed variable lanes;when setting two reversed variable lanes,the intersection traffic efficiency was the highest,which can reduce the traffic delay by 66~79%.The setting conditions for the reverse variable lanes were determined as the left-turning traffic flow greater than 230 pcu/h,and the entrance saturation greater than 0.8.The optimization control strategy of main signal phase timing and the calculation method of pre-signal opening time and closing time were proposed,which can provide references for the setting of reverse variable lane intersections.

关 键 词：交叉口交通控制 逆向可变车道 VISSIM仿真 设置参数 优化 

分 类 号：U491.23[交通运输工程—交通运输规划与管理]