逆向可变车道开口位置动态调整及信号配时优化方法研究  

Research on Dynamic Adjustment of Reverse Variable Lane Opening Position and Signal Timing Optimization Method

作　　者：白家安 张存保[1] 曹雨 BAI Jiaan;ZHANG Cunbao;CAO Yu(Intelligent Transportation Systems Research Center,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]武汉理工大学智能交通系统研究中心,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2023年第5期781-787,共7页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家重点研发计划(2020YFB1600500)。

摘　　要：文中提出一种逆向可变车道开口位置动态调整策略及信号配时优化方法.以武汉市古田四路长丰大道交叉口为研究对象,利用短时交通流预测获取调整间隔内进口道左转直行交通需求数据,依据交叉口流向饱和度、开口控制效益与交通需求稳定性指标对动态调整进行严格判定,并提出相应的信号配时优化方案,借助Matlab、VISSIM等软件对优化方法进行验证.结果表明:在低峰期、平峰期以及高峰期等不同时段下,本文提出的开口位置动态调整优化方法的车均延误与固定开口的逆向可变车道动态信号控制模式相比分别减少了3.6%、4.3%和6.4%,相比定时信号控制模式则分别减少了8.4%、16.3%和18.1%.由仿真可知:随着流量的增大,文中提出的方法效果越佳,交叉口的整体运行效率改善程度越大.A dynamic adjustment strategy and signal timing optimization method of reverse variable lane opening position were proposed.Taking the intersection of Changfeng Avenue,Gutian No.4 Road in Wuhan as the research object,the traffic demand data of left turn straight at the entrance in the adjustment interval was obtained by using short-term traffic flow prediction.According to the intersection flow saturation,opening control benefit and traffic demand stability index,the dynamic adjustment was strictly judged,and the corresponding signal timing optimization scheme was put forward.The optimization method was verified by Matlab,VISSIM and other software.The results show that the average vehicle delay of the opening position dynamic adjustment optimization method proposed in this paper is reduced by 3.6%,4.3%and 6.4%respectively compared with the reverse variable lane dynamic signal control mode with fixed openings,and by 8.4%,16.3%and 18.1%respectively compared with the timing signal control mode.From the simulation,it can be seen that with the increase of traffic,the better the effect of the method proposed in this paper,the greater the improvement of the overall operating efficiency of the intersection.

关 键 词：逆向可变车道 开口位置动态调整 信号配时优化 

分 类 号：U491.54[交通运输工程—交通运输规划与管理]