基于逆向可变车道动态控制的交叉口信号优化  

Intersection signal optimization based on dynamic control of reverse variable lanes

作　　者：招晨 陈亮胜 许倩 庞希廉 ZHAO Chen;CHEN Liangsheng;XU Qian;PANG Xilian(School of Traffic and Transportation Engineering,Changsha University of Science&Technology,Changsha 410114,China;Zhejiang SUPCON Information Co.,Ltd.,Hangzhou 310051,China;Guangxi Road Construction Engineering Group Co.,Ltd.,Nanning 530001,China)

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410114 [2]浙江中控信息产业股份有限公司,浙江杭州310051 [3]广西路建工程集团有限公司,广西南宁530001

出　　处：《交通科学与工程》2022年第4期116-123,共8页Journal of Transport Science and Engineering

基　　金：长沙理工大学实践创新与创业能力提升计划(CX2020SS18)。

摘　　要：为缓解交叉口左转交通量带来的交通拥堵压力,本研究提出一种基于逆向可变车道动态控制的交叉口信号优化方法。先通过检测器获取交叉口的实时数据,分析研究逆向可变车道的动态控制方案;再建立以相位有效绿灯时间、可变车道条数等为约束条件,交叉口车均延误时间最小的目标优化模型,并代入实时数据,对该模型进行求解,获得交叉口信号的优化方案;最后,结合案例,利用VISSIM软件对所得优化方案进行仿真验证。研究结果表明:与定时控制方案相比,采取该方案的交叉口的车辆平均延误时间减少14.99%,左转和直行车辆的停车次数分别减少21.60%和38.25%,左转和直行车辆的平均排队长度分别减少44.07%和60.20%,左转和直行车辆的最长排队长度分别减少了33.85%和19.63%,这些都说明该优化方案能显著地提高交叉口的运行效率。In order to relieve delays at the intersection caused by excessive left-turn traffic,an intersection signal optimization method based on dynamic control of reverse variable lanes was proposed.First,the dynamic control scheme of reverse variable lanes was analyzed based on the realtime data from the detector.Then,with the effective green light time of the phase and the number of variable lanes as constraints,the optimization model with the objective function of the minimizing delay of vehicles at the intersection was established.Next,the intersection signal optimization plan was obtained by substituting real-time data to solve the model.Finally,the case was verified by simulation based on the VISSIM software.The results show that the average delay of vehicles at intersections has been reduced by 14.99%,the number of parking times for left-turn vehicles and straight-going vehicles has been reduced by 21.60%and 38.25%respectively.The average queue length has been reduced by44.07%and 60.20%respectively,and the maximum queue length has been reduced by 33.85%and19.63%respectively.It is proved that the optimization method in this paper can significantly improve the operation efficiency of the intersection.

关 键 词：信号交叉口 逆向可变车道 动态控制 信号优化 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]