移位左转交叉口渠化与信号配时优化模型  

Optimization Model of Channelization and Signal Timing for Displaced Left-turn Intersection

作　　者：朱然博 徐良杰[1,2] 李福 陈国俊 ZHU Ranbo;XU Liangjie;LI Fu;CHEN Guojun(School of Transportation and Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China;School of Automotive and Traffic Engineering, Hubei University of Arts and Science, Xiangyang 441053, China)

机构地区：[1]武汉理工大学交通与物流工程学院,武汉430063 [2]湖北文理学院汽车与交通工程学院,襄阳441053

出　　处：《武汉理工大学学报（交通科学与工程版）》2022年第1期44-49,共6页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：移位左转交叉口可以通过借用对向最外侧出口道,实现直行与左转车辆的无冲突行驶.为进一步发挥移位左转交叉口的通行性能,文中设计了移位左转交叉口渠化模型,构建了考虑主、预信号协同控制的移位左转交叉口信号控制优化模型.基于VISSIM仿真,分别从车均延误、停车次数和通行能力三个方面对移位左转方案进行效用分析.研究结果表明:移位左转方案较原交叉口可降低车均延误61%、停车次数38%,平均排队长度69%,提高交叉口总通行能力9%.The left-turn intersection can realize the conflict-free driving of straight-through and left-turn vehicles by borrowing the opposite outermost exit lane.In order to give full play to the traffic performance of the left-turn-shift intersection,the channelization model of the left-turn-shift intersection was designed,and the signal control optimization model of the left-turn-shift intersection considering the coordinated control of the main signal and the advance signal was constructed.Based on VISSIM simulation,the utility analysis of the shift left-turn scheme was carried out from three aspects:average vehicle delay,number of stops and capacity.The results show that the shift left turn scheme can reduce the average vehicle delay by 61%,the number of stops by 38%,the average queue length by 69%,and improve the total capacity of the intersection by 9%.

关 键 词：交通工程 信号控制方法 协同控制 移位左转 微观仿真 

分 类 号：U491[交通运输工程—交通运输规划与管理]