考虑左弯待转区的干线协调速度引导研究  

Research on speed guidance of arterial system with left-turn waiting areas

作　　者：余雪 王道斌 YU Xue;WANG Daobin(School of Automotive and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430065,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,湖北武汉430065

出　　处：《山东理工大学学报(自然科学版)》2025年第3期18-26,共9页Journal of Shandong University of Technology:Natural Science Edition

摘　　要：干线协调控制效果会受到交通流到达随机性和行驶速度变化的影响,针对这一问题,通过分析相序影响下的绿信比与相位差设计方法,以及考虑排队消散时的速度和相位差的关系,建立了考虑左弯待转区影响的信号协调与速度引导协同优化模型,获得了特定相序下绿波带宽达到最大且干线延误最小时的绿信比、相位差和速度方案。针对信号过渡过程设计了一种信号过渡方法,实现了信号过渡方案的平稳运行。基于Visual Studio和VISSIM软件搭建交通仿真实验环境,并以武汉市解放大道两个均设置左弯待转区的连续交叉口为实例进行仿真验证。实验结果表明,相对于未考虑速度引导的左弯待转区干线协调控制方法,所提模型的平均停车次数和车辆平均延误时间分别减少了12.31%和8.98%,表明该模型能够进一步提高左弯待转区干线系统的协调控制效果和交通运行效率。The effectiveness of arterial coordination control is affected by the randomness of traffic flow arrival and the fluctuation of driving speed.To address this issue,this study established a signal coordination and speed guidance cooperative optimization model considering the influence of left-turn waiting areas(LTWAs).This model incorporates the green signal ratio and phase offset design methods under different signal phases,as well as the relationship between speed and phase offset during queue dissipation,and obtains the split,phase offset and speed scheme when the bandwidth reaches the maximum and the arterial delay reaches the minimum in a specific phase sequence.In addition,a signal transition method is designed to ensure the smooth operation of the signal transition scheme.Finally,the traffic simulation experimental environment was established based on Visual Studio and VISSIM.Two consecutive intersections with LTWAs along Jiefang Avenue in Wuhan City were selected as the case study for simulation verification.The experimental results showed that compared with the coordinated control method of arterial system with LTWAs without considering speed guidance,the average number of stops and average vehicle delay were reduced by 12.31%and 8.98%,respectively.This demonstrated that the proposed model could further improve the coordination control effect and traffic operation efficiency of the arterial system with LTWAs.

关 键 词：左弯待转区 干线协调 速度引导 过渡方法 信号优化 

分 类 号：U491.54[交通运输工程—交通运输规划与管理]