摘要
Y型交叉口由于车流运行轨迹不规则及冲突复杂而导致传统的管控方式效率低下,本文根据交叉口三股关键车流循环冲突的运行特征提出了三维绿波协调控制的思想,首先将大型Y型交叉口分解为三个子交叉口,分析三股冲突车流的运行特征;然后,基于绿波协调原理构建了公共周期、绿信比、协调相位差及子交叉口间距的协同优化模型,实现了子交叉口三股关键冲突车流的闭环协调运行;最后,以梁山水泊大街与G220交叉口为例对该方法进行了验证,结果显示高负荷状态下的优化效果更佳,其平均停车次数和延误分别下降56. 86%和60. 81%,交叉口运行效率得到明显提升.
The traditional management and control methods are inefficient,owing to the irregular trajectory and complicated conflict of traffic flow at Y-type intersections. In this paper,the three-dimensional green wave coordination control strategy is improved according to the conflict characteristics of three critical traffic flow at intersections. Firstly,the Y-type intersection is divided into three sub-intersections to analyze the operating characteristics of three traffic flows. Then,based on the principle of green wave coordination the collaborative optimization models of cycle length,split,offset and sub-intersection spacing is constructed. And the closed-loop coordinated control of the three critical conflict traffic flows at the sub-intersection is realized. Finally,the method is validated with the intersection of Shui-bo Street and G220 in Liang-shan County. The results show that the optimization benefits are better under high-load conditions. And the average stop frequency and the average delay decreases by 56. 86% and 60. 81% respectively. The operational efficiency of Y-type intersections has been significantly improved.
作者
宇仁德
曹辉
孙锋
焦方通
刘玮轩
朱晔
YU Ren-de;CAO Hui;SUN Feng;JIAO Fang-tong;LIU Wei-xuan;ZHU Ye(School of Transportation and Vehicle Engineering,Shandong University of Technology,Zibo 255049 Shandong,China;School of Transportation,Wuhan University of Technology,Wuhan 430063,China)
出处
《交通运输系统工程与信息》
EI
CSCD
北大核心
2018年第A01期59-65,共7页
Journal of Transportation Systems Engineering and Information Technology
基金
国家自然科学基金(51508315
51608313)
山东省重点研发计划项目(2016GGB01539)~~
关键词
交通工程
三维绿波
协调控制
Y型交叉口
VISSIM仿真
traffic engineering
three-dimensional green wave
coordinated control
Y-type intersection
VISSIM-simulation
