基于可变相位时长的网联车队交叉口通行信号控制方法  

Variable phase duration‑based signal control method for connected fleet intersection passing

作　　者：吴明圆 张健 张平[1] 张金树[1] 张海燕[2] WU Mingyuan;ZHANG Jian;ZHANG Ping;ZHANG Jinshu;ZHANG Haiyan(School of Engineering,Tibet University,Lhasa 850000,China;School of Transportation,Southeast University,Nanjing 210096,China)

机构地区：[1]西藏大学工学院,西藏拉萨850000 [2]东南大学交通学院,江苏南京210096

出　　处：《现代交通与冶金材料》2023年第6期57-63,共7页Modern Transportation and Metallurgical Materials

基　　金：西藏西藏自治区自然科学基金重点项目(XZ202201ZR0040G);国家重点研发计划项目(2021YFB1600500);江苏省重点研发计划项目(BE2020013)。

摘　　要：城市信号交叉口是城市交通网络的重要节点、也是交通事件的频发区域之一。为提高网联车队在交叉口处的通行效率,降低车辆平均停车延误,提出一种车联网环境下基于可变相位的车队交叉口信号控制模型。根据车辆初始速度与车辆加入随机性,引导车辆以固定间距车队形式通行;通过信号控制区域栅格化处理,收缩车辆停车等待时间,减少车辆平均停车延误,并对周期内各相位放行时间进行优化,调整绿灯相位时长使车队完整通过交叉口。利用SUMO仿真软件对实际交叉口采集真实数据进行验证,将提出方法与现有信号控制方法进行比对,分析不同放行方式下的延误。结果显示,其效果在平均延误方面减少43.10%和10.86%,平均排队长度减少38.46%和13.80%。构建的方法有较好的可行性与适用性,可以为城市网联信号控制优化提供借鉴与参考。Urban signal intersection is an important node of urban traffic network,as well as one of the frequent traffic incident areas.In order to improve the efficiency of the Netflix fleet at intersections and reduce average vehicle stopping delays,a variable phase-based signal control model for convoy intersec⁃tions in a connected vehicle environment is proposed.According to the initial speed of the convoy and the randomness of the vehicle joining,the vehicles are guided to pass in a fixed pitch convoy.The signal con⁃trol area is rasterized to reduce the average vehicle parking delay by shrinking the vehicle parking waiting time,to optimize the release time of each phase in the cycle,and to ensure the complete passage of the convoy through the intersection by reasonably extending the green light duration.By using SUMO simu⁃lation software to collect real data from actual intersections for verification,the proposed method is com⁃pared with existing signal control methods to analyze the delays under different release methods.The re⁃sults show that a reduction of 43.10%and 10.86%in average delay and a reduction of 38.46%and 13.80%in average queue length are observed.The method constructed in this paper has good feasibility and applicability,which can provide reference for urban network link signal control optimization.

关 键 词：交通信号控制 信号交叉口 智能控制 网联车辆 智能交通 

分 类 号：U491.51[交通运输工程—交通运输规划与管理]