考虑交织路段掉头车流的邻近交叉口信号协调控制  

Coordinated signal control for adjacent intersections considering U-turn movements at interweaving road sections

作　　者：卢凯 尹帅帅 江书妍 周志洁 李青 LU Kai;YIN Shuai-shuai;JIANG Shu-yan;ZHOU Zhi-jie;LI Qing(State Key Laboratory of Subtropical Building Science,School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China;Pazhou Lab,Guangzhou 510330,China;Construction Center of Guangzhou Nansha District,Guangzhou 511453,China)

机构地区：[1]华南理工大学土木与交通学院,亚热带建筑科学国家重点实验室,广东广州510640 [2]琶洲实验室,广东广州510330 [3]广州市南沙区建设中心,广东广州511453

出　　处：《浙江大学学报（工学版）》2023年第8期1618-1628,共11页Journal of Zhejiang University：Engineering Science

基　　金：国家自然科学基金面上资助项目(52172326,71971116);广东省基础与应用基础研究基金资助项目(2020B1515120095,2021A1515010727)。

摘　　要：针对干道出入口汇入车流路段掉头需求导致的交织区车流冲突问题,建立考虑交织路段掉头的邻近交叉口信号协调控制模型.该模型综合考虑汇入车流的路段掉头以及干道直行车流连续通行的需求,以干道直行绿波带宽最大为优化目标;基于车辆轨迹特征分析,建立出入口上游路段排队清空约束,以保证干道协调控制效果;构建出入口下游交织路段清空约束,防止车辆堵塞路段掉头通道,保证入口汇入车辆在下游路段的通行权;建立入口汇入车辆的掉头约束,减少掉头车辆与主路车流的冲突,同时保证掉头车辆的连续通行;基于出入口与上下游交叉口之间的协调关联特性,给出包含出入口的干道绿波协调约束关系.以珠海市湖心路为案例进行分析,结果表明,所提出的信号协调控制模型不仅能同时满足主路车流和出入口汇入车流的通行需求,通过消除两者冲突降低协调车流的延误与停车,还能有效改善入口汇入车辆离散性较大的问题.The U-turn movements traffic demand of merging vehicles from the entrances and exits on the arterial roadside could lead to traffic conflicts in the interweaving road sections.A coordinated signal control model for adjacent intersections considering U-turn movements at interweaving road sections was proposed to direct against the traffic conflicts.To maximize the green wave bandwidths of the through traffic flows,the U-turn demand of the merging traffic flows at the road sections,and the continuous traffic demand of the through traffic flows on the artery were taken into account in the proposed model.Based on the characteristics analysis of vehicle trajectories,queuing clearance constraints were established for the upstream sections of entrances and exits,which ensured the effect of arterial coordinated control.The clearing constraints for the downstream interweaving road sections of entrances and exits were constructed to prevent vehicles from blocking the U-turn lanes,which secured downstream roadway right-of-way for entrance merging vehicles.The U-turn constraints for merging vehicles at the entrances were also established,then the conflicts between the U-turn movements and the traffic flows on the artery were reduced while ensuring the continuous movement of U-turn vehicles.The asymmetric arterial green wave coordinated constraints were given based on the coordinated correlation characteristics between entrances or exits and intersections at the upstream or downstream road sections.Finally,the Huxin Road in Zhuhai was taken as the case study.Results showed that the proposed signal coordinated control model could meet the continuous traffic demand of the two-way through traffic flows on the artery and the U-turn demand of the merging traffic flows at the road section.Eliminating traffic conflicts could reduce delays and the number of stops in the coordinated flows.The problem of large dispersion of vehicles entering the entrance could also be effectively improved.

关 键 词：交通工程 干道出入口 交织区 掉头车流 信号协调控制 

分 类 号：U491.5[交通运输工程—交通运输规划与管理]