基于交通波理论的干线相位差优化及其控制方法
发布时间：2018-07-16 18:29
【摘要】：为实现干线协调,提高运行效率,基于线控系统中车流以波的形式到达的基本认知,分析了相邻交叉口车辆排队的时空特性,指出了干线协调的内在机理是当车流到达队尾位置时排队完全消散。然后针对排队的集结与消散建立了基于交通波的交叉口相位差模型。并鉴于干线各交叉口间的关联性以及交通需求与供给关系,提出了对干线控制参数的优化策略。最后选取青岛市漓江路沿线交叉口进行案例分析,验证相位差模型以及周期、相位相序、绿信比等优化策略的可行性与实用性,结果表明该控制方法对车辆旅行时间、停车次数的优化效果显著。
[Abstract]:In order to realize the coordination of trunk lines and improve the running efficiency, based on the basic cognition of the arrival of the traffic flow in the form of wave in the line control system, the space-time characteristics of the vehicles queuing at the adjacent intersections are analyzed. It is pointed out that the inherent mechanism of trunk line coordination is that the queue dissipates completely when the traffic reaches the end of the queue. Then the phase difference model of intersection based on traffic wave is established for the assembly and dissipation of queue. In view of the relationship between the intersections and the relationship between traffic demand and supply, the optimization strategy of the main line control parameters is put forward. Finally, a case study of the intersection along Lijiang Road in Qingdao is carried out to verify the feasibility and practicability of the phase difference model and the optimization strategies such as period, phase sequence, green letter ratio, etc. The results show that the control method is effective for vehicle travel time. The optimization effect of parking times is remarkable.
【作者单位】： 青岛理工大学汽车与交通学院;
【基金】：国家自然科学基金项目(51178231;51678320)
【分类号】：U491.54
本文编号：2127263
[Abstract]:In order to realize the coordination of trunk lines and improve the running efficiency, based on the basic cognition of the arrival of the traffic flow in the form of wave in the line control system, the space-time characteristics of the vehicles queuing at the adjacent intersections are analyzed. It is pointed out that the inherent mechanism of trunk line coordination is that the queue dissipates completely when the traffic reaches the end of the queue. Then the phase difference model of intersection based on traffic wave is established for the assembly and dissipation of queue. In view of the relationship between the intersections and the relationship between traffic demand and supply, the optimization strategy of the main line control parameters is put forward. Finally, a case study of the intersection along Lijiang Road in Qingdao is carried out to verify the feasibility and practicability of the phase difference model and the optimization strategies such as period, phase sequence, green letter ratio, etc. The results show that the control method is effective for vehicle travel time. The optimization effect of parking times is remarkable.
【作者单位】： 青岛理工大学汽车与交通学院;
【基金】：国家自然科学基金项目(51178231;51678320)
【分类号】：U491.54
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，本文编号：2127263
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