道路交通干线协调控制信号配时方法研究及应用

发布时间：2019-02-16 14:04

【摘要】：伴随着我国经济的快速发展,城市的机动车增长速度也越来越快,由此带来的交通拥堵问题、尾气污染、交通安全等问题日益严重。目前,仅仅通过加大基础设施的投入已经很难满足日益增长的交通需求。另外,构成城市道路交通网络的交叉口是造成车流中断、事故增多、延误严重的主要根源,其通行能力远低于路段的通行能力。与此同时,干线协调控制被认为是解决城市交通拥堵、提升车流通行效率的重要手段。通过有效的干线协调控制,可实现干线交通流连续运行,提高干线交通的通行能力,缓解交通拥堵。目前干线协调控制已经被许多国家应用到不同城市的交通系统中,予以重点发展。然而,前人对干线协调的研究尚有一些不足之处,无法适应不同交通环境下的复杂交通流状况。鉴于此,本文展开了学术研究。本文阐述了城市交通信号控制基本理论,研究了城市干线协调信号配时方法,总结了干线协调控制的设置依据和配时的设置流程,将干线协调控制配时分为路口层和干线层两个层级进行分析,并在此基础上提出了改进的MAXBAND干线协调计算方法,重点讨论了不同交通环境下MAXBAND算法的简化方法,并针对两种较为普遍的交通状况,建立了双周期控制和单口放行与对称放行相结合控制下的MAXBAND算法模型。然后,以无锡市滨湖区梁清路干线为例对本文提出的改进的干线协调控制算法和配时方案进行案例分析。最后,仿真结果表明,与现有配时方案和传统MAXBAND控制方案的控制效果相比,该方法能够显著降低车辆的延误、排队长度、停车次数等,验证了该方法的可行性和优越性。
[Abstract]:With the rapid development of our country's economy, the speed of urban motor vehicle growth is also getting faster and faster. The traffic congestion problem, exhaust gas pollution, traffic safety and other problems are becoming more and more serious. At present, it is difficult to meet the increasing traffic demand by increasing the investment in infrastructure. In addition, the intersection which constitutes the urban road traffic network is the main cause of the interruption of the traffic flow, the increase of accidents and the serious delay, and its capacity is far lower than the capacity of the road section. At the same time, the coordinated control of trunk lines is regarded as an important means to solve urban traffic congestion and improve the efficiency of traffic flow. Through the effective coordinated control of trunk lines, the continuous operation of trunk traffic flow can be realized, the traffic capacity of trunk traffic can be improved, and traffic congestion can be alleviated. At present, the coordinated control of trunk lines has been applied to the traffic system of different cities in many countries. However, there are still some deficiencies in previous researches on trunk line coordination, which can not adapt to the complex traffic flow in different traffic environments. In view of this, this article has launched the academic research. This paper expounds the basic theory of urban traffic signal control, studies the method of coordinated signal timing of urban trunk lines, summarizes the setting basis and flow chart of coordinated control of trunk lines. The coordinated control timing of trunk line is divided into two levels: intersection layer and main line layer. On this basis, an improved MAXBAND trunk line coordination calculation method is put forward, and the simplified method of MAXBAND algorithm under different traffic environment is discussed. According to two kinds of general traffic conditions, the MAXBAND algorithm model is established under the control of double period control and single port release combined with symmetrical release. Then, the improved coordinated control algorithm of trunk line and its timing scheme are analyzed with the example of Liangqing Road in Binhu District of Wuxi City. Finally, the simulation results show that the method can significantly reduce the vehicle delay, queue length and stop times compared with the existing timing scheme and the traditional MAXBAND control scheme. The feasibility and superiority of the method are verified.
【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.54

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