待行区交通信号控制策略及方法研究

发布时间：2018-05-07 02:20

本文选题：待行区 + 信号控制　；参考：《华南理工大学》2014年硕士论文

【摘要】：近年来，我国城市化速度发展得相当快，小汽车保有量逐年上升，大城市交通问题日益突出，高峰时段中心城区的主交叉口多处于饱和状态，车辆运行速度较低。交通拥挤造成了车辆出行延误增大、速度降低，而车辆在低速行驶环境下较常态行驶燃油消耗量增大，污染物排放量增多；交通拥挤容易诱发交通事故，而事故的发生又加剧拥堵，形成恶性循环。交通拥挤的加剧，导致了城市巨额的经济损失，制约了城市经济的进一步发展。因此，必须采取措施提高交叉口通行效率。设置待行区是提高交叉口通行效率的有效措施之一，如何合理设置待行区也是本文的研究重点。本文从普通交叉口的相位设计与信号配时方案的流程与方法入手，分别提出左转待行区、直行待行区、综合待行区的信号控制策略及方法。论文提出了根据交叉口几何现状设立左转待行区的方法，并分析了设置左转待行区的临界流量条件，提出了左转待行区的相位设置方法及信号配时方案并总结出4种最常用的相位方案，在传统MAXBAND模型基础上提出考虑左转待行区的干道协调约束及协调模型。文章根据交叉口几何现状及相位相序设置设立直行待行区的方法与临界流量条件，通过对设置直行待行区前后的通行能力影响分析，，得出无论设置哪种直行待行区，在不压缩直行相位时间的前提下，都能提高交叉口的通行能力的结论。在左转及直行待行区的基础上研究直左待行区，并提出考虑直行待行区的干道协调约束及协调模型。论文提出了综合待行区的设置流程，通过通行能力分析，得出综合待行区的设置能提高交叉口的通行能力的结论，并提出综合待行区相位相序设计及信号配时方法，通过对普通交叉口及设置综合待行区交叉口的延误分析得出设置综合待行区有利于减少交叉口的延误的结论。最后，文章通过3个实例的对文中理论进行VISSIM仿真验证，结果表明设置待行区能减少车均停车时间、平均排队长度、车均延误等评价指标，且无法避免的增加了交叉口的停车次数。论文在普通交叉口相位相序的设计方法与流程、左转待行区、直行待行区、综合待行区的信号控制策略及方法上有一定的创新，希望能为相关的交通管理部门提供可靠的技术参考，改善交通运行状况。
[Abstract]:In recent years, the speed of urbanization in China has developed rapidly, the number of cars has increased year by year, the traffic problems in big cities have become increasingly prominent, the main intersections in the central urban areas in the peak period are mostly saturated, and the running speed of vehicles is relatively low. Traffic congestion results in the increase of vehicle travel delay and the decrease of vehicle speed, while the fuel consumption increases and the pollutant emission increases under the low-speed driving environment, and traffic congestion can easily induce traffic accidents. And the occurrence of the accident exacerbates the congestion, forms the vicious circle. The aggravation of traffic congestion leads to huge economic loss and restricts the further development of urban economy. Therefore, measures must be taken to improve the efficiency of intersections. How to set up the waiting area is one of the effective measures to improve the traffic efficiency of intersection, and how to set up the waiting area reasonably is also the focus of this paper. This paper starts with the flow and method of phase design and signal timing scheme of common intersection, and puts forward the signal control strategy and method of left turn waiting area, straight line waiting area and synthesizing waiting area respectively. In this paper, the method of setting up the left turn waiting area according to the geometry of intersection is put forward, and the critical flow condition of the left turn waiting area is analyzed. In this paper, the phase setting method and signal timing scheme of left turn waiting area are put forward, and the four most commonly used phase schemes are summarized. Based on the traditional MAXBAND model, the coordination constraint and coordination model of trunk road considering the left turn waiting area are put forward. According to the present situation of intersection geometry and the method of setting up the straight line waiting area and the critical flow condition, the paper analyzes the influence of the traffic capacity before and after setting the straight line waiting area, and draws the conclusion that no matter which kind of straight line waiting area is set up, The conclusion that the traffic capacity of intersections can be improved without compressing the direct phase time. On the basis of the left turn and the straight line waiting area, this paper studies the straight left line waiting area, and puts forward the coordination constraint and coordination model of the main road considering the straight line waiting area. The paper puts forward the setting flow of comprehensive waiting area, through the analysis of traffic capacity, draws the conclusion that the comprehensive setting of waiting area can improve the traffic capacity of intersection, and puts forward the method of phase sequence design and signal timing of integrated waiting area. Through the analysis of the delay of the common intersection and the intersection with the integrated waiting area, it is concluded that the setting of the integrated waiting area is helpful to reduce the delay of the intersection. Finally, through the VISSIM simulation of three examples, the result shows that setting the waiting area can reduce the average stop time, the average queue length, the average vehicle delay and so on. And inevitably increased the number of stops at the intersection. The paper has some innovation in the design method and flow of phase sequence of common intersection, the left turn waiting area, the straight line waiting area, the integrated signal control strategy and method of the waiting area. Hope to provide reliable technical reference for relevant traffic management departments, improve traffic operation.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.54

【参考文献】