干线绿波交通信号控制方法研究

发布时间：2018-03-15 00:02

本文选题：干线绿波　切入点：干线协调　出处：《吉林大学》2015年硕士论文　论文类型：学位论文

【摘要】：近年来，随着社会的不断进步以及汽车工业的迅猛发展，城市道路出现的交通拥挤、阻塞等现象和问题日益增多。另外，我国城市化进程的速度逐步加快，城市人口规模和小汽车保有量突飞增加，加剧了道路交通的拥堵，随之带来一系列交通和环境问题。在城市道路网中，主干道路对于整个城市交通起着至关重要的作用。城市的大部分交通负荷都由主干道承担，是交通网络的主要载体，所以保证城市干道车流的顺畅通行，对于提高城市道路网的总体通行能力、缓解城市路网交通压力等方面都具有重要意义。本文基于上述认识，对干线绿波交通信号控制方法进行了研究。首先对干线协调控制的作用和意义进行了分析，阐述了相关的国内外研究现状。然后，分析了现有的交通信号控制存在的问题，并对线控系统的公共信号周期和绿灯时长分配方法进行了优化。综合考虑线控系统实施的条件和传统的公共信号周期确定方法，实现对公共信号周期的优化。引入非协调相位的饱和度概念，对非关键交叉口的绿灯时长进行优化分配。对线控系统的相位差进行了优化，建立了基于最大绿波带传统模型的改进模型。首先介绍了绿波带基本模型、扩展模型和MULTIBAND模型的基本思想和模型构成，总结现有模型存在的不足。针对传统最大绿波带模型存在的不足，本文对传统模型进行了改进，提出了两种改进模型，一种是基于绿波带形式的改进模型，使得绿波带的带宽形式得以扩展；另一种是基于不同带宽需求的改进模型，，引入了带宽分配影响因素，与带宽需求比例相结合，对绿波带宽进行优化。最后可以利用相关关系求得干线协调控制系统的相位差。最后，对长春市新民大街沿线多个交叉口进行了干线协调优化，并运用VISSIM交通仿真软件进行了仿真验证，仿真结果表明，实行干道协调信号控制的车辆延误明显小于单点信号配时控制，证明了本文方案的有效性。
[Abstract]:In recent years, with the continuous progress of society and the rapid development of automobile industry, traffic congestion and congestion on urban roads are increasing day by day. The sudden increase in the size of the urban population and the number of cars held has exacerbated the traffic congestion on the roads and brought along a series of traffic and environmental problems. In the urban road network, The trunk road plays a vital role in the whole city traffic. Most of the traffic load of the city is borne by the trunk road, which is the main carrier of the traffic network, so it ensures the smooth passage of the traffic flow on the urban trunk road. It is of great significance to improve the overall capacity of urban road network and alleviate the traffic pressure of urban road network. In this paper, the green wave traffic signal control method is studied based on the above knowledge. Firstly, the function and significance of the trunk line coordinated control are analyzed, and the current research situation at home and abroad is expounded. Then, the existing problems in traffic signal control are analyzed. The common signal period and green time allocation method of the wire control system are optimized, and the conditions for the implementation of the wire control system and the traditional method of determining the common signal period are considered synthetically. The concept of uncoordinated phase saturation is introduced to optimize the green light time at non-key intersections. The phase difference of the linear control system is optimized, and an improved model based on the traditional model of the maximum green band is established. Firstly, the basic model of the green band, the basic idea of the extended model and the MULTIBAND model are introduced. In view of the shortcomings of the traditional maximum green wave zone model, this paper improves the traditional model and puts forward two improved models, one is an improved model based on the form of green wave band. The other is an improved model based on different bandwidth requirements, which combines the influence factors of bandwidth allocation with the ratio of bandwidth demand. The green wave bandwidth is optimized and the phase difference of the coordinated control system can be obtained by using the correlation relation. Finally, several intersections along Xinmin Avenue in Changchun are optimized for trunk line coordination, and the simulation results show that, by using VISSIM traffic simulation software, The vehicle delay of coordinated signal control is obviously less than that of single point signal timing control, which proves the effectiveness of the proposed scheme.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.54

【参考文献】