基于冲突分析的城市信号交叉口渠化与配时优化研究

发布时间：2018-01-28 07:22

本文关键词： 交叉口交通冲突渠化信号配时优化　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，机动车数量的不断增长带给道路运行的交通压力越来越大。交叉路口是整个城市道路交通的瓶颈地带，在城市交通中处于核心位置，往往制约整条道路乃至路网的服务水平。各种交通流体（包括机动车、非机动车和行人等）在平面交叉口处的不断分流、合流和交叉，导致了各种交通冲突和事故的发生，从而使交通状况愈加复杂，因此提高交叉口的通行效率便成为缓解交通拥堵和交通紧张的重要举措，交叉口设置的合理与否对整个交通路网的畅通起着直接而关键的影响。从小的层面讲，城市道路交叉口影响着人们的出行效率和出行体验；从大的层面讲，它关系到土地资源的合理利用、环境污染的改善乃至国民经济和社会经济效益的提高。因此对城市道路交叉口进行优化改善、提高交叉口的通行能力是极其重要的。本文在分析交叉口交通运行特性及交叉口冲突机理的基础上，参考国内外众多学者的研究成果，从冲突分析角度对城市道路平面信号交叉口渠化与配时两方面进行较为全面的分析和研究，力求能够优化和改善城市道路交叉口交通拥堵问题，提高人们的出行效率，提升人们的出行品质。论文从交通冲突的角度进行分析，构建了交通冲突度模型，，并划分了交通冲突度等级。在信号交叉口渠化方面，论文归纳总结了交叉口渠化方法，包括左转车道的设置、右转车道的设置、非机动车与行人过街渠化设置及交通渠化岛、导流线四个方面，并针对每种渠化方法进行冲突分析；在信号交叉口配时方面，论文选取信号周期、绿灯时间间隔、最短绿灯时间和有效绿灯时间进行优化。最后论文结合具体实例进行研究，提出了相应的交叉口改善措施，并进行交通仿真评价。
[Abstract]:In recent years, the increasing number of motor vehicles has brought more and more traffic pressure on the road. Intersection is the bottleneck zone of the whole urban road traffic, and it is the core position in the urban traffic. It often restricts the service level of the whole road and even the road network. All kinds of traffic fluid (including motor vehicles, non-motor vehicles and pedestrians) are constantly diverting, converging and crossing at intersections. It leads to a variety of traffic conflicts and accidents, which makes the traffic situation more complex. Therefore, improving the traffic efficiency of intersection becomes an important measure to alleviate traffic congestion and traffic tension. Whether the intersections are reasonable or not has a direct and critical impact on the smooth flow of the whole traffic network. From a small level, urban road intersections affect people's travel efficiency and travel experience. From the large level, it is related to the rational use of land resources, the improvement of environmental pollution and even the improvement of national economy and social economic benefits. It is extremely important to improve the capacity of intersections. Based on the analysis of traffic characteristics and conflict mechanism of intersections, this paper refers to the research results of many scholars at home and abroad. In order to optimize and improve the traffic congestion problem of urban road intersections, the paper makes a comprehensive analysis and research on the channelization and timing of urban road signalized intersections from the perspective of conflict analysis. Improve people's travel efficiency, improve people's travel quality. From the point of view of traffic conflict, the paper constructs a traffic conflict degree model, and divides the traffic conflict degree grade. In the aspect of signalized intersection, the paper summarizes the method of traffic conflict degree. It includes the setting of left turning lane, the setting of right turning lane, the setting of non-motorized vehicle and pedestrian crossing the street, the traffic channelization island, the diversion line, and carries on the conflict analysis to each kind of channelization method; In the aspect of signal intersection timing, the paper selects signal cycle, green time interval, shortest green time and effective green time to optimize. The corresponding improvement measures are put forward and traffic simulation evaluation is carried out.
【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】：U491.23

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