考虑交叉口优先信号的小型路网交通控制与诱导协同优化研究

发布时间：2018-04-04 22:36

本文选题：优先信号　切入点：城市交通控制　出处：《西南交通大学》2014年硕士论文

【摘要】：随着智能交通技术的发展,城市交通控制与城市交通诱导系统协同优化这一新兴技术已被认为是缓解城市交通拥堵、提高城市交通运行效率的可行手段之一。本文从现有的城市交通控制与城市交通诱导协同优化理论出发,加入交叉口优先信号要素,研究在考虑交叉口优先信号的条件下针对非优先车辆的交通控制与交通诱导系统协同优化的理论和方法,旨在确保优先车辆按照优先信号通过交叉口的前提下,通过对非优先车辆采取交通控制和交通诱导系统协同优化的手段,尽可能减少非优先车辆在交叉口处的延误和路网总行程时间,以减少优先车辆对非优先车辆的影响。本文的主要内容如下：首先,在分析车流运动特征和现有系统逻辑架构的基础上,研究了交叉口优先车辆信号控制、交叉口普通车辆信号控制和城市交通诱导系统协同优化的可行性,分析了影响协同策略的主要因素,提出优先车辆对普通车辆在不同影响程度下的协同策略,并给出考虑交叉口优先信号的交通控制与交通诱导协同体系结构；然后,在分析现有的几种常用交通控制与诱导系统协同模型在考虑交叉口优先信号条件下的适应性的基础上,提出了考虑交叉口优先信号的交通控制与交通诱导双层规划协同模型的具体形式,指出了该协同模型由交通控制模型、交通诱导模型和路径选择模型构成,并给出了该模型的优化思路和基于现有理论及遗传算法的求解方法；在此之后,以成都市某实际小型路网为算例,将实际数据代入该协同模型计算,并将计算结果与根据实际情况的仿真结果进行显著性分析比较,说明了该模型的有效性；最后,对全文工作进行了总结,并对论文的后续研究工作提供建议。以上研究成果对研究特定条件下的交通控制与交通诱导系统协同优化、路网交通信息发布、缓解城市交通拥堵、提高城市交通运行效率、提高城市不同交通管理系统间的数据共享等方面具有一定的参考价值。
[Abstract]:With the development of intelligent traffic technology, the new technology of coordinated optimization of urban traffic control and urban traffic guidance system has been considered as one of the feasible means to alleviate urban traffic congestion and improve the efficiency of urban traffic operation.Based on the existing theory of urban traffic control and urban traffic guidance coordination optimization, this paper adds the priority signal elements of intersection.This paper studies the theory and method of coordinated optimization of traffic control and traffic guidance system for non-priority vehicles under the condition of considering priority signals at intersections in order to ensure that priority vehicles pass through intersections according to priority signals.In order to reduce the impact of priority vehicles on non-priority vehicles, traffic control and traffic guidance system are used to optimize traffic control and traffic guidance system in order to reduce the delay of non-priority vehicles at intersections and the total travel time of road network as much as possible.The main contents of this paper are as follows:Firstly, on the basis of analyzing the characteristics of the traffic flow and the logic structure of the existing system, the feasibility of the traffic signal control at the intersection priority, the signal control of the common vehicle at the intersection and the coordinated optimization of the urban traffic guidance system are studied.This paper analyzes the main factors that affect the coordination strategy, puts forward the coordination strategy of priority vehicles to ordinary vehicles in different degrees, and presents the traffic control and traffic guidance coordination architecture considering the priority signals at intersections.Then, on the basis of analyzing the adaptability of several common traffic control and guidance system cooperation models under the condition of intersection priority signal,This paper puts forward the concrete form of traffic control and traffic guidance bilevel programming cooperation model considering intersection priority signal, and points out that the coordination model is composed of traffic control model, traffic guidance model and path selection model.The optimization idea of the model and the solving method based on the existing theory and genetic algorithm are also given.After that, taking a practical small road network in Chengdu as an example, the actual data is added to the collaborative model, and the results are compared with the results of simulation according to the actual situation, and the effectiveness of the model is proved.Finally, the paper summarizes the work of the paper and provides suggestions for the follow-up work.The above research results can optimize traffic control and traffic guidance system under specific conditions, release road network traffic information, alleviate urban traffic congestion and improve urban traffic operation efficiency.Improving the data sharing among different traffic management systems has certain reference value.
【学位授予单位】：西南交通大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.54;U495

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