多路交叉口交通组织及控制研究

发布时间：2018-04-04 23:33

本文选题：多路交叉口　切入点：交通治理　出处：《长安大学》2015年硕士论文

【摘要】：在老城区或是中小城市中存在相当多数量的多路交叉口。多路交叉口的交通特性与常规交叉口存在许多不同,现有的许多适用于常规交叉口的治理方法,不能直接套用到多路交叉口的治理之中。若不能对这些多路交叉口进行合理的治理,不仅降低该多路交叉口的服务水平,存在安全隐患,还会影响整个路网的交通状况。本文研究的内容是基于对多路交叉口的交通特征深入研究的前提下,提出一套针对多路交叉口的渠化和控制相适应的方法,最后通过实例,将方法运用,寻求更有力的治理方法。本文首先对多路交叉口的定义及交通特征进行探讨,接着对多路交叉口的交通特征及现状存在的问题进行研究和分析,并提出多路交叉口几何条件改善方法和渠化与控制设计步骤。再从车道功能划分、进出口设计、交叉口内部渠化和行人交通组织四个方面对平面交叉口渠化方法作了归纳总结。根据多路交叉口的几何特征和交通问题,提出三种针对多路交叉口的渠化思路和方法,并提出各渠化方法的优缺点和适用范围。接着对平面交叉口控制方式和方式的选择方面进行研究,明确了平面交叉口信号控制参数的确定方法。在此基础上,结合适用于多路交叉口的渠化方法,本文提出了与渠化方法相适应的控制方法,并对各类控制方法的适用条件作了分析。最后,本文将以台州市一个五路交叉口为例,将本文提出的三种渠化和控制方法运用到多路交叉口的改善中,用软件VISSIM建模仿真渠化和控制之后的多路交叉口运行状况,得出排队长度和车辆延误情况,并计算出交叉口的通行能力和饱和度,对各评价指标进行分析和比较,得出对于该实例中的最佳方案。
[Abstract]:There are quite a number of multiple intersections in old urban areas or small and medium-sized cities.There are many differences between the traffic characteristics of multiple intersections and those of conventional intersections. Many existing treatment methods suitable for conventional intersections can not be directly applied to the treatment of multiple intersections.If these intersections can not be properly treated, not only the service level of the multi-way intersections can be reduced, there are hidden dangers of safety, but also the traffic situation of the whole road network will be affected.The content of this paper is based on the in-depth study of the traffic characteristics of multi-way intersections, a set of suitable methods for channelization and control of multi-way intersections are put forward. Finally, through an example, the method is applied.Look for more effective governance methods.In this paper, we first discuss the definition and traffic characteristics of multi-road intersections, and then study and analyze the traffic characteristics of multi-way intersections and the problems existing in the present situation.The method of geometric condition improvement and the design steps of channelization and control are presented.The methods of lane function division, design of entrance and exit, intersections' inner canal and pedestrian traffic organization are summarized.According to the geometric characteristics and traffic problems of multi-way intersections, this paper puts forward three ways of thinking and methods for channelization of multi-way intersections, and puts forward the advantages and disadvantages and the applicable scope of each method of channelization.Secondly, the paper studies the choice of the control mode and mode of the intersection, and defines the method of determining the control parameters of the signal at the intersection.On this basis, combined with the method of channelization suitable for multi-way intersection, this paper puts forward a control method suitable to the method of channelization, and analyzes the applicable conditions of various control methods.Finally, taking a five-way intersection in Taizhou as an example, the paper applies the three methods of channelization and control to the improvement of multi-way intersections, and uses software VISSIM to model and simulate the operation status of multi-way intersections after channelization and control.The queue length and vehicle delay are obtained, and the capacity and saturation of intersection are calculated. The evaluation indexes are analyzed and compared, and the best scheme for this example is obtained.
【学位授予单位】：长安大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491.23

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