基于浮动车的信号控制路口运行状态监测方法研究

发布时间：2018-03-17 18:08

本文选题：浮动车数据　切入点：信号控制路口　出处：《北方工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：因为城市交通问题日益增多,要解决存在的交通问题首先需要了解城市路网的运行状态,所以本文对路网的运行状态进行监测研究,为解决交通问题提供研究方法和数据支持。路网运行状态可分为路段运行状态和路口运行状态,其中路段运行状态的监测研究已经相当成熟,通过断面数据可以计算得到路口的旅行时间等运行状态指标,从而对其运行状态进行监测评价。路口由于信号配时的作用,通过路段评价方法得到的路口运行状态指标并不准确。路口是交通需求和信号控制共同作用下的交通枢纽,其评价方法和路段的评价方法不同。基于此,本文提出对信号控制路口运行状态监测研究,一方面是路口运行状态评价;另一方面是路口信号配时的评价,具体包含以下几方面的研究内容:(1)数据特征分析及预处理。基于数据特征和本文对车辆有效轨迹需求的基础上提出了数据预处理的方法和具体步骤,得到车辆的有效轨迹。(2)基于浮动车数据的信号控制路口配时反推。首先对浮动车原始做处理,得到配时反推所需的有效数据,提出了基于红灯-延误模型的有效红灯时长反推,以及基于通过停止线时间分布的有效绿灯时长和周期反推,并结合具体案例分析其反推结果。(3)信号控制路口运行状态在线监测研究。首先选取合理的评价指标,并介绍评价指标的计算方法,其次基于已经得到的配时方案和交叉口运行状态指标,提出评价方案并建立信号控制路口评价体系。
[Abstract]:Because urban traffic problems are increasing day by day, in order to solve the existing traffic problems, it is necessary to understand the running state of the urban road network, so this paper studies the operation state of the road network. In order to solve the traffic problem, the research method and data support are provided. The road network running state can be divided into road running state and intersection running state, among which, the monitoring and research of road section running state has been quite mature. The running state indexes such as travel time and so on can be calculated by cross section data to monitor and evaluate the running state of intersection because of the function of signal timing. The road intersection is a traffic hub under the joint action of traffic demand and signal control, and the evaluation method is different from that of the road section. In this paper, the study of signal control intersection running state monitoring is put forward. On the one hand, it is the evaluation of intersection running state; on the other hand, it is the evaluation of intersection signal timing. Including the following aspects of research content: 1) data feature analysis and preprocessing. Based on the data features and the requirements of the vehicle effective trajectory, the paper puts forward the method and steps of data preprocessing. The effective track of the vehicle is obtained. (2) the signal based on the data of the floating vehicle is used to control the timing backstepping at the intersection. Firstly, the original processing of the floating vehicle is done, and the effective data needed for the timing backstepping are obtained, and the effective red light time backstepping based on the red-light delay model is proposed. And based on the effective green light time and cycle backstepping through the stop line time distribution, and combined with a specific case to analyze the result of backstepping, the online monitoring study of the running state of the intersection controlled by the signal is made. Firstly, the reasonable evaluation index is selected. The calculation method of evaluation index is introduced. Secondly, based on the available timing scheme and the running state index of intersection, the evaluation scheme is put forward and the evaluation system of signal-controlled intersection is established.
【学位授予单位】：北方工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491;TP274

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