信号交叉口左转掉头车辆车头时距特性及应用研究

发布时间：2018-05-02 17:08

本文选题：信号交叉口 + 左转掉头车辆　；参考：《北京工业大学》2014年硕士论文

【摘要】：随着北京市城市经济的发展，带来了一系列社会问题，其中交通拥堵成为北京市突出的社会问题。信号交叉口作为城市道路的重要组成部分，在道路衔接中起着举足轻重的作用。初步统计北京市五环之内拥有信号交叉口2000余个，，针对北京市信号交叉口进行左转掉头车辆流释放特性研究，对于缓解北京市交通拥堵具有十分重要的作用。研究首先从信号交叉口车头时距特性、信号交叉口交通工程设计、微观仿真应用三方面展开国内外研究综述，确定论文研究方法及数据采集内容。论文调研数据包括左转掉头车辆车头时距及掉头车辆运行特性。研究选取6个具有左转专用相位及左转专用车道的信号交叉口，并依托北京市信号控制系统获取信号交叉口交通流运行视频数据，而后应用车头时距采集程序采集左转车流车头时距；应用实验车搭载高精度GPS记录车辆转弯运行速度及加速度数据。然后，围绕左转掉头车辆车头时距特性展开研究，发现左转掉头车辆车头时距明显大于左转车辆车头时距；不同排队位置左转掉头车辆对左转车流车头时距分布影响不同；左转掉头车辆数量及在车队中所处位置对左转车流运行延误有着重要影响。最后采用交通仿真研究表明车流运行延误与左转掉头车辆所占比例呈对数增长关系，并给出计算模型。
[Abstract]:With the development of Beijing's urban economy, a series of social problems have been brought, among which traffic congestion has become a prominent social problem in Beijing. As an important part of urban road, signalized intersection plays an important role in road convergence. There are more than 2000 signalized intersections in the Fifth Ring Road of Beijing. It is very important to study the flow release characteristics of left-turn U-turn vehicles at the signalized intersections in Beijing, which plays an important role in alleviating traffic congestion in Beijing. In this paper, the characteristics of the headway of signalized intersections, the traffic engineering design of signalized intersections, and the application of microscopic simulation are summarized firstly, and the research methods and data acquisition contents are determined. The research data of this paper include the headway distance and the running characteristics of the turning-around vehicle. In this paper, six signalized intersections with left turn phase and left turn lane are selected, and traffic flow video data are obtained by Beijing signal control system. Then the head-length acquisition program is used to collect the head-length of the left-turn flow, and the high-precision GPS is used to record the turning speed and acceleration data of the vehicle. Then, based on the study of the head-length characteristics of left-turn turning vehicle, it is found that the head-time distance of left-turn turning vehicle is obviously larger than that of left turn vehicle, and the influence of left-turn vehicle on left-turn flow head-length distribution is different at different queuing positions. The number of left-turn vehicles and their position in the vehicle fleet have an important impact on the left-turn traffic delay. Finally, the traffic simulation results show that there is a logarithmic relationship between the traffic delay and the proportion of the left-turn turning vehicle, and the calculation model is given.
【学位授予单位】：北京工业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491

【参考文献】