信号交叉口右转机动车与行人冲突分析及优化研究

发布时间：2018-05-08 19:25

本文选题：信号交叉口 + 右转机动车　；参考：《吉林大学》2017年硕士论文

【摘要】：在我国,城市道路信号交叉口大多未设置右转专用相位,但随着机动车保有量和行人交通量的不断增加,右转机动车与过街行人的冲突问题越来越严重,冲突行为不但会阻碍正常的通行,引起人车混乱,还会增加交通安全隐患。本文主要针对信号交叉口右转机动车与行人的冲突特性进行分析,并据此提出相应的优化控制方法,做到在一定程度上能够有效缓解两者的冲突问题。首先通过对国内外研究现状的介绍和梳理,确定了本文的研究思路和主要方法。论文分别选取红旗街与工农大路交叉口以及亚泰大街与南湖大路交叉口作为本次研究过程中正常右转和提前右转组织方式下的调查地点。运用Tracpro软件采集、分析右转车和行人的坐标、时间以及点速度等交通数据信息。观测行人和右转机动车的冲突过程,分析二者在速度、到达规律、车头时距等方面的交通特性。在明确了交通冲突的定义及其分类后,分析冲突发生时二者速度、加速度变化和干扰延误等冲突特性。对比发现行人与右转机动车在通过冲突区的过程中均存在三种状态,并对不同状态下的交通特性进行了概括研究,确定了通过设置右转车禁行相位的方法来缓解交叉口的人车冲突问题,并对实施该方案前后行人与右转机动车的延误进行对比;同时根据所研究交叉口的现状对右转车的信号控制时间进行了计算,得出右转禁行相位的时间大概在11s-13s左右。提前右转组织方式下以行人可容忍等待时间为基础,对早晚高峰期间提前右转车与行人设置信号控制,调查得出当行人的平均延误超过15s时,应当考虑进行适当的信号控制。最后,对论文的工作和不足进行了概括。
[Abstract]:In our country, most of the urban signalized intersections do not have a special phase of right turn, but with the increase of vehicle ownership and pedestrian traffic, the conflict between right-turn vehicles and pedestrians is becoming more and more serious. Conflict behavior will not only hinder normal traffic, cause traffic chaos, but also increase traffic safety risks. In this paper, the conflict characteristics of right-turn vehicles and pedestrians at signalized intersections are analyzed, and the corresponding optimal control methods are put forward, so that the conflict between the two can be effectively alleviated to a certain extent. First of all, by introducing and combing the current research situation at home and abroad, this paper determines the research ideas and main methods. In this paper, the intersection of Hongqi Street and Gongnongda Road and the intersection of Yatai Street and Nanhu Road are selected as the investigation sites under normal right turn and ahead right turn. Tracpro software is used to collect and analyze the coordinate, time and point speed of right-hand and pedestrian. The conflict process between pedestrians and right-turn motor vehicles is observed and their traffic characteristics are analyzed in terms of speed, arrival law and headway distance. After the definition and classification of traffic conflicts are defined, the conflict characteristics such as velocity, acceleration change and interference delay are analyzed. It is found that there are three states in the process of pedestrian and right-turn vehicles passing through the conflict zone, and the traffic characteristics under different states are studied in a general way. The method of setting the no-go phase of right-turn is determined to alleviate the conflict between people and vehicles at the intersection, and the delay between pedestrians and right-turn vehicles before and after the implementation of the scheme is compared. At the same time, according to the current situation of the intersection studied, the signal control time of the right turn is calculated, and the time of the phase of the right turn is about 11s-13s. On the basis of the tolerant waiting time of pedestrians, signal control is set up for early right turn and pedestrians during morning and evening rush hour. The investigation shows that proper signal control should be considered when the average delay of pedestrians exceeds 15 s. Finally, the work and shortcomings of the paper are summarized.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：U491.23

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