基于交叉口视距三角形的交通冲突研究
发布时间：2018-08-22 15:40
【摘要】：平面交叉口作为城市道路的重要节点,承担着疏通各个方向交通流的责任,是交通冲突的集中点。交通冲突不仅影响平面交叉口的运行效率,还可能导致交通事故发生,为提高平面交叉口的安全性有必要对导致交通冲突发生的因素进行深入研究。导致交通冲突发生的因素很多,交叉口视距三角形是其中一个重要的因素,从驾驶行为上来看,驾驶员有80%以上的信息来源于视觉,驾驶员只有保证在视距三角形范围内无障碍看到交叉口的全貌,才能有足够长的距离去预测和避免潜在冲突,达到安全通过交叉口的目的。 针对以上存在的问题,本文以机动车与机动车之间的冲突为研究对象,从视距三角形的角度分析其对交通冲突产生的影响,为减少交通冲突提高平面交叉口安全性能提出一些指导性意见。本文首先对交通冲突基础理论进行分析和总结,以无信号T字型交叉口为研究对象,从交通冲突本身入手,分析交通冲突的产生过程、交通冲突分类及交通冲突严重性判定方法；其次分析交叉口限速、车辆、障碍物、角度等因素对无信号交叉口视距三角形的影响,依据几何知识、停车视距以及间隙接受理论,分别得出了无控交叉口及次路停控制交叉口视距三角形的计算模型；再次结合本文研究目的制定了交叉口的选取方案和交通冲突数据的采集方案,并采用单因素方差分析方法对现场收集的冲突数据进行统计分析,根据分析结果判断视距三角形对交通冲突是否造成了影响；文章最后对安全视距不符合要求的平面交叉口提出了改造建议。
[Abstract]:As an important node of urban roads, intersection undertakes the responsibility of dredging traffic flow in all directions and is the concentration point of traffic conflict. Traffic conflicts not only affect the operational efficiency of intersections, but also lead to traffic accidents. In order to improve the safety of intersections, it is necessary to study the factors that lead to traffic conflicts. There are many factors leading to traffic conflicts, among which the triangulation of visual distance at intersection is one of the important factors. In terms of driving behavior, more than 80% of the information of drivers comes from vision. In order to predict and avoid the potential conflict, the driver can achieve the goal of safely passing through the intersection only by ensuring that the complete view of the intersection can be seen without hindrance within the range of the visual distance triangle, so that the driver can predict and avoid the potential conflict at a long distance. In view of the above problems, this paper takes the conflict between motor vehicle and motor vehicle as the research object, and analyzes its influence on traffic conflict from the angle of view distance triangle. In order to reduce traffic conflicts and improve the safety performance of intersections, some guiding suggestions are put forward. In this paper, the basic theory of traffic conflict is analyzed and summarized firstly. Taking the unsignaled T-shaped intersection as the research object, the process of the traffic conflict is analyzed from the traffic conflict itself. Secondly, the effects of speed limit, vehicle, obstacle, angle and other factors on the visual distance triangle of unsignalized intersection are analyzed. According to geometric knowledge, parking horizon and gap acceptance theory, traffic conflict classification and severity of traffic conflict are analyzed. The calculation models of the visual distance triangle of the uncontrolled intersection and the secondary stop control intersection are obtained respectively. The selection scheme and the traffic conflict data collection scheme of the intersection are worked out in combination with the purpose of the research in this paper. The single factor variance analysis method is used to analyze the conflict data collected on the spot, and according to the analysis results, the influence of the horizon triangle on the traffic conflict is judged. At the end of the paper, some suggestions are put forward for the intersection which does not meet the requirements of safety horizon.
【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】：U491.265
本文编号：2197551
[Abstract]:As an important node of urban roads, intersection undertakes the responsibility of dredging traffic flow in all directions and is the concentration point of traffic conflict. Traffic conflicts not only affect the operational efficiency of intersections, but also lead to traffic accidents. In order to improve the safety of intersections, it is necessary to study the factors that lead to traffic conflicts. There are many factors leading to traffic conflicts, among which the triangulation of visual distance at intersection is one of the important factors. In terms of driving behavior, more than 80% of the information of drivers comes from vision. In order to predict and avoid the potential conflict, the driver can achieve the goal of safely passing through the intersection only by ensuring that the complete view of the intersection can be seen without hindrance within the range of the visual distance triangle, so that the driver can predict and avoid the potential conflict at a long distance. In view of the above problems, this paper takes the conflict between motor vehicle and motor vehicle as the research object, and analyzes its influence on traffic conflict from the angle of view distance triangle. In order to reduce traffic conflicts and improve the safety performance of intersections, some guiding suggestions are put forward. In this paper, the basic theory of traffic conflict is analyzed and summarized firstly. Taking the unsignaled T-shaped intersection as the research object, the process of the traffic conflict is analyzed from the traffic conflict itself. Secondly, the effects of speed limit, vehicle, obstacle, angle and other factors on the visual distance triangle of unsignalized intersection are analyzed. According to geometric knowledge, parking horizon and gap acceptance theory, traffic conflict classification and severity of traffic conflict are analyzed. The calculation models of the visual distance triangle of the uncontrolled intersection and the secondary stop control intersection are obtained respectively. The selection scheme and the traffic conflict data collection scheme of the intersection are worked out in combination with the purpose of the research in this paper. The single factor variance analysis method is used to analyze the conflict data collected on the spot, and according to the analysis results, the influence of the horizon triangle on the traffic conflict is judged. At the end of the paper, some suggestions are put forward for the intersection which does not meet the requirements of safety horizon.
【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】：U491.265
【参考文献】
相关期刊论文 前5条
1 刘江;刘世杰;荣建;任福田;;视距自动计算在仿真系统中的实现[J];北京工业大学学报;2006年11期
2 张建旭;李国文;;畸形交叉口安全行车视距研究[J];公路;2011年06期
3 罗石贵,周伟;路段交通冲突技术研究[J];公路交通科技;2001年01期
4 袁浩;程建川;黄晓明;;交叉口视距的三维模型研究[J];公路交通科技;2007年12期
5 张春平，景天然;城市道路交叉口交通安全评价研究[J];同济大学学报(自然科学版);1994年01期
相关博士学位论文 前1条
1 俄文娟;无信号交叉口车车冲突检测与消解算法研究[D];吉林大学;2012年
，本文编号：2197551
本文链接：https://www.wllwen.com/kejilunwen/jiaotonggongchenglunwen/2197551.html
