【摘要】：平面交叉口作為城市道路的重要節(jié)點(diǎn),承擔(dān)著疏通各個(gè)方向交通流的責(zé)任,是交通沖突的集中點(diǎn)。交通沖突不僅影響平面交叉口的運(yùn)行效率,還可能導(dǎo)致交通事故發(fā)生,為提高平面交叉口的安全性有必要對(duì)導(dǎo)致交通沖突發(fā)生的因素進(jìn)行深入研究。導(dǎo)致交通沖突發(fā)生的因素很多,交叉口視距三角形是其中一個(gè)重要的因素,從駕駛行為上來看,駕駛員有80%以上的信息來源于視覺,駕駛員只有保證在視距三角形范圍內(nèi)無障礙看到交叉口的全貌,才能有足夠長(zhǎng)的距離去預(yù)測(cè)和避免潛在沖突,達(dá)到安全通過交叉口的目的。 針對(duì)以上存在的問題,本文以機(jī)動(dòng)車與機(jī)動(dòng)車之間的沖突為研究對(duì)象,從視距三角形的角度分析其對(duì)交通沖突產(chǎn)生的影響,為減少交通沖突提高平面交叉口安全性能提出一些指導(dǎo)性意見。本文首先對(duì)交通沖突基礎(chǔ)理論進(jìn)行分析和總結(jié),以無信號(hào)T字型交叉口為研究對(duì)象,從交通沖突本身入手,分析交通沖突的產(chǎn)生過程、交通沖突分類及交通沖突嚴(yán)重性判定方法；其次分析交叉口限速、車輛、障礙物、角度等因素對(duì)無信號(hào)交叉口視距三角形的影響,依據(jù)幾何知識(shí)、停車視距以及間隙接受理論,分別得出了無控交叉口及次路�？刂平徊婵谝暰嗳切蔚挠�(jì)算模型；再次結(jié)合本文研究目的制定了交叉口的選取方案和交通沖突數(shù)據(jù)的采集方案,并采用單因素方差分析方法對(duì)現(xiàn)場(chǎng)收集的沖突數(shù)據(jù)進(jìn)行統(tǒng)計(jì)分析,根據(jù)分析結(jié)果判斷視距三角形對(duì)交通沖突是否造成了影響；文章最后對(duì)安全視距不符合要求的平面交叉口提出了改造建議。
[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.
【學(xué)位授予單位】：西南交通大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：U491.265

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本文編號(hào)：2197551