信号交叉口行人违章过街风险评估研究

发布时间：2018-04-16 18:00

本文选题：行人过街 + 风险评估　；参考：《苏州科技学院》2015年硕士论文

【摘要】：信号交叉口行人违章过街是造成我国行人交通事故的重要原因之一。如何避免行人违章过街,降低行人违章过街的风险成为了亟待解决的交通安全问题。而在以往对行人过街的研究中,多集于对行人交通、行为特性的研究,或对行人与车辆冲突发生后的严重性进行研究。本研究通过实地交通调查,分析了行人违章过街的特性,研究影响行人违章的风险因素,分析行人发生违章过街的风险概率,进而评估行人违章过街的风险。首先,采用计划行为理论,对过街行人开展问卷调查。分析了行人过街的行为、心理特性,识别行人过街的风险。其次,通过对典型信号交叉口的实地调查,获取行人过街数据,从人行横道的交通状况、道路环境及过街设施三方面分析行人违章过街的风险因素。通过与行人过街违章率进行Pearson相关分析,提取影响行人违章率的显著风险因素,并建立行人过街违章率模型。最后,采用生存分析法分析造成行人违章过街的最大等待时间,并通过建立COX比例风险模型,定量分析行人违章过街的危险度,以及行人在不同情况下违章过街的风险概率。通过评估信号交叉口行人违章过街的风险,对于指导交叉口的规划设计与优化信号配时,合理配置行人交通的时空资源具有现实借鉴作用。
[Abstract]:Pedestrian crossing at signalized intersection is one of the important causes of pedestrian accidents in China.How to avoid pedestrian crossing and reduce the risk of pedestrian crossing has become an urgent problem of traffic safety.In the past researches on pedestrian crossing are mainly focused on the study of pedestrian traffic behavior characteristics or the severity of pedestrian-vehicle conflict.Through the field traffic investigation, this study analyzes the characteristics of pedestrian crossing, studies the risk factors affecting pedestrian violations, analyzes the risk probability of pedestrian crossing, and then evaluates the risk of pedestrian crossing.First of all, using the theory of planning behavior, a questionnaire survey was conducted on pedestrians crossing the street.The behavior and psychological characteristics of pedestrian crossing were analyzed, and the risk of pedestrian crossing was identified.Secondly, through the field investigation of typical signalized intersection, the pedestrian crossing data are obtained, and the risk factors of pedestrian crossing are analyzed from three aspects: traffic condition, road environment and crossing facilities.Through the Pearson correlation analysis with pedestrian traffic violation rate, the significant risk factors affecting pedestrian violation rate were extracted, and the pedestrian crossing violation rate model was established.Finally, the survival analysis method is used to analyze the maximum waiting time for pedestrians to cross the street, and by establishing the COX proportional risk model, the risk degree of pedestrian crossing is quantitatively analyzed, and the risk probability of pedestrians crossing the street under different circumstances is analyzed.By evaluating the risk of pedestrians crossing the street in signalized intersections, it is useful for guiding the planning and design of intersections and optimizing the signal matching, and the reasonable allocation of space and time resources of pedestrian traffic can be used as a practical reference.
【学位授予单位】：苏州科技学院
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U491

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