Study on the model of pedestrian cross-time in signalized intersection  

信号交叉口行人穿越时间模型研究(英文)

作　　者：徐良杰[1] 

机构地区：[1]武汉理工大学交通学院,武汉430063

出　　处：《Journal of Southeast University(English Edition)》2008年第4期513-516,共4页东南大学学报（英文版）

基　　金：The National Natural Science Foundation of China(No.50778141);the National Basic Research Program of China(973Program)(No.2006CB705505);National Key Technology R&D Program during the11th Five Year Plan of China(No.2006BAJ18B07)

摘　　要：For studying the law of pedestrian cross-time in the signalized intersection, based on gap theory, a probability chorological discipline model of crossing pedestrians is built based on the observed data. Moreover, the number of pedestrians passing through in a critical gap is estimated under different conditions by three models. Then the models of pedestrian crosswalk average time, the 85th percentile pedestrian cross-time and the 90th percentile pedestrian cross-time are deduced. By quantitative analyses and the exemplification of the models, the main correlative factors acting on pedestrian cross-time are found, including the length of the crosswalk, the probability of the time-headway being less than the critical gap and the number of the turned motor vehicles in the intersection. The results indicate that the estimated errors of the models are less than 5%.为了研究信号交叉口行人穿越时间的特性规律,应用间隙理论和实际观测数据,建立了行人穿越的概率统计模型.进而建立了3种不同穿越条件下行人穿越数的估算模型.在此基础上,构建了行人平均过街时间模型、第85分位行人过街时间模型和第90分位行人过街时间模型.采用定量分析和模型实证分析方法,发现行人穿越的主要影响因素有:人行过街横道长度、车头时距小于临界间隙的概率以及交叉口内的转弯车辆数.结果表明模型估计误差均小于5%.

关 键 词：signalized intersection CONFLICT critical gap pedestrian cross-time 

分 类 号：U491[交通运输工程—交通运输规划与管理]