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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%.
In order to study the peculiarity of pedestrian crossing time at signalized intersections, a probabilistic statistical model of pedestrian crossing was established by applying the theory of gap and actual observational data, and then an estimation model of pedestrian crossing number under three different crossing conditions was established.On this basis, The average pedestrian crossing time model, the 85th pedestrian crossing time model and the 90th pedestrian crossing time model were constructed.Using quantitative analysis and model empirical analysis, the main influencing factors of pedestrian crossing were found as follows: pedestrian crossing length, The probability that the time is less than the critical clearance, and the number of turning vehicles in the intersection, the results show that the estimated errors of the models are less than 5%.