为合理设置行人过街绿灯时间，保障行人安全和提高运行效率，采用数理统计方 法对人群穿越时间进行建模． 分析了信号控制下行人过街的行为特性，将人群穿越人行横 道的时间分为基本穿越时间和阻滞延误时间． 从双向行人相互干扰特性出发，研究了双向 行人相遇阶段中行人方向比率与人行横道实际容纳能力的关系，在此基础上构建了人群 穿越时间模型，并通过数据调查验证该模型的有效性． 结果表明，文中模型计算结果与实 际调查数据相比，最大相对误差和平均相对误差分别为 13． 21% 和 6． 26% ，模型精度高于 HCM 中的计算模型，可为行人信号配时设计提供参考．

In order to set the green time of pedestrian crossing reasonably，ensure the safety of pedestrians and improve their crossing efficiency，the modeling of the pedestrian platoon crossing time is performed by means of the mathematical statistics method． By analyzing pedestrians' behavior characteristics at a signalized crosswalk，the pedestrian platoon crossing time is divided into the basic crossing time and the frictional delay． Then，based on the interference characteristic of bidirectional pedestrians，the relationship between the directional split ratio and the actual capacity of the crosswalk during the encounter phase of bidirectional pedestrians is investigated． On this basis，a pedestrian platoon crossing time model is proposed，and a data survey is adopted to verify the effectiveness of this model． The results show that，in comparison with the actual survey data，the calculation results of the proposed model shows a maximum relative error of 13． 21% and an average relative error of 6． 26% ，which means that the proposed model has a higher accuracy than the model of the HCM method． Thus，the proposed model can provide guidance for the pedestrian signal timing design．