路段无信号控制人行横道行人过街服务水平研究

通过分析无信号控制路段人行横道处行人过街行为特性、行人可接受等待时间、行人选择通过的机动车临界时距等,建立基于间隙接受理论的行人过街阻力模型,计算得到过街阻力系数为15%的等待时间,并根据行人真实感受的聚类分析结果划分评价标准,最后据此评价行人过街服务水平。此方法结合了基于冲突和基于感受评价的优点,有效解决了以往研究中行人感受主观性、指标复杂性、实践操作困难等问题。

Study on Pedestrian Level of Service at Unsignalized Mid-block Crosswalks

Through the analysis on the characteristics of pedestrians crossing behavior,pedestrians’ acceptable waiting time,and pedestrians’ choice of vehicles critical time interval at unsignalized mid-block crosswalks,pedestrian crossing resistance model has been built,and then the waiting time with the resistance coefficient 15% has been worked out.In the end,pedestrian level of service at unsignalized mid-block crosswalks division standard has been established based on pedestrians’ real feeling.This method combines the advantages of traffic conflict and pedestrians’ feeling,so that it can overcome the shortcoming of the previous studies,including the subjectivity of pedestrians experience,the complexity of index and practical operational difficulties.