Mixed-traffic crosswalks are a prevalent scene in urban traffic. Understanding the movement characteristics of bidirectional e-bike-pedestrian mixed flow is helpful to enhance traffic efficiency at an intersection. In this research, a controlled experiment on bidirectional e-bike-pedestrian mixed flow was conducted. There are three variables, namely the proportion of e-bike riders (i.e., 0.5 and 0.3), the directional split ratio (namely, 1:1, 1:2 and 1:5) and the presence of obstacles on both sides of the crosswalk (i.e., yes and no). Petrack software were used to extract the participants’ trajectories. Passing time, detour ratio, selection preference, fundamental diagrams, the temporal and spatial characteristics and congestion level are analysed depending on the trajectories. It is discovered that a higher proportion of e-bike riders combined with a smaller directional split ratio contributes to increasing passing time of e-bike riders. With the decreasing directional split ratio, the average detour ratios of both pedestrians and e-bike riders decrease. With the decreasing proportion of e-bike riders, the average detour ratio of pedestrians increases, while that of e-bike riders decreases. The average crossing speed of the minor flow is greater than that of the major flow. With the decrease of the directional split ratio, the congestion level in the measurement area also reduces. Pedestrians in balanced flow are more likely to cause large congestion degree than e-bike riders. These results are beneficial for the design of crosswalks, pedestrian crossing management and the configuration of traffic signals.

中文翻译：

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信号灯人行横道双向行人-电动自行车混合流的行为特征：一项实验研究


混合交通人行横道是城市交通中普遍存在的场景。了解双向电动自行车-行人混合流的运动特性有助于提高交叉路口的交通效率。在本研究中，进行了双向电动自行车-行人混流的对照实验。有三个变量，即电动自行车骑手的比例（即 0.5 和 0.3）、定向分流比（即 1：1、1：2 和 1：5）和人行横道两侧是否存在障碍物（即是和否）。使用 Petrack 软件提取参与者的轨迹。根据轨迹分析通过时间、绕行率、选择偏好、基本图、时间和空间特征以及拥堵程度。研究发现，较高的电动自行车骑手比例与较小的定向分流比相结合，有助于增加电动自行车骑手的通过时间。随着定向分流比的减小，行人和电动自行车骑手的平均绕行比均降低。随着电动自行车骑手比例的降低，行人的平均绕行率增加，而电动自行车骑手的平均绕行率降低。次流的平均穿越速度大于主流的平均穿越速度。随着定向分流比的降低，测量区域的拥塞程度也降低。平衡流中的行人比电动自行车骑手更容易造成较大的拥堵程度。这些结果有利于人行横道的设计、人行横道管理和交通信号灯的配置。