Abstract

E-scooter-sharing and e-bike-sharing systems are accommodating and easing the increased traffic in dense cities and are expanding considerably. However, these new micro-mobility transportation modes raise numerous operational and safety concerns. This study analyzes e-scooter and dockless e-bike sharing system user behavior. We investigate how average trip speed change depending on the day of the week and the time of the day. We used a dataset from the city of Austin, TX from December 2018 to May 2019. Results show that the trip average speed for e-bikes ranges between 3.01 and 3.44 m/s, which is higher than that for e-scooters (2.19 to 2.78 m/s). Results also show a similar speed pattern for the average speed of e-bikes and e-scooters throughout the days of the week and a different speed pattern for the average speed of e-bikes and e-scooters over the hours of the day. We found that users tend to ride e-bikes and e-scooters with a slower average speed for recreational purposes compared to when they are ridden for commuting purposes. Results also show that the different users’ speeds in this mixed traffic stream of Austin City should be considered in the policymaking process. It must be recognized that the disparity in speeds might increase the odds of creating the conditions for a crash between different modes in roads. This study is a building block in this field, which serves as a first of its kind, and sheds the light of significant new understanding of this emerging class of shared-road users.

摘要

电动踏板车共享和电动自行车共享系统正在适应并缓解人口稠密城市中日益增加的交通量，并且正在大大扩展。但是，这些新的微型交通运输模式引起了许多运营和安全问题。这项研究分析了电动踏板车和无坞站电动自行车共享系统的用户行为。我们调查平均旅行速度如何根据一周中的一天和一天中的时间而变化。我们使用了2018年12月至2019年5月得克萨斯州奥斯汀市的数据集。结果显示，电动自行车的平均出行速度为3.01至3.44 m / s，高于电动踏板车的平均出行速度（2.19至2.78 m / s）。结果还显示，在一周中的每一天中，电动自行车和电动踏板车的平均速度模式相似，而在一天中的小时内，电动自行车和电动踏板车的平均速度模式则不同。我们发现，与出于通勤目的骑乘相比，出于娱乐目的，用户倾向于以较低的平均速度骑电动自行车和电动踏板车。结果还表明，在决策过程中应考虑奥斯汀市这种混合交通流中不同用户的速度。必须认识到，速度的差异可能会增加在道路上不同模式之间造成碰撞的条件。这项研究是该领域的基础，是同类研究中的第一个，