Abstract

Shared e-mobility is a category of emerging mobility services that includes electric carsharing, e-bike sharing, and e-scooter sharing. These services are expected to reduce the negative externalities of road transport in cities, which is currently dominated by fossil-fuel-powered private car trips. In order to better inform the development and promotion of these services and indicate directions for further research, we conducted a comprehensive review of existing literature on the three shared e-mobility modes focusing on their usage pattern, demand estimation, and potential impacts. We found that despite the different vehicle capabilities, all three shared e-mobility services are mainly used for short trips, and their current users are mostly male, middle-aged people with relatively high income and education. The demand of all shared e-mobility modes share many common predictors: they appeal to people with similar socio-demographic characteristics and generate higher demand in locations with better transport connectivity and more points of interest. Shared e-mobility services can potentially lead to positive impacts on transportation and the environment, such as reducing car use, car ownership, and greenhouse gas emissions. However, the magnitude of these benefits depends on the specific operational conditions of the services such as the fuel type and lifetime of shared vehicles. The impact of each shared e-mobility mode is also expected to be affected by other coexisting shared e-mobility modes due to both complementarity and competition. Future directions should include studying the competition between and integration of multiple shared e-mobility modes.

摘要

共享电动汽车是一种新兴的移动服务类别，包括电动汽车共享、电动自行车共享和电动滑板车共享。预计这些服务将减少城市道路交通的负面外部性，目前城市道路交通以化石燃料为动力的私家车出行占主导地位。为了更好地为这些服务的开发和推广提供信息并指明进一步研究的方向，我们对现有的三种共享电动交通模式的文献进行了全面回顾，重点关注它们的使用模式、需求估计和潜在影响。我们发现，尽管车辆能力不同，但三项共享电动出行服务均主要用于短途出行，目前用户多为收入和教育程度较高的男性、中年人。所有共享电动交通模式的需求都有许多共同的预测因素：它们吸引具有相似社会人口特征的人，并在交通连接性更好和兴趣点更多的地方产生更高的需求。共享电动汽车服务可能会对交通和环境产生积极影响，例如减少汽车使用、汽车保有量和温室气体排放。然而，这些好处的大小取决于服务的具体运营条件，例如共享车辆的燃料类型和寿命。由于互补性和竞争性，每种共享电动汽车模式的影响也预计会受到其他共存共享电动汽车模式的影响。