Fleet availability analysis and prediction for shared e-scooters: An energy perspective

IF 7.3 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment Pub Date : 2024-09-24 DOI:10.1016/j.trd.2024.104425

Jiahui Zhao , Jiaming Wu , Sunney Fotedar , Zhibin Li , Pan Liu

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引用次数: 0

Abstract

E-scooters have become a prevalent mode of transportation in many cities. The availability of e-scooters is a crucial indicator of service quality but has not been sufficiently investigated. We propose a two-stage method for fleet availability analysis and prediction, considering stochastic demand and a new energy perspective. First, we developed a SpatioTemporalAttentionNet (STAN) model to predict trip OD. Second, we propose a Monte Carlo-based algorithm to match demand with existing e-scooters across spatiotemporal and energy dimensions. We conduct case studies using real-world data from Gothenburg, Sweden. The results indicate an average unavailability rate of 6.71%, nearly doubling that of the benchmark group, which uses a 20% SoC threshold for determining availability. This rate is significant considering the large fleet size and highlights the need to incorporate battery levels into fleet management. We further investigate the multifaceted impacts of land use and walking distance on availability dynamics.

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共享电动滑板车的车队可用性分析和预测：能源视角

在许多城市，电动滑板车已成为一种普遍的交通方式。电动滑板车的可用性是衡量服务质量的重要指标，但尚未得到充分研究。考虑到随机需求和新能源观点，我们提出了一种分两个阶段进行车队可用性分析和预测的方法。首先，我们开发了一个时空注意力网络（STAN）模型来预测行程 OD。其次，我们提出了一种基于蒙特卡罗的算法，以匹配现有电动滑板车在时空和能源方面的需求。我们利用瑞典哥德堡的实际数据进行了案例研究。结果表明，平均不可用率为 6.71%，几乎是使用 20% SoC 临界值来确定可用性的基准组的两倍。考虑到车队规模庞大，这一比率非常高，突出表明有必要将电池电量纳入车队管理。我们进一步研究了土地使用和步行距离对可用性动态的多方面影响。

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来源期刊

Transportation Research Part D-transport and Environment 工程技术-运输科技

CiteScore

14.40

自引率

9.20%

发文量

314

审稿时长

39 days

期刊介绍： Transportation Research Part D: Transport and Environment focuses on original research exploring the environmental impacts of transportation, policy responses to these impacts, and their implications for transportation system design, planning, and management. The journal comprehensively covers the interaction between transportation and the environment, ranging from local effects on specific geographical areas to global implications such as natural resource depletion and atmospheric pollution. We welcome research papers across all transportation modes, including maritime, air, and land transportation, assessing their environmental impacts broadly. Papers addressing both mobile aspects and transportation infrastructure are considered. The journal prioritizes empirical findings and policy responses of regulatory, planning, technical, or fiscal nature. Articles are policy-driven, accessible, and applicable to readers from diverse disciplines, emphasizing relevance and practicality. We encourage interdisciplinary submissions and welcome contributions from economically developing and advanced countries alike, reflecting our international orientation.