Synergies between repositioning and charging strategies for shared autonomous electric vehicle fleets

Dean, Matthew D.; Gurumurthy, Krishna Murthy; de Souza, Felipe; Auld, Joshua; Kockelman, Kara M.

doi:10.1016/j.trd.2022.103314

Title: Synergies between repositioning and charging strategies for shared autonomous electric vehicle fleets

Journal Article · Sat May 28 00:00:00 EDT 2022 · Transportation Research. Part D, Transport and Environment

DOI:https://doi.org/10.1016/j.trd.2022.103314· OSTI ID:1902639

Dean, Matthew D. ^[1]; Gurumurthy, Krishna Murthy ^[2]; de Souza, Felipe ^[2]; Auld, Joshua ^[2]; Kockelman, Kara M. ^[1]

Univ. of Texas at Austin, TX (United States)
Argonne National Lab. (ANL), Argonne, IL (United States)

The emergence of on-demand shared autonomous electric vehicle (SAEV) service requires careful charging station planning and a joint charging and repositioning strategy to mitigate empty travel. This study couples charging and repositioning events as a means of improving service quality (rider wait times), reducing empty travel due to repositioning or charging, and improving fleet utilization (average daily trips per vehicle and charging queues). This synergy is explored for the Austin, Texas region using POLARIS, an agent-based model. On average, wait times were 39% lower, and average daily trips served per SAEV increased up to 6.4 (or 28%) compared to SAEV repositioning with heuristic charging. Coupling repositioning with charging decreased the fleet's percent empty travel on average by 1.6%, relative to the scenario treating them as independent events (which varies by charging station design). Sparser charging stations reduce investment costs, and operators can leverage this framework to keep traveler wait times low.

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Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; National Science Foundation (NSF); USDOE

Grant/Contract Number:: AC02-06CH11357; DGE-1610403

OSTI ID:: 1902639

Alternate ID(s):: OSTI ID: 1871229

Journal Information:: Transportation Research. Part D, Transport and Environment, Vol. 108; ISSN 1361-9209

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Title: Synergies between repositioning and charging strategies for shared autonomous electric vehicle fleets

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