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Spatial lock-in and a utilisation trap constrain sustainable scaling of shared micromobility

空間的ロックインと利用の罠がシェア型マイクロモビリティの持続可能な拡大を制約する (AI 翻訳)

Qiu W, Ren C, Zhang Y, Li X, Lu Y, Cao M, Chen X, Zhang X, Tyler N, Webster C

Research Squareプレプリント2026-06-16#エネルギー転換Origin: Global対象セクター: transport
DOI: 10.21203/rs.3.rs-9947547/v1
原典: https://doi.org/10.21203/rs.3.rs-9947547/v1

🤖 gxceed AI 要約

日本語

シェア型マイクロモビリティ（SMM）の持続可能な拡大可能性を、米国・豪州・ニュージーランドの64のSMMの運用データ（2019～2025年）を用いて分析。活動は都市中心部に集中し、成長は供給側の車両増加に依存する。1台あたりの利用率は低く、存続・閉鎖の分岐は導入後3四半期以内に現れる。空間的・運用上の制約がSMMの脱炭素効果を制限している。

English

Using operational data from 64 shared micromobility services (SMMs) across the US, Australia, and New Zealand (2019-2025), this study finds that SMM activity remains concentrated in urban cores and growth is supply-driven. Per-vehicle utilization is low but is a key indicator of long-term viability. The findings highlight spatial and operational barriers that constrain the sustainable scaling of SMMs for urban decarbonization.

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

📝 gxceed 編集解説 — Why this matters

日本のGX文脈において

日本ではシェアサイクルは普及しているが、シェア電動キックボードは限定的。本論文は、都市がマイクロモビリティを脱炭素手段として支援する際の判断基準（利用率や都市形態）を提供し、日本の都市交通政策にも示唆を与える。

In the global GX context

Globally, shared micromobility is promoted as a decarbonization tool, but many systems fail. This paper provides empirical evidence that per-vehicle utilization and built environment are early predictors of success, helping cities and operators make evidence-based deployment decisions.

👥 読者別の含意

🔬研究者:Shows that utilization rate is a leading indicator of SMM viability, offering a new metric for sustainability research.

🏢実務担当者:Provides early diagnostic tools (utilization, built environment) to assess whether a micromobility system is likely to survive.

🏛政策担当者:Suggests cities should focus on supporting high-utilization systems and avoid blanket expansion to ensure decarbonisation benefits.

📄 Abstract（原文）

<title>Abstract</title> <p>Shared micromobility services (SMMs) are increasingly promoted as a scalable pathway to urban transport decarbonisation, yet their capacity for sustainable expansion across automobile-dependent cities remains uncertain. Using operational data from 64 SMMs across the United States, Australia, and New Zealand between 2019 and 2025, we show that SMM activity stays strongly concentrated in urban cores, and growth is driven primarily by supply-side fleet expansion. Importantly, Per-vehicle utilisation remains low in most systems but emerges as the key signal of long-term viability, with surviving and closed systems diverging within the first three quarters after launch, whereas widely available measures of the built environment provide an early diagnostic of whether SMMs are likely to persist and scale sustainably. These findings suggest that the promise of SMMs is constrained by persistent operational and spatial barriers, and offer a basis for more targeted decisions on where and how cities support deployment.</p>

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