Assessing the applicability of the 15-minute city: Insights from a spatial accessibility perspective

作者：Xuan Feng, Ning Jia, Xiaohan Su, Matthew D. Adams, Yongqi Deng, Shuai Ling · 发表于：Transportation Research Part A Policy and Practice · 年份：2025 · DOI：10.1016/j.tra.2025.104579 · 被引用次数：14 · 研究领域：Urban Transport and Accessibility、Urban and Freight Transport Logistics、Smart Parking Systems Research

The concept of a 15-minute city proposes that residents should have access to all basic services within a short walking distance from their homes. However, most previous studies have focused on macro-level urban planning or land use configurations, while fine-grained, community-level evaluations that integrate actual travel constraints such as road network structures and the spatial distribution of service facilities remain underdeveloped. To explore the current state of the 15-minute city’s implementation at the community level and identify potential improvements, this study takes City of Toronto as an empirical case, and incorporates road network-based isochrones into an improved two-step floating catchment area model to calculate the spatial distribution of accessibility. A geographically weighted regression (GWR) model is used to analyze the impact of road network structure and the number of facilities on accessibility. The analysis results indicate that current urban infrastructure cannot meet the travel demands of the 15-minute city, particularly for walking. In the case of other “x-minute cities,” extending the travel time threshold is associated with improved accessibility in certain urban areas, but these benefits are limited to regions around service hubs, while accessibility in other areas tends to show a decrease in accessibility. This study offers recommendations for improving the 15-minute accessibility. Namely, if policymakers aim to encourage more residents to...