Journal Articles Journal of Transport and Health Year : 2025

Cool routes: Assessing how green space and paved paths modify heat's effects on urban bicycling

Abstract

Background: Understanding how heat’s effect on bicycling varies spatially across the urban environment can inform who may be bicycling in the heat and how urban-planning measures can improve thermal comfort for bicyclists. Objective: We estimated effects of heat on recreational and commute bicycling in Denver, Colorado, USA using city-wide, finely resolved bicycling data and assessed heterogeneity in effects by area-level social vulnerability and proximity to the city center and whether off-street paths and green-space measures, if intervened upon, modify these effects. Methods: From Strava Metro, we obtained daily data on recreational and commute bicycling in Denver on each street segment (N = 218,641) during the summer months of 2019–2023. We estimated effects of hot (95–99 ◦F [35–37 ◦C]) and very hot (100–104 ◦F [38–40 ◦C]) temperature on daily bicycling using model-based standardization, controlling for temporally varying confounders. We assessed effect heterogeneity by area-level social vulnerability and proximity to the city center. To assess effect modification by intervention (defined in text) of paved paths and green-space measures, we additionally controlled for social vulnerability and proximity to the urban core. Results: Heat’s attenuating effects on recreational and commute bicycling were stronger in central Denver but did not differ across area-level social vulnerability. Heat’s attenuating effects were somewhat weaker on off-street paths and considerably weaker in greener areas and near blue space. Conclusions: Results support the provision of paved paths and access to green and blue space to support bicycling during hot weather

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hal-05284622 , version 1 (15-11-2025)

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Michael Garber, David Rojas-Rueda, Paquito Bernard, Tarik Benmarhnia. Cool routes: Assessing how green space and paved paths modify heat's effects on urban bicycling. Journal of Transport and Health, 2025, 44, pp.102159. ⟨10.1016/j.jth.2025.102159⟩. ⟨hal-05284622⟩
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