Exploring the nonlinear effects of greenery on active travel among the ageing population

Ruoyu Wang, Jiaying Zhang, Dongwei Liu, Yao Yao and Mengqiu Cao

Journal of Transport Geography, 2025, vol. 127, issue C

Abstract: This paper examines the nonlinear influences of the quantity and quality of street-level greenery on active travel among older adults. The active travel information was obtained from the Study on Global Ageing and Adult Health conducted in Shanghai, China. Street-level greenery was assessed based on street view data and a deep learning approach, namely street view greenery quantity (SVG-quantity) and quality (SVG-quality). Gradient boosting decision tree models and SHapley Additive exPlanations were applied. The results showed that SVG-quantity had a positive and nonlinear link with active travel. However, SVG-quality was positively correlated to the propensity for active travel, but the association became inverse when SVG-quality exceeded a specific cut-off point. SVG-quality also had a nonlinear and positive association with the duration of active travel. This research demonstrates the importance of improving the provision of street-level greenery in urban areas, which is crucial for facilitating active lifestyles among the ageing population.

Keywords: Street-level greenery; Active travel; Older adults; Nonlinear effects; Street view data (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:jotrge:v:127:y:2025:i:c:s0966692325001905

DOI: 10.1016/j.jtrangeo.2025.104299

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