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

Author

Listed:
  • Wang, Ruoyu
  • Zhang, Jiaying
  • Liu, Dongwei
  • Yao, Yao
  • Cao, Mengqiu

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.

Suggested Citation

  • Wang, Ruoyu & Zhang, Jiaying & Liu, Dongwei & Yao, Yao & Cao, Mengqiu, 2025. "Exploring the nonlinear effects of greenery on active travel among the ageing population," Journal of Transport Geography, Elsevier, vol. 127(C).
    • Handle: RePEc:eee:jotrge:v:127:y:2025:i:c:s0966692325001905
    DOI: 10.1016/j.jtrangeo.2025.104299
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