Spatially Varying Effects of Street Greenery on Walking Time of Older Adults

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Linchuan Yang
  • Jixiang Liu
  • Yuan Liang
  • Yi Lu
  • Hongtai Yang

Detail(s)

Original languageEnglish
Article number596
Journal / PublicationISPRS International Journal of Geo-Information
Volume10
Issue number9
Online published10 Sep 2021
Publication statusPublished - Sep 2021

Link(s)

Abstract

Population aging has become a notable and enduring demographic phenomenon worldwide. Older adults' walking behavior is determined by many factors, such as socioeconomic attributes and the built environment. Although a handful of recent studies have examined the influence of street greenery (a built environment variable readily estimated by big data) on older adults' walking behavior, they have not focused on the spatial heterogeneity in the influence. To this end, this study extracts the socioeconomic and walking behavior data from the Travel Characteristic Survey 2011 of Hong Kong and estimates street greenery (the green view index) based on Google Street View imagery. It then develops global models (linear regression and Box-Cox transformed models) and local models (geographically weighted regression models) to scrutinize the average (global) and location-specific (local) relationships, respectively, between street greenery and older adults' walking time. Notably, green view indices in three neighborhoods with different sizes are estimated for robustness checks. The results show that (1) street greenery has consistent and significant effects on walking time; (2) the influence of street greenery varies across space-specifically, it is greater in the suburban area; and (3) the performance of different green view indices is highly consistent.

Research Area(s)

  • street greenery, street view imagery, walking time, walking behavior, population aging, older adult, mobility, built environment, spatial heterogeneity, geographically weighted model, BUILT ENVIRONMENT, PHYSICAL-ACTIVITY, TRAVEL BEHAVIOR, ACTIVE TRAVEL, VIEW IMAGERY, ACCESSIBILITY, TRANSPORTATION, ANALYTICS, LOCATION, MOBILITY

Citation Format(s)

Spatially Varying Effects of Street Greenery on Walking Time of Older Adults. / Yang, Linchuan; Liu, Jixiang; Liang, Yuan; Lu, Yi; Yang, Hongtai.

In: ISPRS International Journal of Geo-Information, Vol. 10, No. 9, 596, 09.2021.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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