Urban green space may impact human health through complex pathways and the effect can vary across different travel contexts.Revealing these disparities in health pathways between different travel contexts may provide ...Urban green space may impact human health through complex pathways and the effect can vary across different travel contexts.Revealing these disparities in health pathways between different travel contexts may provide essential and practical suggestions for sustainable developments in urban environments.In this study,we investi gated the impacts of travel contexts on people’s perceptions and evaluations of green space using a cross-sectional dataset collected in Hong Kong,China.Eight hundred participants in 4 representative communities were recruited through stratified sampling,and we identified 2,913 travel events from their two-day activity-travel diaries after rigorous cross-validation with GPS-derived trajectories.We also derived two green space exposure representa tions using fine-grained remote sensing imagery and 8 representative green space exposure indicators.Eighty logistical regression models and mixed-effects models were developed to investigate the associations with con trol of a range of potential uncertainties.Our results indicate solid and consistently positive associations between participants’measured green space exposure and perceived green space,and significant but variable effects of travel purposes,travel modes,and travel time on participants’perceptions and evaluations of green space.Walk ing significantly promotes participants’perceptions and positive evaluations of urban green space,buses are not significantly associated,and metro trains may depress the perception and evaluation.Our results provide solid evidence on how travel contexts may influence people’s perceptions and evaluations of urban green space and,thus,provide essential insights into environmental health studies and sustainable urban planning that consider green space as an important urban environmental setting.展开更多
基金supported by grants from the Hong Kong Research Grants Council(General Research Fund Grants No.14605920,14606922,14603724Collaborative Research Fund Grant No.C4023-20GF+9 种基金Research Matching Grants RMG 8601219,8601242,3110151)a grant from the Research Committee on Research Sustainability of Major Research Grants Council Funding Scheme(Grant No.3133235)of the Chinese University of Hong Kong(CUHK)grant from the 1+1+1 CUHK-CUHK(SZ)-GDSTC Joint Collaboration Fund(Grant No.4760974)grant from the Vice-Chancellor’s One-off Discretionary Fund(Smart and Sustainable Cities:City of Commons)(Grant No.4930787)of CUHKsupport from the Research Grants Council General Research Fund(Grant No.14618324)the Research Committee Direct Grant for Research(Grant No.4052336)the Strategic Partnership Award for Research Collaboration(Grant No.4750474)of the CUHKthe University Development Fund(Grant No.UDF01003932)from CUHK(SZ)grants from the“1+1+1”CUHK-CUHK(SZ)-GDSTC Joint Collaboration Fund(Grants No.2025A0505000083,2025A0505000062)supported by an RGC Postdoctoral Fellowship(Grant No.PDFS2324-4H04).
摘要Urban green space may impact human health through complex pathways and the effect can vary across different travel contexts.Revealing these disparities in health pathways between different travel contexts may provide essential and practical suggestions for sustainable developments in urban environments.In this study,we investi gated the impacts of travel contexts on people’s perceptions and evaluations of green space using a cross-sectional dataset collected in Hong Kong,China.Eight hundred participants in 4 representative communities were recruited through stratified sampling,and we identified 2,913 travel events from their two-day activity-travel diaries after rigorous cross-validation with GPS-derived trajectories.We also derived two green space exposure representa tions using fine-grained remote sensing imagery and 8 representative green space exposure indicators.Eighty logistical regression models and mixed-effects models were developed to investigate the associations with con trol of a range of potential uncertainties.Our results indicate solid and consistently positive associations between participants’measured green space exposure and perceived green space,and significant but variable effects of travel purposes,travel modes,and travel time on participants’perceptions and evaluations of green space.Walk ing significantly promotes participants’perceptions and positive evaluations of urban green space,buses are not significantly associated,and metro trains may depress the perception and evaluation.Our results provide solid evidence on how travel contexts may influence people’s perceptions and evaluations of urban green space and,thus,provide essential insights into environmental health studies and sustainable urban planning that consider green space as an important urban environmental setting.