Coupled Analysis of Walkability and Heat Risk in Urban Streets under the Context of Climate Change:A Case Study in Hefei City
In the context of climate change,the one-sided emphasis on improving street walkability overlooks the impact of high temperatures on human health.Taking Hefei city as an example,this study evaluated street-level pedestrian heat risk using a"hazard-exposure-vulnerability"risk assessment framework based on walkability index.The results show that the overall walkability in Hefei is good,showing a spatial pattern of"concentrated points,strong internal and weak external",but walkability faces high temperature hazards.The proportion of medium-high heat risk streets in Hefei is low,but the overall resilience is weak,making them susceptible to turning into high heat risk streets with population growth,aging intensification,and the increased extreme temperatures.The street-level pedestrian heat risk in Hefei exhibits a layered distribution,mainly influenced by exposure and vulnerability levels.The impact of warning streets and potential risk streets is more profound than that of friendly streets.
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