Spatial heterogeneity of driving factors for urban heat health risk in Chongqing, China: A new identification method and proposal of planning response framework

•The new method was used to analysis the spatial heterogeneity of driving factors for urban heat health risk.•Driving factors for urban heat health risk exhibited a high level of heterogeneity.•Relying solely on the driving factors obtained from traditional methods to develop cooling measures was unreasonable.•Novel framework connecting heat health risks, driving factors, and response policies was proposed.