Data underlying the publication: Accessibility analysis of Public Service Facilities in the Renewal of Ciqikou Historical Block: GIS kernel density and service area analysis method are adopted

This study uses the methods of kernel density analysis and service area analysis in GIS to quantify the accessibility of public service facilities for residents within 15-minute living circles. This study takes the Ciqikou block as an example to analyze the distribution of public facilities and the polarization of services in historical blocks, quantifies and evaluates the accessibility of public facilities and the influencing factors of accessibility for residents' walking, and makes an assessment contribution to the sustainable renewal of social transportation and the maintenance of social equity in historical blocks in the later stage, with the aim of providing a useful reference for sustainable urban renewal.

本研究采用地理信息系统（Geographic Information System, GIS）中的核密度分析（Kernel Density Analysis）与服务区分析（Service Area Analysis）方法，量化评估15分钟生活圈范围内居民的公共服务设施可达性。本研究以磁器口街区为研究案例，剖析历史街区内公共设施的分布特征与服务极化现象，量化并评估居民步行出行下的公共设施可达性及其影响因素，为历史街区后期社会交通的可持续更新与社会公平维护提供评估依据，旨在为城市可持续更新提供有益参考。