全国一公里分辨率就医出行时间与医院可达性数据集(2020年)
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全国一公里分辨率就医出行时间与医院可达性数据集(2020年),使用Contraction Hierarchies图搜索算法和高斯两步移动搜索法(Gaussian 2SFCA, Ga2SFCA),分别生成了全国1Km人口网格前往最近各级医院(三级医院/二级医院/基层医院)的路网出行时间和以床位人口比衡量的Ga2SFCA医院可达性数据集,并通过空间聚合生成多套多尺度(县级/市级/省级)、多格式(GeoTIFF / Shapefile / CSV)数据产品。
National 1-kilometer Resolution Healthcare Travel Time and Hospital Accessibility Dataset (2020) was developed using the Contraction Hierarchies graph search algorithm and the Gaussian Two-Step Floating Catchment Area method (Gaussian 2SFCA, Ga2SFCA). Two core datasets were generated for the national 1km population grid: the road network travel time from each grid to the nearest hospitals at three tiers (tertiary hospitals, secondary hospitals, and primary care hospitals), and the Ga2SFCA-based hospital accessibility measured by the bed-to-population ratio. Moreover, multiple sets of multi-scale (county-level, municipal-level, provincial-level) and multi-format (GeoTIFF, Shapefile, CSV) data products were produced via spatial aggregation.




