Accessibility-based spatial allocation of public service facilities in Lanzhou New Area
Accurately evaluating the accessibility of public service facilities is the basis and premise to measure the rationality of its allocation,and it is also an important way to promote the equalization of public service facilities.Taking Lanzhou New Area as an example,based on the POI data of public service facilities,using Ripley's K function,ArcGIS network analysis,exploratory spatial data analysis and other methods,the spatial configuration of public service facilities was analyzed from the perspective of accessibility.The results revealed that:1)The spatial distribution of public service facilities is significantly unbalanced,showing the overall spatial characteristics of"core-edge".The urban center is the key area where many public service facilities are distributed,while in urban-rural integration areas,there are relatively few public service facilities sparsely distributed there.Among them,the spatial agglomeration degree of operational facilities is higher than that of public welfare facilities.2)The accessibility of public service facilities presents typical circle structural characteristics,showing a differentiation law of circle layer-type decreasing from the center to the periphery.The central area is the"high-high"agglomeration area,and the periphery is the"low-low"agglomeration area.3)The matching between the accessibility of public service facilities and population density is uneven,with only 10.46％of regions in a supply-demand balance state of"double high"or"double low".There are varying degrees of supply shortages and supply leading problems in peripheral and suburban areas.4)The spatial characteristics of the accessibility of public service facilities are jointly affected by various factors,such as natural history,economic development,social needs,policy planning.
public service facilitiesaccessibilityspatial characteristicsinfluencing factorsLanzhou New Area
万方数据
维普
