武汉市地铁可达性与餐饮网点的空间耦合性研究

基于地铁网络构建OD矩阵,定量化计算地铁可达性,并在此基础上分别展开地铁可达性以及餐饮网点空间分布的核密度分析,最后运用Geo Da空间计量工具对二者核密度分布做空间上的关联性分析,以此揭示地铁可达性与微博餐饮签到网点各自的空间分布规律及二者的耦合性特征。研究得出:地铁可达性各指标的核密度分布规律存在相似性,均呈现出"核心-边缘"的空间结构特征;餐饮网点核密度分布趋向于"一个核心、多个中心"的多中心、多层次空间格局;地铁可达性各指标与微博签到网点整体上存在着不同程度的空间正相关,并在局部范围内呈现出高-高集聚、低-低集聚、高-低集聚、低-高集聚4种不同类型的空间关联模式。

Space Coupling Research on Accessibility of Subway with Catering Services Spot in Wuhan

The paper firstly calculated the subway accessibility quantitatively based on the subway network by building the traffic net-work, then analysis the kernel density distribution pattern of catering services spot and accessibility of subway based on the above re-sults. Finally the spatial correlation properties between the accessibility of subway and catering services spot is revealed by GeoDa tools based on the results of the kernel density distribution model both of them above. The results showed that the kernel density distribution model of both of the index of the subway accessibility presents a similar spatial structure features of "core-edge" while the catering services spot of which tend to be multicenter and multilevel of "one core, more centers" space landscape. Both of the index of the subway accessibility presents different degrees of positive correlation with catering services spot on the whole and four different cluste-ring model of "H-H, L-L, H-L, L-H cluster".