基于百度迁徙数据的山东省城市网络结构特征研究

Research on uban network structure characteristics in Shandong Province based on Baidu migration data

已有研究侧重于城市点要素和面要素的测度,少有对线要素和要素空间作用状态的研究。因此,基于百度迁徙数据,本文采用社会网络分析法和空间自相关分析法,对山东省城市网络进行“点”“线”“面”空间结构特征分析和相互作用状态分析。结果表明:山东省城市网络在整体上呈弱联系状态,省会经济圈、胶东经济圈和鲁南经济圈内部网络分别呈现单核心“放射状”“一点一线型”和“折线型”的结构特征;网络中出现小团体聚集特征,城市聚类的空间近邻效应显著,团体内部联系的密集度高于外部;城市的节点属性差异较大,导致网络的核心–边缘结构明显,并且在局部地区表现出空间负相关特征。

Previous research has focused on the measurement urban point and area elements,with limited attention given to the spatial interaction status involving linear and element elements.Therefore,based on Baidu’s migration data,this article uses social network analysis and spatial autocorrelation analysis to analyze the spatial structure characteristics and interaction status of the urban network in Shandong Province.The results show that the overall urban network of the province exhibits a weak connection,and the internal networks of the provincial capital economic circle,Jiaodong economic circle and Lunan economic circle present the structural characteristics of single core“radial lines”,“one point and one line”,and“broken line”,respectively.Within the network,there are characteristics of small group aggregation,highlighting the significant spatial nearest neighbor effect in urban clustering.The density of connections within groups is higher than that of the outside.The node attributes of cities are quite different,which lead to an obvious core edge structure within the network,and show the characteristics of spatial negative correlation in local areas.