高铁网络与城市关联的时空演化与相关性分析

Spatial Evolution Characteristics and Correlation Analysis of the Linkage between High Speed Rail Networks and City Clusters

文章从网络视角出发,构建高铁网络以及长江三角洲和长江中游城市群引力网络,对网络演化特性进行分析,探讨高铁网络与城市群引力网络的相关性并研究高铁网络与城市关联发展的相互作用关系。研究发现:高铁网络整体密度较低但具有小世界性,网络节点间的沟通效率较高;高铁的建设增加了第一位城市和高等级城市在网络中的地位,导致高等级城市更加集聚;随着时间变化,高铁网络的密度和聚类系数降低,各城市节点在网络中的重要性不断变化。上海、苏州及其周边区域成为长江三角洲地区的引力中心;长江中游地区逐渐形成以武汉为核心和以长沙为核心的城市群。对高铁网络与城市群引力网络的QAP分析结果显示,两者之间存在显著的正相关性。

and the middle reaches of the Yangtze River are constructed to analyze the evolutionary characteristics,explore the correla. tion,and study the interaction between high-speed rail networks and urban networks. The study finds that the high-speed rail networks have low overall density but are small-world networks,and the communication efficiency among network nodes is high. The construction of high-speed railways has increased the status of the first city and high-ranking cities in the networks. With the change of time,the density and the clustering coefficient of high-speed rail networks are reduced,and the importance of each city node in the networks is constantly changing. Shanghai,Suzhou,and their surrounding areas have become the cen. ter of gravity in the Yangtze River Delta region;The middle reaches of the Yangtze River have gradually formed an urban clus. ter with Wuhan as the core and Changsha as the core. QAP analysis shows a significant positive correlation between the highspeed rail networks and urban networks.