三大城市群的高速铁路网络特征对比分析基于复杂网络视角

Comparative Analysis on Characteristics of High- speed Railway Network by Three Major Urban Agglomerations in China Based on Complex Networks Theory

高速铁路正逐渐成为城市间联系的重要方式,我国的高速铁路也逐步由线路发展成网络。以长江三角洲、珠江三角洲、京津冀三大城市群为例,运用复杂网络理论构建高速铁路物理网络和出行网络,计算网络的平均度、集聚系数、平均最短路径、中心性、网络密度等指标。对比分析结果表明:三大城市群的高铁物理网络密度均较小,出行网络密度大,高铁出行网络呈现一定的小世界性;京津冀和珠三角城市群的物理网络和出行网络节点中心化程度差异较大,而长三角的高铁网络结构则较为均衡。城市群高速铁路网络的深入研究方法和结果对其他区域的铁路建设和管理具有一定的参考意义,同时也促进了对城市群交通网络的深入研究。

High- speed railway was gradually becoming an important way to link the cities,China＇ s high- speed railway was also developed from a line to a network. Taking the three major urban agglomerations in China,Changjiang River Delta,the Pearl River Delta,Beijing,Tianjin and Hebei for example,the high- speed railway physical network and travel network were built based on complex networks theory. Some structure analysis indexes,average degree,clustering coefficient,average shortest path,centrality,network density were computed in this paper.The results showed that the high- speed rail physical networks＇ density were smaller while the travel networks＇ density were bigger,the high-speed rail travel network obtained small world features. Beijing,Tianjin,Hebei and the Pearl River Delta high- speed rail network had network centralization features obviously,the travel network structure of Changjiang River Delta was more balanced. The research methods and results of high- speed railway network in urban agglomeration had certain reference significance for other regions of railway construction and management,and it also promoted the research of urban traffic network.