高速铁路开通对长江三角洲城市群网络空间结构的影响研究

高铁开通提高了区域可达性，促进了要素流动，从而对区域产业发展和空间结构产生了重要影响。长三角城市群作为我国经济最发达、高铁密度最高的地区，研究高铁开通对其空间结构的影响具有重要的理论和实践意义。本文以长三角城市群26个城市为研究对象，通过构建城市间经济联系强度矩阵，运用社会网络分析方法从网络密度、中心性和凝聚子群等方面研究高铁开通其网络空间结构的影响。研究结果表明，高铁开通对长三角城市群网络空间结构起到了一定的整合优化作用，进一步完善高铁网络建设将有助于实现长三角城市群均衡发展。

Study on the Impact of the Opening of High-speed Rail on the Cyberspace Structure of the Yangtze River Delta City Cluster

The opening of high-speed railway has improved the accessibility of the region and promoted the flow of factors, which has an important impact on the regional industrial development and spatial structure. As the most developed economy and the highest density of high-speed railway in China, the Yangtze river delta city cluster has important theoretical and practical significance to study the impact of the opening of high-speed railway on its spatial structure. In this paper, 26 cities in the Yangtze River Delta city group are studied, and the impact of network density, centrality, and coalescence of subgroups on the cyberspace structure of the opening of the high-speed railway is investigated by constructing a matrix of the strength of economic ties between cities and applying social network analysis. The results show that the opening of high-speed railway plays a certain role in the integration and optimization of the network space structure of the Yangtze river delta city clusters, and the further improvement of the high-speed railway network construction will help to realize the balanced development of the Yangtze river delta city clusters.