Analysis of structural evolution and its influencing factors of the high-speed railway network in China's three urban agglomerations

《Analysis of structural evolution and its influencing factors of the high-speed railway network in China's three urban agglomerations》

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关键字: HSR network;Structural evolution;Influencing factors;Linear mixed model;Three urban agglomerations

作者单位: College of Applied Arts and Science, Beijing Union University, Beijing 100191, China;State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China;College of Applied Arts and Science, Beijing Union University, Beijing 100191, China;State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China;State Key Laboratory of Tibetan Plateau Earth System, Resources and Environment, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China

摘要: Development of HSR network has an important impact on the evolution of urban spatial structure. However, quantitative discussions on influencing factors of HSR network evolution are still lack. This study explores the structural evolution and influencing factors of HSR network consisting of three urban agglomerations. The main results are as follows: (1) The HSR network in Beijing-Tianjin-Hebei (BTH) had maintained a stable twin-city structure, while Yangtze River Delta (YRD) and Pearl River Delta (PRD) presented a balanced and polarized structure respectively. (2) The community structure of HSR network in BTH and YRD had become complex and diversified, while that in PRD was simple and stable. (3) The overall level of HSR connections in PRD has grown at the first and that in BTH has dropped at the bottom in 2019.The overall level of connectivity of HSR network in PRD continued to rise, and it continued to decline in YRD. That in PRD has significant small-world feature. (4) The interaction intensity of tourism, income, technology, and investment of cities significantly affects HSR network structure. This article helps to adjust HSR network structure from the demand of residents' travel between cities, and optimize the service supply of inter-city high-speed travel.