基于城际铁路的城市群空间网络重构——以沪宁、沪杭走廊为例  

The Spatial Network Reconstruction of Mega-region Based on Intercity High-Speed-Rail—— The Case Study of Hu-Ning and Hu-Hang Corridor

作　　者：刘冰[1] 许劼 张伊娜[3] LIU Bing;XU Jie;ZHANG Yina

机构地区：[1]同济大学建筑与城市规划学院,高密度人居环境生态与节能教育部重点实验室 [2]上海城建职业学院 [3]复旦大学社会发展与公共政策学院

出　　处：《城市规划学刊》2020年第2期40-48,共9页Urban Planning Forum

基　　金：上海市哲学社会科学规划课题“城铁双融——上海依托城际高速铁路带领长三角一体化的空间政策研究”(项目编号2019BCK007)。

摘　　要：高度一体化、各级城市协调发展的城市群是城市化的主体形态,城市群的建设和发展是新型城镇化时期重要的国家战略。基于“流空间”和“中心流”理论,以长三角城市群的沪宁、沪杭走廊地区为实证案例,揭示城际铁路对区域极化—均衡发展及其对城市群空间结构重塑的作用。以县级市(区)为基本分析单元,重点考察城际铁路沿线这类二级节点与区域核心节点、一级城区节点之间的空间网络关系。对比城际铁路开通初时和开通数年后各节点之间的空间网络变化,结果显示城际铁路沿线地区形成了“水平嵌套+垂直极化”的复合网络模式,表明城际铁路在总体上促进了城市群的空间网络扁平化,尤其是沪宁走廊上海一常州区段的多中心水平联系增强;而沪杭走廊的网络均衡效应较不显著。最后,提出了基于城际铁路的城市群多尺度交通整合和空间网络优化建议。Mega-region in which cities of all levels develop coordinately and integratedly has become the dominant form of urbanization.It is a national strategy in the era of new-type urbanization in China.Based on the theory of"space of flows"and"central flow"and empirical data of Hu-Ning and Hu-Hang Corridors in the Yangtze Delta Region,this research sheds light on the effect of C-HSR on the reorganization of the regional city network.Taking county as the basic unit,the relationship between second-level nodes and other ones such as first-level nodes and core nodes is analyzed.The change of spatial network based on passenger flows both in the year of C-HSR opening and thereafter is contrasted.The current spatial network of the intercity rail corridors shows a hybrid pattern of both balance and polarization.It is demonstrated that C-HSR is conducive to balanced spatial network,especially in the Shanghai-Changzhou segment of the Hu-Ning corridor,where inter-city connections of second-level nodes with other nodes in different administrative areas and nodes of different levels increase markedly;nevertheless,the balanced effect is weak in the Hu-Hang corridor.Suggestions of transport integration and spatial optimization at multi-scales are proposed based on the above findings.

关 键 词：城际铁路 城市群 空间网络 沪宁走廊 沪杭走廊 

分 类 号：TU984[建筑科学—城市规划与设计]