城际铁路对长三角旅游城市可达性格局的影响

Impact of Changjiang River Delta Intercity Railway on Accessibility of Tourism City System

城际铁路发展可大幅度缩短城市之间的时间距离,改变区域旅游城市网络的可达性格局,促进旅游同城化和区域旅游一体化。利用分形网络空间关联维数,测算比较了欧氏空间距离、铁路里程距离和铁路时间距离三种连接网络状态下长三角旅游城市的可达性格局变化特征,发现旅游城市系统空间关联分形发育显著;长三角旅游城市可达性呈现出北高南低的差异性,成因与行政区划阻隔、自然地带性发育均有关联。从构建无障碍一体化旅游区域出发提出了发展建议。

The development of intercity railway could shorten the time distance greatly, and then changed the accessibility of tourism city system. This paper applied spatial correlation fractal dimension to study the accessibility changes of tourism city system under the Euclidean distance network, rail mileage network, and railway time distance network respectively. The research findings were as follows ： The spatial correlation networks of tourism city system had good fractal characteristics, and the northern subsystem of Changjiang River Delta cities had an better accessibility than the southern subsystem, the reasons for which may he caused by administrative division, geomorphology and natural environment. Lastly, some approaches for inter- city railway and tourism city system development were quested.