城际铁路的定义和区域空间网络影响类型初探

城际铁路在服务空间、行车速度、站距等方面具有与普通铁路和高速铁路显著不同的特征,它能采用公交化运营模式满足相邻城市间的当日往返出行。因此,城际铁路对区域城市群规模和城镇空间布局的发展产生独特影响。基于城际铁路的区域内部各城镇联系状态,分为中心与边缘、中心与中心、跨越的中心与边缘、边缘与边缘四种类型。以东京、旧金山湾区、长三角、京津为案例说明城际铁路对城市群空间布局的影响结果。研究发现,不同特征的城际铁路线网适用于不同发展阶段和发展条件的城市群,并与城市群空间布局产生相互影响。

Definition and Impact of City Network Classification of Intercity Rail

Intercity rail is different from traditional rail and high-speed rail in service coverage,operation speed and station spacing.Those features offer the capability of operating as public transit and providing commuter services for passengers.Hence,it exerts the influences in the development of metropolitan areas and spatial layout of regional city network. Based on the impacts of intercity rail on different towns, the network can be categorized into four types, namely center-edge, center-center, crossing center-edge, and edge-edge.Cases of Greater Tokyo Area,San Francisco Bay Area,Yangtze Delta,and Beijing-Tianjin Re-gion are selected to illustrate the impacts of intercity rail on spatial layout of metropolitan areas.The re-sults show that different types of intercity rail are suit to different development periods of metropolitan ar-ea,as well as correlating with spatial layout of metropolitan areas.