以高铁运行审视“哈长沈大”城市带发展

以高速铁路为载体的城市群联动效应正在改变区域发展空间格局.然而,对那些想以高铁建设来实现发展梦的城市,究竟能否如愿还需实践证明.文章以“哈大高铁”沿线城市为考察对象,利用“去哪儿”网客运列车预定系统抽取城市铁路关联信息,构建东北狭长城市带发展的三重差分评价模型.结果发现:哈大高铁缩短了城市间的时空距离,大城市间的关联度相较之更为明显;城市铁路吸附能力强弱分层明显,提早开通高铁的大城市能够借助“吸附效应”获得短期增长,使经济带沿“哈大高铁”呈现“极化轴”特征.通过识别东北城市铁路可达能力为高铁所改变的过程中其对城市经济发展的影响,审视以轴线城市为重心的东北城市带发展态势对周边中小城市可能形成的未来发展约束.

Railway accessibility capacity and urban development in northeast China

The connected effect of cities based on high-speed rail (HSR) is changing the spatial patterns of regional development.However, it needs to be proved through practice whether development can be achieved by building HSR.This paper focuses on cities along the "Harbin-Dalian" railway, and built triple difference evaluation model, associating information extracted from the train schedule provided by Qunar.com.Results indicate:the HSR greatly accelerates the connected effect between large cities; large cities exhibit accessibility effect on the surrounding cities due to the asymmetry of the HSR accessibility capacity, showing "polarization axis" characterization along the Ha-Da HSR.This work reviews the developing trend of the northeast urban belt, explains the influences on the cities from the HSR operations based on the examination of the HSR accessibility effect and the city connecting effect, and looks at the impact of the accessibility effect on the developing trend of the cities equipped with HSR.