With regard to low coverage ratio of urban rail transit, this paper introduces network mark to record the railway layout.

本文针对我国城市轨道交通网络覆盖率低的特点，提出采用网络标识确定轨道交通的空间布局。

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On the basis of the analysis the relationship of land use and transport organizations of the marginal high-speed railway terminal areas, the paper studies the layout principle of road network.

论文在分析边缘型高速铁路枢纽地区与城市关系、客流特征以及土地利用等的基础上，研究枢纽地区路网布设的要求；

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The defining of the rail network scale is the basis of the railway corridor layout optimization, which plays a guiding and controlling role to the railway corridor layout optimization .

铁路网总规模界定是铁路通道布局方案优选的基础，它对铁路通道的布局优化具有控制和引导作用。

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