Preferential development of urban public transportation system is a universally accepted approach of solving urban traffic problem.

优先发展城市公共交通系统是解决大、中城市交通问题的最佳途径。

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Through the analysis of the urban public transportation system, a new theoretical model based on GIS isochrone approach is put forward and a design prototype is described with an isochrone analysis.

提出了基于GIS等时线分析方法的理论模型，以城市公共交通运输系统的主要工具——公共汽车和城市火车为例，描述了等时线分析的设计原型。

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Transfer hub is an important component of urban transportation system and the key to the integration of urban public transit.

公交换乘枢纽是城市客运交通系统重要的组成部分，也是城市客运交通整体化的关键。

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