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| Discussion of Suburban Train Operation by Using Existing Railway |
| WANG Qiao |
| The Third Railway Survey and Design Institute Group Corporation，Tianjin 300251，China |
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Abstract Research purposes:The suburban railway，which connects core city with suburbs or satellite cities，is a short distance and rapid passenger rail transit mode mainly for commuter flow in major city. However, suburban railway construction cost is relatively high. If the existing railway can be used to meet the traffic demand within the city，it will shoot two hawks with one arrow. The paper analyzes the adaptability and feasibility of using existing railway by taking Shijiazhuang as an example，which can be used for reference by following cities that will use existing railway to undertake suburban passenger flow.
Research conclusions:(1)Operating suburban trainon existing railway is one of the main modes of developing suburban railway.(2)Eligible cities should take full account of using existing railway as suburban railway.(3)The research of using existing railway should focus on the analysis of the adaptability of railway capacity，the coordination of railway alignment and urban space layout and the suburban passenger flow direction，the convenience of the passengers，etc. (4)It is feasible to operate suburban train after reconstructing and upgrading existing railway and local railway in Shijiazhuang and it can achieve a“city and railway win-win”situation.(5)The research conclusions can provide references for suburban railway development.
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Received: 18 June 2015
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2015, Vol. 32 
