Research on the Time Sequence of External Railway Rapid Passage Construction in Sichuan

Research purposes:On basis of existing railway,under-construction railway and proposed railway,this paper analyses the suitability of Sichuan railway transportation capacity and demand to determine the time sequence of external railway rapid passage construction in Sichuan.Research conclusions:In Sichuan railway construction,we should concentrate onto building the external passage first and later building the internal passage.In proposed railway construction,the double line on the Lanzhou-Chongqing railway and Suining-Chongqing railway will be built immediately.In the plan of railway,the sequence of railway construction is in turn the Chengdu-Kunming railway for raising the speed and transportation capacity,Xi'an-Chengdu passenger dedicated line,Chengdu-Lasha railway,Chengdu-Guiyang railway.The four railways mentioned above will be completed and operated in 2018.