Analysis On High-Speed Railway Carrying Capacity And Its Influencing Factors Based On Compressed Diagram

Qinhuangdao-Shenyang High-Speed Railway,the first passenger dedicated line in China,was open to traffic in 2003.Since then,there are already 38 high-speed railway circuits opened in our country,including the inter-city railway and the passenger dedicated line.In the peak of high-speed railway planning and construction,the lines gradually connected into a network.To meet the needs of the passenger flowand train operation,the Class B trains run on high-speed lines will be a must.Therefore,it is of great significance to optimize the mixture of Class A&B trains operation in high-medium speed.With the support from the national open fund,this thesis has studied the impact of three factors on the capacity of the mixture of Class A&B trains operation,including the proportion of the Class B trains,the stop proportion of them and the speed difference.Firstly,combined with the high-speed railway transport organization at home and abroad,this thesis analyzed and discussed the suitable transport organization mode of high-speed railway in our country.Then,this thesis expounded on the features and influencing factors of carrying capacity of high-speed railway,and the calculation methods as well,so that this thesis adopted suitable method and proposed "carrying capacity calculation model based on compressed schedule".Secondly,aimed at the up sector between Shanghai Hong-qiao Railway Station and Nanjing South Railway Station,this thesis simulated the train diagrams under different proportion and stop proportion of the medium-speed trains.With customizable sectors,this thesis simulated train diagrams under various speed differences,and calculated the carrying capacity of them with "carrying capacity calculation model based on compressed schedule".Finally,under the mixture of Class A&B trains operation,this thesis analyzed the impact of three factors on carrying capacity with theoretical analysis and SPSS software analysis,including the proportion of the Class B trains,the stop proportion of them and the speed difference.And then with analysis results,this thesis proposes some measures to improve carrying capacity under the mixture of Class A&B trains operation.