Study On Calculation Method For Section Through Capacity Of Railway Passenger Dedicated Line

In our country, railway is the main artery of our national economic, and also the main force of general traffic system. But now, in our country, railway is the choke point of the economic development. Difficult ride and difficult freight, these "two difficult" has becomes a rather serious society problem. In order to turnaround this passive situation, form passenger transport channels of better transportation capacity, and increase the velocity of carriage and truck, we must build railway passenger dedicated lines in large scale.According to the programming of railway build in mid-long term, before 2020 we will build 12 thousand kilo-meters Passenger dedicated line. But the situation of our country decided that at the beginning use of the Passenger dedicated line, we should adopt multi-velocity carriages run in the same line. And in this transportation styles, the export pay more attentions to the issues of how to calculate the through capacity of Passenger dedicated line.The purpose of this article is to find a new calculate method to calculate the section through capacity of Passenger dedicated line, in the transportation style of multi-speed train runs in the same line. Combines the real situation of our country's railway, and consult the export's research all over the world, analyze the frame of run chart, which is the main factor affect the section through capacity, think up a new method to calculate the section through capacity-direct calculation method. I also build a mathematic mode to describe the method exactly. And by using this direct calculation method, I calculate and analyze the passing capacity of one Passenger dedicated line's section. And the example proves that this new method is usable.