Study On Train Routing Of Urban Rail Transit

With the accelerating urbanization in China, urban transportation problem has been increasingly prominent. As a transportation way of large-capacity, quick speed and highly on time, urban rail transit gradually becomes the basic way to solve congestion question, which also is the key construction in large cities. With this accelerating construction, network line is gradually formed, from a single line to some complex crisscross network lines, which is surely causing the changes in the way of train operation organization. This paper studies and analyzes the train routing of urban rail transit with network lines and tries to establish a kind of optimization model used to give the optimization of train routing, so this paper makes its theory research in advance of model of train rouing used in the currently urban rail transit.This paper firstly analyzes the basic concept and the characteristics of train routing of urban rail transit, and gets some principles followed in making out the project, and then gives some analysis to the influence factors in different kinds of train routing. Through the study of the train routing from its simple way,we can get the concept, characteristics, types of the train routing with network lines, then simplifying the diagrams of Y type, X type, I type and日type lines of train routing, we can get the influence factors and its node features for different types of train routin, and focuses on the changes under the failure situations of train routing. Based on these chapters of the analysis, this paper gives a kind of optimization model to make out the train routing project, which is also working with the single line first followed with network lines analyzed with the optimization method of train routing with a practical example to inspect the validity of the optimization model. Finally, this paper gives an example to Beijing subway network lines with the introduction of the basic situation and the simplified schemes of Beijing subway lines, get the quality of train routing paln between the network lines and the single line by using the optimized model which is analyzed in theory finally.