Taking Beijing City as the study object,the influence which is caused by the secondary environment of city railway for the ecological compositions and some environment factors is analyszed.

It analyzes the positive impact of the construction of city railway in Beijing on its city planning and China s city railway development,and introduces a new means of city transportation.

Research purposes: This paper analyzes the passenger transportation demand of Mianyang-Chengdu-Leshan corridor and discusses the connection mode of intercity railway with other traffic modes.

Research purposes: This paper discusses several questions,such as new station location plans selecting,station pattern confirming,yard equipment arranging and integrated transport junction planning of station area which brought by intercity railway when it joins into huge cities and needs to build new passenger station.

In order to deal with the situation that lots of incomplete samples in sharing ratio estimate information render difficulty in parameter equation solution,using improved information diffusion method to estimate the sharing ratio of intercity railway passenger flow is proposed.

This paper describes line characteristic of urban railway with mathematics methods, with the same interval time of train running as target function to make mathematics model of urban railway.

On the basis of analyzing PPP mode’s characteristics, application field and operational idea, the paper analyses further the subway project financing status, as well as to point that PPP mode is an effective way of working out subway project financing plight.

Application of cubic exponential smoothing method to city underground deformation prediction;

The city underground as the modern vehicle is the important symbol and window of city modernization.