The feasibility and the shortcomings of the round-the-city railway planning in Chongqing,and some viewpoints about the railway planning are put forward.

For example, the connection of the existing railways with the urban ring lines will form the round-the-city railway and make the railway connect with air routes, roads and ports for the network and open to traffic the inter-city fast trains.

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.

The features of the passenger flow,the transportation tasks and the service level of the inter-city railway all differ from those of the existing railway lines.

The realistic and great significance for making great efforts to develop the suburban railway and making planning for and building as early as possible the inter-city railways of provinces and autonomous regions is put forward.

With the rapid development of urbanization in China, it is imperative to build inter-city railway between cities.

Research methods:Combining with the regional economy and the transport features of the intercity rail,this paper(compared) and analyzed the economy and adaptability of the target value of different speeds adopted.