The struggle for the title of the Jilin-Changchun Railway is not only a problem of important influence in modern Northeast Chinese history but also one classic case in the campaign of maintaining the railway right in modern Chinese age.

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.

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.

Based on analyzing the progress trend and feature of China’s urbanization and analyzing the current development of China’s three major economic zones, the necessity of developing intercity railroad within three economic zones is proposed.

Based on analyzing the concepts of intercity railroad, two development patterns of intercity railroad are proposed: the pattern of passenger special line in crossing economic zone and the patterns of mass transit type intercity railroad within developed economic zone.

This paper puts forward a fuzzy mathematics method of information diffusion to estimate the distributing rates of the intercity railroad passenger flows.