Research on the Integration of Railway Planning and Urban Planning

The rapid development of China´s economy directly promotes the development of the city, as the city is growing, people´s travel distance is also correspondingly longer, so it need to use a certain means of transport, which is responsible for the inter city rail transportation. The Cheng Yu intercity railway network as the research object, first of all to Chongqing last year GDP, population and traffic with binary linear regression analysis, passenger traffic volume on the GDP and population relationship can be obtained and forecast future passenger traffic. And then through the gray prediction (GM1.1) model to predict the proportion of railway transportation in previous years, the proportion of future railway can be obtained, and then get the railway passenger traffic volume.