Urban Economic Contact Based On Transportation Improvement

Accompanying with the development of social economy, the relevance of transportation and economic development has grown in our country. Transportation influence on economic development is more and more strong. In the development of urbanization acceleration stage, Chengdu-Chongqing economic zone play an important role in promoting economic growth in the west. As the linkage of regional economy, transportation becomes the key development and rational organization. Based on urban economic contact with transportation and the basis of theoretical analysis of the relationship, first of all, Analyzes the aggregation effect of transportation, Improving traffic will have a positive effect on economic growth, Transportation investment to GDP and employment have a direct drive efficiency, and have an indirect role in promoting the production department. At the same time, from nature theory, growth pole theory, Point of a shaft system theory, the core theory of edge, gather a diffusion theory, the article analyses the economic links between cities based on the traffic. Next, the article analyzes the current development of Chengdu-Chongqing economic zone, policy changes, transportation changes, and selected the 9 level city cities’ population and GDP and the shortest distance transportation in the Chengdu-Chongqing economic zone and other related data to construct the gravity model, to explain the role of the traffic in the urban economic ties. Measure of Chengdu-Chongqing economic links among the cities, and divide the center city, and then concludes that urban economic ties and economic membership degree. Then to Chengdu-Chongqing emu as a case, to establish the empirical model of traffic improvement and economic ties, And contrast analysis Chongqing train operation before and after,The economic contact strength between Suining, Tongnan and Hechuan with chengdu economic. Come to the conclusion that the improvement of transportation condition of economic ties between the two cities has an important influence. Good transportation layout can enhance attraction intensity between cities, and large capacity, energy saving, Safe mode of transportation to further shorten the travel time between the two cities, strengthen economic ties between the city having an important effect. Rail transit for strengthening economic ties between the two cities has a very important role. Finally, the article put forward to improve the transportation condition is the most effective way to strengthen the urban economic ties. the article put forward to speed up infrastructure construction, optimizing the structure of the transportation, to strengthen transportation management of specific measures to development Chengdu-Chongqing economic zone economic ties, These measures for promoting the development of Chengdu-Chongqing economic have a certain theoretical and practical significance.