Analysis of the Economic Links among the Districts and Cities in Jiangxi Based on the Traffic Accessibility

A traffic accessibility index model for the cities in Jiangxi Province,each of which has jurisdiction over several districts,is established by using the shortest time distance.On that basis the gravity model is revised.Then the modified gravity model is used to analyze the economic links among the cities.The results show that:The total amount of economic links among the cities is directly related to their traffic accessibilities.Nanchang has the best traffic accessibility,followed by the north and west areas,and then the south,middle and northeast areas of the province.The economic relations among the cities have obviously orientation toward the center cities and toward the adjacent regions.In this paper the main strategic measures to strengthen the economic links among the cities are put forward:to speed up the construction of the transportation infrastructure,so as to form Nanchang-Ganzhou-Jiujiang multinuclear development pattern,which consists of a vertical main development axis and a horizontal main development axis,and three vertical and three horizontal auxiliary development axes.The implement of the development pattern would give full play to the regional advantages,realizing their complementarity,and expanding the scale of the population of the cities and the total economic amount of the province.