中文摘要：

利用最短时间距离建立城市间的交通通达性指数模型，在此基础上对引力模型进行修正，利用修正后的引力模型对江西省各设区市的经济联系进行分析。研究结果表明：各地市经济联系总量与交通通达性有直接关联，南昌最好；其次为赣北及赣西地区；而赣南、赣中及赣东北较小；各设区市之间的经济联系有明显的中心城市指向和地域相邻指向。基于上述结论提出了加强各设区市经济联系的主要战略措施：加快交通基础设施的建设，形成“南昌一赣州一九江”多核发展模式、“一纵一横”发展主轴和“三纵三横”发展辅轴的空间格局；发挥地区优势，实现优势互补；扩大人口规模，做大经济总量等。

英文摘要：

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.