A Comparative Study Of Highway Accessibility And Regional Economic Coupling Coordination Degree Of Urban Agglomerations In Northwest China

As the basic industry of the national economy,transportation industry is an important support and guarantee for the development of various economic and social undertakings.By improving the capacity and efficiency of regional transportation and improving the working efficiency,the spatial form and pattern of the distribution and distribution of the productive forces are changed,and the rational allocation and high level of various resources within and outside the region are guided and high.Effective utilization will further promote regional economic development,industrial layout,urban construction and population distribution in a certain region.The development of transportation industry is generally manifested as the optimization of the regional accessibility level and access time with the improvement of transport infrastructure construction level.The coupling coordination degree is a measure of the mutual influence degree between the system or the elements,in which the accessibility represents the transportation system.The comprehensive development level of the city is evaluated as the economic and social system.Through the coupling of the two systems,it can be seen whether the economic and social development will contribute to the development of the traffic,and whether the traffic development is in the area or not.Development provides sufficient basic support.Based on the national strategy and western development policy of the four urban groups in the northwest of China adapting to the construction of the land Silk Road Economic Zone under the new situation,four important development nodes in the West and north areas of China are selected and the key development nodes are in the Guanzhong plain city group,the city group along the Yellow City in Ningxia,the lanbai Xicheng city group and the northern slope of the Tianshan Mountains.As the research object,the urban agglomeration area of sexual influence is used to study the effect and influence of the traffic accessibility level on the regional economic development by the perspective and method of economic geography,traffic geography and regional economics,and discuss the correlation level and internal coupling relationship between transportation and regional economic development.And the interaction mechanism,study the adaptability of urban traffic infrastructure construction and economic and social development level in different cities,and use the CO Coupling Model to determine the quantitative relationship between them,and further summarize the general rules of transportation to the regional economic development;explore the development of transportation and transportation.The coupling interaction relationship with the economic development of the urban agglomeration in Northwest China.The conclusions mainly consist of two aspects: first,there are significant differences in the accessibility of road traffic and the spatial distribution structure of the four urban groups,and the urban agglomeration along the Yellow City Group and the Guanzhong Plain in Ningxia is better than the lanbai west city group and the north slope of the Tianshan city group.Radiate diffusion structure model.Second,on the level of regional economic relations,the spatial distribution of coupling coordination degree is extremely uneven,the urban and regional marginal cities in the central region have a great difference,and the coupling coordination type and the horizontal distribution are uneven and the high level cities are less.Third,the difference of urban agglomeration in the development of the coupling coordination degree is larger and the difference is larger in the cities of different urban groups and The overall level is not high.The interaction relationship between traffic accessibility and economic and social development is characterized by low construction level of traffic infrastructure,urgent improvement of highway network construction,large difference in development of urban agglomeration,and prominent characteristics of urban node development.In the process of seeking a high level coupling relationship between traffic accessibility and economic and social development and guiding its orderly development and mutual promotion,the choice of transportation development strategy should be different in different attributes cities,such as regional development core cities,sub central cities,traffic or resource cities.