Research Of Economic Linkage And Industry Coordinated Development Of Beijing-Tianjin-Hebei Urban Agglomeration From The Perspective Of Interurban Traffic

Under the background that the coordinated development of Beijing-Tianjin-Hebei has become a national strategy.It has great practical significance to study the economic ties and industrial coordinated development of Beijing-Tianjin-Hebei urban agglomeration from the perspective of interurban transportation.From the perspective of interurban transportation,it is of theoretical significance to explore the laws of transportation accessibility,economic ties,spatial hinterland relations,industrial agglomeration,and the system coupling and‘transportation-industry-urban scale’ collaborative evolution of urban agglomeration system.The spatial gravity model that conforms to the urban connection is revises and constructed in this paper.It has certain academic significance to introduce the‘traffic accessibility efficiency’ as a new order parameter into the‘transportation-industry-urban scale’ system and build the ‘coupling coordination model’ model.Aiming at the diversity of the complex system of urban agglomeration.The research method of combining literature research and empirical analysis is adopted in this paper.On the basis of studying different research documents,the mechanism of the coordinated operation of the transportation,industry and urban scale of the urban agglomeration system is analyzed in this paper.The empirical analysis method which is including the method of superior and inferior solution distance,modified gravity model,accessibility analysis,spatial correlation analysis,spatial difference analysis,and coupling coordination analysis system evolution,is adopted in this paper.Based on the analysis of Beijing-Tianjin-Hebei urban,industrial pattern and interurban rapid rail transit,the economic quality of Beijing-Tianjin-Hebei urban is measured by using the method of superior inferior solution distance,and it is found that the hierarchical structure of Beijing-Tianjin-Hebei urban agglomeration is not reasonable.Using the modified gravity model to study the economic relationship,spatial subordination and hinterland relationship between Beijing-Tianjin-Hebei urbans,it is found that the opening of interurban rapid rail transit has made a high contribution to improving the strength of economic ties between urbans.The spatial subordination and hinterland relationship tend to be compact,which improves the time efficiency of interurban traffic accessibility.Using Moran index and spatial correlation to analyze the population aggregation and industrial aggregation of Beijing-Tianjin-Hebei urban agglomeration,it is found that the population spatial aggregation is higher than the industrial spatial aggregation.Using spatial Gini coefficient to analyze the spatial differences of specific industries,it is found that the spatial differences of different industries in different urbans are very large.Using the coupling coordination degree model to analyze the co evolution of ‘transportationindustry-urban scale’,it is found that in the transportation subsystem,the weight of the inter urban traffic accessibility efficiency is increasing,and the weight of the total passenger volume is significant.In the industrial subsystem,the weight of the number of employees in the secondary and tertiary industries has increased significantly.In the urban scale subsystem,the weight of urban economic growth and built—up area is large and slightly increased.In terms of system coupling and coordination.Beijing has improved from good coordination to high-quality coordination.Qinhuangdao and Zhangjiakou have been downgraded from moderate to severe imbalance.Chengde has been downgraded from severe to extreme imbalance,and the remaining nine urbans remain unchanged.In terms of coupling,13 urbans are improving.In terms of coordination,only Beijing rose,Tianjin remained the same,and other urbans declined.In terms of coupling coordination,Beijing and Baoding increased,Tianjin and Cangzhou remained unchanged,and the other nine urbans declined.According to the research results,the following conclusions are drawed in this paper: the accessibility efficiency of transportation in Beijing-Tianjin-Hebei is improved after the interurban rapid rail transit opened,the strength of urban economic ties is enhanced,and the spatial subordination and hinterland relationship are compact.At the same time,different urban industries and populations are clustered,coordinated and developed differently.The Agglomeration capacity of core urban Beijing has been improved,and most secondary urban resource elements have been siphoned,and the coordination degree has become weak.Therefore,it is suggested in this paper that the rapid and efficient rail transit in BeijingTianjin-Hebei should be promoted to develop into ‘networking’ and ‘integration’,and the economic ties between urban agglomerations should be strengthened.Form a multi modality innovative industrial chain pattern along the transportation development axis.The scale of urbans in Hebei should be expand to enhance the ability to undertake industries.The coordination of marginal urbans should be improved to promote the coordinated evolution of the Beijing-Tianjin-Hebei urban agglomeration by coupling ’transportation-industry-urban scale’ to promote regional coordinated development.This research has certain innovation.The classical gravity model is revised to study the economic connection strength and spatial subordination.A spatial autocorrelation multi factor matrix is built to study the aggregation of population and industry,a system model of ’transportation-industry-urban scale’ is built which expands the research perspective.The ‘traffic accessibility’ model is revised,The ‘traffic accessibility efficiency’ as a new order parameter is introduced into the’transportation-industry-urban scale’ system.A new ‘coupling co scheduling’ model is built.New countermeasures and suggestions are put forward for the coordinated evolution of the ’transportation-industry-urban scale’ system of the Beijing-Tianjin-Hebei urban agglomeration,which is a major national strategy,and serve as a model for other regions.There are some deficiencies in this paper,such as the lack of research on the impact of many years and multiple factors on the system.It will be researched in the future.