Study On The Evolution And Coordination Of Economic Structure Between Intercity Railway And Urban Agglomeration

After the opening of intercity railway,its guiding role in the reconstruction of regional economic spatial network of its urban agglomeration has always been concerned by academic circles,at present,the main research method is to build gravity model or coupling analysis model,but the simple geographical distance can not well express the distance factor in the gravity model and coupling analysis model,and can not clearly describe the reconstruction results of regional economic spatial network of urban agglomeration after the opening of intercity railway.Taking Chengdu Chongqing urban agglomeration as an example,this paper analyzes the impact of accessibility,economic connection intensity and spatial reconstruction of Chengdu Mianyang Leshan Intercity Railway on the regional economy of Chengdu Chongqing urban agglomeration.Using the DPSIR model,this paper puts forward the index system of regional economic structure rationality,in addition to the basic traffic and economic indicators,the selected indicators also include residential investment,the number of patent applications and local science expenditure.After adding the index,the correlation R2 of correlation analysis reached0.71,which was 10.2% higher than that of the model without adding the index.Based on this,the model of intercity railway regional economic development is constructed,this paper focuses on the change law of the reconstruction of regional economic spatial network of Chengdu Chongqing urban agglomeration after the opening of Chengdu Mianyang Leshan intercity railway,then Apache Ecarts software is used to visualize the change process of spatial network,and some policy suggestions are put forward to promote the regional economic development by using Chengdu Mianyang Leshan intercity railway.