Evaluation on coordinated development of infrastructure andurban-rural integration of coal resource based city

The coordination between bearing capacity of infrastructure and the demand pressure caused by the development of urban-rural integration is the significant precondition for the sustainable development of urban-rural integration of coal resource based city.The evaluation indictors and the evaluation model of coordinated development degree between infrastructure and urban-rural integration of coal resource based city are built firstly in this paper.By taking Yongcheng city for demonstration, the coordinated development degree between infrastructure and urban-rural integration is calculated based on the improved principal component analysis method.The calculation results indicate that the index of infrastructure construction is less than that of urban-rural integration from 2006 to 2015.The evaluation analysis of coordinated development reveals that,the infrastructure and urban-rural integration have experienced from preliminary coordination to moderate coordination but both with lagged growth of infrastructure.The research results reflect that the coordinated development evaluation can be used to quantitatively describe the interaction relation between infrastructure and urban-rural integration, and discover the coordinated development laws, and hence can be utilized to guide the infrastructure construction and provide theory evidence for achieving sustainable development of urban-rural integration.