Abstract
Based on the analysis of urban function intensity index, this paper applied and improved potential model to implement measurement of the urban accessibility composite and spatial differences analysis in Beijing-Tianjin-Hebei Region of China. The results showed that, the grade of urban accessibility and economic linkage intensity in Beijing-Tianjin-Hebei Region were inhomogeneous; the spatial patterns of urban accessibility and economic linkage intensity in Beijing-Tianjin-Hebei Region revealed a spatial pattern distribution of spheres structure. According to the spatial pattern distribution rule of accessibility and economic linkage intensity, this paper revealed the problem of spatial pattern structure and traffic network structure in Beijing-Tianjin-Hebei Region, explained the role that economic level, development model and location playi in the difference of spatial accessibility, and proposed policy recommendations for improving the accessibility of transport networks.
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