Abstract:

 To build the world-class urban agglomeration with the capital as the core is the important aim of Jing-Jin-Ji (Beijing-Tianjin-Hebei) coordinated development strategy Spatial layout of Jing-Jin-Ji is a key factor in the process of building Jing-Jin-Ji urban agglomeration The urban agglomeration hierarchy model is established to clarify the layout based on grey cluster analysis The empirical study shows that the spatial structure of Jing-Jin-Ji is divided into four levels based on the index system of regional economic development The results will provide references for solving the problems of vague hierarchy, unclear function positioning and poor collaborative mechanism of Jing-Jin-Ji urban agglomeration

Key words: coordinated development of Jing-Jin-Ji, urban agglomeration, grey cluster analysis, analytic hierarchy process