On the Analysis of the Coordination of City Scale Based on 3S System in China

Firstly,the concept of city scale 3S system is proposed.And then,the coordination degree of single system for each subsystem and 3S system of city scale are defined.From the dimension of time and space,the coordinations of city scale of our country are compared,which based the coordination degree of each subsystem and 3S system of city scale.The results show that either from time or space dimension the coordination of each subsystem and 3S system of city scale are relatively poor and deteriorating.The coordination for subsystem of city built-up area is the best.The comparative advantage of coordination for each subsystem of city scale in sub-regional is differentiation.