There are scores of military settlements in these areas along the Great Wall which had changed into administration districts now,furthermore these settlements are becoming modern times town,The space distributions,form structures and scales of military settlements still exist today which provides important information to modern time s towns overall agreement research.

An analysis on the influence of expressways on regional urban system development;

Spatial Fractal and Organization of the Urban System of Wuhan Metropolitan;

The study on urban system in Dingxi district based on fractal theory;

Demonstrative research on town system structure in mountainous county region;

Calculated the aggregation dimension,grid dimension and correlation dimension which reveal the spatial structure character of town system in Qiqihar with the fractal theory and method.

Town system is an important appraisal index in the process of urbanization.

On the form and development of Northern Shaanxi cities and towns system;

According to administrative divisions and economical relationship and space~(-)time distance,the Lanzhou municipal loop was dicided and the developmental history of cities and towns system of Lanzhou municipal loop was reviewed the present situations and features and existing problems were presented.

With the quicker pace of global economic integration and our country s urbanization,the cities and towns system needs adjusting and improving.