Center's Service Area Considering Topology

Aimed at two problems that the integrated object is divided by service region polygon and the result cannot correctly express true relationship between topological entities exist in center services construction of GIS network analysis,service region is divided into bound of force and service area,and the construction methods of the two concepts are designed in this paper.Research conclusions can provide ideas and preliminary solutions for research of center service area that considering topology between graph of center force and service objects.