The Changing Urban Spatial Structure in the Development of Digital City

On the theoretical basis of the development of information city and informational technology, the study measures the accessibility, is one of important pointers that we can observe the chance of development of an area.

As the advance of information and communication technologies, the traditional accessibility needs to be modified. The report tries to propound the meaning of “Spatial Accessibility”, and basis of universal service to gauge the difference chances of getting information of areas, than gauge the new spatial impedance. A case study of spatial accessibility in Tainan City indicates that develops from the single nucleus of traffic accessibility to the outside diffusion, the development of the spatial structure changed a lot because of the information technology affects the development of area.