1986 Volume 21 Pages 13-18
During the last cenrty, the urban structure of the inner area of Tokyo, which consists ofarterial streets, railways and subways, has been increasingly constructed. This structure has brought nodal areas at the places in which more than two railways meet. In these areas, a various kinds of enterprise and organizations has been spatially accumulated, these noral areas are related to each other and forms a system of links between center and sub-centers.