Host: The Association of Japanese Geographers
This study clarified the spatio-temporal structure of the buildings in Sapporo City and the reconcentration of dwelling space in the central area. The data for analysis was the gross floor area ratio and the data sources were the basic survey data for city planning of Sapporo City in 1980, 1986, 1991, 1996 and 2001. First, this research applied the quasi three-mode factor analysis to the three-dimensional matrix ( 3,934 districts, 14 building uses, 5 years ), and considered the spatio-temporal structure of the buildings in Sapporo City. Next, this research analyzed the location of houses, apartments, and commercial establishments by the direction from the central area, and the accessibility to railroad and subway stations. The main results were as follows. As for the spatio-temporal structure of buildings in Sapporo City, commercial establishments excel in the central area, and houses and apartment houses occupy most of the surrounding area. The density of buildings was greater along the subway line. Apartment houses increased in density as opposed to commercial establishments or houses near the stations around the central area. It is thought that reconcentration of this dwelling space in the central area was a phenomenon seen through the period for this research, and accelerated from the second half of the 1990s. Moreover, GIS was useful in the creation of the map data that have a new boundary line, as well as in the calculation of the attribute data accompanying the boundary changes in the analyses.
