Abstract
This paper investigates the subdivision process of building sites, namely the change of the lot shape and the area of sites during 6 years in the agglomerative district of physical distribution business, where land readjustment was executed. The district is located in the east region of Sendai-city, Miyagi. Geographical relations between X and S are used to analyze subdivision process, in which X is the frontage-depth ratio and S is the area of a site. A longitudinal subdivision generates a straight line on (X, S) plane, and also does a horizontal subdivision a hyperbola. The use of sites has gradually changed mainly into wholesale business from open spaces or other uses, and the rate of site subdivision is high as the area of a site is big. A quantitative analysis leads to the conclusion that a site was divided into smaller ones longitudinally or horizontally at a higher rate in the specific region of (X, S) plane, and a designed depth of block put restrictions on the subdivision process of sites.
