Abstract
This paper reports the town structure about Nihonbashi-Ginza. central Commercial district in Tokyo by showing with such figures as the parcentage of the floor space to the building lot, the average value of stories, and the parcentage of the total floor space to the building lot. The study is especially layed emphasis on the rparly changes of these figures. Besides, such analyses are also reported in this paper as the analyses of the existing condition about the use of buildings in this area, the existring scale of the blocks, and the existing scale of the floor spaces about highstoried buildings. This study possesses the part of the study concerning of generated traffic volume from the Central Business district in Tokyo. Then, the analysis of the existing traffic flow in this area will be reported some-day. The conclusions of this study are as follows, 1) The dominant uses of the buildings in this district are selling commerce, and business commerce. But the south-half part of this district is dominated by the selling commerce and the horth-half part of this district is dominated by the business commerce. 2) The existing parcentage of the floor space to the building lot is generally 80%. It is supporsed to be the ultimate upper limit of this figure. This figure is equally divided to the part of the wooden buildings and to the part of R.C building. It is also supposed that the floor spaces of wooden buildings will be gradually substituted by the floor spaces of R.C Buildings. 3) The existing parcentage of the total floor spaces to the building lot is generally 330%. This figure will be in creased to about 640% by 1975. Especially, the figure of Nihonbashi district that is now 380% is supposed to show nearly 900% by 1975. 4) The existing average scale of the blocks in this district is 0.3 ha. 5) The existing average scale of high storied building is nearly 0.06 ha. But, there are too maximum value in this figures. The small maximum value of this figures is nearly 0.02 ha, and the large maximum value is almost 0.13 ha.
