Abstract
This paper aims to establish "urban character-unity" by the pattern of the topography requirement in Tokyo old ward area. The conclusions in this paper are as follows ; "Urban character-unity" has to be established by the relation of physical elements and the particular image of each part of the town in the character theme. We can find the character theme in Tokyo old ward area by hearing the residents' image of their town. And so, the character theme is composed by three factors. The first factor is the topography requirement, the second is the social requirement, and the third is the historical requirement. The topography requirement is the most important factor of the urban character theme. So, it is necessary to establish "urban character-unity" by the pattern of topography requirement. We can find the difference of landscape images from the distribution of the geographic place names. The geographic place names overlaps reciprocally their image-influence along the boundary stripes of topography, and because of topography requirement in Tokyo old ward area are the five following sections. As a result, the distribution of Tokyo old ward by the pattern of topography requirement is as follows ; 1. Yamano-te 1-1 Ushigome + Koishikawa + Kongo + Shitaya 1-2 Yotsuya + Akasaka + Azabu 1-3 Koujimachi + Shiba 2. Shita-machi 2-1 Asakusa + Kanda + Nihonbashi + Kyobashi 2-2 Honjo + Hukagawa Additionally we can establish a detailed "urban character-unity" from a distribution of the three factors of the theme using a 500 m mesh.
