The image of region often is not identical with the actual boundary of the region, sometimes the image crosses over the boundary. In this study, we focus on the building name, which includes place name, and analyze about the determinants of place name exuding (exuding phenomenon). We use GIS data of 23 wards of Tokyo in Japan, and focus on the 934 place names to analyze the spatial distributions. Our findings show that railway-station, high-rise buildings, and large infrastructure (river) in the region influence the place names to cross over the region because they play as a symbol in the region. Moreover, we can see low-exuding-places are located around high-exuding-places, because high-exuding-places are distributed overall in Tokyo. The average distance of exuding is nearly the same as the distance of walk, and the distance of exuding is high near the boundary of Tokyo, because of the frequent use of car in the area. It is found that the image of region is relevant to the range of life and activity.
