no50-53

[53] Study on the relationship between population density and urban space quality

○Kazuki Kurosawa¹, Toshiya Matsukawa², Bumpei Nakade³ (1. Takasaki City Office, 2. Nagaoka University of Technology, 3. Nagaoka University of Technology )

Keywords:Local Cities, Population Density, Land Use, Small Area Aggregate

The aim of this study is to compare multiple areas of similar density with various time and space, and to clarify the actual situation of the areas forming the density. In addition, the aim is to compare the past population density and urban conditions, examine the factors of urban transformation, and reconsider the meaning of using population density as a planning index / evaluation index. We compare the urbanized land ratio and residential land ratio in 1970, 1990, and 2015 in 37 districts. As a result, regarding the change in density, we confirm that the factors that brought about the increase in density are the progress of urbanization, the increase in the number of apartment buildings, and the increase in height and scale. On the other hand, in the case of density decrease, we confirm the change in the use of residential land, the outflow of population due to the separation of households, and the natural decrease.