人口減少期における市街地のコンパクト化について

概要

論文の詳細を見る
In this era of decreasing population, urbanized areas should be made compact in order to maintain the vitality of a city and efficiency in various activities. There are seven types of urban compaction with respect to a whole city and DID, according to data on population, area, population density, and the population share of DID. Compaction of DID can be defined as increase in the population density of DID without expansion of the area, while that of a whole city can be defined as increase in the population's share of DID. Two types are compaction involve both DID and a whole city, one type is that of a DID, and the remaining four types are those of whole cities. Some compaction cases are accompanied with decay of DID. With Japanese census data for 672 cities during 1970-2000, cases of DID compaction were found to be far less than compaction of whole cities. Cases of desirable compaction both DID population and density increased are not many. Only five cases are found to be those of continuous DID compaction. Also, large-scale compaction cases are limited. This statistical analysis thus reveals that urban compaction is not easy to achieve and therefore, requires some effective policy tools.
2007-03-30