中文摘要：

基于既有研究综述了1990年代以来日本大都市圈的发展动态。1990年代初期,东京都市圈郊区扩张的势头停止,取而代之的是中心区的人口增加,即人口的都心回流趋向。究其原因,泡沫经济中持续上升的地价于1986～1991年间开始回落,由此引发了城市中心区的住宅建设,带动了诸多价格适中的商品住房供给。此外,伴随少子化,人们为追求住宅面积而迁往郊区的势头也已减弱;日益增多的老年人反而为了追求便利性从郊区的独立住宅迁往市中心居住,郊区一些公共交通不便的居住区人口开始减少。在地方都市圈,类似的现象也已出现,甚至还存在总人口减少的可能。在此状况下,抑制郊区开发、建设紧凑城市的规划政策开始受到重视。

英文摘要：

This paper aims to present a general view of changes in spatial structures of Japanese metropolitan areas after the 1990s based on previous studies.Discontinuation of suburban expansion and recovery of inner area population have been observed in the Tokyo metropolitan area since the 1990s.Both the collapse of land myth and the continuous decrease in land price during the 1990s were pointed out as major factors directly contributing to these phenomena.The land myth which kept the land value increasing had induced vigorous investments in land since the post-war rapid economic growth period.This movement had been busted in the collapse of bubble economy of the late 1980s.As a result,the amount of land supplies in the inner part of Japanese metropolitan areas became increased,and the construction of affordable condominiums became active significantly.On the other hand,the trend of low birthrate weakened the inner-to-suburb residential migration in metropolitan areas according to life cycle.Increasing number of aged residents prefer condominiums in the inner areas to detached houses in suburbs because of convenience in living without depending on automobiles.In fact,there were many senior citizens who migrated from suburbs to inner areas.On the contrary,the residential areas without adjacency to the convenient public transportation system in outer suburbs tend to become less popular among all generation,thus the population in such areas began to decrease.Furthermore,the similar phenomena are also seen in provincial metropolitan areas.Population in such areas is predicted to decrease in the near future.Therefore,some of major provincial cities have already proposed ＂compact city planning＂ policies to regulate new suburban development and improve public transportation systems by providing both train and bus services in the inner areas.