在19世纪以前,日本、欧洲以及亚洲的大城市都具有固有文化和城市形态。但是自20世纪中叶至21世纪,在各方面向我们提出了共同的问题。一是无论哪个城市都面临着古老的城市认识正在崩溃的危机。具体地说城市已不像过去那样具有一个中心的安定的城市形象,而是围绕着复数中心运转的星云状的城市域,这种现象 Before the 19th century, major cities in Japan, Europe, and Asia all had inherent cultural and urban forms. But from the middle of the 20th century to the 21st century, all parties raised common problems for us. One is that no matter which city is faced with the crisis of ancient city awareness is collapsing. Specifically, the city does not have a central, stable image of the city as it used to. Instead, it revolves around a nebulous city that operates in multiple centers.