central business district

Japanese: central business district（英語表記）centralbusinessdistrict

… In 1925, American urban sociologist E. W. Burgess, studying Chicago, presented his theory of concentric circle structure as a theory of urban regional structure. This theory describes a concentric circle structure in which the central area of an urban region (Burges called the Central Business District (CBD)) is surrounded by transitional zones, worker housing zones, middle and upper-class residential zones, and commuter zones. In large cities like Chicago, a city center is formed where the central functions of administration, economy, culture, and other functions that run the city and metropolitan area are concentrated. …

From [City]

…These functional districts are arranged in no particular order, but form a mosaic of downtown areas. These downtown areas are also called CBDs (central business districts). Within residential areas, residential shopping districts (peripheral shopping districts) that sell everyday goods and services are formed here and there, or such stores are scattered throughout the area. …

From the city center

…However, the term city center usually includes the surrounding areas, and is also called the city center or downtown area. CBD (abbreviation of central business district) is also used almost synonymously. …

*Some of the terminology that refers to "central business district" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…　アメリカ人の都市社会学者E.W.バージェスが1925年，シカゴを調査地域にとり，都市の地域構造の理論として同心円構造論を発表した。これは，都市域で中心部すなわち都心(バージェスは中心業務地区Central Business District(CBD)とよぶ)を取り巻いて漸移地帯，労働者住宅地帯，中･上流住宅地帯，通勤者地帯と同心円状に分布するという圏構造をみせている。シカゴのような大都市では都市および都市圏を動かす行政，経済，文化などの中枢的機能の集中した都心が形成される。…