noun
planned city
A city designed and built according to a comprehensive plan, often with zoning, infrastructure, and public spaces laid out in advance.
ブラジリアは有名な計画都市です。
Brasília is a famous planned city.
都市計画 refers to urban planning as a process or field, while 計画都市 is the resulting city itself.
Compound of 計画 (plan) and 都市 (city).