大だい都と市し圏けん

noun

greater metropolitan area; megalopolis; conurbation

Refers to a large urban region that includes a central city and its surrounding suburbs or satellite cities, often used in urban planning and geography contexts.

• 東とう京きょう大だい都と市し圏けんの人じん口こうは約やく3700さんぜんななひゃく万まん人にんです。

  The population of the Greater Tokyo Area is about 37 million.

• 大だい都と市し圏けんでは交こう通つう渋じゅう滞たいが深しん刻こくな問もん題だいだ。

  Traffic congestion is a serious problem in metropolitan areas.