what is tokyo subway named
The Tokyo subway (æ±äº¬ã®å°ä¸é, TÅkyÅ no chikatetsu) is a part of the extensive rapid transit system that consists of Tokyo Metro and Toei Subway in the Greater Tokyo area of Japan.here are two primary subway operators in Tokyo: 1  Tokyo Metro â Formerly the Teito Rapid Transit Authority (TRTA), it was privatized in 2004. 2  Toei Subway â run by the Tokyo Metropolitan Bureau of Transportation, an agency of the Tokyo Metropolitan Government.