Tokyo Metro

Tokyo Metro is one of two rapid transit systems based in Tokyo, Japan, the other being the Toei Subway.
The company's history dates back to 1927 with the opening of the Tokyo Underground Railway, which later became the Tokyo Rapid Railway (currently operational as the Tokyo Metro Ginza Line); a company was formed in 1941 under the name of Teito Rapid Transit Authority, also known as TRTA or Eidan; Eidan would be renamed Tokyo Metro in 2004.
Tokyo Metro uses two track gauges; 4 ft 8½ in (1,435 mm) for the Ginza and Marunouchi Lines and 3 ft 6 in (1,067 mm) for the remaining lines.
==References==
*Wikipedia.org
Category:Companies
Category:Japanese Railways
Category:Subway Systems