Mass Rapid Transit in general refers to a fully grade separated heavy-rail metro system.
The term may also specifically refer to: Chennai Mass Rapid Transit System, a rapid transit system in Chennai, India Jakarta Mass Rapid Transit, a rapid transit system in Jakarta, Indonesia Mass Rapid Transit Corporation (Malaysia), a Malaysian state-owned company Klang Valley Mass Rapid Transit (KVMRT), a rapid transit system in Greater Kuala Lumpur, Malaysia Johor Bahru–Singapore Rapid Transit System (RTS Link), a cross-border rapid transit system linking Johor Bahru and Singapore Mass Rapid Transit (Singapore), a rapid transit system in Singapore Taichung Mass Rapid Transit or Taichung MRT, a rapid transit system in Taichung, Taiwan Taipei Mass Rapid Transit or Taipei Metro, a rapid transit system in Taipei, Taiwan Taoyuan Mass Rapid Transit System or Taoyuan Metro, a rapid transit system in Taoyuan, Taiwan Kaohsiung Mass Rapid Transit or Kaohsiung Metro, a rapid transit and light rail system in Kaohsiung, Taiwan Mass Rapid Transit Authority of Thailand, a government agency responsible for overseeing the operation of rapid transit systems in Thailand Metropolitan Rapid Transit, a rapid transit system in Bangkok, Thailand
See also MRT (disambiguation) MTR, or Mass Transit Railway, Hong Kong Mass Rapid Transit Corporation (disambiguation) Rapid transit (disambiguation)