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 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 Mass Rapid Transit (Bangkok) or Metropolitan Rapid Transit, Thailand Mass Rapid Transit (Malaysia), a rapid transit system in Greater Kuala Lumpur, Malaysia Mass Rapid Transit Corporation (Malaysia), the developer and asset owner of the Mass Rapid Transit project Mass Rapid Transit (Singapore), a rapid transit system in Singapore Taichung Mass Rapid Transit or Taichung Metro, 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 See also MRT (disambiguation) Rapid transit (disambiguation)