Rapid transit
high-capacity public transport generally used in urban areas
Abidjan Metro
Seoul Metropolitan Subway
Bareilly Metro
Indore Metro
Kanpur Metro
Washington Metro
Omsk Metro
Recife Metro
rapid transit in the United States
Mecca Metro
Fortaleza Metro
Srinagar Metro
Prague Metro
Madrid Metro
Krasnoyarsk Metro
Chelyabinsk Metro
Hanoi Metro
Vijayawada Metro
London Underground
Toronto subway
Hohhot Metro
Helsinki Metro
medium-capacity rail transport system
Vienna U-Bahn
Samara Metro
Budapest Metro
Baku Metro
Kyiv Metro
Dnipro Metro
Ho Chi Minh City Metro
Honolulu Rail Transit
Minsk Metro
Sofia Metro
Beijing Subway
Barcelona Metro
Rome Metro
Dublin Metro
Catania Metro
Agra Metro
Hangzhou Metro
Oslo Metro
Saint Petersburg Metro
Changchun Rail Transit
Shiraz Metro
Amsterdam Metro
Wuxi Metro
Qingdao Metro
Baotou Metro
Hefei Metro
Guiyang Metro