Rapid transit system in Berlin, Germany
Railways in the Bernese Alps
Elevated train system in Chicago
Urban rail system in Chongqing, China
Railway company in the UK
Metro network in Helsinki, Finland
Urban rail system in Puerto Rico
Metro system in Hyderabad, India
Suburban rail network in London
Rapid transit system in Los Angeles, US
Proposed metro system in Melbourne, Australia
Rapid transit system in Munich, Germany
Metro system in Nanjing, China
Commuter rail system in São Paulo, Brazil
Extensive subway network in Seoul, South Korea
