Category:Rapid transit

Underground, subway and metro are common names for a form of mass transit public transport system employing trains. In many cases, at least a portion of the rails are placed in tunnels dug beneath the surface of a city. [1] Many systems combine Metro with other types of transit. See: Category:Intermodal transportation authorities, and Wikipedia:WikiProject Rapid transit for coordination.

The main article for this category is Rapid transit.

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