Commuter rail, or suburban rail, is a passenger rail transport service that primarily operates within a metropolitan area, connecting commuters to a central city from adjacent suburbs or commuter towns. Commuter rail systems are considered heavy rail, using electric or diesel trains. Distance charges or zone pricing may be used.
Mumbai Suburban Railway carries more than 7.24 million commuters on a daily basis
Very short commuter train in push mode.
GO Transit serves the Greater Golden Horseshoe region surrounding Toronto. Its train services are transitioning from a peak direction commuter railway to a Regional Express Network.
A Sydney Trains B set with an upper and lower deck
Various terms are used for passenger railway lines and equipment; the usage of these terms differs substantially between areas:
Chicago Transit Authority Chicago "L" tracks in the Chicago Loop at the Adams/Wabash station at night
A 2600 series car brings up the rear of a Red Line train (temporarily rerouted through the elevated tracks of the Chicago Loop) at Randolph/Wabash.
Parry People Mover ultra light rail on Stourbridge Town branch line
An interurban tram from the Philadelphia & Western Railroad, which survived long in the interurban business