Inter-city rail services are express trains that run services that connect cities over longer distances than commuter or regional trains. They include rail services that are neither short-distance commuter rail trains within one city area nor slow regional rail trains stopping at all stations and covering local journeys only. An inter-city train is typically an express train with limited stops and comfortable carriages to serve long-distance travel.
A Acela Express high-speed train traveling on the busy Northeast Corridor between Boston and Washington, D.C. in July 2011
A Moroccan inter-city train at the Rabat station
DF4D with 25G passenger cars used for K-series trains
A China Railway High-speed trains
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