Passenger Trains
Limiteds,
Accommodation,
and
Commuter trains
Limiteds
usually feature newer cars and stop only at the most important cities. They will carry few, if any, baggage and mail cars; station stops are short
Accommodation trains
stop at most or all cities on a run. They often carry a lot of baggage, mail, and express cars, and some station stops may be long so that these cars can be loaded and unloaded.
Commuter trains
take people to and from work in a large city. Commuter trains make many stops, but the stops are very short
about Freight Trains