Editing Rail transport operations (section)

===Types of vehicle===
{{Main|Train|Locomotive|Railroad car}}

[[File:British Rail Class 143 trains.jpg|thumb|Two [[British Rail Class 143]] [[Diesel Multiple Unit|DMUs]] at Cardiff Queen Street station in the United Kingdom. Both trains were operated by [[Arriva Trains Wales]] but are now operated by [[Transport for Wales Rail]].]]

Trains are [[Push-pull train|pushed/pulled]] by one or more [[locomotive]] units. Two or more locomotives [[Railway coupling|coupled]] in multiple traction are frequently used in freight trains. Railroad cars or [[rolling stock]] consist of [[Passenger car (rail)|passenger cars]], [[freight car]]s, [[Maintenance of way|maintenance car]]s and in [[United States|America]] [[caboose]]s. Modern passenger trains sometimes are pushed/pulled by a tail and head unit (see [[top and tail]]), of which not both need to be motorised or running. Many passenger trains consist of [[multiple unit]]s with motors mounted beneath the passenger cars.