A
road train,
roadtrain or
land train is a
trucking vehicle of a type used in remote areas of
Argentina,
Australia,
Mexico, the
United States, and
Canada to move
freight efficiently. The term
road train is most often used in Australia. In the United States, the terms
triples,
turnpike doubles, and
Rocky Mountain doubles are commonly used for longer combination vehicles (LCVs). A road train has a relatively normal
tractor unit, but instead of
towing one
trailer or
semi-trailer, it pulls two or more of them.