The record for the longest road train is 1,474.3 m (4,836 ft 11 in) where a single Mack Titan prime mover, driven by John Atkinson (Australia), towed 113 trailers for a distance of approximately 150 m (490 ft) in an event sponsored by Hogs Breath Café, in Clifton, Queensland, Australia on 18 February 2006.
This length is the equivalent of 156 London buses!
The previous world record was set in Kalgoorlie in Western Australia and was a road train of 1,445 metres.
A road train or roadtrain is a trucking concept 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 and Canada the terms “triples”, “turnpike doubles”, and “Rocky Mountain doubles” are commonly used for longer combination vehicles (LCVs). A road train consists of a relatively conventional tractor unit, but instead of pulling one trailer or semi-trailer, a road train pulls two or more of them. They are referred to as “pup” trailers because of their historical use at dog farms.
A is a B-double.
B is a B-triple.
C is a double road train. A “Pocket road train” is similar, but with shorter trailers and dolly drawbar.
D is an AB-triple.
E is a BAB Quad.
F is an ABB Quad.
G is triple road train.
H is a 2AB Quad.
K represents the largest road trains operating in Australia and the world. Called a “Powertrain” or a “Body and six”, these machines operate at the Granites gold mine in the western Northern Territory, and are used in place of 200t dump trucks, because of the distances involved on the haul run. A 600 hp (450 kW) 19 L (1,200 cu in) Cummins engine powers the prime mover, whilst a 400 hp (300 kW) Cummins engine is installed in the rear trailer of the B-double, driving through an automatic transmission, giving a total of 1,000 hp (750 kW). Weights of 460 t (453 long tons; 507 short tons) are achieved with ore loading in side-tipper bodies on a 100 km (62 mi) round trip. As these trucks operate on private property, they are not subject to governed weight and length rulings, but instead are used in the most efficient way possible