That would be Australia. The US, Canada, Mexico and parts of Europe have them but they are not usually called road-trains and they are not as long as the Aussie ones can get.

The big ones like that often are used on mining lands, where there is only traffic of mine employees. They don't actually drive on state highways.

Yes its from autralia

Yup they are driven on state highways, in fact, the Bruce Highway in particular that ran straight through my home town! Makes me homesick!

Once they get past Toowoomba (west of Brisbane) they can hook up 3 trailers. Never seen em with more than that though. Further out they can put more on for the Darwin route etc.

West Aussie has them on the highways north of Perth.The side tippers run on all of the northern highways over that side,usually from the mines to the ports.

the pics showing the 6 trailer power tains are the only ones not able to run on the open roads,they onsite only unless they split them in half.The pic with all the trailers lined up on the highway im THINKING looks like the world record attempt for the longest roadtrain at Merriden in West Aussie back in 1998/9..BUT I COULD BE WRONG!!!!!!!!!!

It's Australia, mate!

Has anyone mentioned those roadtrains are from Australia

oh yea and they're from australia

..where are they from?

Oh what could be worse than crashing a truckload of gas? Crashing THREE truckloads of gas!

Not New Zealand, it's...

I heard these things need a couple of kilometres to brake to a full stop... better get out of the way if one is coming.

it's sparta!

2 trailer max in CA

I have never seen this before...very interesting..

one salary for many loads

the US has some screwy combinations.
Single trailer up to 53 feet on any interstate

doubles and triples vary from state to state

Double 53 footers
double or triple 28 footers.
back in the 60s the used to run rocky mountain doubles which was a 45 and a 28
when they got to California they would slide fifth wheel all the way forward so the short trailer was right up against the cab.. a pin on the back of the tractor locked into the trailer. essentially turning it into a straight truck pulling a trailer which was legal in CA

yes, it's in australia.

I'm told they're from Australia. The front guards are for knocking out kangaroos I think?

lolololo

3 trailers are common for A type combos, others by permit. Many semi-remote mines get special permits to run big combos on a predetermined route. Note that some of the big ones are A-B combinations to reduce wander.

the b&w pic is a B-model mack, which was one of the first trucks to make long distance haulage possible in Australia.

The front "guards" are called bull-bars for a reason.