A road train can be roughly 27.5 to 60 metres long. It needs space to stop, turn and pass, and the safest driver is predictable rather than helpful in an improvised way.
Following and overtaking
Stay well back, especially on unsealed roads where dust can erase visibility. Never pass without a long, fully visible clear stretch.
Do not overtake a turning road train or cut in after passing. Its stopping distance is much greater than a car’s.
When a road train passes you
Northern Territory guidance says to maintain speed and keep left, then slow only once the truck has moved out to pass. Sudden early slowing can disrupt the manoeuvre.
Do not rely on informal flashing lights or UHF directions as if they were legal traffic control.
- Be predictable
- Keep left
- Leave a long gap
Single-lane and unsealed roads
On an NT single-lane highway, slow and pull off, moving slowly on the shoulder for an approaching road train when safe. Expect dust and loose stones.
Choose a safe place and avoid a soft, steep or damaged shoulder. Conditions and jurisdiction guidance still control the decision.
Where you will meet them
Road trains operate across the Northern Territory, outback Queensland, northern South Australia and much of Western Australia, with the longest combinations on designated routes. Triples and quads are normal on those roads.
They are also present on approach roads to mines and cattle stations, frequently on unsealed surfaces where dust makes them nearly invisible until close. Assume they may be around any blind corner on a station road.
Their length means they cannot stop, swerve or move over meaningfully. Every safety decision on these roads is yours to make rather than theirs.
- Triples and quads are routine
- Station roads carry them too
- They cannot swerve or stop quickly
Overtaking one safely
You need a very long, fully visible clear stretch, considerably more than for a truck at home. Judging the length of a road train from behind is difficult, and misjudging it is the classic fatal error on these roads.
Never begin an overtake on a crest, a curve or where dust limits visibility. If you cannot see the entire combination and a long clear road beyond it, wait.
Once past, do not cut back in early. Their stopping distance is far greater than a car's, and pulling in close in front removes the only margin they have.
- You need far more clear road
- Never overtake into dust or a crest
- Do not cut in close after passing
When one is passing you or approaching
When a road train overtakes, maintain your speed and hold your line to the left. Slowing suddenly disrupts the manoeuvre and lengthens the time it spends on the wrong side of the road.
On single-lane bitumen, common in the outback, slow down and move onto the shoulder for an approaching road train, keeping both left wheels off the seal. Expect flying stones and a large dust cloud.
On unsealed roads, pull well over and stop if visibility will disappear. Waiting thirty seconds for dust to clear is the correct response, not driving blind through it.
- Hold speed and line when passed
- Move off single-lane seal for oncoming
- Stop and wait for dust to clear
Road trains at roadhouses and rest areas
Roadhouses are working stops for road train drivers, and the parking areas are laid out for vehicles that cannot easily reverse or turn. Park clear of the truck bays and the entry and exit lines.
Drivers are on regulated rest breaks and the parking bays exist for that. Blocking them is both inconsiderate and creates a genuine safety issue when a driver has to move a fifty metre combination around a badly parked van.
A UHF radio on channel 40 lets you hear truck drivers discussing conditions ahead, which is genuinely useful information on remote highways.
- Park clear of truck bays
- Drivers are on mandated rest breaks
- Keep entry and exit lines clear
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