Road trains or articulated trucks (which can be as long as the length of 10 cars) can take up to 2.5 kilometres (1.5 miles) to overtake if you’re travelling at 100 kilometres (62 miles) per hour. Allow plenty of room before you try to overtake a road train as they often sway from side to side as you overtake. Be prepared for the wind-rush when passing as it can pull you towards the road train.