Which vehicle should not use the right-hand lane on a motorway?

Which vehicle should not use the right-hand lane on a motorway?

• A. A car travelling at normal speed
• B. A vehicle with a trailer
• C. A motorbike
• D. A four-wheel vehicle with no trailer

Answer: (B)

In motorway driving, the left-hand lane is for normal driving and the right-hand lane(s) are mainly for overtaking. Vehicles towing trailers are longer and heavier, which makes acceleration slower and steering less stable. That combination means they should stay in the left lane and only move to the right-hand lane briefly to overtake when it’s safe, then return to the left. Using the right-hand lane routinely with a trailer adds risk for the trailer and other traffic, so the best practice is to avoid the right-hand lane unless you’re overtaking. The other vehicles listed can use the right-hand lane to overtake when needed, but a trailer-towing vehicle should not rely on that lane for normal driving.

In motorway driving, the left-hand lane is for normal driving and the right-hand lane(s) are mainly for overtaking. Vehicles towing trailers are longer and heavier, which makes acceleration slower and steering less stable. That combination means they should stay in the left lane and only move to the right-hand lane briefly to overtake when it’s safe, then return to the left. Using the right-hand lane routinely with a trailer adds risk for the trailer and other traffic, so the best practice is to avoid the right-hand lane unless you’re overtaking. The other vehicles listed can use the right-hand lane to overtake when needed, but a trailer-towing vehicle should not rely on that lane for normal driving.