How should you enter a roundabout?
- Come to a complete stop just before entering the roundabout
- Move into the appropriate lane for both entry and exit ✓
- Accelerate as you enter the roundabout
- Enter simultaneously with another vehicle already in the roundabout
Answer: B. Move into the appropriate lane for both entry and exit
Move into the lane that suits both your entry into and exit from the roundabout before you get there.
Why this is the answer
The truck handbook says a large vehicle in a roundabout may need the full width of the roadway, including the central apron, and may need to occupy both lanes before entering. That makes lane choice something you settle on approach, not after you are in the circle. The warning-sign passage also says to reduce speed at a roundabout, so the approach is about positioning and slowing, not stopping or speeding up.
Why the other answers are wrong
- A. Come to a complete stop just before entering the roundabout — A complete stop before entering is not what the passages describe; the roundabout warning says to reduce speed, and nothing in the passages says a complete stop is required.
- C. Accelerate as you enter the roundabout — The roundabout warning sign tells drivers to reduce speed, so accelerating on entry goes against the handbook guidance.
- D. Enter simultaneously with another vehicle already in the roundabout — The passages tell drivers to give large vehicles plenty of room to manoeuvre, so entering at the same time as a vehicle already in the roundabout is not the approach described.
Remember it
Before the circle, pick the lane your truck needs for the whole turn; a large vehicle may use both lanes and the apron.