What is the purpose of acceleration lanes when joining a fast road?
Reviewed on 17 Jul 2026
- A To stop and wait for a gap
- ✓ To adapt speed to the traffic flow
- C To overtake vehicles on the main road
- D To park temporarily
Why this is the correct answer
Acceleration lanes are designed to help drivers reach a speed suitable for merging into traffic flow. However, if traffic conditions on the main road prevent a safe merge, the driver must yield and, if necessary, stop at the beginning of the acceleration lane to wait for a safe gap before continuing.
More questions on Manoeuvres
- When joining traffic, even if the movement is straight into the traffic, the driver:
- When a bus intends to leave its stop to rejoin traffic, other drivers must:
- Before changing lanes, in addition to checking the mirrors, what must the driver check?
- When changing lanes, to whom must the driver give way?
- A lane change must be performed:
Practise this topic: 30 free questions, save your progress
Ready to pass the DGT theory test?
Practise official-format questions in English, with explanations after every answer and full progress tracking.
Try a free practice test