Use of Public Roads
What is the minimum distance in a tunnel for vehicles over 3,500 kg MAM?
Reviewed on 17 Jul 2026
- A 100 metres or 4 seconds
- ✓ 150 metres or 6 seconds
- C 200 metres or 8 seconds
- D 50 metres or 2 seconds
Why this is the correct answer
Vehicles over 3,500 kg MAM must maintain a minimum distance of 150 metres or 6 seconds in tunnels.
More questions on Use of Public Roads
- Where must pedestrians walk if there is no sidewalk in an interurban area?
- In a built-up area, where must pedestrians walk if there is no pavement or other usable pedestrian area?
- Who decides which roads and areas roller skates, skateboards and e-scooters (personal mobility vehicles) may use?
- Are pedestrians allowed on motorways and expressways?
- What must pedestrians carry at night on interurban roads?
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