Correct answer
At least 150 metres, or a minimum interval of 6 seconds.
As a general rule, inside a tunnel, if you do not intend to overtake, you must leave a distance from the vehicle in front of 100 metres or a time interval of 4 seconds. For vehicles with an MAM of more than 3500 kg, this distance must be at least 150 metres or 6 seconds.
Practice more D licence questions
A self-check with exam-style questions on Bus driving techniques. Free, no signup.
All options
At least 150 metres, or a minimum interval of 6 seconds.
At least 100 metres, or a minimum interval of 4 seconds.
At least 50 metres and a distance that allows you to stop in the event of sudden braking.
Editorial status: editorially approved. This status does not certify legal review. Report a correction
Share this question
Keep studying
Related questions
- Without increases for alternative-fuel or zero-emission technology, what is the general maximum authorised mass of a three-axle articulated bus?
- On a road for motor vehicles outside a built-up area, your bus has an applicable maximum speed of 90 km/h. A car ahead maintains 90 km/h. May you exceed that limit to overtake it?
- Which is the minimum licence required to drive a 60-seat articulated bus without a separate trailer?
- On a dual carriageway outside tunnels, with more than one lane in your direction and no other specifically signed minimum separation, what distance must you keep between your bus and the vehicle ahead?
- Before starting a manoeuvre with a D1 or D bus, it is essential to:
- A blind person wants to board a public-service bus with their guide dog, recognised and identified as an assistance dog and meeting the applicable access conditions. Must you allow them to board?