Question 7369
In the tunnel shown, if you do not intend to pass, what safe following distance must you maintain from the vehicle ahead?
- At least 100 meters.
- One that allows sufficient visibility.
- At least 200 meters.
Show answer and explanation
Correct answer: At least 100 meters.
If you are not going to pass in a tunnel, leave at least 100 meters or 4 seconds between you and the vehicle ahead. This is the rule for vehicles with a maximum authorized mass of up to 3,500 kg, such as a passenger car; vehicles over 3,500 kg leave 150 meters or 6 seconds. The distance is a fixed figure, not one determined by visibility.