Question 7101
If you do not intend to pass, when must you maintain a safe following distance of at least 100 meters from the vehicle ahead?
- When driving on an overpass.
- When approaching a railroad crossing.
- When driving through a tunnel.
Show answer and explanation
Correct answer: When driving through a tunnel.
The minimum gap of 100 meters or 4 seconds, if you are not going to pass, is required in tunnels and underpasses, like the tunnel in the image. If your vehicle has a maximum authorized mass over 3,500 kg, the gap is 150 meters or 6 seconds. That specific distance does not apply on an overpass or when approaching a railroad crossing.