Question 7107
In a tunnel with one lane for each direction, what is the minimum safe following distance the driver of a passenger car must leave from the vehicle ahead if they do not intend to pass?
- 50 meters.
- 200 meters.
- 100 meters.
Show answer and explanation
Correct answer: 100 meters.
Passing is prohibited in a tunnel with one lane in each direction, so a passenger car must always leave at least 100 meters or 4 seconds between it and the vehicle ahead. In the image, a solid line separates the two directions at the tunnel entrance. Vehicles with a maximum authorized mass over 3,500 kg must leave 150 meters or 6 seconds.