If you are driving a truck inside a tunnel with several lanes in your direction and intend to overtake the vehicle ahead, what safety distance must you keep from it before starting the maneuver?

Question

DentroTest · Accepted Answer

The traffic regulations establish that, in tunnels or underpasses, vehicles of more than 3,500 kg maximum authorized mass (MAM) that do not intend to overtake must keep a minimum safety distance of 150 meters (or an interval of at least 6 seconds). However, when there are several lanes in the same direction and the driver clearly intends to overtake, it is not mandatory to keep that specific 150-meter gap; it is enough to keep the generic safety distance that guarantees being able to stop the vehicle without colliding if the one ahead brakes suddenly, until the lateral movement begins.

If you are driving a truck inside a tunnel with several lanes in your direction and intend to overtake the vehicle ahead, what safety distance must you keep from it before starting the maneuver?

Want to pass the Permit C and C1 (English) theory test first time?