What is the minimum safety distance a truck over 3,500 kg MAM must maintain with the vehicle in front in a tunnel or underpass?

Question

DentroTest · Accepted Answer

In tunnels and underpasses, safety is a priority due to evacuation and ventilation challenges. General regulations state that vehicles with a Maximum Authorized Mass (MAM) exceeding 3,500 kg must keep a distance of at least 150 meters or a safety interval of 6 seconds from the vehicle in front. This differs from light vehicles (cars), which are required to keep 100 meters or 4 seconds. This increased distance for trucks is due to their greater inertia and braking distance.

What is the minimum safety distance a truck over 3,500 kg MAM must maintain with the vehicle in front in a tunnel or underpass?

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