Driving a car inside a tunnel, what safety distance must you maintain from the vehicle ahead if you do not intend to overtake?

Question

DentroTest · Accepted Answer

In tunnels and underpasses, the risk of pile-ups and difficulty of evacuation necessitate an increased safety distance. For vehicles up to 3,500 kg (cars), regulations require maintaining at least 100 meters or a minimum interval of 4 seconds when not intending to overtake. If the vehicle weighs over 3,500 kg, the distance must be 150 meters or 6 seconds. The general rule of 'distance to avoid collision' is not sufficient in this specific case due to the hazardous nature of the section.

Driving a car inside a tunnel, what safety distance must you maintain from the vehicle ahead if you do not intend to overtake?

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