When driving a truck inside a tunnel with one lane for each direction and with no intention of overtaking, what is the minimum mandatory safety distance from the vehicle ahead of you?

Question

DentroTest · Accepted Answer

The General Traffic Regulations (Article 95(6)) establish that, when traveling through tunnels or underpasses with no intention of overtaking, an increased safety distance must be kept to avoid pile-ups and make evacuation easier in emergencies. For heavy vehicles with a maximum authorized mass (MAM) of more than 3,500 kg, such as the trucks covered by the class C license, this separation must be at least 150 meters or a time interval of 6 seconds. The 100 meters (or 4 seconds) are reserved exclusively for vehicles of up to 3,500 kg MAM, while 50 meters is an insufficient distance and contrary to the regulations in these structures.

When driving a truck inside a tunnel with one lane for each direction and with no intention of overtaking, what is the minimum mandatory safety distance from the vehicle ahead of you?

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