If traffic comes to a halt inside a tunnel and the tailback lasts more than two minutes, which safety measure must be taken?

Question

DentroTest · Accepted Answer

According to Article 115 of the General Traffic Regulations, anyone who is forced to remain with their vehicle stopped inside a tunnel for more than two minutes must switch off the engine until they can continue driving, keeping the position lights on. Switching off the engine prevents exhaust gases from building up in an enclosed space. Switching off the lights is the opposite of what is required: the position lights must remain on so that the vehicle is visible. Keeping the hazard lights on permanently is not the measure that the regulation imposes after the two minutes either: that signal serves to warn those approaching the tailback of the danger briefly, but the specific obligation is to switch off the engine.

If traffic comes to a halt inside a tunnel and the tailback lasts more than two minutes, which safety measure must be taken?

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