On a two-way road with shoulders, under what situation is it permitted to enable an additional traffic lane?

Question

DentroTest · Accepted Answer

The correct answer is when traffic is heavy and the width of the platform allows it. As an expert, let me explain the logic: A circumstantial additional lane is created by 'utilizing' the shoulders to transform a two-lane road (one for each direction) into three lanes. For this to be legal and safe, specific conditions must be met: Reason: It is only done to improve flow in cases of high traffic density or roadworks. Requirements: All vehicles (both those on the shoulders and in the center) must have their low beam headlights on and respect a maximum speed of 80 km/h and a minimum of 60 km/h. Why the other options are incorrect: It is not done 'whenever increasing speed is desired'; in fact, this lane forces a speed reduction for safety. It does not imply 'suppressing traffic in one direction', but rather reorganizing the available width so that both directions continue to flow, but with an extra lane.

On a two-way road with shoulders, under what situation is it permitted to enable an additional traffic lane?

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