What specific risk does this vertical warning sign alert us to when traveling on the road?

Question

DentroTest · Accepted Answer

Sign P-29, “Crosswind”, warns of the danger due to the proximity of an area of the road where strong wind usually blows in a transverse direction (from the side). This situation is especially critical for riders of two-wheeled vehicles, such as mopeds, because of their low mass and stability: it can cause involuntary deviations from the path or falls, especially when leaving sheltered areas. Saying that it warns of vehicles obstructing the roadway is an error, because that danger is signed with P-32, “Obstruction on the carriageway”. And saying that it warns of a slippery road surface due to ice or snow is also wrong: that corresponds to P-34, “Ice or snow”.

What specific risk does this vertical warning sign alert us to when traveling on the road?

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