Road signs, markings and traffic controlQuestion #15388
Does this road sign apply when the carriageway surface is dry?
Explanation
The supplementary plate "Wet surface" means that the sign it is used with — here a speed-limit sign — applies only when the carriageway is damp or wet. If the surface is dry, the speed limit does not apply.
KET reference: KET 1 pr. 845: the sign applies only when the carriageway surface is damp or wet.