Are you warned in this situation of a 1.2 km-long rough roadway beyond this sign?

Why?

The A-11 “uneven road” sign warns of irregularities across the road surface. The T-2 plate marked “1,2 km”, with arrows, gives the length of the affected stretch. It does not indicate the distance to the first uneven section.

§ 7 ust. 1 oraz § 3 ust. 5 rozporządzenia w sprawie znaków i sygnałów drogowych