Are you entering a built-up area in the presented situation?

In the photo, in winter, you are entering a village; on the right there is a white board with a black silhouette of buildings - sign D-42 "built-up area", and below it B-33 "speed limit" of 40 km/h. In this situation you are entering a built-up area. The answer is: yes.

The Regulation on road signs and signals states that sign D-42 "built-up area" marks the entry to a built-up area, and sign D-43 "end of built-up area" - the exit from it. From this sign, the 50 km/h limit set by the Road Traffic Act applies at all times of day and night, and here sign B-33 additionally lowers it to 40 km/h. The Regulation adds that a prohibition sign placed below sign D-42 applies up to sign D-43 or E-18a, unless it is cancelled earlier - so the "40" applies through the whole village, not only up to the nearest junction. It is worth telling D-42 apart from the green board E-17a with the town name: only the white board with houses creates a built-up area for the purposes of the speed rules. In winter, on snow, 40 km/h is an upper limit anyway, not a target.

Legal basis: § 58 para. 3, § 15 para. 4 and § 27 para. 1 of the Regulation on road signs and signals; Art. 20 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)