In the presented situation, are you obliged to stop before the major road?

In the photo you are approaching a junction along a narrow street in a small town, and on the right there is sign B-20 "STOP"; a car is driving along the intersecting road. You are obliged to stop before the priority road. The answer is: yes.

The Regulation on road signs and signals states that sign B-20 means that you must not enter the junction without stopping before the priority road, and that you must give way to drivers travelling on that road; you stop at the designated place, and if there is none - at a place from which you can make sure that you will not obstruct traffic on the priority road. A tenement house on the right blocks your view, so you stop completely, lean forward just enough to see the road, and move off only when it is clear.

Legal basis: § 21 para. 1 and 2 of the Regulation on road signs and signals