In the presented situation, when driving further straight through the next intersection do you have priority over vehicles approaching from the right?

In the video you are driving along a street in a city between blocks of flats and tenement houses; on the right there is sign D-1 "priority road" with plate T-6a, on which the thick line runs straight on and the thin ones go off to the side, and under them sign D-4b "entry to a no through road". When going straight on through the nearest junction, you have right of way over vehicles coming from the right. The answer is: yes.

The Regulation on road signs and signals states that sign D-1 marks the beginning or continuation of a priority road, and plate T-6a shows the actual course of this road through the junction: the thick line is the priority road, the thin ones - minor roads. Here the thick line runs straight on, so when going straight on you stay on the priority road, and vehicles from the side streets, including from the right, give way to you. Sign D-4b tells you that the side street on the right is a no through road - a dead end - which does not affect right of way, but explains why there is little traffic from it. The right-hand rule from the Road Traffic Act does not apply, because right of way is set by signs. You drive through smoothly, exercising particular caution and watching whether the driver coming out of the dead-end street has really stopped.

Legal basis: § 43 para. 1 and 2 and § 45 para. 2 of the Regulation on road signs and signals; Art. 25 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)