You intend to turn left. Do you have the right of way over the vehicle approaching from the left?

In the video you are approaching a junction in a town; on the right there is sign D-1 "priority road" with plate T-6a, on which the priority road turns right, and the road from the left is shown by a thin line as a minor road; you intend to turn left. You have right of way over the vehicle approaching from the left. 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 real course of the priority road through the junction: the thick line is the priority road, the thin line is the minor road. The vehicle from the left is on a minor road - at its entry there should be sign A-7 or B-20 - so it must give way to you, even though you are turning left and leaving the priority road. The right-hand rule from the Road Traffic Act does not apply here, because right of way is set by the signs. You would only have to give way to vehicles travelling on the priority road, that is those approaching from the right, from the direction in which the thick line turns. Before turning you switch on the left indicator and, even though you have right of way, you watch the driver on the left - they may not notice the sign.

Legal basis: § 43 para. 1 and 2 of the Regulation on road signs and signals; Art. 25 para. 1 and Art. 4 of the Road Traffic Act (Prawo o ruchu drogowym)