Does this sign warn you of approaching an intersection with a road on the left without right of way?

In the video you are driving on a two-way road outside town, among leafless trees; on the right you pass a yellow triangular sign with a thick vertical line and a thin branch to the left - A-6c. This sign warns that you are approaching a junction with a minor road on the left. The answer is: yes.

The Regulation on road signs and signals states that signs A-6a, A-6b and A-6c warn of a junction with a minor road on the side shown on the sign: A-6a on both sides, A-6b on the right, A-6c on the left. The thick line is your priority road, and the thin branch is the side road, where sign A-7 or B-20 stands. So the sign tells you that you have right of way, but the Road Traffic Act still requires you to exercise particular caution when approaching a junction - a driver on the minor road may not notice you, especially since someone turning from the left onto your road has to cross your lane. So you look to the left and are ready to brake. Warning signs, including A-6c, are placed 150-300 m before the junction on roads where the speed limit is above 60 km/h, and up to 100 m before it on other roads; a different distance is shown by plate T-1.

Legal basis: § 5 para. 2 and § 3 para. 2 and 4 of the Regulation on road signs and signals; Art. 25 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym)