In this situation, can you make a U-turn at the intersection?

In the video you are driving in town in the left lane with a painted arrow P-8b for turning left, there is a navy blue car waiting in front of you, and above the lane there are directional traffic lights S-3 (with arrows), which after red show a green arrow to the left. The lanes of the opposite direction are separated by a barrier. Since traffic in your lane is controlled by directional traffic lights S-3 with a left arrow, you are only allowed to turn left - a U-turn is not allowed. The answer is: no.

The Regulation on road signs and signals states that the signals of directional traffic lights S-3 apply to drivers travelling in the directions shown by the arrow, and that an arrow on the roadway allowing a left turn from the far left lane also means permission to make a U-turn, unless this is prohibited by sign B-23 or traffic is controlled by directional traffic lights S-3. So the green left arrow means a collision-free left turn, but not a U-turn - a car making a U-turn would cross the path of vehicles that may have a green light at the same time. If you want to make a U-turn, you turn left and look for a place further on.

Legal basis: § 97 para. 1 and 3 and § 87 para. 1 and 2 of the Regulation on road signs and signals; Art. 22 para. 6 point 4 of the Road Traffic Act (Prawo o ruchu drogowym)