You intend to turn left at the intersection. Are you obliged in this situation to give way to the oncoming vehicle going straight ahead?

Why?

When turning left, you must give way to the oncoming vehicle travelling straight ahead. The green light shown does not remove this duty. While the traffic lights are operating, their signals take precedence over the visible B-20 STOP signs.

art. 25 ust. 1 oraz art. 5 ust. 3 Prawa o ruchu drogowym