Intending to turn left at this junction, have you assumed the proper traffic lane?

Why?

Before turning left on a two-way road, you should position yourself near the centre of the carriageway. The final frames show you in that position, on the tram tracks near the road's centre. When using the tracks, you must make way for an approaching tram.

art. 22 ust. 2 pkt 2 i art. 16 ust. 6 Prawa o ruchu drogowym