At this place, can you change from the currently occupied traffic lane to the left lane?

Why?

At your current position, a broken line separates your lane from the lane on the left, so you may cross it. Change lanes with particular care, signal beforehand and give way to vehicles already travelling in the left lane.

Art. 22 ust. 1, 4 i 5 Prawa o ruchu drogowym; § 86 rozporządzenia w sprawie znaków i sygnałów drogowych