Can you drive through the level crossing without stopping after the vehicle in front of you has started off?

Why?

In this situation, stopping behind the red car does not replace stopping at the proper place for the B-20 STOP sign. Once the car ahead moves, pull forward to that place, stop again and check for yourself that it is safe to cross the tracks.

§ 21 ust. 1, 2 i 4 rozporządzenia w sprawie znaków i sygnałów drogowych