Before driving into the track-way directly before the vehicle in front, are you obliged to make sure that there is no rail vehicle approaching?

Why?

Before driving onto the tracks, every driver must personally check that no rail vehicle is approaching. The car ahead does not remove this responsibility and may obstruct your view. The B-20 STOP sign shown also requires you to stop before the crossing.

Art. 28 ust. 1 Prawa o ruchu drogowym; § 21 ust. 1 i 4 rozporządzenia w sprawie znaków i sygnałów drogowych