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?

In the photo you are driving along a forest road behind a red car, which stops before a level crossing marked with St Andrew's cross G-3 and sign B-20 "STOP". Before you drive onto the tracks directly behind it, you must make sure yourself that no rail vehicle is approaching. The answer is: yes.

The Road Traffic Act requires every driver to make sure before driving onto the tracks that no rail vehicle is approaching, and to exercise particular caution when approaching and crossing a level crossing; sign B-20 before the tracks additionally requires you to stop. The fact that the driver in front of you checked the tracks and moved off does not release you from this duty - within a few seconds the situation may have changed. You stop at the STOP sign, look both ways and only then do you drive across.

Legal basis: Art. 28 para. 1 of the Road Traffic Act (Prawo o ruchu drogowym); § 21 para. 1 and 4 of the Regulation on road signs and signals