In this situation, can you enter the railway crossing?

In the video, you are approaching a level crossing in winter; a silver car is coming off the crossing from the opposite direction, and the barrier on your right is just coming down - in the following shots the arm moves from vertical to a sloping position. Since the barriers have started to come down, you are no longer allowed to drive onto the level crossing, even if the arm has not yet closed the road. The answer is: no.

The Road Traffic Act prohibits driving around lowered barriers or half-barriers and driving onto a level crossing if they have started to come down or have not finished rising. A barrier that is coming down tells you that the train is already close, and the train passing through may take a few dozen seconds. You stop before the barrier, without driving under the arm, and wait until the train has passed, the barriers have fully risen and the red signal has gone out.

Legal basis: Art. 28 para. 3 point 1 of the Road Traffic Act (Prawo o ruchu drogowym)