Upon seeing this warning sign, should the tram driver expect vehicles entering on to the track?

In the photo we are driving a tram on tram tracks running along the roadway, and next to the track there is a yellow warning sign for tram drivers, used on the tram network, with the symbol of a traffic lane entering the tram tracks; under it there is a 30 km/h speed limit sign. Seeing this sign, the tram driver should expect vehicles entering the tracks - the answer is YES.

The sign warns the tram driver that further on, motor vehicle traffic runs along or across the tram tracks - cars may enter the tracks in front of the tram. This sign is not in the Regulation on road signs and signals, but its meaning is clear: you exercise particular caution. A car driver who is on the part of the roadway used by trams must make way for the tram, but the tram driver cannot assume that every driver will do so. You reduce speed, keep your distance and are ready to stop the tram.

Legal basis: Art. 16 para. 6 and Art. 4 of the Road Traffic Act (Prawo o ruchu drogowym)