Should you exercise extreme caution in this situation?

In the video you are approaching a pedestrian crossing in town marked with sign D-6; two people are walking across the zebra crossing from the left, and just beyond the crossing there is a junction with a priority road. You must exercise particular caution. The answer is: yes.

The Road Traffic Act requires a driver approaching a pedestrian crossing to exercise particular caution, to reduce speed so as not to endanger a pedestrian who is on the crossing or stepping onto it, and to give way to a pedestrian who is on the crossing or stepping onto it. The Regulation on road signs and signals adds that a driver approaching a place marked with sign D-6 must reduce speed so as not to endanger pedestrians who are in these places or stepping onto them. The pedestrians are already on the crossing, so you stop and wait until they have crossed. Particular caution also covers what you cannot see yet: another pedestrian may step onto the crossing, and just beyond it there is a junction with a priority road, so you divide your attention between both pavements and the crossing traffic. Before the crossing, you do not overtake and do not go around a vehicle that has stopped to let a pedestrian cross.

Legal basis: Art. 26 para. 1 and para. 3 point 1 and 2 of the Road Traffic Act (Prawo o ruchu drogowym); § 47 para. 1 and 4 of the Regulation on road signs and signals