In this situation, are you obliged to yield the right of way to pedestrians when in the traffic zone?

Yes. The car park visible in the picture is an area within a traffic zone where there is no separate carriageway and pavement. In such a situation, according to Art. 26 para. 5 of the Road Traffic Act, pedestrian and vehicle traffic takes place on the same surface, and pedestrians have priority over vehicles. Therefore, the driver must give way to pedestrians.