if a driver decreases driving speed or stops vehicle in front of the pedestrian crossing in order to enable pedestrians to cross the road, drivers of other vehicles driving
in the same direction are
a) obliged to give audible warning sings during the driving through such crossing at a municipality,
b) also obliged to reduce driving speed or stop vehicle; it is not applicable for the driver of a tram,
c) also obliged to reduce driving speed, only if persons with serious health disability or old persons are going through the crossing.
