Where: On any road.
Purpose: To inform you that you have the right of way at the intersection ahead.
Action: Do not slow down unnecessarily, but make sure that other traffic will yield.
Park and ride
Where: At the entrance to a parking area.
Purpose: To inform you of the existence of a park-and-ride terminus that has a bus or train service.
Action: Stop in this parking area if you want to reach your destination using other transport.