Embed Notice

@ike @iris you understood it correctly. Circles are direct orders. Blue to be done, red forbidden or restricted to be done. Example symbols for forbidden are bikes, speeds limits, pedestrians, passing other vehicles, weight limits, u-turns, dangerous cargo… and the most extreme is the plain red circle with no symbol at all that forbids all kind of vehicles.
Red diagonal is not used because makes the symbol less visible and does not add meaning to the red circle.