Art. 50 Ordinance of September 5, 1979, on Road Signage (OSR) - Locality Signs
Art. 50 OSR · Locality Signs
Locality signs with white lettering on a blue background ("Start of Locality on Main Road"; 4.27; "End of Locality on Main Road"; 4.28) are placed on main roads. Locality signs with black lettering on a white background ("Start of Locality on Secondary Road"; 4.29; "End of Locality on Secondary Road"; 4.30) are placed on secondary roads. There are no locality signs on motorways and expressways.
The front of the locality sign functions as the signal "Start of Locality on Main Road" or "Start of Locality on Secondary Road"; it displays the name of the locality and, below it, when the locality is situated in the border area between two cantons, the abbreviation of the canton on whose territory the sign is located.
The reverse of the locality sign functions as the signal "End of Locality on Main Road" or "End of Locality on Secondary Road"; it displays, in the upper space, the name of the next agglomeration and, in the lower space, the name of the nearest destination center as well as its distance. If a bifurcation occurs after the sign, two destination centers may be indicated.
The signals "Start of Locality on Main Road" or "Start of Locality on Secondary Road" will be placed where the zone of dispersed dwellings begins; they must not be placed after the signal indicating the beginning of the general speed limit within localities (Art. 22, para. 3).
Where two localities meet, the locality sign represents the signal "Start of Locality on Main Road" or "Start of Locality on Secondary Road" on both sides.
To designate mountain passes, locality signs should be used that display, on both sides, the name of the pass, completed if necessary by the words "Summit of the Pass" and the indication of altitude.