Question juridique clé
Whether the temporary 30 km/h signage on Dorfstrasse in Kappel was valid and binding despite alleged procedural defects.
Solution extraite
The speed restriction was at most defective, not void; under Swiss traffic law, even unlawfully issued speed signals remain binding unless the defect is exceptionally serious and obvious.
Motifs extraits
The court held that traffic signs creating trust must generally be obeyed. Any unlawfulness in the municipal order did not amount to nullity, since the defect was neither obvious nor readily recognizable to road users and traffic safety would be undermined by allowing disregard.