Question juridique clé
Whether the appellant could invoke a good-faith mistake of fact regarding the applicable speed limit under Art. 16 LCR.
Solution extraite
Yes. Given the character of the road as a wide thoroughfare, the appellant could in good faith assume that the applicable limit was 80 km/h rather than 50 km/h.
Motifs extraits
The physical layout of the place could reasonably mislead a driver as to the posted urban speed restriction, so the factual mistake was excusable and could affect the sanction.