Panneaux routiers

A yellow rectangular plate showing a speed number attached beneath a curve warning means:

Panneau routier de Île-du-Prince-Édouard — Advisory speed for the curve ahead — recommended maximum under good conditions
Afficher la réponse et l'explication
Bonne réponse : A. Advisory speed for the curve ahead — recommended maximum under good conditions

Advisory speeds are calibrated so an average car can traverse the curve safely; lower is always safer in bad weather.