Panneaux routiers

A sign with a left-pointing arrow covered by a red circle and slash means:

Panneau routier de Ontario — Do not turn left at this intersection
Afficher la réponse et l'explication
Bonne réponse : A. Do not turn left at this intersection

'No left turn' forbids the left turn at that intersection entirely, regardless of traffic or signal state. These signs typically protect sightlines or prevent conflicts at busy intersections; following them reduces collision risk.