Règles de la route

When a PEI school bus flashes yellow (amber) lights ahead of stopping, you should:

Panneau routier de Île-du-Prince-Édouard — Slow and prepare to stop — the bus is about to stop and display red flashers
Afficher la réponse et l'explication
Bonne réponse : B. Slow and prepare to stop — the bus is about to stop and display red flashers

Early slowing gives you time to come to a safe stop when the red flashers and stop-arm activate.