Règles de la route

Before changing lanes on a PEI road, you should:

Panneau routier de Île-du-Prince-Édouard — Check mirrors, signal in advance, shoulder-check the blind spot, then change when clear
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Bonne réponse : B. Check mirrors, signal in advance, shoulder-check the blind spot, then change when clear

Blind-spot collisions are common; the full sequence eliminates them by visual confirmation beyond mirrors.