In 150-300m after the sign there is a narrowing of the road on the right side of 100m.✓Bonne réponse
100m after the sign the narrowing of the road on the right side begins.
Explication
The road-narrows warning has a 100-metre length plate, while warning signs outside settlements are placed 150–300 metres before the hazard. Thus the narrowing begins after the advance interval and continues for 100 metres; treating 100 metres as the distance to its start confuses length with advance distance.
