A road narrowing sign is a traffic sign that alerts drivers that the road ahead becomes narrower, either on one side or on both sides. This change can make passing more difficult and may require drivers to slow down, adjust their position on the road, or be prepared to yield in tight situations. Its purpose is to warn drivers early so they can approach the narrowing safely and avoid conflicts with oncoming traffic.
Entry of village Saint-André with a road narrowing warning. (Savoie, France) © Wikimedia.org/Florian Pépellin, CC BY-SA
Traffic rules
