What role do road signs play in roundabouts?

Road signs in roundabouts are crucial for ensuring that drivers are aware of the traffic conditions and any potential hazards they may encounter before entering. They often serve the purpose of warning drivers about the roundabout and informing them to yield to traffic already in the circle. This warning aspect is essential for smooth traffic flow and for preventing accidents, as it helps prepare drivers to navigate the roundabout safely and effectively.

While road signs also provide other important functions—such as directing traffic flow, indicating speed limits, and ensuring pedestrian safety—the primary role of warning signs is to alert drivers to the upcoming roundabout and the rules that apply. This ensures that drivers can make informed decisions and adjust their speed or approach as necessary before entering the intersection.