At a roundabout, which traffic has priority?

At a roundabout, traffic on the roundabout has priority over traffic entering it. The design of roundabouts is intended to promote a continuous flow of traffic, reducing the likelihood of collisions and improving overall safety. When approaching a roundabout, drivers must yield to vehicles that are already circulating within it. This rule helps to prevent confusion and ensures that traffic moves smoothly without unnecessary stops or delays.

While some other options might seem plausible, they do not align with the established rules of right-of-way at roundabouts. Emergency vehicles have specific protocols when navigating through traffic but typically do not change the priority rules of cyclists, motorists, and pedestrians. Understanding this priority is crucial for safe driving practices at roundabouts, as it helps drivers anticipate the actions of others and respond accordingly.