Which cars should be more cautious when approaching a roundabout?

When approaching a roundabout, cars coming from the right should exercise more caution because they are entering the circulatory roadway where vehicles already in the roundabout have the right of way. In many jurisdictions, including the Cayman Islands, the standard rule is that traffic already in the roundabout has the priority. Therefore, vehicles coming from the right must ensure that they yield to any traffic already circulating in the roundabout. This awareness is critical for maintaining smooth traffic flow and preventing accidents.

Other factors that contribute to this caution include the need to assess the speed and proximity of vehicles in the roundabout before safely merging into the flow of traffic. Properly yielding to traffic on the right helps prevent collisions and ensures that roundabouts function efficiently.