Final answer:
When entering and exiting a roundabout, the correct action is to always keep right, to ensure safe merging with the circulating traffic flow in the roundabout.
Step-by-step explanation:
When entering and exiting a roundabout, you must always keep right. When entering and exiting a roundabout, the correct action is to always keep right, to ensure safe merging with the circulating traffic flow in the roundabout. The roundabout is designed to facilitate smooth traffic flow where drivers merge into the circle from the right-hand side and exit to the right.
Unlike scenarios such as a car rounding a bend at constant speed or a race car taking the inside path to maintain higher speed, the principles for using a roundabout focus on safety and efficiency rather than speed optimization. For those driving in countries where vehicles are driven on the right-hand side of the road, keeping right ensures that they follow the direction of the traffic in the roundabout and safely merge with the circulating flow.