What should a driver do when approaching a traffic circle?

When approaching a traffic circle, the correct action is to yield to traffic already in the circle. This rule is essential for maintaining safety and ensuring smooth traffic flow. Vehicles within the circle have the right of way, meaning that drivers entering the circle must allow those already circulating in it to continue without interruption.

Yielding helps prevent collisions and promotes orderly driving, as the circular layout can lead to confusion if drivers do not follow this guideline. It is also important to pay attention to any signs indicating right-of-way rules at that specific traffic circle, which often reinforce this principle.

The other options do not align with safe driving practices. Speeding up to enter the circle can increase the risk of accidents, while turning on hazard lights can create confusion about your intentions. Ignoring signs undermines traffic regulations that are put in place to ensure safety for all road users.