Which of the following actions should be avoided while navigating a traffic circle?

Navigating a traffic circle requires adherence to specific traffic rules to ensure safety and smooth flow of vehicles. Ignoring road signs is particularly problematic because road signs are designed to convey critical information about how to approach and navigate the traffic circle. They provide guidance on yielding, lane usage, and other important factors that influence driving behavior within the circle. Failure to adhere to these signs can lead to confusion, disrupt the flow of traffic, and increase the risk of accidents, making it essential to obey them at all times.

On the other hand, yielding to pedestrians is not only courteous but a legal requirement in most jurisdictions. Maintaining speed is important for smooth traffic flow, as long as it is within the legal limit and adjusted for safety. Using turn signals is vital for communicating intentions to other road users, further ensuring everyone's safety. Thus, ignoring road signs stands out as a critical behavior to avoid when navigating a traffic circle.