Which of the following actions is NOT appropriate when navigating through airport traffic?

Driving without adherence to posted speed limits is not appropriate when navigating through airport traffic because speed limits are established to ensure the safety of all individuals on the premises, including pedestrians, drivers, and airline employees. Airports are high-traffic areas with unique hazards, and following speed limits helps prevent accidents and provides adequate reaction time to unexpected situations.

In contrast, constantly checking mirrors for surrounding vehicles, yielding to traffic when merging lanes, and using turn signals when changing lanes are all critical safe driving practices that promote awareness and facilitate smoother traffic flow. These actions help drivers stay informed about their surroundings and communicate their intentions, which is essential in busy environments like airports.