What should be your immediate action if you become disoriented in low visibility at an unfamiliar airport?

When faced with disorientation in low visibility at an unfamiliar airport, determining the color of the centerline is crucial as it guides you safely on the runway or taxiway. The centerline markings provide indications of where your aircraft should be positioned. For instance, a continuous yellow centerline indicates taxiways, while white markings may indicate runway centerlines. Understanding these markers helps you make informed decisions about your location and intentions, thereby enhancing situational awareness.

While other actions like stopping the aircraft or contacting ATC could be reasonable responses in different contexts, they may not directly address the immediate need to regain orientation. Calling ATC and declaring an emergency is also a serious action that should be taken in critical situations, but initially, assessing your situational awareness by identifying the centerline color is ultimately more critical at the onset of disorientation. Thus, focusing on visual references like the runway and taxiway markings is the best first step.