Which sign primarily indicates the location of an aircraft on the taxiway?

The sign that primarily indicates the location of an aircraft on the taxiway is the Taxiway Location Sign. This sign is specifically designed to inform pilots and vehicle operators of their exact position on the taxiway system. The typical Taxiway Location Sign features the letter of the taxiway and possibly a number identifying the intersection or location along the taxiway.

Understanding the importance of such a sign is crucial for maintaining safety and operational efficiency on the airside. Knowing where an aircraft is located helps prevent collisions and ensures that all operations are conducted in compliance with air traffic control instructions. The location sign serves as a vital reference point, particularly in low visibility conditions.

In contrast, the other sign types serve different purposes: the Taxiway Directional Sign guides pilots on the direction to follow to reach a destination, whereas the Runway Location Sign indicates the aircraft's position relative to runways. The Mandatory Instruction Sign communicates specific commands or actions that must be followed, such as "Hold Short" instructions. Each of these signs plays a role in aviation safety, but the Taxiway Location Sign is the one that explicitly denotes an aircraft's position on the taxiway.