Taxiway location signs have a border of which color?

• A. Red
• B. Black
• C. Yellow
• D. White

Answer: (C)

The key idea is how airport signs use color and borders to communicate their type at a glance. Taxiway location signs are designed to tell you exactly where you are on the movement area. They have a black field with yellow letters, and the border around the sign is yellow. That yellow border provides a quick visual cue that this is a location sign, helping you distinguish it from other sign types at a glance and aiding safe, efficient taxiing. Other signs use different color schemes (for example, mandatory signs use red), so the yellow border specifically indicates a location sign.