At night, what color are the edge lights on the taxiways?

Taxiway edge lights are designed to help pilots and vehicle operators navigate safely on the airfield, especially at night. The correct color of the edge lights on taxiways is blue. This specific color is used to clearly delineate the edges of the taxiways from the surrounding areas, thereby enhancing visibility and safety. The blue lights serve as an important visual reference for drivers to remain on the designated paths and avoid any potential hazards.

While other colors are associated with different purposes on the airfield, blue specifically indicates the edges of taxiways, making it crucial for nighttime operations. Green lights, for instance, are typically used for runway threshold markings, while red lights indicate the edges of runways. Understanding the function of these colors is essential for maintaining situational awareness in an airport environment, especially under low-light conditions.