What is the color used for taxiway centerline lights in some airports?

Taxiway centerline lights are designed to guide pilots along the taxiway, particularly during low visibility conditions. The standard color for taxiway centerline lights is green. This color is utilized because it provides a clear visual cue to pilots, effectively indicating the center of the taxiway and aiding in navigation as aircraft move between runways and other airport facilities.

The use of green lights helps to reduce the risk of misalignment and potential runway incursions, ensuring that aircraft remain safely on their designated paths. In contrast, other colors, such as blue, are typically associated with taxiway edge lights, while red lights are used to signal restrictions, and yellow may indicate various warning signs or areas. The adoption of green for taxiway centerlines is a recognized standard across different aviation authorities, enhancing safety and efficiency in airport operations.