What color are taxiway edge lights, and why?

• A. Red for hazard identification
• B. Yellow for ground caution
• C. Blue to differentiate from runway lights
• D. Green for navigation guidance

Answer: (C)

Taxiway edge lights are blue to differentiate them from runway lights. This color coding is critical in ensuring that pilots can easily distinguish between taxiways and runways, especially during low visibility conditions or night operations. The blue lights outline the edges of taxiways, guiding aircraft on the ground safely and effectively. This differentiation helps to reduce the risk of runway incursions and enhances overall airport operational safety.

Other colors used in aviation lighting, such as red and yellow, serve different purposes. Red lights are typically used to indicate hazards or to signal that an area should not be entered, while yellow lights are often employed for caution in areas such as construction zones. Green lights, on the other hand, are generally associated with runway lighting, indicating the approach path for landing. Understanding the specific use and meaning of lighting colors is essential for effective airport operations and safety management.