What do blue taxiway lights indicate?

Blue taxiway lights are specifically designed to mark the edges of taxiways. This color coding is essential for pilots and ground vehicle operators to navigate safely on the airfield. During low visibility conditions, the visibility of blue lights helps distinguish the taxiway from the runway and other areas, ensuring that vehicles stay on the correct path and avoid potential hazards. Understanding the purpose of these lights is critical for ensuring the safe and efficient movement of aircraft and vehicles on the airport surface.

The other options each refer to different safety markings: runway edge lights are distinct in color and serve a separate function, stop locations are indicated by other specific markings, and construction area markers are used for temporary conditions and would not exclusively use blue lights.