Runway and taxiway lights are color-coded to serve specific purposes. Runway edge lights are white (with yellow at the near end), centerline lights are white (with red and white near the end and red at the very end), and threshold lights are green (at the start) and red (at the end). Taxiway lights include blue edge lights and green centerline lights. Other specific lights include flashing white REILs, flashing amber runway guard lights, and red stop bar lights.

PAPI (Precision Approach Path Indicator) lights are a set of four lights positioned beside the runway to help pilots maintain the correct glide slope. The lights display white or red depending on the aircraft’s altitude. A combination of two white and two red lights indicates that the aircraft is on the correct glide path. More white lights indicate the aircraft is too high, while more red lights signal that the aircraft is too low.

Taxiway lights help pilots navigate safely on the ground. Blue edge lights outline the taxiway, and green centerline lights guide the aircraft along the center. Yellow amber clearance bar lights indicate holding positions or intersections, while red stop bar lights prevent aircraft from entering a runway without clearance. Flashing amber runway guard lights alert pilots when they are approaching a runway.

Runway End Identifier Lights (REILs) are flashing white lights positioned at the ends of the runway. Their purpose is to make the runway threshold more visible from a distance, particularly in low-visibility conditions, such as during night-time operations or poor weather, helping pilots spot the runway’s end early during their approach.