What color does the runway edge light system display until the last 2,000 feet or half of the runway?

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The runway edge light system is crucial for safe operations, especially during takeoff and landing. The white lights are utilized to mark the edges of the runway for pilots, providing clear visual guidance. This distinctive white color helps to enhance visibility for aircraft approaching or taking off from the runway.

As the aircraft approaches the last 2,000 feet or half of the runway, the white lights are indeed used to indicate safe landing conditions. Once the aircraft gets closer to the end of the runway, the lighting system transitions to signal the impending end of the usable runway, but until that point, the consistent presence of white lights ensures that pilots maintain proper orientation and spatial awareness.

Understanding the function of runway edge lights helps pilots navigate effectively, ensuring that they can distinguish the runway from surrounding areas, especially in low visibility or nighttime conditions.