What color do runway edge lights typically show on instrument runways for the last 2,000 feet?

Runway edge lights are critical components of airport lighting systems, providing visual guidance to pilots during takeoff and landing, particularly in low visibility conditions. For the last 2,000 feet of an instrument runway, edge lights display yellow.

The use of yellow lights in the final 2,000 feet serves as a cautionary indicator, signaling to pilots that they are nearing the runway's end. This visual cue is particularly useful during approaches, as it helps pilots prepare for a landing or go-around. The concept behind using yellow lights is to enhance safety by ensuring pilots are aware of their proximity to the runway's limits.

Other colors serve different purposes: for instance, runway edge lights typically show white along the length of the runway, and red lights indicate the last part of the runway as well, but not specifically for the final 2,000 feet on instrument runways. The strategic use of yellow lights provides a clear and distinct warning, underscoring the importance of maintaining awareness of the runway's dimensions.