Yellow Caution Zone 💡 ✈️
As it pertains to the runways, a region of runway or a glide-slope marked by yellow or amber lights. The last 2000 ft, or one-third of some runway edge light systems, are yellow instead of white for the rest of the runway to indicate a yellow caution zone. If the runways have yellow lights as normal lights, then the caution zone has red lights for the last 1000 ft.
