Red runway status lights used at large U.S. airports such as Chicago O’Hare International and JFK indicate runway status, thereby increasing situation awareness for pilots and vehicle operators. The lights are set in-pavement and illuminate when it is unsafe to enter, cross or begin takeoff.
Everything Explained: Runway Status Lights
Key Takeaways:
- Major U.S. airports utilize automated red in-pavement runway status lights (Runway Entrance Lights, Takeoff Hold Lights, Runway Intersection Lights) to enhance pilot and vehicle operator awareness, illuminating when it is unsafe to enter, cross, or begin takeoff due to other traffic.
- These systems operate automatically using radar surveillance: Runway Entrance Lights (REL) warn pilots at taxiway hold lines, and Takeoff Hold Lights (THL) alert aircraft in takeoff position.
- The Final Approach Runway Occupancy Signal (FAROS) further enhances safety by causing the PAPI lights to flash for arriving aircraft when the runway is occupied, requiring pilots to contact ATC and potentially execute a go-around if the indication persists below 300 feet AGL.
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