![]() ![]() They’re cheaper to buy than LEDs, but don’t last as long and have higher operational costs.Īirfields in colder regions of the world often prefer incandescent bulbs because they have a neat side effect. Incandescent lights are usually found at older or small airfields. Taxiway lights can be either LEDs or incandescent bulbs. While the primary cause of the Tenerife disaster was a miscommunication between the aircraft and Air Traffic Control, recent advances in taxiway lighting are designed to prevent exactly this type of accident by increasing pilot situational awareness. The KLM pilots had no idea that the runway was still occupied. The taxiing Pan Am 747 was supposed to exit the runway before the KLM flight took off, but the pilots could not find the taxiway due to extremely low visibility. The resulting collision led to 583 deaths. ![]() A KLM Boeing 747 accelerating on its takeoff run hit another taxiing Boeing 747 in Tenerife, Spain. The deadliest aviation disaster of all time did not happen in flight, it happened on the ground in low visibility. Situational awareness is critical even when the aircraft is on the ground. You’ll also avoid collisions with airport structures such as ramp lights or hanger walls. Keeping the nosewheel on the centerline ensures clearance between parked aircraft and the taxiing aircraft’s wingtips and tail. Many aircraft are so long that their wings are not visible from the cockpit. All ramp areas have designated taxi routes which are designed to maintain clearance between taxiing aircraft and obstacles on the ground. Terminal areas and aprons are often brightly lit with floodlights, however, pilots are not allowed to maneuver the aircraft freely through the ramp. Taxiway lighting isn’t only useful at night, it’s also helpful during the daytime when the airport is experiencing inclement weather with low visibility. Taxiway lighting helps pilots have a clear idea of where the centerline and the edges of the taxiway are. You can imagine the consequences of an approaching aircraft mistakenly lining up with a taxiway instead of a runway. The contrast between the runway and taxiway lighting is deliberate. Taxiway lighting is a lot more subdued than runway lighting but is equally intricate in its layout and design. The active runway will also be lit up like a Christmas tree. If you fly over an airport at night, you’ll see the terminal and apron areas brightly lit with floodlights. ![]()
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