It means a huge energy consumption for airport illumination. Average horizontal illumination for areas between aircraft stands and apron (parking area, service roads) should be 10 lux.Ī large airport may have over 30,000 lights and most of they are on all day long.Optimal uniformity ratio of apron lighting is 4:1.(except for the areas with service functions). The average horizontal illumination on the apron should not less than 10 lux.To achieve appropriate apron lighting, ICAO (International Civil Aviation Organization) stated the apron lighting requirements. Nowadays, LED lights have shields to reduce the annoying glare and trespass lighting. ![]() Trespass lighting may distract tower personnel, resulting wrong guidance. Glare, however, will decrease the visibility of pilots, causing sudden blindness to directional and guiding marks. They are installed at least 15m above the ground. LED flood lights are generally used at apron due to high output and ability to illuminate large area. Workers need ample lighting to load cargo. Passenger need suitable lighting to guide their way for embarkation and debarkation. Pilots need comfortable lighting to taxi the plane. Sufficient and uniform lighting without glare and trespass is required at apron. Lighting plays an important role in ensuring their safety and security. Pilots, workers, and passengers are all engaged in this areas. ApronĪpron is one of the busiest applications in airport. Lights for taxiway are omnidirectional but not dazzling. Lights in different color transfer information for pilot to reach right traffic guidance. When a plane going to landing or takeoff, lighting on taxiway edge is blue in color while taxiway center in green. Extended distance below 75cm of the pavement surface is acceptable. Requirement of the location of edge lights at taxiway is less strict than runway. A distance about 6m to 7.5m is appropriate for the straight section while 3m to 3.6m for the curves. Space of lights affects the visual effects as well. Clear marks are not only beneficial to classify runway and taxiway but also reduce the risk of accident. Intersections of taxiway, taxiway-runway, and taxiway-apron should also be easily identified. Therefore, taxiway should be easily clarified from runway and apron through different lighting arrangements, or pilots may confused with the proper track between runway and apron. ![]() Taxiway is located closely to runway and apron. Adequate lighting and guidance are critical along the taxiway. Though airplanes are moved in a low speed at taxiway, serious accidents are also possible to occur under poor visibility condition. Since the contrast of peripheral visual and central visual information, central area present black in color for pilots. Pilots concentrate their visual field on the center-line while the edge lights of the runway has moved far and fast in both sides of peripheral vision. Black hole effect occurs generally when pilots driving on runway. Locations of runway lights are regulated that runway lights can’t protrude more than 1 cm from the surface of the road. But there is an instrument of yellow color at last 400m of the runway to remind pilot to pay attention to the caution zone. Lights for runway are white and of elevated type. Pilots are able to figure out whether they are on the right track to landing or takeoff. Over thousands of lights are installed along the runway that take charge of providing clear environment for pilots, workers, and passengers. Various patterns can be arranged in runway lighting system and pilots can interpret the condition of runway from these lighting patterns easily. ![]() Runway lighting is aimed to offer information including distance, alignment, lateral displacement, and roll for pilots by marking edges, centerline, and edges of the runway. ![]() This post would like to talk about the LED lighting requirements of runway, taxiway, and apron. For outdoor airport environment, runway, taxiway and apron are three applications that highly depend on the assistance of lighting to achieve clearer identification and visibility. Lighting requirements vary from different applications in airport. However, airport lighting is complex due to the wide coverage, myriad zones and high demands. Lighting is one of the significant impacts on safety and security. Except for the uncontrollable weather during the trip, airports have a great deal of responsibility to keep safety and security of both passengers and workers. There are also multiple workers engaged in different jobs to ensure passengers has a nice trip. Tremendous number of passengers fly to their destination through airports regardless day or night.
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