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  2. Runway edge lights - Wikipedia

    en.wikipedia.org/wiki/Runway_edge_lights

    The majority of runway edge lights are clear or white, [2] but there are some exceptions to provide additional information to pilots in certain circumstances. When an instrument runway lighting is designed, the last 600 metres (2,000 ft), or one-half of the runway length available (whichever is less), are bi-directional.

  3. Approach lighting system - Wikipedia

    en.wikipedia.org/wiki/Approach_lighting_system

    Approach lights at Jyväskylä Airport, Finland The approach lighting system of Bremen Airport Approach lighting at Love Field, Dallas. An approach lighting system (ALS) is a lighting system installed on the approach end of an airport runway and consisting of a series of lightbars, strobe lights, or a combination of the two that extends outward from the runway end. [1]

  4. Precision approach path indicator - Wikipedia

    en.wikipedia.org/wiki/Precision_Approach_Path...

    The PAPI can be seen to the right (non-standard) side of the runway. The aircraft is slightly below the glideslope. A precision approach path indicator (PAPI) is a system of lights on the side of an airport runway threshold that provides visual descent guidance information during final approach.

  5. Visual approach slope indicator - Wikipedia

    en.wikipedia.org/wiki/Visual_approach_slope...

    The visual approach slope indicator (VASI) is a system of lights on the side of an airport runway threshold that provides visual descent guidance information during final approach. These lights may be visible from up to 8 kilometres (5.0 mi) during the day and up to 32 kilometres (20 mi) or more at night.

  6. Runway - Wikipedia

    en.wikipedia.org/wiki/Runway

    Runway centerline lighting system (RCLS) – lights embedded into the surface of the runway at 50 ft (15 m) intervals along the runway centerline on some precision instrument runways. White except the last 900 m (3,000 ft): alternate white and red for next 600 m (1,969 ft) and red for last 300 m (984 ft).

  7. Runway status lights - Wikipedia

    en.wikipedia.org/wiki/Runway_status_lights

    Takeoff Hold Lights (THL): Red unidirectional lights in a double-longitudinal row, located parallel to runway centerline lighting. Runway Intersection Lights (RIL): Similar to THLs, but located on a runway, prior to intersection with another runway. On taxiways, Runway Entrance Lights (RELs) show that runways are not safe to enter or cross. On ...