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  2. Runway edge lights - Wikipedia

    en.wikipedia.org/wiki/Runway_edge_lights

    High intensity runway lights (HIRL) Medium intensity runway lights (MIRL) Low intensity runway lights (LIRL) [1] Many HIRL and MIRL systems have variable intensity controls, whereas the LIRLs normally have one intensity setting. At airports where there is a control tower, the tower will manage the lights to account for visibility and pilot ...

  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. Pilot-controlled lighting - Wikipedia

    en.wikipedia.org/wiki/Pilot-controlled_lighting

    Pilot-controlled lighting (PCL), also known as aircraft radio control of aerodrome lighting (ARCAL) or pilot-activated lighting (PAL), is a system that allows aircraft pilots to control the lighting of an airport or airfield's approach lights, runway edge lights, and taxiways via radio.

  6. Instrument landing system - Wikipedia

    en.wikipedia.org/wiki/Instrument_landing_system

    ILS planes. An instrument landing system operates as a ground-based instrument approach system that provides precision lateral and vertical guidance to an aircraft approaching and landing on a runway, using a combination of radio signals and, in many cases, high-intensity lighting arrays to enable a safe landing during instrument meteorological conditions (IMC), such as low ceilings or reduced ...

  7. 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.

  8. 'Year of intensity': Meta employees react to plans to cut low ...

    www.aol.com/intensity-meta-employees-react-plans...

    Meta said in internal memos that it would cut 5% of workers, focusing on its lowest performers. Staffers asked how the cuts would work. One criticized the announcement after a "pretty rough" week.

  9. 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 ...