RUNWAY LIGHTING

atg airports offer a wide range of airfield lighting solutions including runway lighting and runway edge lighting.  Click an image below to see more information about specific models.

Runway Lighting

There are many different designs with regards to runway lighting, and the applications that are required is dependent on the category of the airfield, whether it be CATI, CATII, CATIII.    Also  the position at which the lighting fixtures are installed will regulate whether inset type, or elevated products are used.

Runway edge lights are generally steady white lights that show the edge or the usable part of a runway. On instrument runways, the white lights will change to yellow when approaching the end of the runway length , and then they turn red as the aircraft reaches the end of the runway.

There are several categories of runway edge lighting, high-intensity (HIRL), medium-intensity (MIRL) or low-intensity (LIRL) all of which are designed to meet different criterial of international standards.

Runway Centerline Lighting System (L-850A) – On precision runways, a runway centerline light system is installed, with white lights spaced at  pre-determined intervals on the centerline of the runway. Towards the end of the runway the coding of the lights change to alternate red and then all red, thus indicating to pilots, the  length of runway remaining.

Touchdown Zone (TDZ) (L-850B) Lighting must be provided on runways available for use in low visibility conditions so as to provide enhanced identification of the touchdown area. The method of provision is specified in ICAO Annex14 and the lighting must extend from the landing threshold for either 900 meters or to the midpoint of the runway, whichever is the least

Runway Edge Lights

Runway edge lights may be high or low intensity dependent upon the conditions for which the airport operates. The fixtures will generally be elevated types but inset fittings (IR850C or ZA483) will be used at runway and taxiway intersections and runway access points. Elevated fittings (IR862 or ZA163) generally provide a bi‑directional high intensity characteristic and an omni‑directional low intensity characteristic from a combined array.

Runway edge lights are usually white except on a precision approach runway without centreline lighting, yellow lights should be installed on the last 600m. Where a threshold is displaced, the lights between the beginning of the runway and the displaced threshold should show Red in the approach direction.

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