Aviation Obstruction Lights on Tall Buildings
High structures, skyscrapers, high-rise buildings, tall buildings and residential towers either temporary or permanent, which has the potential to endanger aviation in navigable airspace or has the potential to interfere with the operation of navigation, should be lighted with aviation obstruction lights in compliance with ICAO Annex 14 regulations.
BASIC RULES
The number of light levels recommended depends on the height of the structure;
The number and arrangement of light units at each level should be placed so the lighting is visible from every angle in azimuth;
Lights are applied to display the general definition of an object or a group of buildings;
Width and length of buildings determine the number of aircraft warning lights installed at the top and at each light level.
LIGHTS SPECIFICATIONS
Low intensity aircraft warning lights should be used for structure with H ≤ 45 m during night time, if those are considered inadequate, than medium – high intensity lights should be used.
Medium intensity aircraft warning lights type A,B or C should be used to lit extensive object (group of buildings or tree) or structure with 45 m < H ≤ 150 m.
Note: Medium intensity aircraft warning lights, type A and C should be used alone, whereas medium intensity lights, Type B should be used either alone or in combination with LIOL-B.
High intensity aircraft warning type A, should be used to indicate the presence of an object if its H > 150 m and an aeronautical study indicates such lights to be essential for the recognition of the object by day.
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