Why Avaition Lamp is mandatory requirement in high rise buildings?National Building code Guidelines! 

What is meant by Aviation Lamp or Aviation obstacle lights (AOL) &Why it is required in High rise Building?
What are the Types of Aviation lights ?
How to select Location of the AOLs for standalone buildings
As per NBC2016, the guidelines to be followed as per ICAO (International Civil Aviation Organization)given in Annex-14, volume-1 Aerodrome Design & Operations.
There are three types of aviation lights available -
a) Low intensity, b) Medium Intensity & c) High Intensity