lightning conductors and red parking lights need to be installed on the roofs of tall buildings and industrial halls due to collis

accident air airplane airplanes airport and boat building buildings cloudy cold collis collision collisions conduct conductor conductors construction contrast corner day due flat fog gray hall halls helicopter helicopters heliport high industrial installed installing light lighthouse lightning lights metal near need new night outdoor parking point pole position rainy red roof roofs safe safety sea sky skyscraper steel storm tall top view visibility