Surface-level heliports are heliports located on the ground and are characterized by large space usage. The typical surface-level heliport contains several helipads (smooth and flat areas devoted to helicopter landing and take offs) and it's usually located in an area near a conventional airport, but is typically in a lesser-used area. Visual aids for night operations are used to help guide incoming helicopters to land safely within the heliport parameter.
Tall buildings, high rise buildings, skycrapers and tall structures are hazardous to aviation safety because of their height and location and should be marked with obstruction lights according to international regulations.
There is no single standard defining minimum mandatory requirements governing design and installation of obstruction lighting; on the other hand the most common and widespread regulations are ICAO's and FAA's.
Aircraft warning light systems for explosion-proof are lighting devices used to make structures more visible to aircrafts, during both daytime and nighttime. Flare stacks, chimneys, cranes, storage tank, oil & gas rigs and offshores are hazardous to aviation safety because of their height and location and should be marked with aircraft warning lights according to the international regulations.
Telecommunication towers are, typically, tall structures designed to support antennas for telecommunications and broadcasting, including television.
Telecommunication towers, transmission towers, broadcasting towers and tall structures, are hazardous to aviation safety because of their height and location and should be marked with obstruction lights according to international regulations.