Aviation obstruction lighting plays a vital role in ensuring the safety of air traffic at night or in low visibility conditions. It is a type of lighting system that is installed on tall buildings, antennas, microwave towers, and other tall structures. The purpose of obstruction lighting is to make the structure visible to pilots, reducing the risk of collision.

The Federal Aviation Administration (FAA) regulates the use of obstruction lighting in the United States. The FAA requires obstruction lighting on any structure that is taller than 200 feet above ground level. The lighting must be installed at the top of the structure and must be visible from different angles in the sky.

There are three types of aviation obstruction lighting: medium intensity, high intensity, and low intensity. Low-intensity lights are used on structures that are less than 200 feet tall, while medium and high-intensity lights are used on taller structures.

The intensity of the lights is measured in candelas per square meter (cd/m2). The FAA specifies the minimum required intensity for each type of obstruction lighting. For example, low-intensity lights must have a minimum intensity of 32 cd/m2, while high-intensity lights must have a minimum intensity of 2000 cd/m2.

Obstruction lighting also comes in different colors. Red obstruction lights are used for structures that are over 200 feet tall, while white lights are used for structures that are less than 200 feet tall. Red obstruction lights are also used on structures that are close to airports, to indicate that the structure is hazardous to air traffic.

In conclusion, aviation obstruction lighting is an essential safety feature for tall structures that can pose a threat to air traffic. The FAA sets strict guidelines for the installation and use of obstruction lighting, which ensures that the lights are visible to pilots in all weather conditions. By complying with these regulations, we can ensure the safety of air traffic and help prevent accidents.

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