What is the primary function of a segmented circle at an airport?

The primary function of a segmented circle at an airport is to serve as an indicator system for runway use. A segmented circle is composed of a circle with sections that provide visual cues to pilots regarding the traffic patterns and the status of the airfield operations. It consists of different segments or markers that help pilots understand which runway is in use, and how to enter and exit the traffic pattern.

While it’s important to maintain awareness of the surrounding area, the primary purpose of the segmented circle is to convey critical information about runway operations, enhancing situational awareness for pilots, especially in the absence of other visual guidance. This aids in promoting safe and efficient operations, ensuring that pilots can make informed decisions while navigating around the airfield.