Why is the segmented circle important during night operations?

The segmented circle is crucial during night operations as it serves as a visual guidance tool for pilots approaching or maneuvering around an airport. It consists of a series of colored panels that provide information regarding traffic patterns, runway usage, and other operational aspects in a highly visual format. This becomes especially significant at night when visibility is limited, and traditional lighting alone may not sufficiently guide pilots. The segmented circle allows pilots to quickly assess which runways are active, understand the flow of air traffic, and execute safe landing or take-off procedures.

While information about fuel supply, personnel locations, and operational hours is certainly important for overall airport operations, these aspects are not visually indicated by the segmented circle in the way that guidance for pilots is. Therefore, the primary importance of the segmented circle during nighttime is its role as a reliable source of visual guidance, enhancing safety and efficiency in flight operations.