What visibility condition applies to the segmented circle traffic pattern indicators?

The segmented circle traffic pattern indicators are designed to convey important information to pilots regarding traffic patterns around an airport. They are typically visible only during daylight hours when natural lighting allows for effective visibility. This is crucial for helping pilots safely navigate takeoff and landing procedures. The design and colors utilized in the structure rely on sunlight, making them less effective or virtually invisible at night without illumination.

Understanding the importance of visibility, pilots must rely on properly lit airport beacons and instrument approaches during night operations instead of the segmented circle. This ensures that safe operational practices are followed. Therefore, the indication of visibility being restricted to daytime scenarios is correct and aligns with the intended use of these indicators in guiding traffic patterns.