Traffic pattern indicator

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File:Segmented circle visual indicator system for traffic pattern.png
L-shaped traffic pattern indicators are part of the segmented circle, a visual indicator system designed to provide traffic pattern information.[1]

In aviation, a traffic pattern indicator is an L-shaped device which show the airfield traffic pattern to the in-flight aircraft over an aerodrome.[2] The short arm of the "L" represents the base leg, and the long arm the final approach.[3] If no segmented circle is installed, traffic pattern indicators may be installed on or near runway ends.[4]

References

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