View source for Traffic pattern indicator

[[File:Segmented circle visual indicator system for traffic pattern.png|thumb|L-shaped traffic pattern indicators are part of the segmented circle, a visual indicator system designed to provide traffic pattern information.<ref>{{Cite PHAK|year=2023|chapter=14|page=20}}</ref>]]

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]].<ref>{{cite book
|title=Airplane Flying Handbook
|author=United States. Flight Standards Service. Airman Testing Standards Branch.
|publisher=Skyhorse Publishing
|location=New York
|year=2007
|isbn=978-1-60239-003-4
|url=https://books.google.com/books?id=V3SZXFWuCIgC&dq=%22traffic+pattern+indicator%22&pg=SA6-PA19}}</ref> The short arm of the "L" represents the [[base leg]], and the long arm the [[final approach (aeronautics)|final approach]].<ref>{{cite web
|url=https://www.gleimaviation.com/2018/09/21/how-to-interpret-segmented-circles/
|title=How to Interpret Segmented Circles
|last=Winters
|first=Karl
|date=2018
|website=Gleim Aviation
|publisher=Gleim Publications Inc
|access-date=2022-03-19}}</ref> If no segmented circle is installed, traffic pattern indicators may be installed on or near runway ends.<ref>{{cite web |title=Section 3. Airport Operations |url=https://www.faa.gov/air_traffic/publications/atpubs/aim_html/chap4_section_3.html |publisher=[[Federal Aviation Administration]] |access-date=11 January 2024 |page=4-3-4.b.5}}</ref>

==References==
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[[Category:Air traffic control]]


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