Turnstile
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A turnstile is a form of gate which allows one person to pass at a time. A turnstile can be configured to enforce one-way human traffic. In addition, a turnstile can restrict passage only to people wh
Old turnstiles at Alewife station on the MBTA Red Line in Cambridge, MA, U.S.
A wooden turnstile for keeping livestock penned in (Zwierzyniec, Poland).
A circa-1930 turnstile and kiosk at the Bath Recreation Ground
An array of historic NY subway turnstiles, from 1939
Paid area
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In public transport operations and transport planning, the paid area is a dedicated "inner" zone in a railway station or metro station, accessible via turnstiles or other barriers, to get into which v
Turnstile
…including retina scanning, fingerprints, and other individual human characteristics which can be scanned. A turnstile can be used in the case of paid access (sometimes called a faregate or ticket barrier when used for this purpose), for example to access public transport, a pay toilet, or to restrict access…
A row of ticket gates at Tai Wai station of Hong Kong KCR (before it was merged with MTR), separating the rest of the station (where the picture was taken) from its paid area.
Ticket gate at Blok M MRT station of Jakarta MRT with paid area behind it.