Turnstile

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subway station in Cambridge, MassachusettsA turnstile, also called a baffle gate, is a form of gate which allows one person to pass at a time. It can also be made so as to enforce One-way traffic#One-way traffic of people, and in addition, it can restrict passage to people who insert a coin, a ticket, a pass, or similar. Thus a turnstile can be used in the case of Fare control (sometimes called a Faregate when used for this purpose), for example public transport or a pay toilet, or to restrict access to authorized people, for example in the lobby of an office building.

History and applications . The user inserts a ticket or pass into the orange slot, from which a barcode is read; if access is to be granted, a sensor determines the speed with which the user passes through, and sets the electric motor to turn the turnstile at the corresponding speed.The invention of the turnstile has been credited to Clarence Saunders, who used them in his first Piggly Wiggly store.

Turnstiles are also used for counting the numbers of people passing through a gate, even where payment is not involved. They are used extensively in this manner in amusement parks, in order to keep track of how many people enter and exit the park and ride each ride.

Turnstiles were originally used, like other forms of stile, to allow human beings to pass whilst keeping sheep or other livestock penned in. Two passageways into Lincoln's Inn Fields in London have been named Great Turnstile and Little Turnstile for hundreds of years, harking back to the days when there was grazing there.

The first major use of turnstiles at a sporting venue was at Hampden Park in Glasgow, Scotland.

People visiting Thomas Edison had to pass through a turnstile which pumped water into his holding tank, saving him the work .

Turnstiles often use Ratchet (device) mechanisms to allow the rotation of the stile in one direction allowing ingress but preventing rotation in the other direction. They are often designed to operate only after a payment has been made, usually by inserting a coin or token (numismatics) in a slot; or by swiping, or inserting, a paper ticket or electronically encoded card.

Mechanical turnstiles are less often used these days, with electronic gate and ticketing systems becoming more common.

In the first half of the twentieth century, it was common for entry to public lavatory in UK to be controlled by turnstiles.

The High Entrance/Exit Turnstile (HEET), a larger version of the turnstile, similar in operation to a revolving door, is known as an "iron maiden", after the Iron maiden (torture device) of the same name, or as "high-wheel". missing HEET It is sometimes called a "Rotogate", especially in Chicago, where they are used at unstaffed exits of their Chicago 'L' stations. In Europe, however, "Rotogate" refers to a different kind of gate that is not a turnstile.

Turnstiles in Russia ]

In the public transportation systems of the Soviet Union, the only common use of turnstileswas at the entrance to subway stations (first introduced in Moscow Metro on November 7, 1958 Timeline (ХРОНОЛОГИЯ) (Moscow Metro official site, accessed 2006-Nov-03)).City buses and commuter trains usually operated on the honor system. But as fare collection became a more pressing businessin post-Soviet Russia, railway terminals and high-traffic railway station in the Moscow area, Nizhny Novgorod and elsewherehad turnstiles installed.

In the early 2000s, Moscow authorities went one step further in their quest to improve fare collection: since enclosing all bus and streetcar stops and providing them with fare gates would not be feasible, the authorities resorted to installing turnstiles inside each city bus and streetcar. This practice has caused numerous passenger complaints as it reduced the speed of boarding, compared to the traditional honor system.

Turnstile Jumping in Paris are "dodge-proof" - they cannot be jumped over.Turnstile jumping is the practise of jumping over turnstiles, especially in metro stations, to dodge transportation or entrance fee.

See also

optical turnstile

Footnotes

External links

Page showing various designs of turnstiles in the history of the New York subway system.

Sheffield Botanical Gardens Turnstile
History Located at the Northwest corner of the Gardens, this wrought iron caged turnstile was used on the Gala Days when the Gardens were opened to the public.

Sheffield Botanical Gardens Turnstile Photographs
SHEFFIELD BOTANICAL GARDENS TRUST Clarkehouse Road, Sheffield, S10 2LN. Tel: +44 (0)114 268 6001 Site created by Gumshoe Software Limited and hosted by Sheffield Community ...

The Turnstile League
The average attendances for league games for clubs within Step 1 to 4 of the National League System. [From the pages of King's Lynn Football Club]

Video Turnstile People Counting Systems
Data collection system to count people and produce footfall data.

UKB International - Access Technology, Biometrics, CCTV, Barriers ...
The turnstile is finished in a powder coating in a colour of choice and consists of two parts: a modular frame standard in aluminium; a central rotating stainless steel column ...

Turnstile - Wikipedia, the free encyclopedia
A turnstile, also called a baffle gate, is a form of gate which allows one person to pass at a time. It can also be made so as to enforce one-way traffic of people, and in addition ...

Car Park Barriers and Turnstiles
Our turnstiles offer improved security and are available in a number of styles to suit your needs. Your turnstile can be equipped to be used as a security device ...

Frontier Pitts Turnstile Range
Automatic Barrriers, Automatic Rising Arm Security Barriers with booms up to 10 metres long ... Frontier Pitts manufacture a range of pedestrian control turnstiles, including ...

Frontier Pitts Terra Diamond Turnstile
Automatic Barrriers, Automatic Rising Arm Security Barriers with booms up to 10 metres long ... The Diamond Turnstile is designed to withstand extreme pedestrian attack.

Integrated Design - Turnstile, Optical Turnstile, Speedgate
Integrated Design Limited. IDL are a leading Security Industry manufacturer, with a range of innovative solutions for both Access Control and Perimeter Protection.