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corresponding speed. Sometimes also referred to as "half-height" turnstiles, this fixed arm style has traditionally been the most popular type of turnstile. There are many variations of this style available, including one which is designed to be accompanied by a matching ticket box, and one with a ticket box built in. Some styles are designed to allow entry only after a payment (actual coins and tokens) are inserted, while others allow access after a valid barcode is electronically read. A disadvantage to this type is people can "
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Waist-high turnstiles are often used in fairs, attractions, and arenas. The user inserts a ticket or pass into the 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
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From a business/revenue standpoint, turnstiles give an accurate, verifiable count of attendance. From a security standpoint, they lead patrons to enter single-file, so security personnel have a clear view of each patron. This enables security to efficiently isolate potential trouble or to confiscate
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Optical turnstiles are an alternative to the traditional "arm"-style turnstile and are increasingly used in locations where a physical barrier is deemed unnecessary or unaesthetic. Optical turnstiles generally use an infrared beam to count patrons and recognize anyone attempting to enter a site
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The drop-arm optical turnstile is a combination of the security of a tripod or barrier turnstile and a fully optical turnstile. The lanes can have either single or double arms. When access is granted the arms drop into recesses in the cabinet. Once the arms drop out of the way, the turnstile
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The wall mount tripod turnstiles are suitable for places where installation on ground becomes impossible. The turnstile is directly fixed to the wall and all functions are achieved. Such turnstiles are usually used in narrow lanes and where wall installation is more feasible.
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may have difficulties using turnstiles. In these cases, generally a wide aisle gate or a manual gate may be provided. At some locations where luggage is expected, a line of turnstiles may be entirely formed of wide aisle gates, for example at
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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
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Turnstiles are used at a wide variety of settings, including stadiums, amusement parks, mass transit stations, office lobbies, airports, ski resorts, factories, power plants and casinos.
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The full-height turnstile – a larger version of the waist-high turnstile, commonly 7 feet (2.1 m) high – , is based on the same principle as the
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any prohibited materials. On the other hand, physical barriers become a serious safety issue when a speedy evacuation is needed, requiring
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passing through a gate, even when payment is not involved. They are used extensively in this manner in
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in a slot; or by swiping, tapping, or inserting a paper ticket or electronically-encoded card.
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which allows one person to pass at a time. A turnstile can be configured to enforce
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or ticket barrier when used for this purpose), for example to access
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This article is about the pedestrian gate. For other uses, see
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that bypass any turnstiles. The ticket barriers on the
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Turnstiles were originally used, like other forms of
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A wooden turnstile for keeping livestock penned in (
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509:"Piggly Wiggly: Technology That Changed Chicago"
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580:"Security Tips for Bus and Rail Fall 2005"
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127:Learn how and when to remove this message
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76:"Turnstile"
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233:, Poland).
217:building.
211:pay toilet
195:biometrics
191:credential
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