A turnstile (also called a gateline, baffle gate , automated gate , turn gate in some regions) 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 who insert a coin, ticket, transit pass , security credential , or other method of payment or verification. Modern turnstiles can incorporate biometrics , including retina scanning, fingerprints, and other individual human characteristics which can be scanned. Thus 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 to authorized people, for example in the lobby of an office building.
25-520: Heet or HEET may refer to HEET, High Entrance/Exit Turnstile Iso-HEET, a brand of isopropanol antifreeze produced by Gold Eagle Hīt , a city in Iraq See also [ edit ] Hit (disambiguation) Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title Heet . If an internal link led you here, you may wish to change
50-423: A passenger with a valid ticket before closing of some types of ticket barrier gates (this is called tailgating ). Other methods include adults traveling on children's tickets, or using discounted tickets or free passes that the passenger is not entitled to. They also can purchase valid tickets for shorter journeys in order to get through the entry and exit barriers at a lower price than their actual journey, or board
75-404: A payment has been made, usually by inserting a coin or token in a slot; or by swiping, tapping, or inserting a paper ticket or electronically-encoded card. Turnstiles are often used for counting the numbers of people passing through a gate, even when 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
100-409: 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 functions as a fully optical turnstile. The full-height turnstile – a larger version of the waist-high turnstile, commonly 7 feet (2.1 m) high – ,
125-566: A valid barcode is electronically read. A disadvantage to this type is people can " jump the turnstile " as happens commonly on the Moscow Metro and other mass transport systems in Russia . 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
150-510: A vehicle (rooftops, rear parts, between cars, skitching , or underneath a vehicle), also known as "vehicle surfing" ( train surfing , car surfing ). Fare dodgers may engage in this practice if it is very hard or impossible to hide from ticket inspectors inside a vehicle. Turnstiles are used to obstruct invalid access. Turnstiles may be replaced with ticket barriers in a less easily transversed form, or may be integrated more closely with an electronic ticket system. Ticket barriers can also require
175-496: A vehicle with just a platform ticket (called "doughnutting", as the ticket coverage looks like a doughnut on the Tube map ). Fare evasion on trains or subways is also called "bumping trains". On vehicles fare-dodgers usually try to avoid ticket inspectors or conductors. On commuter trains with a sufficient number of passenger coaches one of the most common methods is walking away from ticket inspectors to other coaches and running on
200-435: 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 Heathrow Terminals 2 & 3 Underground station . Turnstiles often use ratchet 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
225-496: A wide variety of settings, including stadiums, amusement parks, mass transit stations, office lobbies, airports, ski resorts, factories, power plants and casinos. 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 any prohibited materials. On
250-403: Is based on the same principle as the revolving door . Furthermore, full-height turnstiles offer better security inasmuch as they can neither be climbed over nor ducked under, and can be designed to lock after each person enters such that the following person must themselves pay a fee or present credentials. Too, they may be designed to allow traffic in both directions, or in a single direction. It
275-493: Is considered a misdemeanor . In such cases, police officers and in some cases transit employees are authorized to issue tickets which usually carry a fine . Then, charged persons can be tried in court . Repeat violators and severe cases, such as ticket forgery, are punished more severely and sometimes involve incarceration . Wealthy offenders sometimes face stiffer penalties than poorer offenders. The MBTA apprehended vandals damaging AFC equipment while evading, and published
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#1732771770214300-412: Is more feasible. 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 without a valid entry pass. The drop-arm optical turnstile is a combination of the security of
325-645: Is sometimes called a "rotogate", especially in Chicago, where it is used at unstaffed exits of Chicago "L" stations, and is also used increasingly in New York City Subway stations since the turn of the 21st century. Fare evasion Fare evasion or fare dodging is the act of travel without payment on public transit. When considered problematic, it is mitigated by revenue protection officers and ticket barriers, staffed or automatic, are in place to ensure only those with valid tickets may access
350-404: The conclusion of a major sporting event. Ticket inspectors can also watch for turnstiles at train stations to avoid unauthorized passing without a valid ticket and using discounted tickets. Ticket inspectors may or may not be allowed to use force to prevent or apprehend fare-dodgers. A penalty fare is a special fare charged at a higher than normal price because the purchaser did not comply with
375-400: The entire route (usually on long-distance or some commuter transport) and often, in another case they randomly check multiple vehicles (usually city public transport and some commuter transport). Transit systems which use honor systems under normal circumstances may employ staff to collect fares at times and places where heavy use can be expected—for example, at stations serving a stadium after
400-431: The fare-dodging traveller, especially usage of discounted tickets (for example child, student or pensioner tickets) by passengers who are not allowed to use it. Ticket inspectors can verify tickets of passengers during the trip or during a boarding on vehicle (the last form of fare control is a common practice on long-distance rail transport). In some cases ticket inspectors are assigned to a certain vehicle during its trip on
425-666: The link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=Heet&oldid=1257462755 " Category : Disambiguation pages Hidden categories: Short description is different from Wikidata All article disambiguation pages All disambiguation pages Turnstile Turnstiles were originally used, like other forms of stile , to allow human beings to pass while keeping sheep or other livestock penned in. The use of turnstiles in most modern applications has been credited to Clarence Saunders , who used them in his first Piggly Wiggly store. Turnstiles are used at
450-439: The normal ticket purchasing rules. Typically penalty fares are incurred by passengers failing to purchase a ticket before travelling or by purchasing an incorrect ticket which does not cover their whole journey. Penalty fares are not fines , and are used when no legal basis for prosecuting fare evasion exists, prosecution is deemed too drastic and costly, or is unlikely to result in conviction . On some systems, fare evasion
475-470: The other hand, physical barriers become a serious safety issue when a speedy evacuation is needed, requiring emergency exits that bypass any turnstiles. The ticket barriers on the London Underground and some busy UK railway stations have to be open if either the gates are unmanned or in an emergency. Persons with disabilities may have difficulties using turnstiles. In these cases, generally
500-469: The park and ride each ride. The first major use of turnstiles at a sporting venue was at Hampden Park in Glasgow , Scotland . 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
525-429: The platform in the opposite direction to the coaches that ticket inspectors already passed. On short commuter trains or especially intercity and long-distance passenger trains fare-dodgers can hide from ticket inspectors in toilets, luggage compartments, staff rooms and other utility chambers and cells inside the train. Another issue occurs on the bus or tram ; passengers either bypass the bus driver or enter through
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#1732771770214550-409: The rear door of the vehicle. If a bus or tram has a turnstile installed in it, fare-dodgers can jump over or crawl under the turnstile. In most countries passengers board a bus from any door, validate their tickets at machines and have no contact with the driver, thus increasing the potential for fare evasion. A dangerous method of fare evasion practiced in some countries is riding on exterior parts of
575-443: The transport. The term fare avoidance is sometimes used as a euphemistic synonym and sometimes used to refer to the lawful use of much cheaper tickets . Fare evasion and fare fraud may or may not be a crime, depending on jurisdiction. One method of fare evasion is jumping or climbing over the turnstiles which bar the entryway into a subway system; hence the term, "turnstile jumping". Fare-dodgers also can walk right behind
600-533: The travellers to show their tickets upon exiting. Typically turnstiles are used at train stations, however some city transit systems install turnstiles inside city street vehicles, for example buses and trams. As of 2006, panic bars on emergency exit doors were approved for installation in all stations of the New York City Subway . Panic bar alarms have been silenced since 2014 due to regularity of non-emergency passenger use. With manual fare collection , fare evasion can become more difficult and stigmatizing for
625-474: The turnstile at the 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
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