Proof-of-payment
Encyclopedia
Proof-of-payment or POP is an honor
Honor system
An honor system or honesty system is a philosophical way of running a variety of endeavors based on trust, honor, and honesty. Something that operates under the rule of the "honor system" is usually something that does not have strictly enforced rules governing its principles...

-based fare
Fare
A fare is the fee paid by a passenger allowing him or her to make use of a public transport system: rail, bus, taxi, etc. In the case of air transport, the term airfare is often used.-Uses:...

 collection approach used on many public transportation systems. Instead of checking each passenger as they enter a fare control zone, proof-of-payment requires that each passenger carry a ticket
Ticket (admission)
A ticket is a voucher that indicates that one has paid for admission to an event or establishment such as a theatre, movie theater, amusement park, zoo, museum, concert, or other attraction, or permission to travel on a vehicle such as an airliner, train, bus, or boat, typically because one has...

 or pass proving that they have paid the fare. Ticket controllers or conductors
Conductor (transportation)
A conductor is a member of a railway train's crew that is responsible for operational and safety duties that do not involve the actual operation of the train. The title of conductor is most associated with railway operations in North America, but the role of conductor is common to railways...

 make periodic checks to deter fare evasion. On many systems, a passenger can purchase a single-use ticket or multi-use pass at any time in advance, but must insert the ticket or pass into a validation machine before use. Validation machines in stations or on board vehicles time stamp the ticket. The ticket is then valid for some period of time after the stamped time.

The proof-of-payment method is implemented when the transit authority believes it will lose less money to the resultant fare evasion than it would cost to install and maintain a more direct collection method. It may be used in systems whose passenger volume and density are not very high most of the time—as passenger volumes increase, more-direct collection methods become more profitable. However, in some countries it is common even on systems with very high passenger volume.

POP can be complemented with a more direct collection approach where this would be feasible—a transit authority utilizing POP will usually post fare inspectors, sometimes armed as a police force, to man entrances to stations on a discretionary basis when a high volume of passengers is expected. For example, transit users leaving a stadium
Stadium
A modern stadium is a place or venue for outdoor sports, concerts, or other events and consists of a field or stage either partly or completely surrounded by a structure designed to allow spectators to stand or sit and view the event.)Pausanias noted that for about half a century the only event...

 immediately following a major concert or sporting event will likely have to buy a ticket from an attendant (or show proof of payment) to gain access to the station(s) servicing the stadium.

Travel without a valid ticket is not usually considered a crime, but a penalty fare
Penalty fare
On the United Kingdom's public transport systems, a penalty fare is a special fare charged at a higher than normal price because the purchaser did not comply with the normal ticket purchasing rules...

 is charged.

Advantages and disadvantages

Advantages of proof-of-payment include lower labor costs for fare collection, simpler station design, easier access for mobility-impaired passengers, easier access for those carrying packages or in case of an emergency, and a more open feel for passengers. On buses, proof-of-payment saves drivers the time needed to collect fares, and makes it possible for all doors to be used for boarding. Validated tickets can double as transfers
Transfer (public transit)
A transfer allows the rider of a public transportation vehicle who pays for a single-trip fare to continue the trip on another bus or train. Depending on the network, there may or may not be an additional fee for the transfer...

 between lines.

Disadvantages include potentially higher rate of fare evasion, reduced security on station platforms when no barrier is used, increased potential of racial profiling
Racial profiling
Racial profiling refers to the use of an individual’s race or ethnicity by law enforcement personnel as a key factor in deciding whether to engage in enforcement...

 and other unequal enforcement as "likely fare evaders" are targeted, and regularly exposing passengers to unpleasant confrontational situations when a rider without the proper proof is detained and removed from the vehicle. Visitors unfamiliar with a system's validation requirements who innocently misunderstand the rules are especially likely to get into trouble.

Worldwide uses

Proof-of-payment is popular in Germany, where it was widely introduced during the labor shortages resulting from the Economic Miracle
Wirtschaftswunder
The term describes the rapid reconstruction and development of the economies of West Germany and Austria after World War II . The expression was used by The Times in 1950...

 of the 1960s. It has also been adopted in Eastern Europe and Canada and has made some inroads in newer systems in the United States. The first use of the term "POP" or "Proof of Payment" on a rail line in North America is believed to have been in Edmonton
Edmonton
Edmonton is the capital of the Canadian province of Alberta and is the province's second-largest city. Edmonton is located on the North Saskatchewan River and is the centre of the Edmonton Capital Region, which is surrounded by the central region of the province.The city and its census...

 in 1980.

Rail

  • All German S-Bahn
    S-Bahn
    S-Bahn refers to an often combined city center and suburban railway system metro in Austria, Germany, Switzerland and Denmark...

    , U-Bahn and Stadtbahn
    Stadtbahn
    A ' is a tramway or light railway that includes segments built to rapid transit standards, usually as part of a process of conversion to a metro railway, mainly by the building of tunnels in the central city area....

     (light rail
    Light rail
    Light rail or light rail transit is a form of urban rail public transportation that generally has a lower capacity and lower speed than heavy rail and metro systems, but higher capacity and higher speed than traditional street-running tram systems...

    ) systems, as well as most German tramway systems
    Trams in Germany
    Germany has an extensive number of tramway networks . Some of these networks have been upgraded to light rail standards, called Stadtbahn in German...

  • Majority of public transport systems in Central Europe
    Central Europe
    Central Europe or alternatively Middle Europe is a region of the European continent lying between the variously defined areas of Eastern and Western Europe...

     and Eastern Europe
    Eastern Europe
    Eastern Europe is the eastern part of Europe. The term has widely disparate geopolitical, geographical, cultural and socioeconomic readings, which makes it highly context-dependent and even volatile, and there are "almost as many definitions of Eastern Europe as there are scholars of the region"...

  • Altamont Commuter Express
    Altamont Commuter Express
    The Altamont Commuter Express is a regional rail service in California connecting Stockton with San Jose....

  • Baltimore Light Rail
    Baltimore Light Rail
    The Maryland Transit Administration Light Rail is a light rail system serving Baltimore, Maryland, United States, and the surrounding suburbs.In downtown Baltimore it uses city streets...

  • Surface portions of Boston's MBTA Green Line
    Green Line (MBTA)
    The Green Line is a streetcar system run by the Massachusetts Bay Transportation Authority in the Boston, Massachusetts area of the United States. It is the oldest line of Boston's subway, which is known locally as the 'T'. The Green Line runs underground downtown and on the surface in outlying...

  • Buffalo Metro Rail
    Buffalo Metro Rail
    The NFTA has a fleet of 26 rigid-bodied LRVs for the Metro Rail system, numbered sequentially from 101 to 127. They were built by Tokyu Car Corporation of Japan. One car was damaged in transit and later purchased by a restaurateur, Bertrand H. Hoak, of Hamburg, as an addition to Hoak's Armor Inn...

  • Calgary
    Calgary
    Calgary is a city in the Province of Alberta, Canada. It is located in the south of the province, in an area of foothills and prairie, approximately east of the front ranges of the Canadian Rockies...

     C-Train
    C-Train
    C-Train is the light rail transit system in Calgary, Alberta, Canada. It has been in operation since May 25, 1981. The system is operated by Calgary Transit, a department of the Calgary municipal government.-Operations:...

  • Charlotte, North Carolina
    Charlotte, North Carolina
    Charlotte is the largest city in the U.S. state of North Carolina and the seat of Mecklenburg County. In 2010, Charlotte's population according to the US Census Bureau was 731,424, making it the 17th largest city in the United States based on population. The Charlotte metropolitan area had a 2009...

     LYNX
    LYNX Rapid Transit Services
    Lynx Rapid Transit Services comprises a light rail line serviced by the Charlotte Area Transit System in Charlotte, North Carolina, United States...

  • Greater Cleveland Regional Transit Authority Red Line Rapid Transit
    Red Line (Cleveland)
    The Red Line is a rapid transit line of the RTA Rapid Transit in Cleveland, Ohio, running from Cleveland Hopkins International Airport northeast to Tower City in downtown Cleveland, then east and northeast to Windermere...

  • Copenhagen Metro
    Copenhagen Metro
    Copenhagen Metro is a rapid transit system serving Copenhagen, Frederiksberg and Tårnby in Denmark. The system opened between 2002 and 2007, and has two lines, M1 and M2. The driverless light metro supplements the larger S-train rapid transit system, and is integrated with DSB local trains and...

     and Copenhagen S-Train
    S-Train
    The S-train network is a combined urban rapid transit and suburban rail network of Metropolitan Copenhagen, Denmark. It connects the city center with the inner suburbs of Copenhagen, and has close to half of the stations within the urban city. The first line was opened in 1934...

  • Dallas Area Rapid Transit's Light Rail system and Trinity Railway Express
    Trinity Railway Express
    The Trinity Railway Express is a commuter rail line in the Dallas – Fort Worth Metroplex. It was established by an interlocal agreement between Dallas Area Rapid Transit and the Fort Worth Transportation Authority . Each transit authority owns a 50% stake in the joint rail project and...

  • Denver, Colorado
    Denver, Colorado
    The City and County of Denver is the capital and the most populous city of the U.S. state of Colorado. Denver is a consolidated city-county, located in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains...

     Regional Transportation District
    Regional Transportation District
    The Regional Transportation District, or RTD, was organized in 1969 and is the regional authority operating public transit services in eight of the twelve counties in the Denver-Aurora-Boulder Combined Statistical Area in Colorado. RTD is governed by a 15-member, publicly elected Board of...

  • Edmonton Transit System
    Edmonton Transit System
    The Edmonton Transit System, also called ETS, is the public transit service owned and operated by the city of Edmonton, Alberta. It operates Edmonton's bus and light rail systems.-Service:...

  • GO Transit
    GO Transit
    GO Transit is an inter-regional public transit system in Southern Ontario, Canada. It primarily serves the Greater Toronto and Hamilton Area conurbation, with operations extending to several communities beyond the GTHA proper in the Greater Golden Horseshoe...

  • Helsinki commuter rail
    Helsinki commuter rail
    Helsinki commuter rail is the commuter rail system serving Greater Helsinki, Finland. The network is operated by VR, the Finnish national railway company. Together with the Helsinki Metro and trams, the network forms the heart of Helsinki's public transportation infrastructure.Trains run above...

  • Helsinki Public Transit
    Public transport in Helsinki
    Public transport in Helsinki consists of bus, tram, metro, train, and ferry services. The system is managed by Helsinki Region Transport ....

  • Hiawatha Light Rail Line Twin Cities, Minnesota
  • MTR
    MTR
    Mass Transit Railway is the rapid transit railway system in Hong Kong. Originally opened in 1979, the system now includes 211.6 km of rail with 155 stations, including 86 railway stations and 69 light rail stops...

     Light Rail in Hong Kong
    Hong Kong
    Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

  • METRORail
    METRORail
    METRORail is the light rail line in Houston . It is the second major light rail service in Texas following the Dallas Area Rapid Transit system. With an approximate daily ridership of 34,155, the METRORail ranks as the fourteenth most-traveled light rail system in the United States, with the...

     of the Metropolitan Transit Authority of Harris County, Texas
    Metropolitan Transit Authority of Harris County, Texas
    The Metropolitan Transit Authority of Harris County is a major public transportation agency based in Houston . It operates bus, light rail, future commuter rail, and paratransit service in the city as well as most of Harris County...

     in Houston, Texas
    Houston, Texas
    Houston is the fourth-largest city in the United States, and the largest city in the state of Texas. According to the 2010 U.S. Census, the city had a population of 2.1 million people within an area of . Houston is the seat of Harris County and the economic center of , which is the ...

  • Line 1 (ISAP
    ISAP
    I.S.A.P. is the acronym for the Athens-Piraeus Electric Railways , the oldest urban rapid transit system of Athens metropolitan area in Greece. It is the second-oldest underground metro system in the world, after the Metropolitan Railway, of 1863, now a part of the London Underground...

    ) of the Attiko Metro in Athens, Greece
  • Los Angeles County Metro Rail
    Los Angeles County Metro Rail
    Metro Rail is the rapid transit rail system consisting of five separate lines serving 70 stations in the Los Angeles County, California area. The new Expo line is due to enter service in early 2012. It connects with the Metro liner bus rapid transit system and also with the Metrolink commuter...

  • Docklands Light Railway
    Docklands Light Railway
    The Docklands Light Railway is an automated light metro or light rail system opened on 31 August 1987 to serve the redeveloped Docklands area of London...

    , London, United Kingdom
  • Luas
    Luas
    Luas , also promoted in the development stage as the Dublin Light Rail System, is a tram or light rail system serving Dublin, the first such system in the decades since the closure of the last of the Dublin tramways. In 2007, the system carried 28.4 million passengers, a growth of 10% since...

    , Dublin, Ireland
  • NJ Transit
    Light rail in New Jersey
    Light rail in New Jersey is provided by New Jersey Transit, a corporation which also provides bus and heavy rail services.-Hudson–Bergen Light Rail:...

     light rail lines: Newark Light Rail
    Newark Light Rail
    The Newark Light Rail is a light rail system under New Jersey Transit Bus Operations serving Newark, New Jersey. The service consists of two segments, the original Newark City Subway, and the extension to Broad Street station...

    , Hudson-Bergen Light Rail
    Hudson-Bergen Light Rail
    The Hudson–Bergen Light Rail is a light rail system in Hudson County, New Jersey, United States. Owned by New Jersey Transit and operated by the 21st Century Rail Corporation, it connects the communities of Bayonne, Jersey City, Hoboken, Weehawken, Union City , and North Bergen.The system began...

    , and River Line
    River Line (New Jersey Transit)
    The River Line is a diesel light rail system in New Jersey, United States, that connects the cities of Camden and Trenton, New Jersey's capital. It is operated for New Jersey Transit by the Southern New Jersey Rail Group , which originally included Bechtel Group and Bombardier...

  • Metrolink
    Metrolink (Southern California)
    Metrolink is a commuter rail system serving Los Angeles and the surrounding area of Southern California; it currently consists of six lines and 55 stations using of track....

     in Southern California
    Southern California
    Southern California is a megaregion, or megapolitan area, in the southern area of the U.S. state of California. Large urban areas include Greater Los Angeles and Greater San Diego. The urban area stretches along the coast from Ventura through the Southland and Inland Empire to San Diego...

  • Montreal
    Montreal
    Montreal is a city in Canada. It is the largest city in the province of Quebec, the second-largest city in Canada and the seventh largest in North America...

    's Agence métropolitaine de transport
    Agence métropolitaine de transport
    The Agence métropolitaine de transport is the umbrella organization that plans, integrates, and coordinates public transportation services across Canada's Greater Montreal Region, including the Island of Montreal, Laval , and communities along both the North Shore of the Rivière des Mille-Îles...

     commuter trains
  • Mumbai Suburban Railway
    Mumbai Suburban Railway
    The Mumbai Suburban Railway system, part of the public transport system of Mumbai, is provided for by the state-run Indian Railways' two zonal Western Railways and Central Railways. The system carries more than 6.99 million commuters on a daily basis. It has the highest passenger densities of any...

  • Ottawa, Ontario O-Train
  • Phoenix, Arizona
    Phoenix, Arizona
    Phoenix is the capital, and largest city, of the U.S. state of Arizona, as well as the sixth most populated city in the United States. Phoenix is home to 1,445,632 people according to the official 2010 U.S. Census Bureau data...

     Metro Light Rail
    METRO Light Rail (Phoenix)
    Metro Light Rail is a 32 km light rail line operating in the U.S. state of Arizona. Part of the Valley Metro public transit system, it serves the cities of Phoenix, Tempe, and Mesa. Construction began in March 2005; operation started December 27, 2008...

  • Portland, Oregon
    Portland, Oregon
    Portland is a city located in the Pacific Northwest, near the confluence of the Willamette and Columbia rivers in the U.S. state of Oregon. As of the 2010 Census, it had a population of 583,776, making it the 29th most populous city in the United States...

     TriMet
    TriMet
    TriMet, more formally known as the Tri-County Metropolitan Transportation District of Oregon, is a public agency that operates mass transit in a region that spans most of the Portland metropolitan area in the U.S. state of Oregon...

  • Sacramento, California
    Sacramento, California
    Sacramento is the capital city of the U.S. state of California and the county seat of Sacramento County. It is located at the confluence of the Sacramento River and the American River in the northern portion of California's expansive Central Valley. With a population of 466,488 at the 2010 census,...

     RT Light Rail
  • San Diego Trolley
    San Diego Trolley
    The San Diego Trolley is a light rail system operating in the metropolitan area of San Diego. The operator, San Diego Trolley, Inc. , is a subsidiary of the San Diego Metropolitan Transit System ...

  • San Francisco Bay Area
    San Francisco Bay Area
    The San Francisco Bay Area, commonly known as the Bay Area, is a populated region that surrounds the San Francisco and San Pablo estuaries in Northern California. The region encompasses metropolitan areas of San Francisco, Oakland, and San Jose, along with smaller urban and rural areas...

     Caltrain
    Caltrain
    Caltrain is a California commuter rail line on the San Francisco Peninsula and in the Santa Clara Valley in the United States. The northern terminus of the rail line is in San Francisco, at 4th and King streets; its southern terminus is in Gilroy...

  • San Francisco Municipal Railway
    San Francisco Municipal Railway
    The San Francisco Municipal Railway is the public transit system for the city and county of San Francisco, California. In 2006, it served with an operating budget of about $700 million...

  • Santa Clara Valley Transportation Authority
    Santa Clara Valley Transportation Authority
    The Santa Clara Valley Transportation Authority is a special-purpose district responsible for public transit services, congestion management, specific highway improvement projects, and countywide transportation planning for Santa Clara County, California, United States...

     (VTA)
  • Seattle, Washington
    Seattle, Washington
    Seattle is the county seat of King County, Washington. With 608,660 residents as of the 2010 Census, Seattle is the largest city in the Northwestern United States. The Seattle metropolitan area of about 3.4 million inhabitants is the 15th largest metropolitan area in the country...

     Sounder Commuter Rail
    Sounder Commuter Rail
    Sounder commuter rail is a regional rail service operated by BNSF on behalf of Sound Transit. Service operates Monday through Friday during peak hours from Seattle, Washington, north to Everett and south to Tacoma. As of 2011, schedules serve the traditional peak commutes, with most trains running...

     and Central Link light rail (Sound Transit
    Sound Transit
    Sound Transit has been the popular name of Washington state's Central Puget Sound Regional Transit Authority since September 19, 1999. It was formed in 1996 by the Snohomish, King, and Pierce County Councils...

    )
  • St. Louis MetroLink
    St. Louis Metrolink
    MetroLink is the light rail transit system in the Greater St. Louis area of Missouri and the Metro East area of Illinois. The entire system currently consists of two lines connecting Lambert-St. Louis International Airport and Shrewsbury, MO with Scott Air Force Base near Shiloh, Illinois through...

  • TTC
    Toronto Transit Commission
    -Island Ferry:The ferry service to the Toronto Islands was operated by the TTC from 1927 until 1962, when it was transferred to the Metro Parks and Culture department. Since 1998, the ferry service is run by Toronto Parks and Recreation.-Gray Coach:...

     501 Queen
  • Translink (Vancouver)
    TransLink (Vancouver)
    TransLink is the organization responsible for the regional transportation network of Metro Vancouver in British Columbia, Canada, including public transport and major roads and bridges...

  • Tyne and Wear Metro
    Tyne and Wear Metro
    The Tyne and Wear Metro, also known as the Metro, is a light rail system in North East England, serving Newcastle upon Tyne, Gateshead, South Tyneside, North Tyneside and Sunderland. It opened in 1980 and in 2007–2008 provided 40 million public journeys on its network of nearly...

  • Utah Transit Authority TRAX
    UTA TRAX
    TRAX is a three-line light rail system in Utah's Salt Lake Valley, serving Salt Lake City and several of its suburbs throughout Salt Lake County. The system is operated by the Utah Transit Authority ....

  • Vienna U-Bahn
    Vienna U-Bahn
    The Vienna U-Bahn is a rapid transit system consisting of five lines. It is the backbone of one of the best performing public transport systems worldwide according to UITP in June 2009. More than 1.3 million passengers use the Vienna U-Bahn every day...

     and Trams
  • Virginia Railway Express
    Virginia Railway Express
    The Virginia Railway Express is a regional/ commuter rail service that connects the Northern Virginia suburbs to Union Station in Washington, D.C., via two lines: the Fredericksburg Line from Fredericksburg, Virginia, and the Manassas Line from Broad Run/Airport station in Bristow,...

  • Zagreb ZET
    ZET
    The Zagrebački električni tramvaj is the major transit authority responsible for public transport in Zagreb, the capital of Croatia, and one part of the Zagreb County. ZET is now a branch of the Zagreb Holding...


Bus

  • Greater Cleveland Regional Transit Authority HealthLine
    HealthLine
    The HealthLine is a bus rapid transit line run by the Greater Cleveland Regional Transit Authority in Cleveland, Ohio, United States. The line runs along Euclid Avenue from Public Square in downtown Cleveland to the Louis Stokes Station at Windermere in East Cleveland...

  • Coast Mountain Bus Company (Vancouver) and Translink (Vancouver)
    TransLink (Vancouver)
    TransLink is the organization responsible for the regional transportation network of Metro Vancouver in British Columbia, Canada, including public transport and major roads and bridges...

  • Copenhagen buses
    Movia (transit agency)
    Trafikselskabet Movia is the public transport agency that is responsible for buses and certain local railways in Copenhagen and the part of Denmark east of the Great Belt, covering the regions Sjælland and Hovedstaden, except for Bornholm. It does not own any buses and trains itself, but pays...

  • Innsbruck Public Transport
    Innsbruck
    - Main sights :- Buildings :*Golden Roof*Kaiserliche Hofburg *Hofkirche with the cenotaph of Maximilian I, Holy Roman Emperor*Altes Landhaus...

  • LACMTA Orange Line
  • MTA New York City Bus
    New York City Transit buses
    New York City Transit buses, marked on the buses MTA New York City Bus, is a bus service that operates in all five boroughs of New York City, employing over 4300 buses on 219 routes within the five boroughs of New York City in the United States...

     Select Bus Service
    Select Bus Service
    Select Bus Service , marked on the buses as +selectbusservice, is a brand used by MTA Regional Bus Operations for bus rapid transit service.-History:...

  • VIVA - York Region's Bus Rapid Transit
    Viva (bus rapid transit)
    Viva is a bus rapid transit service operating in York Region, Ontario, Canada. Viva service is integrated with York Region Transit's local bus service to operate as one regional transit system providing seamless transit service across York Region and connections to northern Toronto.Viva was...

     in the Regional Municipality of York in Ontario
    Ontario
    Ontario is a province of Canada, located in east-central Canada. It is Canada's most populous province and second largest in total area. It is home to the nation's most populous city, Toronto, and the nation's capital, Ottawa....

    , Canada
    Canada
    Canada is a North American country consisting of ten provinces and three territories. Located in the northern part of the continent, it extends from the Atlantic Ocean in the east to the Pacific Ocean in the west, and northward into the Arctic Ocean...

  • Ottawa, Ontario articulated buses
  • Paris Bus (RATP)
    Bus (RATP)
    RATP operates the majority of buses in Paris, and a significant number of lines in its suburbs. Other suburban lines are operated by private operators grouped in a consortium known as Optile ....

  • Pioneer Valley Transit Authority
    Pioneer Valley Transit Authority
    The Pioneer Valley Transit Authority oversees and coordinates public transportation in the Pioneer Valley of Western Massachusetts. Currently the PVTA offers fixed-route bus service as well as paratransit service for the elderly and disabled. The PVTA was created by Chapter 161B of the...

    's Amherst, MA-based (UMass Transit) fixed routes
  • San Francisco Municipal Railway
    San Francisco Municipal Railway
    The San Francisco Municipal Railway is the public transit system for the city and county of San Francisco, California. In 2006, it served with an operating budget of about $700 million...

     (all bus routes)
  • Tallinn Public Transport
    Public transport in Tallinn
    Public transport in Tallinn consists of bus, tram, trolleybus, train and ferry services. Bus routes are mainly operated by Tallinna Autobussikoondis , but since 1995 MRP Linna Liinid is also operating some lines. All trams and trolleys are operated by Tallinna Trammi- ja Trollibussikoondis...

  • RTA buses, Dubai

External links

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