Platform screen doors
Encyclopedia

Platform screen doors and platform edge doors (PEDs) at train or subway stations screen the platform
Railway platform
A railway platform is a section of pathway, alongside rail tracks at a train station, metro station or tram stop, at which passengers may board or alight from trains or trams. Almost all stations for rail transport have some form of platforms, with larger stations having multiple platforms...

 from the train
Train
A train is a connected series of vehicles for rail transport that move along a track to transport cargo or passengers from one place to another place. The track usually consists of two rails, but might also be a monorail or maglev guideway.Propulsion for the train is provided by a separate...

. They are a relatively new addition to many metro systems around the world, with some platform doors retrofitted rather than installed with the metro system itself. They are widely used in Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...

n and Europe
Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an metro systems. Cities with metro systems that employ platform screen doors are listed below.

Door types

Although the terms are often used interchangeably, platform screen doors are full height, total barriers between the station floor and ceiling, while platform edge doors are full height, but do not reach the ceiling and thus do not create a total barrier.

These door
Door
A door is a movable structure used to open and close off an entrance, typically consisting of a panel that swings on hinges or that slides or rotates inside of a space....

s help:
  • Prevent accidental falls off the platform onto the lower track area, suicide
    Suicide
    Suicide is the act of intentionally causing one's own death. Suicide is often committed out of despair or attributed to some underlying mental disorder, such as depression, bipolar disorder, schizophrenia, alcoholism, or drug abuse...

     attempts and homicide
    Homicide
    Homicide refers to the act of a human killing another human. Murder, for example, is a type of homicide. It can also describe a person who has committed such an act, though this use is rare in modern English...

    s by pushing.
  • Prevent or reduce wind felt by the passengers caused by the Piston effect
    Piston effect
    Piston effect refers to the forced air flow inside a tunnel caused by moving vehicles.-Cause of the Effect:Air in a tunnel is confined by the tunnel walls, hence the movement of air is restricted. In open air, when a vehicle travels along, air is being pushed and can move to any directions except...

     which could in some circumstances make people fall over
  • Reduce the risk of accidents, especially from service trains passing through the station at high speeds.
  • Improve climate control within the station (heating, ventilation, and air conditioning are more effective when the station is physically isolated from the tunnel).
  • Improve security - access to the tracks and tunnels is restricted.
  • Lower costs - eliminate the need for motormen 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...

     when used in conjunction with Automatic Train Operation
    Automatic train operation
    Automatic train operation ensures partial or complete automatic train piloting and driverless functions.Most systems elect to maintain a driver to mitigate risks associated with failures or emergencies....

    , thereby reducing manpower costs.
  • Prevent litter
    Litter
    Litter consists of waste products such as containers, papers, wrappers or faeces which have been disposed of without consent. Litter can also be used as a verb...

     build up on the track which can be a fire risk.

Automatic platform gate

Automatic platform gates (or half-height platform screen doors as referred to by some manufacturers) are chest-height sliding doors at the edge of railway platform
Railway platform
A railway platform is a section of pathway, alongside rail tracks at a train station, metro station or tram stop, at which passengers may board or alight from trains or trams. Almost all stations for rail transport have some form of platforms, with larger stations having multiple platforms...

s to prevent passengers from falling off the platform edge onto the railway tracks. Like full-height platform screen doors, these platform gates slide open or closed simultaneously with the train doors.

As compared to platform screen doors, these half-height platform gates are cheaper to install as they require less metallic framework for support. As such, some railway operators may prefer such an option to improve safety at railway platforms and, at the same time, keeping costs low and non-air-conditioned platforms naturally ventilated. However, these gates are less effective than full platform screen doors in preventing people from intentionally jumping onto the tracks.

These gates are firstly in practical use by Hong Kong metro system, 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...

 on Disneyland Resort Line
Disneyland Resort Line (MTR)
The Disneyland Resort Line is an MTR line connecting Yam O to the Hong Kong Disneyland Resort. It is the MTR's seventh line, and the world's first metro line designed to service a Disney theme park, and also the world's first driverless heavy transit line. There are only two stations on this...

 for their open-air stations design. The later design by other manufacturers, such as Kaba Gilgen AG, have their gates higher than the one installed on Disneyland Resort Line.

Examples

  • Beijing subway
    Beijing Subway
    The Beijing Subway is a rapid transit rail network that serves the urban and suburban districts of Beijing municipality. It is owned by the city of Beijing and has two operators, the wholly state owned Beijing Mass Transit Railway Operation Corp., which operates 12 lines, and the Beijing MTR...

    , China
    China
    Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

     - Line 5
    Line 5, Beijing Subway
    Line 5 of the Beijing Subway was Beijing's first subway with a north-south route. It runs for 27.6 km, in a near straight line, just east of the city centre from Tiantongyuan North in Changping District to Songjiazhuang in Fengtai District. It entered into operation on October 2007. Line...

  • Paris Métro
    Paris Métro
    The Paris Métro or Métropolitain is the rapid transit metro system in Paris, France. It has become a symbol of the city, noted for its density within the city limits and its uniform architecture influenced by Art Nouveau. The network's sixteen lines are mostly underground and run to 214 km ...

    , France
    France
    The French Republic , The French Republic , The French Republic , (commonly known as France , is a unitary semi-presidential republic in Western Europe with several overseas territories and islands located on other continents and in the Indian, Pacific, and Atlantic oceans. Metropolitan France...

     - Line 13
    Paris Metro Line 13
    Line 13 is one of the sixteen lines of the Paris Métro rapid transit system. The result of the fusion of the now-extinct Line B of the Nord-Sud Company and the old Line 14 of the CMP. Their creation was destined to be replaced by a north-south RER line before the reorganisation of the...

  • 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...

     Disneyland Resort Line
    Disneyland Resort Line (MTR)
    The Disneyland Resort Line is an MTR line connecting Yam O to the Hong Kong Disneyland Resort. It is the MTR's seventh line, and the world's first metro line designed to service a Disney theme park, and also the world's first driverless heavy transit line. There are only two stations on this...

    , Island Line
    Island Line (MTR)
    The Island Line is one of 10 lines of the MTR, the mass transit system in Hong Kong. It runs from Sheung Wan in the Central and Western District to Chai Wan in the Eastern District. The line first opened in 31 May 1985...

    , Kwun Tong Line
    Kwun Tong Line (MTR)
    The Kwun Tong Line is one of the ten lines of the MTR network in Hong Kong. It starts at Yau Ma Tei in West Kowloon and ends at Tiu Keng Leng in Tseung Kwan O, Sai Kung. It is indicated in green on the MTR map. During the morning rush hour, the Kwun Tong Line utilises 27 trains on the tracks...

    , Tsuen Wan Line
    Tsuen Wan Line (MTR)
    The Tsuen Wan Line is one of the ten lines of the metro network in Hong Kong's MTR. It is indicated in red on the MTR map.The Tsuen Wan Line starts at Central station on Hong Kong Island and runs through western Kowloon to the southwestern New Territories, where it ends at Tsuen Wan station....

    , 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...

  • Fukuoka City Subway
    Fukuoka City Subway
    The serves Fukuoka, Japan. It consists of three subway lines, the Kūkō, or Airport Line, the Hakozaki Line and the Nanakuma Line).The lines are operated by the . Unlike most other public operators in Japan, the company only operates subways without any bus lines....

    , Japan
    Japan
    Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...

  • Osaka Municipal Subway
    Osaka Municipal Subway
    is the metro network in the city of Osaka, Japan, forming an integral part of the extensive mass transit system of Greater Osaka , having 125 out of the 1,108 rail stations in the Osaka-Kobe-Kyoto region. In 2010 the greater Osaka region had 13 million rail passengers daily of which the Osaka...

     (Imazatosuji Line and Nagahori Tsurumi-ryokuchi Line), Japan
  • Tokyo Monorail
    Tokyo Monorail
    , officially the , is a monorail system connecting Haneda Airport in Ōta, Tokyo, Japan, to Hamamatsuchō Station in Minato, Tokyo. The trains operate along an elevated line that follows the coast of Tokyo Bay. The trip from the airport to Hamamatsuchō costs ¥470 each way.-History:The line opened in...

    , Tokyo Metro
    Tokyo Metro
    is one of two rapid transit systems making up the Tokyo subway system, the other being Toei. It is the most used subway system in the world in terms of annual passenger rides.-Organization:...

    , Toei Metro, Japan
  • Sentosa Express
    Sentosa Express
    Sentosa Express is a monorail line connecting Sentosa island to HarbourFront on the Singapore mainland across the waters.Built at a cost of S$140 million, development started in June 2003 and was completed in December 2006. The fully elevated 2.1-kilometre two-way line and three out of four...

    , Singapore
    Singapore
    Singapore , officially the Republic of Singapore, is a Southeast Asian city-state off the southern tip of the Malay Peninsula, north of the equator. An island country made up of 63 islands, it is separated from Malaysia by the Straits of Johor to its north and from Indonesia's Riau Islands by the...

  • Mass Rapid Transit
    Mass Rapid Transit (Singapore)
    The Mass Rapid Transit or MRT is a rapid transit system that forms the backbone of the railway system in Singapore, spanning the entire city-state. The initial section of the MRT, between Yio Chu Kang Station and Toa Payoh Station, opened in 1987 establishing itself as the second-oldest metro...

    , Singapore - Platform Screen Door, all lines
  • Taipei Metro, Taiwan
    Taiwan
    Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

     - Nangang Line
    Nangang Line (TRTS)
    The Taipei Metro Nangang Line is a high-capacity, underground rapid transit line on the Taipei Metro in Taipei, Taiwan. It has 12 stations, is -long and runs east-west through downtown starting in Zhongzheng and ending in Nangang, Taipei...

    , Tamsui Line

Brazil

The São Paulo Metro
São Paulo Metro
The São Paulo Metro is the principal rapid-transit system in the city of São Paulo and the largest in Brazil. It is also the second largest system in South America and the third largest in Latin America, behind Mexico City and Santiago....

 currently has five stations with platform screen doors (PSDs): Sacomã station (Line 2 - Green) opened on January 30, 2010 with this feature. On May 25, 2010 Faria Lima and Paulista stations (Line 4 - Yellow) also opened featuring PSDs, on August 21, 2010 Vila Prudente Station was opened with PSDs and on September 21, 2010 Tamanduateí Station was also opened with PSDs. All the future stations of the system will be inaugurated with PSDs, and it is planned to be installed in the old stations as well.

Canada

Toronto
Toronto
Toronto is the provincial capital of Ontario and the largest city in Canada. It is located in Southern Ontario on the northwestern shore of Lake Ontario. A relatively modern city, Toronto's history dates back to the late-18th century, when its land was first purchased by the British monarchy from...

 subway system
Toronto subway and RT
The Toronto subway and RT is a rapid transit system in Toronto, Ontario, Canada, consisting of both underground and elevated railway lines, operated by the Toronto Transit Commission . It was Canada's first completed subway system, with the first line being built under Yonge Street, which opened in...

 plans to begin the process of adding screen doors at select subway stations on the Yonge line beginning in 2013 and completion on the Yonge-University-Spadina line by 2015. The remaining Bloor-Danforth and Sheppard lines will not have screen doors until new train sets, dubbed the Toronto Rocket, begin running on these lines and all older cars are retired from the entire system. There are no plans for the Scarborough RT as the system's future is still under debate.

Screen doors are already in use at all three LINK Train stations at Toronto Pearson International Airport
Toronto Pearson International Airport
Toronto Pearson International Airport is an international airport serving Toronto, Ontario, Canada; its metropolitan area; and the Golden Horseshoe, an urban agglomeration that is home to 8.1 million people – approximately 25% of Canada's population...

 in Mississauga, Ontario
Mississauga, Ontario
Mississauga is a city in Southern Ontario located in the Regional Municipality of Peel, and in the western part of the Greater Toronto Area. With an estimated population of 734,000, it is Canada's sixth-most populous municipality, and has almost doubled in population in each of the last two decades...

.

China

A number of Chinese cities have started installing platform screen doors. Systems such as Shanghai Metro
Shanghai Metro
The Shanghai Metro is the urban rapid transit system of China's largest city, Shanghai. The system incorporates both subway and light rail lines. It opened in 1995, making Shanghai the third city in Mainland China, after Beijing and Tianjin, to have a rapid transit system...

, Beijing Subway
Beijing Subway
The Beijing Subway is a rapid transit rail network that serves the urban and suburban districts of Beijing municipality. It is owned by the city of Beijing and has two operators, the wholly state owned Beijing Mass Transit Railway Operation Corp., which operates 12 lines, and the Beijing MTR...

, Guangzhou Metro
Guangzhou Metro
Guangzhou Metro is the metro system of the city of Guangzhou in Guangdong Province of China. It is operated by the state-owned Guangzhou Metro Corporation and was the fourth metro system to be built in mainland China, after those of Beijing, Tianjin and Shanghai.The earliest effort of preparation...

, and Shenzhen Metro
Shenzhen Metro
The Shenzhen Metro is the subway or underground system for the city of Shenzhen in Guangdong province, China. The system opened on 28 December 2004, making Shenzhen the seventh city in mainland China to have a subway after Beijing, Tianjin, Shanghai, Guangzhou, Dalian, and Wuhan. The Shenzhen...

 have already adapted the platform screen doors.

Hong Kong
In 1998, the Tung Chung Line and Airport Express
Airport Express (MTR)
The Airport Express is one of the lines of the Mass Transit Railway serving Hong Kong. It links the principal urban areas of Hong Kong to Hong Kong International Airport and the associated AsiaWorld-Expo exhibition and convention centre....

 saw the earliest operations of platform screen doors in Hong Kong.
In 2000, the MTR Corporation
MTR Corporation
MTR Corporation Limited is a company listed on the Hong Kong Exchange and included in the Hang Seng Index. MTR owns and runs the Hong Kong MTR metro system, and is also a major property developer and landlord in Hong Kong...

 began a six year programme to add 2,960 pairs of platform screen doors at 30 underground 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...

 stations on the Kwun Tong Line
Kwun Tong Line (MTR)
The Kwun Tong Line is one of the ten lines of the MTR network in Hong Kong. It starts at Yau Ma Tei in West Kowloon and ends at Tiu Keng Leng in Tseung Kwan O, Sai Kung. It is indicated in green on the MTR map. During the morning rush hour, the Kwun Tong Line utilises 27 trains on the tracks...

, Tsuen Wan Line
Tsuen Wan Line (MTR)
The Tsuen Wan Line is one of the ten lines of the metro network in Hong Kong's MTR. It is indicated in red on the MTR map.The Tsuen Wan Line starts at Central station on Hong Kong Island and runs through western Kowloon to the southwestern New Territories, where it ends at Tsuen Wan station....

, and Island Line
Island Line (MTR)
The Island Line is one of 10 lines of the MTR, the mass transit system in Hong Kong. It runs from Sheung Wan in the Central and Western District to Chai Wan in the Eastern District. The line first opened in 31 May 1985...

. This was the world's first railway to retrofit Platform Screen Doors on a transit system already in operation. The project was completed in October 2005. Platform screen doors are now operated in 51 stations. The world's longest set of platform screen doors are located in East Tsim Sha Tsui Station.

The West Rail Line was built by the Kowloon-Canton Railway Corporation
Kowloon-Canton Railway Corporation
The Kowloon–Canton Railway Corporation was established in 1982 under the Kowloon–Canton Railway Corporation Ordinance for the purposes of operating the Kowloon–Canton Railway , and to construct and operate other new railways...

 (KCRC) before the MTR-KCR merger. During the construction of this railway line, platform screen doors were installed on all the platforms in all the stations along the railway line.

Following the detailed design and manufacturing of automatic platform gates, retrofitting works on the 8 Urban Line above ground stations, namely Heng Fa Chuen, Chai Wan, Kowloon Bay, Ngau Tau Kok, Kwun Tong, Kwai Fong, Kwai Hing and Tsuen Wan, have started in 2010, and are expected to be completed by the end of 2011, one year earlier than originally scheduled.

Denmark

The 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...

 uses Westinghouse platform screen doors on all underground stations platforms.

France

The Paris Métro
Paris Métro
The Paris Métro or Métropolitain is the rapid transit metro system in Paris, France. It has become a symbol of the city, noted for its density within the city limits and its uniform architecture influenced by Art Nouveau. The network's sixteen lines are mostly underground and run to 214 km ...

 line 14
Paris Metro Line 14
Line 14 of the Paris Métro system connects the stations Saint Lazare and Olympiades on a north-west south-east diagonal across the centre of Paris. It is the twelfth busiest of sixteen lines on the network, and as of 2011, the only one to be operated completely automatically; the second such line...

 was built with platform screen doors. As of november 2011, line 1
Paris Metro Line 1
Paris Métro Line 1 is one of the sixteen lines composing the Paris Métro . It connects the La Défense – Grande Arche and Château de Vincennes stations. With a 16.5 km length, it constitutes an "East-West" route transportation important for the City of Paris...

 has been retrofitted with platform screen doors, in preparation for full driverless automation in 2012.

In addition, all lines of the VAL automated subway system are also equipped with platform screen doors at every station. Those include Toulouse
Toulouse Metro
The Toulouse metro serves the city of Toulouse, France, and some of the surrounding area. The city's public transport system was initially managed by Société d'économie mixte des voyageurs de l'agglomération toulousaine , which was a company that was 80% owned by local government bodies and 20%...

, Rennes
Rennes Metro
Opened on 15 March 2002, the metro in Rennes is based on the Siemens Transportation Systems VAL technology. There is one line, the 9.4-km A Line, which runs north-west to south-east from J.F...

 and Lille
Lille Metro
The Lille metro is a driverless metro in and around Lille, France. The system was inaugurated on 25 April 1983 and was the first to use VAL system....

 subways, as well as the CDGVAL
CDGVAL
CDGVAL is a free automatic shuttle rail service at Paris-Charles de Gaulle Airport consisting in two lines : a first line which opened on 4 April 2007 and a second on 27 June 2007...

 and Orlyval
Orlyval
Orlyval is a small automatic metro which runs a shuttle service to Paris's Orly Airport from the RER network, with which it connects at Antony station on line RER B.It was opened on 2 October 1991, the second line to use the VAL automatic metro....

 airport shuttles.

India

Platform screen doors has been used in all the platforms on Delhi Airport Metro Express, which is a Delhi Metro
Delhi Metro
Delhi Metro is a rapid transit system serving Delhi, Gurgaon, Noida and Ghaziabad in the National Capital Region of India. It is one of the largest metro networks in the world. The network consists of six lines with a total length of with 142 stations of which 35 are underground...

 line which links New Delhi Metro Station to Dwarka Sector 21, linking the Indira Gandhi International Airport
Indira Gandhi International Airport
Indira Gandhi International Airport is the primary international airport of the National Capital Region of Delhi, India, situated in West Delhi, 16 km southwest of New Delhi city centre. Named after Indira Gandhi, the former Prime Minister of India, it is the busiest airport in India in...

 at a speed of 135 kmph. There has been plan to install platform screen doors on Line 1 and Line 2 of the Kolkata Metro
Kolkata Metro
The Kolkata Metro or Calcutta Metro is a mass rapid transit system serving the city of Kolkata and the districts of South 24 Parganas and North 24 Parganas in Indian state of West Bengal. The network consists of one operational line and five lines currently under construction...

.

Japan

The Tokyo Metro Namboku Line
Tokyo Metro Namboku Line
The is a subway line owned and operated by Tokyo Metro in Tokyo, Japan. Its name literally means South-North Line. The line runs between Meguro in Shinagawa and Akabane-Iwabuchi in Kita...

 is fitted with platform screen doors, as is the Kyoto Municipal Subway
Kyoto Municipal Subway
is the metro network in the city of Kyoto, Japan. It is operated by Kyoto Municipal Transportation Bureau. It has two lines.-Lines:- External links :**...

 Tōzai Line.

South Korea

Yongdu Station
Yongdu Station
Yongdu Station is a station on the Seongsu Branch of the Seoul Subway Line 2.This station is located in Yongdu-dong, Dongdaemun-gu, Seoul.-References:...

 of Seoul Subway Line 2
Seoul Subway Line 2
Seoul Subway Line 2 is a circular line of the Seoul Metropolitan Subway. The line running clockwise is called the "inner circle line" and the counter-clockwise line is called the "outer circle line." This is Seoul's most heavily used line, and the longest circular subway line in the world...

 was the first station on the Seoul Subway to feature platform screen doors; the station opened in October 2005. Since then many underground stations have since been opened or retrofitted with platform screen doors. By the end of 2009, all 289 stations operated by Seoul Metro
Seoul Metro
Seoul Metro is a public corporation which runs the Seoul Subway Lines 1 to 4.From 1970 to 2006, it was called Seoul Metropolitan Subway Corporation.-Lines:- See also :* Korail* Seoul Metropolitan Rapid Transit Corporation...

, SMRT
Seoul Metropolitan Rapid Transit Corporation
Seoul Metropolitan Rapid Transit Corporation was established in 1994 to operate the Seoul Subway lines 5, 6, 7, 8 in Seoul, South Korea.The corporation operates a total of 201 subway trains at 148 stations on lines 5-8. The operation intervals are from 2.5–6 minutes during rush hours and 5–10...

, and Seoul Metro 9 in Seoul Metropolitan Area are equipped with platform screen doors. However, not all stations operated by Korail
Korail
Korea Railroad Corporation , promoted as Korail , is the national railroad operator in South Korea.Korail operates passenger and freight trains throughout South Korea...

 in Seoul Metropolitan Area have been installed platform screen doors yet. As of 2010, 24%, 11%, 38%, 50%, and 100% of subway stations are equipped with platform screen doors in Busan
Busan
Busan , formerly spelled Pusan is South Korea's second largest metropolis after Seoul, with a population of around 3.6 million. The Metropolitan area population is 4,399,515 as of 2010. It is the largest port city in South Korea and the fifth largest port in the world...

, Daegu
Daegu
Daegu , also known as Taegu, and officially the Daegu Metropolitan City, is a city in South Korea, the fourth largest after Seoul, Busan, and Incheon, and the third largest metropolitan area in the country with over 2.5 million residents. The city is the capital and principal city of the...

, Incheon
Incheon
The Incheon Metropolitan City is located in northwestern South Korea. The city was home to just 4,700 people when Jemulpo port was built in 1883. Today 2.76 million people live in the city, making it Korea’s third most populous city after Seoul and Busan Metropolitan City...

, Gwangju
Gwangju
Gwangju is the sixth largest city in South Korea. It is a designated metropolitan city under the direct control of the central government's Home Minister...

, and Daejeon
Daejeon
Daejeon is South Korea's fifth largest metropolis and the provincial capital of Chungnam. Located in the center of the country, Daejeon had a population of over 1.5 million in 2010. It is at the crossroads of Gyeongbu railway, Honam railway, Gyeongbu Expressway, and Honam Expressway. Within the...

 respectively. The platform screen door installed in Nokdong Station on Gwangju Subway has a rare and distinguishable form, the rope-based platform screen. A set of ropes blocks rail from platform, and when train is arrived, the rope screen ascends to allow passage.

Russia

Park Pobedy
Park Pobedy (Saint Petersburg Metro)
Park Pobedy is a station on the Moskovsko-Petrogradskaya Line of the Saint Petersburg Metro. It was opened on April 29, 1961. An above-ground vestibule was designed by A.S. Getskin and V.P. Shuvalova. This station was the first station in the world with Platform screen doors....

 (Russian: Парк Побе́ды) is a station of the Saint Petersburg Metro
Saint Petersburg Metro
The Saint Petersburg Metro is the underground railway system in Saint Petersburg and Leningrad Oblast, Russia. It has been open since November 15, 1955.Formerly known as the V.I...

 that was the first station in the world with screen doors. The station was opened in 1961. Later the other nine stations of this type were built in Saint Petersburg
Saint Petersburg
Saint Petersburg is a city and a federal subject of Russia located on the Neva River at the head of the Gulf of Finland on the Baltic Sea...

 (Leningrad
Leningrad
Leningrad is the former name of Saint Petersburg, Russia.Leningrad may also refer to:- Places :* Leningrad Oblast, a federal subject of Russia, around Saint Petersburg* Leningrad, Tajikistan, capital of Muminobod district in Khatlon Province...

): Petrogradskaya
Petrogradskaya
Petrogradskaya is a station on the Moskovsko-Petrogradskaya Line of the Saint Petersburg Metro.The station was opened on July 1, 1963. The name was given by its location on Petrograskaya Storona, one of the historical districts of Saint Petersburg....

 (Russian: Петроградская), Vasileostrovskaya
Vasileostrovskaya
Vasileostrovkaya - station of Nevsko-Vasileostrovskaya Line in St Petersburg.Named after Vasili Island , where the station is located.-External links:*...

 (Russian: Василеостровская), Gostiny Dvor
Gostiny Dvor (Saint Petersburg Metro)
Gostiny Dvor is a station on the Nevsko-Vasileostrovskaya Line of the Saint Petersburg Metro. It was designed by architect C.G. Mayofis, E.S. Belyat, A.K. Andreyev, Ya.E. Moskalenko and C.P Schyukin and opened on November 3, 1967. It has two exits - one at the intersection between Griboyedov...

 (Russian: Гостиный двор), Mayakovskaya
Mayakovskaya (Saint Petersburg Metro)
Mayakovskaya is a station on the Nevsko-Vasileostrovskaya Line of Saint Petersburg Metro, opened on November 3, 1967, and named after Russian poet Vladimir Mayakovsky. The main surface vestibule is situated on Nevsky Prospekt. Mayakovskaya is connected to the station Ploshchad Vosstaniya of the...

 (Russian: Маяковская), Ploshchad Alexandra Nevskogo I (Russian: Площадь Александра Невского-1), Moskovskaya
Moskovskaya (Saint Petersburg Metro)
Moskovskaya is a station on the Moskovsko-Petrogradskaya Line of the Saint Petersburg Metro. It was opened on December 25, 1969. It was designed by K.N. Afonskya, A.C. Getskin and V.P. Shuvalova, I.E. Sergeyeva....

 (Russian: Московская), Yelizarovskaya
Yelizarovskaya (Saint Petersburg Metro)
Yelizarovskaya is a station on the Nevsko-Vasileostrovskaya Line of Saint Petersburg Metro, opened on December 21, 1970....

 (Russian: Елизаровская), Lomonosovskaya
Lomonosovskaya (Saint Petersburg Metro)
Lomonosovskaya is a station on the Nevsko-Vasileostrovskaya Line of Saint Petersburg Metro, opened on December 21, 1970....

 (Russian: Ломоносовская), Zvyozdnaya
Zvyozdnaya
Zvyozdnaya is a station on the Moskovsko-Petrogradskaya Line of the Saint Petersburg Metro. It was opened on December 25, 1972. It was designed by K.N. Afonskya, A.C. Getskin and V.P. Shuvalova...

 (Russian: Звёздная).
There was an electronic device to ensure that the train stopped with its doors adjacent to the platform doors; they were installed so that driverless trains could eventually be used on the line. Unlike other platform screen doors, which are lightweight units with extensive glazing installed a normal platform edge, the St Petersburg units give the appearance of a solid wall with heavyweight doorways and solid steel sliding doors, like exist for a bank of elevators in a large building, and the train cannot be seen entering from the platform; passengers become familiar with the sound alone to indicate a train arrival.

Singapore

The Singapore Mass Rapid Transit
Mass Rapid Transit (Singapore)
The Mass Rapid Transit or MRT is a rapid transit system that forms the backbone of the railway system in Singapore, spanning the entire city-state. The initial section of the MRT, between Yio Chu Kang Station and Toa Payoh Station, opened in 1987 establishing itself as the second-oldest metro...

 (MRT) was the first rapid transit
Rapid transit
A rapid transit, underground, subway, elevated railway, metro or metropolitan railway system is an electric passenger railway in an urban area with a high capacity and frequency, and grade separation from other traffic. Rapid transit systems are typically located either in underground tunnels or on...

 system in Asia to incorporate platform screen doors in its stations in 1987. Full height platform screen doors are installed at all existing underground MRT stations in Singapore and all future underground MRT stations. Half height platform screen doors will be retrofitted into all existing elevated MRT stations by 2012 (starting with three elevated MRT stations by 2009), as well as all future elevated MRT stations. The LRT Station at Sengkang
Sengkang LRT Line
The Sengkang LRT Line is a 10.7 km light rail line which partly opened on 18 January 2003. It is the second LRT system in Singapore and is fully automated and currently operated by SBS Transit. The line uses the Crystal Mover rolling stock supplied by Mitsubishi Heavy Industries...

 also has platform screen doors installed.

There are two series of the full height platform screen doors in use. The first series was installed at all underground stations along the North South Line
North South MRT Line
The North South Line was the 1st Mass Rapid Transit line in Singapore. The line is currently 44 km long with 25 stations, and is operated by SMRT Corporation...

 and the East West Line
East West MRT Line
The East West Line was the 2nd Mass Rapid Transit line in Singapore. The line is currently 49.2 km long with 35 stations , making it the longest MRT line in Singapore. It takes about 63 minutes to travel from one end to the other...

 from 1987 to the completion of the initial system in 1990. The second series of platform screen doors sporting a sleeker design, producing less sound when the doors were opened and closed, and incorporating more glass were installed in the Changi Airport MRT Station
Changi Airport MRT Station
Changi Airport MRT Station was opened on 8 February 2002 as one of the terminal Mass Rapid Transit stations for the East West Line, and located in between Singapore Changi Airport's Terminal 2 and Terminal 3. This is one of the four MRT stations that have fare gates on the same level as the...

 which opened in 2002. All stations in the fully underground North East Line
North East MRT Line
The North East MRT Line is the third Mass Rapid Transit line in Singapore and the world's second longest fully underground, automated and driverless, rapid transit line after Singapore's Circle MRT Line. The line is 20 km long with 16 stations and operated by SBS Transit. Travelling from one end...

, which opened in 2003, also sport these new doors. The Circle Line
Circle MRT Line
The Circle Line is Singapore's fourth Mass Rapid Transit line, operated by SMRT Corporation. This underground line is currently long with 28 stations and is fully automatically operated...

 also features second-generation platform screen doors on all of its stations. These doors were also installed on the North South Line
North South MRT Line
The North South Line was the 1st Mass Rapid Transit line in Singapore. The line is currently 44 km long with 25 stations, and is operated by SMRT Corporation...

 platform in the Bishan MRT Station
Bishan MRT Station
Bishan MRT Station is a Singapore Mass Rapid Transit interchange station along the North South Line and the Circle Line that serves the Bishan community, especially that of Bishan East. The station is located in Central Singapore, along Bishan Road, close to the town centre of Bishan...

 in 2009 after the opening of the Circle line platforms there.

Considered a novelty at the time of its installation, it was introduced primarily to minimise hefty air-conditioning costs, especially since elevated stations are not air-conditioned, and hence are much more economical to run in comparison. Since then the safety aspects of these doors have become more important, as highlighted by a series of high profile incidents where individuals were injured or killed by oncoming trains since the year 2002, all occurring on elevated stations where no screen doors exist. The Land Transport Authority
Land Transport Authority
The Land Transport Authority is a statutory board under the Ministry of Transport of the Singapore Government.-History:...

 reports that there have been more than 220 cases of commuters trespassing on the tracks between 1991 and 15 September 2004, of which 87 percent were deliberate acts of trespass. Nine fatalities were recorded during this period, of which only one was an accident. Since September 2004 there have been six fatalities occurring on elevated MRT and LRT stations.

The announcement "Please mind the platform gap" or "Please mind the gap" was used in underground stations. However, elevated stations does not warn this announcement.

Spain

Half platform screens were installed first in FGC
Ferrocarrils de la Generalitat de Catalunya
Ferrocarrils de la Generalitat de Catalunya , or FGC, is a railway company which operates several unconnected lines in Catalonia, Spain....

 Provenza
Provenza
Provenza may refer to:* Paul Provenza, American actor, comedian, and filmmaker* Louie Provenza, fictional character from The Closer...

 (Barcelona) station around 1995. Later doors were tested on Barcelona Metro
Barcelona Metro
The Barcelona Metro , part of the public transportation system of Barcelona, Catalonia, is an extensive network of electrified railways that run underground in central Barcelona and above ground into the city's suburbs. Since July 31, 2010, Barcelona Metro system consists of 11 lines with 165...

 line 11 before fitting them on all stations for the new lines 9 and 10, which operate driverless.

Switzerland

Zurich International Airport's Skymetro
Skymetro
Skymetro is an airport people mover at Zurich International Airport in Switzerland which opened in 2003.The 1.1-kilometre long system connects the airport's main Airside Center with Terminal E, taking just under three minutes to travel in each direction. Rather than on-board motors, it is...

 shuttle between the main building (hosting terminals A and B) and the detached terminal E has glass screen doors separating the tracks from the passenger hall platforms at both ends.

Taiwan (Republic of China)

Platform screen doors were installed from the beginning with the opening of the Wenshan Line (first metro line on Taiwan and in the Republic of China
Republic of China
The Republic of China , commonly known as Taiwan , is a unitary sovereign state located in East Asia. Originally based in mainland China, the Republic of China currently governs the island of Taiwan , which forms over 99% of its current territory, as well as Penghu, Kinmen, Matsu and other minor...

) on the Taipei Metro
Taipei Rapid Transit System
The Taipei Metro, more commonly known as the MRT or formally as the Taipei Rapid Transit System, is a rapid transit system serving metropolitan Taipei in Taiwan. The system is built and operated by the Taipei Rapid Transit Corporation and consists of 89 stations and of revenue track...

 in 1996. Since then, the Neihu Line
Neihu Line (TRTS)
The Taipei Metro Neihu Line is a medium-capacity rapid transit system and runs on an elevated corridor except near Songshan Airport and Dazhi. The line's service length is and it is joined to the Wenshan Line at Zhongshan Junior High School Station, providing direct service through Neihu, Nangang,...

, Xinzhuang Line
Xinzhuang Line (TRTS)
The Taipei Metro Xinzhuang Line is a high-capacity underground extension of the Zhonghe Line on the Taipei Metro currently under construction in Taiwan. As of September 2010, it is 91.81% complete...

, Luzhou Line and Taipei Nangang Exhibition Center Station
Taipei Nangang Exhibition Center Station
The Taipei Metro Taipei Nangang Exhibition Center Station is located in Nangang District, Taipei, Taiwan at the south end of Nangang Business Park...

 Nangang Line
Nangang Line (TRTS)
The Taipei Metro Nangang Line is a high-capacity, underground rapid transit line on the Taipei Metro in Taipei, Taiwan. It has 12 stations, is -long and runs east-west through downtown starting in Zhongzheng and ending in Nangang, Taipei...

 Platform are all equipped with them. Future extensions and lines will also be equipped with them.

All underground stations on the Kaohsiung MRT
Kaohsiung Mass Rapid Transit
The Kaohsiung Mass Rapid Transit System is a rapid transit system covering metropolitan Kaohsiung, Taiwan. Construction of the KMRT started in October 2001. The Red Line and the Orange Line opened on March 9 and September 14, 2008, respectively...

 system have platform screen doors installed.

United Kingdom

The Jubilee Line
Jubilee Line
The Jubilee line is a line on the London Underground , in the United Kingdom. It was built in two major sections—initially to Charing Cross, in central London, and later extended, in 1999, to Stratford, in east London. The later stations are larger and have special safety features, both aspects...

 extension
Jubilee Line Extension
The Jubilee Line Extension is the extension of the London Underground Jubilee line from to through south and east London. An eastward extension of the Jubilee line was first proposed in the 1970s and a modified route was constructed during the 1990s...

 project saw platform edge doors installed on its new stations. They were designed primarily to reduce the movement of air caused by emergency ventilation fans which activate in event of a fire, or under test conditions. They were also built as a barrier to prevent people falling or jumping onto the tracks.

The Jubilee Line
Jubilee Line
The Jubilee line is a line on the London Underground , in the United Kingdom. It was built in two major sections—initially to Charing Cross, in central London, and later extended, in 1999, to Stratford, in east London. The later stations are larger and have special safety features, both aspects...

 PEDS were produced by Westinghouse.

PEDs will also be used widely across the Crossrail project
Crossrail
Crossrail is a project to build a major new railway link under central London. The name refers to the first of two routes which are the responsibility of Crossrail Ltd. It is based on an entirely new east-west tunnel with a central section from to Liverpool Street station...

 now under construction in London due to open in 2018.

United States

In Chicago
Chicago
Chicago is the largest city in the US state of Illinois. With nearly 2.7 million residents, it is the most populous city in the Midwestern United States and the third most populous in the US, after New York City and Los Angeles...

, the Airport Transport System (ATS) operates 24 hours a day at O'Hare International Airport
O'Hare International Airport
Chicago O'Hare International Airport , also known as O'Hare Airport, O'Hare Field, Chicago Airport, Chicago International Airport, or simply O'Hare, is a major airport located in the northwestern-most corner of Chicago, Illinois, United States, northwest of the Chicago Loop...

. ATS is a 2.5 mile long (4 km) line that operates between the four current terminals at the airport and parking areas. Each station is fully enclosed with platform screen doors allowing access to the fully automated trains.

In New York City, the Port Authority of New York and New Jersey
Port Authority of New York and New Jersey
The Port Authority of New York and New Jersey is a bi-state port district, established in 1921 through an interstate compact, that runs most of the regional transportation infrastructure, including the bridges, tunnels, airports, and seaports, within the Port of New York and New Jersey...

 utilizes full height platform screen doors at all of its Airtrain JFK
AirTrain JFK
AirTrain JFK is a 3-line, -long people mover system and elevated railway in New York City providing service to John F. Kennedy International Airport...

 and Airtrain Newark
AirTrain Newark
AirTrain Newark is a 3-mile monorail system connecting Newark Liberty International Airport to the Newark Liberty International Airport train station on the Northeast Corridor rail line of New Jersey Transit and Amtrak...

 stations. Several planned stations in the New York City Subway
New York City Subway
The New York City Subway is a rapid transit system owned by the City of New York and leased to the New York City Transit Authority, a subsidiary agency of the Metropolitan Transportation Authority and also known as MTA New York City Transit...

 may possibly feature platform screen doors. This includes the Flushing line extension
7 Subway Extension
The 7 Subway Extension — Hudson Yards Rezoning and Development Program is the plan to extend the IRT Flushing Line of the New York City Subway, which carries the 7 train service, westward from its current terminus at Times Square, adding one new station at 34th Street – Eleventh Avenue...

, and the Second Avenue Subway
Second Avenue Subway
The Second Avenue Subway is a planned rapid transit subway line, part of the New York City Subway system. Phase I, consisting of two miles of tunnel and three stations, is currently under construction underneath Second Avenue in the borough of Manhattan.A plan for more than 75 years, the Second...

.

Automated people movers, systems that ferry passengers across large distances they would otherwise walk, make use of platform screen doors. These systems are common at airports. The Las Vegas Monorail
Las Vegas Monorail
The Las Vegas Monorail is a monorail mass transit system located on the Las Vegas Strip, in Clark County, Nevada, United States. It connects the unincorporated communities of Paradise and Winchester, and does not actually enter the City of Las Vegas. It is owned and operated by the Las Vegas...

 system has these doors as well.

Accidents

On 15 July 2007 in Shanghai
Shanghai
Shanghai is the largest city by population in China and the largest city proper in the world. It is one of the four province-level municipalities in the People's Republic of China, with a total population of over 23 million as of 2010...

, platform-edge doors led to a fatal accident. A man tried to force his way onto a crowded train at the station for the Shanghai Indoor Stadium
Shanghai Indoor Stadium (Shanghai Metro)
Shanghai Indoor Stadium is the name of an interchange station between Lines 1 and 4 of the Shanghai Metro.-Name:The Chinese name of this station refers to the nearby Shanghai Indoor Stadium...

, but failed. When the doors closed, he was sandwiched between closed doors and pulled under the train, leading to his death.

External links

The source of this article is wikipedia, the free encyclopedia.  The text of this article is licensed under the GFDL.
 
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