109-645: The Toei Ōedo Line ( 都営地下鉄大江戸線 , Toei Chikatetsu Ōedo-sen ) is a subway line in Tokyo , Japan, operated by the Tokyo Metropolitan Bureau of Transportation (Toei). It commenced full operations on December 12, 2000; using the Japanese calendar this reads "12/12/12" as the year 2000 equals Heisei 12. The line is completely underground, making it the second-longest railway tunnel in Japan after
218-562: A Metropolitan train overturned the third rail on the District Railway, requiring all Metropolitan trains to be modified before running again on the District lines. A fully electric service began on 24 September, initially with six-car trains, later reduced to four-car. The Metropolitan trains were soon modified to enclose the gated end and eventually to add sliding doors in the middle. Trains were increased to five cars in 1918 and
327-444: A Signal Migration Area (SMA), and are located on the line as follows: 51°30′56″N 000°10′32″W / 51.51556°N 0.17556°W / 51.51556; -0.17556 ( 36 - Paddington station (District line platforms) ) The line then continues to Edgware Road where trains terminate, then reverse to traverse the loop in an anticlockwise direction to Hammersmith. Owing to its historically circular nature,
436-425: A body of water), which are potential congestion sites but also offer an opportunity for transfers between lines. Ring lines provide good coverage, connect between the radial lines and serve tangential trips that would otherwise need to cross the typically congested core of the network. A rough grid pattern can offer a wide variety of routes while still maintaining reasonable speed and frequency of service. A study of
545-454: A code for its stations. Unlike that of Singapore's MRT, it is mostly numbers. Based on the line number, for example Sinyongsan station, is coded as station 429. Being on Line 4, the first number of the station code is 4. The last two numbers are the station number on that line. Interchange stations can have multiple codes. Like City Hall station in Seoul which is served by Line 1 and Line 2. It has
654-651: A code of 132 and 201 respectively. The Line 2 is a circle line and the first stop is City Hall, therefore, City Hall has the station code of 201. For lines without a number like Bundang line it will have an alphanumeric code. Lines without a number that are operated by KORAIL will start with the letter 'K'. With widespread use of the Internet and cell phones globally, transit operators now use these technologies to present information to their users. In addition to online maps and timetables, some transit operators now offer real-time information which allows passengers to know when
763-497: A connecting tunnel to the Asakusa Line near Shiodome Station . Because of differences in infrastructure and technology used preventing trains on either line from accessing the other, a special Toei Class E5000 locomotive powers these ferry runs during overnight hours when the subway is closed. The Ōedo Line was first proposed in 1968 as an incomplete loop line from Shinjuku around northern and eastern Tokyo to Azabu. This plan
872-583: A conventional track is often provided in case of flat tires and for switching . There are also some rubber-tired systems that use a central guide rail , such as the Sapporo Municipal Subway and the NeoVal system in Rennes , France. Advocates of this system note that it is much quieter than conventional steel-wheeled trains, and allows for greater inclines given the increased traction of
981-405: A dedicated right-of-way are typically used only outside dense areas, since they create a physical barrier in the urban fabric that hinders the flow of people and vehicles across their path and have a larger physical footprint. This method of construction is the cheapest as long as land values are low. It is often used for new systems in areas that are planned to fill up with buildings after the line
1090-418: A large number of factors, including geographical barriers, existing or expected travel patterns, construction costs, politics, and historical constraints. A transit system is expected to serve an area of land with a set of lines , which consist of shapes summarized as "I", "L", "U", "S", and "O" shapes or loops. Geographical barriers may cause chokepoints where transit lines must converge (for example, to cross
1199-652: A large part of the network, for example, in outer suburbs, runs at ground level. In most of Britain , a subway is a pedestrian underpass . The terms Underground and Tube are used for the London Underground . The North East England Tyne and Wear Metro , mostly overground, is known as the Metro . In Scotland , the Glasgow Subway underground rapid transit system is known as the Subway . In Ireland ,
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#17327870829851308-452: A line is obtained by multiplying the car capacity, the train length, and the service frequency . Heavy rapid transit trains might have six to twelve cars, while lighter systems may use four or fewer. Cars have a capacity of 100 to 150 passengers, varying with the seated to standing ratio – more standing gives higher capacity. The minimum time interval between trains is shorter for rapid transit than for mainline railways owing to
1417-615: A metro. In Spain, such systems are present in Madrid , Barcelona , Bilbao and Valencia . In Portugal, Lisbon has a metro. The Italian cities of Catania , Genoa , Milan , Naples , Rome and Turin also have metro lines. In Germany and Austria they rapid transit is known as U-Bahn , which are often supported by S-Bahn systems. In Germany, U-Bahn systems exist in Berlin , Hamburg , Munich and Nuremberg , while in Austria such
1526-465: A programme planned to increase peak-hour capacity on the line by 27 per cent by the end of 2023. A single control room for the sub-surface railway opened at Hammersmith on 6 May 2018, and Communications Based Train Control (CBTC) provided by Thales will progressively replace 'fixed block' signalling equipment dating back to the 1940s. The rollout of CBTC has been split into sections, each known as
1635-588: A rail outside the running rail at +420 V , giving a potential difference of 630 V . The running rails are not electrified. Much of the 2-mile-35-chain (3.9 km) double track railway from the Hammersmith terminus to Westbourne Park station is on a 20-foot (6.1 m) high brick viaduct. East of Westbourne Park the line passes beneath the Great Western Main Line before resurfacing at Royal Oak station and running alongside
1744-470: A rapid transit setting. Circle line (London Underground) The Circle line is a spiral-shaped London Underground line, running from Hammersmith in the west to Edgware Road and then looping around central London back to Edgware Road. The railway is below ground in the central section and on the loop east of Paddington . Unlike London's deep-level lines , the Circle line tunnels are just below
1853-577: A shuttle service from the Hammersmith & City line to Addison Road, now Kensington (Olympia), until 1940. The Midland Railway briefly ran a super outer circle from St Pancras to Earl's Court from 1878 to 1880. London Overground now runs services between Clapham Junction, Willesden Junction and Dalston Junction and between Dalston Junction and Clapham Junction. Wooden carriages were originally hauled by steam locomotives leading to smoke-filled stations and carriages, unpopular with passengers. At
1962-411: A simple loop with 27 stations and 12.89 miles (20.75 km) of track. In 2006, there were fourteen trains in service on the line with an interval between trains of 8 + 1 ⁄ 2 minutes during peak hours and 8 minutes off-peak; the minimum running time around the circle off-peak was 51 + 1 ⁄ 2 minutes, although timetabled stops at stations extended this. In December 2009,
2071-477: A single circular direction. Equally, services were further disrupted due to petty squabbles between the two rivals including an incident whereby the Metropolitan Railway forcibly removed (using three trains) the District Railway's parked carriages which had been chained to the track. As well as the inner circle, other routes circumnavigated London, although these were not complete loops. From 1872,
2180-565: A specialized transit police may be established. These security measures are normally integrated with measures to protect revenue by checking that passengers are not travelling without paying. Some subway systems, such as the Beijing Subway , which is ranked by Worldwide Rapid Transit Data as the "World's Safest Rapid Transit Network" in 2015, incorporates airport-style security checkpoints at every station. Rapid transit systems have been subject to terrorism with many casualties, such as
2289-608: A system exists in Vienna . In addition, the small, car-free town of Serfaus in the Austrian state of Tyrol also features a short U-Bahn line. There are no U-Bahn systems in the German-speaking part of Switzerland, but the city of Lausanne has its own, small metro system. In Zurich, Switzerland's largest city, a project for a U-Bahn network was stopped by a referendum in the 1970s and instead its S-Bahn system
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#17327870829852398-445: A temporary station at Tower Hill and the District completed its line to Whitechapel . On 6 October 1884, the temporary station was replaced with a joint station and the inner circle was complete. The Metropolitan provided the clockwise, or "outer rail", trains; the District the "inner rail", or anti-clockwise. Many breakdowns occurred, due to the unbalanced wear-and-tear inflicted upon the train and carriages caused by travelling in
2507-401: A top speed of 62 mph (100 km/h). A 7-car S Stock train has a capacity of 865 passengers compared to 739 for the 6-car C Stock train it replaced. With a length of 117 metres (384 ft), the S Stock trains are 24 metres (79 ft) longer than the 93-metre (305 ft) long C stock train, and required station platforms to be lengthened before their introduction. The line's depot
2616-595: Is a more significant concern [than hearing damage], and therefore train's windows are kept open to increase ventilation, which caused a number of complaints. As of April 2023, windows continue to be kept open to reduce the risks of Covid-19 transmission. The cause of the Ōedo line's high noise levels lies in construction constraints such as preexisting infrastructure and the need to build deep tunnels, resulting in low-radius curves and small tunnels. All stations are located in Tokyo. Oedo Line trains are housed and maintained at
2725-801: Is a shortened reference to a metropolitan area . Rapid transit systems such as the Washington Metrorail , Los Angeles Metro Rail , the Miami Metrorail , and the Montreal Metro are generally called the Metro . In Philadelphia , the term "El" is used for the Market–Frankford Line which runs mostly on an elevated track, while the term "subway" applies to the Broad Street Line which is almost entirely underground. Chicago 's commuter rail system that serves
2834-608: Is a single corporate image for the entire transit authority, but the rapid transit uses its own logo that fits into the profile. A transit map is a topological map or schematic diagram used to show the routes and stations in a public transport system. The main components are color-coded lines to indicate each line or service, with named icons to indicate stations. Maps may show only rapid transit or also include other modes of public transport. Transit maps can be found in transit vehicles, on platforms , elsewhere in stations, and in printed timetables . Maps help users understand
2943-892: Is a type of high-capacity public transport that is generally built in urban areas . A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway , tube , metro or underground . They are sometimes grade-separated on elevated railways , in which case some are referred to as el trains – short for "elevated" – or skytrains . Rapid transit systems are railways , usually electric , that unlike buses or trams operate on an exclusive right-of-way , which cannot be accessed by pedestrians or other vehicles. Modern services on rapid transit systems are provided on designated lines between stations typically using electric multiple units on railway tracks . Some systems use guided rubber tires , magnetic levitation ( maglev ), or monorail . The stations typically have high platforms, without steps inside
3052-487: Is at Hammersmith, close to Hammersmith station, originally built by the Great Western Railway to be operated by the Metropolitan Railway when the joint Hammersmith & City Railway was electrified in the early 20th century. Sidings at Barking, Farringdon and near High Street Kensington (known as Triangle Sidings) stable trains overnight. It was planned that a new signalling system would be used first on
3161-506: Is built. Most rapid transit trains are electric multiple units with lengths from three to over ten cars. Crew sizes have decreased throughout history, with some modern systems now running completely unstaffed trains. Other trains continue to have drivers, even if their only role in normal operation is to open and close the doors of the trains at stations. Power is commonly delivered by a third rail or by overhead wires . The whole London Underground network uses fourth rail and others use
3270-416: Is necessary, rolling stock with a smaller loading gauge from one sub network may be transported along other lines that use larger trains. On some networks such operations are part of normal services. Most rapid transit systems use conventional standard gauge railway track . Since tracks in subway tunnels are not exposed to rain , snow , or other forms of precipitation , they are often fixed directly to
3379-486: Is not a true loop line: trains from the western Hikarigaoka terminus run anticlockwise around the loop and terminate at the intermediate Tochōmae Station facing towards Hikarigaoka, and vice versa. The arrangement is very much like the London Underground Circle Line since 2009, but does not share any track segments with other lines. The full 40.7 km (25.3 mi) trip from Tochōmae around
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3488-487: Is over 5.5 times costlier at 2,308.3 compared to 416.3 price-adjusted US dollars per kilometer. Ridership projections originally estimated 1 million users daily, a figure scaled down to 820,000 before opening. At the end of 2006, the line was averaging 720,000 passengers/day. However, its ridership has increased by about five percent each year since its opening, following new commercial and residential development around major stations such as Roppongi and Shiodome. According to
3597-555: Is referred to simply as "the subway", despite 40% of the system running above ground. The term "L" or "El" is not used for elevated lines in general as the lines in the system are already designated with letters and numbers. The "L" train or L (New York City Subway service) refers specifically to the 14th Street–Canarsie Local line, and not other elevated trains. Similarly, the Toronto Subway is referred to as "the subway", with some of its system also running above ground. These are
3706-412: Is serviced by at least one specific route with trains stopping at all or some of the line's stations. Most systems operate several routes, and distinguish them by colors, names, numbering, or a combination thereof. Some lines may share track with each other for a portion of their route or operate solely on their own right-of-way. Often a line running through the city center forks into two or more branches in
3815-748: Is the most commonly used term for underground rapid transit systems used by non-native English speakers. Rapid transit systems may be named after the medium by which passengers travel in busy central business districts ; the use of tunnels inspires names such as subway , underground , Untergrundbahn ( U-Bahn ) in German, or the Tunnelbana (T-bana) in Swedish. The use of viaducts inspires names such as elevated ( L or el ), skytrain , overhead , overground or Hochbahn in German. One of these terms may apply to an entire system, even if
3924-542: The Advanced Rapid Transit system manufactured by Bombardier ). This technology, though, is incompatible with other railway and subway lines, which can only operate with vehicles utilizing conventional rotary motors , thus preventing Ōedo Line trains from operating through services onto them. Although vehicles with rotary motor propulsion can technically operate on the Ōedo Line, its smaller tunnels and loading gauge prevents such occurrences, hence making
4033-568: The Board of Trade , the DC system was taken up, and the railways began electrifying the routes, using multiple-unit stock. The District and Metropolitan Railways bought different designs of electric multiple unit . Both had open saloons; the Metropolitan trains with gated ends, the District B Stock with sliding doors in the middle of each car. When their introduction was attempted on 1 July 1905,
4142-470: The District Railway ) was formed to build and operate a railway from South Kensington to Tower Hill. The Metropolitan western extension from a new station at Paddington to South Kensington opened in 1868. By May 1870, the District Railway had opened its line from West Brompton to Blackfriars via Gloucester Road and South Kensington, services being operated at first by the Metropolitan. In 1871,
4251-627: The Dublin Area Rapid Transit is despite the name considered a commuter rail due to usage of mainline railways. In France, large cities, such as Paris , Marseille and Lyon , feature a Métro . Also the smaller cities of Lille Rennes have a light metro. Furthermore, Brussels in Belgium, and Amsterdam and Rotterdam in the Netherlands have metro systems in place. Several Southern European contries also have
4360-659: The Great Western Railway 's relatively remote terminus at Paddington with Euston and King's Cross stations and the City , London's financial district. In the same year, a select committee report recommended an "inner circle" of railway lines connecting the London termini that had been built or were under construction. In the next year, the Metropolitan District Railway (commonly known as
4469-752: The Hudson and Manhattan Railroad K-series cars from 1958, the New York City Subway R38 and R42 cars from the late-1960s, and the Nagoya Municipal Subway 3000 series , Osaka Municipal Subway 10 series and MTR M-Train EMUs from the 1970s, were generally only made possible largely due to the relatively generous loading gauges of these systems and also adequate open-air sections to dissipate hot air from these air conditioning units. Especially in some rapid transit systems such as
Toei Ōedo Line - Misplaced Pages Continue
4578-533: The L&;NWR began an " outer circle " service from Broad Street to Mansion House via Willesden Junction and Earl's Court, diverting an earlier service that had run to Victoria; and the GWR began a " middle circle " service from Moorgate to Mansion House via Latimer Road and Earl's Court. Both of these routes were cut back to Earl's Court: the "middle circle" in 1900 and the "outer circle" in 1909. The GWR service survived as
4687-429: The London Underground . In 1868, New York opened the elevated West Side and Yonkers Patent Railway , initially a cable-hauled line using stationary steam engines . As of 2021 , China has the largest number of rapid transit systems in the world – 40 in number, running on over 4,500 km (2,800 mi) of track – and was responsible for most of the world's rapid-transit expansion in
4796-687: The Metropolitan Railway opened publicly in London in 1863. High capacity monorails with larger and longer trains can be classified as rapid transit systems. Such monorail systems recently started operating in Chongqing and São Paulo . Light metro is a subclass of rapid transit that has the speed and grade separation of a "full metro" but is designed for smaller passenger numbers. It often has smaller loading gauges, lighter train cars and smaller consists of typically two to four cars. Light metros are typically used as feeder lines into
4905-505: The Metropolitan Railway opened the world's first underground line between Paddington and Farringdon with wooden carriages and steam locomotives. The same year a select committee report recommended an "inner circle" of lines connecting the London railway termini, and the Metropolitan District Railway (commonly known as the District Railway ) was formed to build the southern portion of the line. In 1871, services began between Mansion House and Moorgate via Paddington, jointly operated by
5014-578: The Montreal Metro (opened 1966) and Sapporo Municipal Subway (opened 1971), their entirely enclosed nature due to their use of rubber-tyred technology to cope with heavy snowfall experienced by both cities in winter precludes any air-conditioning retrofits of rolling stock due to the risk of heating the tunnels to temperatures that would be too hot for passengers and for train operations. In many cities, metro networks consist of lines operating different sizes and types of vehicles. Although these sub-networks may not often be connected by track, in cases when it
5123-589: The Prague Metro . The London Underground and Paris Métro are densely built systems with a matrix of crisscrossing lines throughout the cities. The Chicago 'L' has most of its lines converging on The Loop , the main business, financial, and cultural area. Some systems have a circular line around the city center connecting to radially arranged outward lines, such as the Moscow Metro 's Koltsevaya Line and Beijing Subway 's Line 10 . The capacity of
5232-550: The Ray Street Gridiron beneath which pass the City Widened Lines which are currently used by Thameslink services. The line continues underground after Farringdon station ; there are bay platforms at Moorgate station . After passing through Aldgate station, the terminus of the Metropolitan line, the line joins the District line shortly before Tower Hill; this part of the line includes stations on
5341-521: The River Thames was broken at Edgware Road and extended west to become a spiral to Hammersmith. Starting in 2015, the signalling system was upgraded as part of a programme to increase peak-hour capacity on the line. The six-car C Stock trains were replaced from 2012 to 2014 by new seven-car S Stock trains. In 1863, the Metropolitan Railway , the world's first underground railway, opened in London between Paddington and Farringdon , connecting
5450-568: The Seibu Ikebukuro Line ) then later towards Higashi-Tokorozawa Station (on the Musashino Line ). Construction of the first segment to Ōizumigakuenchō is tentatively scheduled for before 2015, and will include the construction of three new stations, temporarily named Doshida station, Ōizumichō station and Ōizumigakuenchō station. Following the awarding of the 2020 Summer Olympics to Tokyo, there has been speculation regarding
5559-585: The Seikan Tunnel . On maps and signboards, the line is shown in magenta. Stations carry the letter "E" followed by a two-digit number inside a more pinkish ruby circle. The Ōedo Line is the first Tokyo subway line to use linear motor propulsion (and the second in Japan after the Osaka Metro Nagahori Tsurumi-ryokuchi Line ), which allows it to use smaller cars and smaller tunnels (a benefit similarly achieved by
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#17327870829855668-685: The Singapore MRT , Changi Airport MRT station has the alphanumeric code CG2, indicating its position as the 2nd station on the Changi Airport branch of the East West Line. Interchange stations have at least two codes, for example, Raffles Place MRT station has two codes, NS26 and EW14, the 26th station on the North South Line and the 14th station on the East West Line. The Seoul Metro is another example that utilizes
5777-438: The Tokyo Metropolitan Bureau of Transportation , as of June 2009 the Ōedo Line was the fourth most crowded subway line in Tokyo, at its peak running at 178% capacity between Monzen-Nakachō and Tsukishima stations. There are plans to extend the Ōedo Line westward from its current western terminus at Hikarigaoka Station through to a new terminus in Ōizumigakuenchō , 1.5 km (0.93 mi) north of Ōizumi-gakuen Station (on
5886-537: The Victoria Embankment , on the north bank of the Thames, as far as Westminster station. West of Gloucester Road station the line turns off the District main line to join the District line's Edgware Road branch just before High Street Kensington station. In Bayswater the line is in a cutting, concealed from above by a façade of two five-storey houses at Nos 23 and 24 Leinster Gardens . Trains then call at
5995-589: The Yamanote Line and the Osaka Loop Line . The full line began operation on 12 December 2000. An additional station (Shiodome Station) was opened on 2 November 2002 to connect to the Yurikamome guideway transit line. Following the addition of Shiodome, the automated announcements in the trains were changed to advertise businesses and facilities near each station, a first in Tokyo (although this
6104-450: The deep tube lines . Historically, rapid transit trains used ceiling fans and openable windows to provide fresh air and piston-effect wind cooling to riders. From the 1950s to the 1990s (and in most of Europe until the 2000s), many rapid transit trains from that era were also fitted with forced-air ventilation systems in carriage ceiling units for passenger comfort. Early rapid transit rolling stock fitted with air conditioning , such as
6213-409: The linear motor for propulsion. Some urban rail lines are built to a loading gauge as large as that of main-line railways ; others are built to a smaller one and have tunnels that restrict the size and sometimes the shape of the train compartments. One example is most of the London Underground , which has acquired the informal term "tube train" due to the cylindrical shape of the trains used on
6322-432: The 15 world largest subway systems suggested a universal shape composed of a dense core with branches radiating from it. Rapid transit operators have often built up strong brands , often focused on easy recognition – to allow quick identification even in the vast array of signage found in large cities – combined with the desire to communicate speed, safety, and authority. In many cities, there
6431-488: The 1995 Tokyo subway sarin gas attack and the 2005 " 7/7 " terrorist bombings on the London Underground. Some rapid transport trains have extra features such as wall sockets, cellular reception, typically using a leaky feeder in tunnels and DAS antennas in stations, as well as Wi-Fi connectivity. The first metro system in the world to enable full mobile phone reception in underground stations and tunnels
6540-621: The 2010s. The world's longest single-operator rapid transit system by route length is the Shanghai Metro . The world's largest single rapid transit service provider by number of stations (472 stations in total) is the New York City Subway . The busiest rapid transit systems in the world by annual ridership are the Shanghai Metro, Tokyo subway system , Seoul Metro and the Moscow Metro . The term Metro
6649-532: The 21st century, most new expansions and systems are located in Asia, with China becoming the world's leader in metro expansion, operating some of the largest and busiest systems while possessing almost 60 cities that are operating, constructing or planning a rapid transit system . Rapid transit is used for local transport in cities , agglomerations , and metropolitan areas to transport large numbers of people often short distances at high frequency . The extent of
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#17327870829856758-424: The Circle line was extended to include the Hammersmith & City route from Edgware Road to Hammersmith. Rather than continuously running around the circle, trains now travel from Hammersmith to Edgware Road, generally going around the circle once before terminating at Edgware Road, and returning via the same route; occasionally, trains may also continue clockwise through Edgware Road to additional stations. The change
6867-490: The District had built a terminus at Mansion House , and on 18 November 1876 the Metropolitan opened its terminus at Aldgate . Because of the conflict between the two companies, it took an act of Parliament, the Metropolitan and District Railways (City Lines and Extensions) Act 1879 ( 42 & 43 Vict. c. cci) before further work was done on the inner circle. In 1882, the Metropolitan extended its line from Aldgate to
6976-697: The Hammersmith & City line over 114 million passenger journeys are made each year. Paddington and all stations on the loop are within Zone 1, with those on the line to Hammersmith in Zone 2. Two trains per day run from Barking to Edgware Road via Victoria (as of February 2015). Historically there has been difficulty in relaying the direction of travel a train is headed in a clear message: variations such as "eastbound" and "westbound", and "clockwise" and "anti-clockwise" can be ambiguous. As passengers became more accustomed to digital devices, TfL considered stopping such announcements and now uses key stations along
7085-629: The Kiba depot, located underneath Kiba Park to the southeast of Kiyosumi-Shirakawa Station . Prior to the completion of the Oedo Line loop in 2000, servicing was performed at a depot near Hikarigaoka Station . Major overhaul work for Oedo Line trains is performed at the Magome depot, located south of Nishi-Magome Station on the Toei Asakusa Line . Oedo Line trains access this facility using
7194-827: The Metropolitan introduced new stock in 1921, with three pairs of sliding double doors on trailer cars. In 1926 the Metropolitan took over all inner circle workings except for three trains on Sundays. On 1 July 1933, the Metropolitan and the District Railways were amalgamated with other Underground railways, tramway companies and bus operators to form the London Passenger Transport Board . Metropolitan Railway electric multiple units were refurbished in 1934 at Acton Works to become eighteen five-car trains of Circle Stock , at first painted red and cream, later painted red all over to reduce costs. These trains included first-class accommodation, but this
7303-463: The addition of another 2.7 km (1.7 mi) to the proposed extension in order to extend the line to Niiza where the shooting range for the Olympics is to be located. A decision regarding this matter is expected in 2015. The Ōedo Line runs in a loop around central Tokyo before branching out towards Nerima in the western suburbs, meaning the line is shaped like a figure 6 lying on its side. It
7412-478: The beginning of rapid transit. Initial experiences with steam engines, despite ventilation, were unpleasant. Experiments with pneumatic railways failed in their extended adoption by cities. In 1890, the City & South London Railway was the first electric-traction rapid transit railway, which was also fully underground. Prior to opening, the line was to be called the "City and South London Subway", thus introducing
7521-544: The construction ended up taking nearly 10 years and estimates of the final cost of construction range from the official ¥988.6 billion to over ¥1,400 billion yen, making it the most expensive subway line ever built at that point. However, Singapore's Downtown MRT line stages 1–3 completed in 2017 are 2.84 times as expensive, at 33,669.5 compared to 11,571.8 US dollars per kilometer after adjusting for inflation and international price differences. In per-kilometer terms New York's Second Avenue Subway Phase 1 , also completed in 2017,
7630-414: The display of the transit network. Often this has the effect of compressing the distance between stations in the outer area of the system, and expanding distances between those close to the center. Some systems assign unique alphanumeric codes to each of their stations to help commuters identify them, which briefly encodes information about the line it is on, and its position on the line. For example, on
7739-611: The entire metropolitan area is called Metra (short for Met ropolitan Ra il), while its rapid transit system that serves the city is called the "L" . Boston's subway system is known locally as "The T". In Atlanta , the Metropolitan Atlanta Rapid Transit Authority goes by the acronym "MARTA." In the San Francisco Bay Area , residents refer to Bay Area Rapid Transit by its acronym "BART". The New York City Subway
7848-516: The floor rather than resting on ballast , such as normal railway tracks. An alternate technology, using rubber tires on narrow concrete or steel roll ways , was pioneered on certain lines of the Paris Métro and Mexico City Metro , and the first completely new system to use it was in Montreal , Canada. On most of these networks, additional horizontal wheels are required for guidance, and
7957-433: The governor of Tokyo, named the line "Toei Oedo Line", where Oedo literally means "Great Edo ", a reference to Tokyo's former name. As was the case with earlier lines, the public was initially polled to select a name; however, Ishihara rejected the chosen name, Tokyo Loop Line ( 東京環状線 , Tōkyō Kanjō-sen ) , on the grounds that it would not initially form a complete loop, and that calling it such would cause confusion with
8066-439: The interconnections between different parts of the system; for example, they show the interchange stations where passengers can transfer between lines. Unlike conventional maps, transit maps are usually not geographically accurate, but emphasize the topological connections among the different stations. The graphic presentation may use straight lines and fixed angles, and often a fixed minimum distance between stations, to simplify
8175-602: The lines of the Lyon Metro includes a section of rack (cog) railway , while the Carmelit , in Haifa, is an underground funicular . For elevated lines, another alternative is the monorail , which can be built either as straddle-beam monorails or as a suspended monorail . While monorails have never gained wide acceptance outside Japan, there are some such as Chongqing Rail Transit 's monorail lines which are widely used in
8284-525: The loop and onward to Hikarigaoka takes 81 minutes. Trains operate once every three to five minutes during rush hours, and once every six minutes during off-peak weekday hours, weekends and holidays. The Ōedo line is one of the noisiest train lines in the world, with decibel levels reaching 90 decibels frequently along the line. However, during the COVID-19 outbreak, noise levels have reached to over 105 decibels. The train line's President states that infection
8393-557: The main rapid transit system. For instance, the Wenhu Line of the Taipei Metro serves many relatively sparse neighbourhoods and feeds into and complements the high capacity metro lines. Some systems have been built from scratch, others are reclaimed from former commuter rail or suburban tramway systems that have been upgraded, and often supplemented with an underground or elevated downtown section. Ground-level alignments with
8502-418: The network map "readable" by illiterate people, this system has since become an "icon" of the system. Compared to other modes of transport, rapid transit has a good safety record, with few accidents. Rail transport is subject to strict safety regulations , with requirements for procedure and maintenance to minimize risk. Head-on collisions are rare due to use of double track, and low operating speeds reduce
8611-402: The next vehicle will arrive, and expected travel times. The standardized GTFS data format for transit information allows many third-party software developers to produce web and smartphone app programs which give passengers customized updates regarding specific transit lines and stations of interest. Mexico City Metro uses a unique pictogram for each station. Originally intended to help make
8720-958: The occurrence and severity of rear-end collisions and derailments . Fire is more of a danger underground, such as the King's Cross fire in London in November 1987, which killed 31 people. Systems are generally built to allow evacuation of trains at many places throughout the system. High platforms , usually over 1 meter / 3 feet, are a safety risk, as people falling onto the tracks have trouble climbing back. Platform screen doors are used on some systems to eliminate this danger. Rapid transit facilities are public spaces and may suffer from security problems: petty crimes , such as pickpocketing and baggage theft, and more serious violent crimes , as well as sexual assaults on tightly packed trains and platforms. Security measures include video surveillance , security guards , and conductors . In some countries
8829-603: The only two North American systems that are primarily called "subways". In most of Southeast Asia and in Taiwan , rapid transit systems are primarily known by the acronym MRT . The meaning varies from one country to another. In Indonesia , the acronym stands for Moda Raya Terpadu or Integrated Mass [Transit] Mode in English. In the Philippines , it stands for Metro Rail Transit . Two underground lines use
8938-544: The other London Underground sub-surface lines: the Hammersmith & City line from Hammersmith to just north of Aldgate; the Metropolitan line from Baker Street to Aldgate; and the District line from Tower Hill station to Edgware Road station , (except for a short connecting section near Gloucester Road). The line is electrified with a four-rail DC system: a central conductor rail is energised at −210 V and
9047-587: The outset. Budapest , Chicago , Glasgow , Boston and New York City all converted or purpose-designed and built electric rail services. Advancements in technology have allowed new automated services. Hybrid solutions have also evolved, such as tram-train and premetro , which incorporate some of the features of rapid transit systems. In response to cost, engineering considerations and topological challenges some cities have opted to construct tram systems, particularly those in Australia, where density in cities
9156-908: The rapid transit system varies greatly between cities, with several transport strategies. Some systems may extend only to the limits of the inner city, or to its inner ring of suburbs with trains making frequent station stops. The outer suburbs may then be reached by a separate commuter rail network where more widely spaced stations allow higher speeds. In some cases the differences between urban rapid transit and suburban systems are not clear. Rapid transit systems may be supplemented by other systems such as trolleybuses , regular buses , trams , or commuter rail. This combination of transit modes serves to offset certain limitations of rapid transit such as limited stops and long walking distances between outside access points. Bus or tram feeder systems transport people to rapid transit stops. Each rapid transit system consists of one or more lines , or circuits. Each line
9265-510: The route to describe a service (e.g. "via. High Street Kensington "). From 1970 to 2014, services were provided using six-car C69 stock trains, each car having mostly transverse seating and four sets of double doors per side to minimise loading times. The C69 stock trains were replaced by seven-car S Stock trains, the first running on the Circle line on 2 September 2013. By June 2014 all services were provided by S7 Stock trains. The trains are part of Bombardier's Movia family, and have
9374-542: The rubber tires. However, they have higher maintenance costs and are less energy efficient. They also lose traction when weather conditions are wet or icy, preventing above-ground use of the Montréal Metro and limiting it on the Sapporo Municipal Subway, but not rubber-tired systems in other cities. Some cities with steep hills incorporate mountain railway technologies in their metros. One of
9483-531: The same colour and two years later in 1949 the Circle line was shown separately on the map. In 1959–1960, Circle line trains were increased to six cars, the same length as those operating on the Hammersmith & City line, and the stock of the two lines was integrated with maintenance concentrated at Hammersmith depot, allowing Neasden depot to concentrate on the new A Stock . Aluminium C Stock trains, with public address systems and originally unpainted, replaced these trains from 1970. One person operation of
9592-411: The second Paddington station on Praed Street before rejoining the Hammersmith & City line at Praed Street junction and terminating at the four-platform Edgware Road station. As of December 2012 , there are six trains per hour, calling at all stations, requiring 18 trains in service. The journey from Edgware Road around the loop and continuing to Hammersmith takes 72 minutes off-peak. Together with
9701-472: The start of the 20th century, the District and Metropolitan were seeing increased competition in central London from the new electric underground tube lines and trams, and conversion to electric traction was seen as the way forward. Experiments were carried out on the Earl's Court to High Street Kensington section, and a jointly-owned six-carriage train began passenger service in 1900. Following this, an AC system
9810-514: The sub-surface lines from the end of 2016, but signalling contractor Bombardier was released from its contract by agreement in December 2013 amid heavy criticism of the procurement process and London Underground subsequently awarded the contract for the project to Thales in August 2015. With the introduction of S7 Stock, the track, electrical supply, and signalling systems are being upgraded in
9919-663: The suburbs, allowing a higher service frequency in the center. This arrangement is used by many systems, such as the Copenhagen Metro , the Milan Metro , the Oslo Metro , the Istanbul Metro and the New York City Subway . Alternatively, there may be a single central terminal (often shared with the central railway station), or multiple interchange stations between lines in the city center, for instance in
10028-612: The surface and are of similar size to those on British main lines. Printed in yellow on the Tube map , the 17-mile (27 km) line serves 36 stations, including most of London's main line termini . Almost all of the route, and all the stations, are shared with one or more of the three other sub-surface lines, namely the District , Hammersmith & City and Metropolitan lines . On the Circle and Hammersmith & City lines combined, over 141 million passenger journeys were recorded in 2019. The first section became operational in 1863 when
10137-714: The term subway . In Thailand , it stands for Metropolitan Rapid Transit , previously using the Mass Rapid Transit name. Outside of Southeast Asia, Kaohsiung and Taoyuan, Taiwan , have their own MRT systems which stands for Mass Rapid Transit , as with Singapore and Malaysia . In general rapid transit is a synonym for "metro" type transit, though sometimes rapid transit is defined to include "metro", commuter trains and grade separated light rail . Also high-capacity bus-based transit systems can have features similar to "metro" systems. The opening of London's steam-hauled Metropolitan Railway in 1863 marked
10246-530: The term Subway into railway terminology. Both railways, alongside others, were eventually merged into London Underground . The 1893 Liverpool Overhead Railway was designed to use electric traction from the outset. The technology quickly spread to other cities in Europe , the United States, Argentina, and Canada, with some railways being converted from steam and others being designed to be electric from
10355-428: The tracks of the main line to an island platform just north of the suburban platforms at Paddington station . The line enters a cut and cover tunnel at the end of the platforms and meets the District line and the other end of the Circle line from Bayswater at Praed Street Junction before passing through Edgware Road station in a cutting. After King's Cross St Pancras station the line exits the tunnel before passing over
10464-512: The trains was proposed in 1972 but, due to conflict with the trade unions, was not introduced until 1984. In 2003, the infrastructure of the Circle line was partly privatised in a public–private partnership , managed by the Metronet consortium. Metronet went into administration in 2007 and the local government body Transport for London took over responsibilities. On 7 July 2005, at about 08:50, bombs exploded on two Circle line trains. One
10573-511: The trains, requiring custom-made trains in order to minimize gaps between train and platform. They are typically integrated with other public transport and often operated by the same public transport authorities . Some rapid transit systems have at-grade intersections between a rapid transit line and a road or between two rapid transit lines. The world's first rapid transit system was the partially underground Metropolitan Railway which opened in 1863 using steam locomotives , and now forms part of
10682-465: The two companies. Due to conflict between the two companies it was not until October 1884 that the inner circle was completed. The line was electrified in 1905, and in 1933 the companies were amalgamated into the London Passenger Transport Board . In 1949, the Circle line appeared as a separate line for the first time on the Tube map. In 2009, the closed loop around the centre of London on the north side of
10791-601: The use of communications-based train control : the minimum headway can reach 90 seconds, but many systems typically use 120 seconds to allow for recovery from delays. Typical capacity lines allow 1,200 people per train, giving 36,000 passengers per hour per direction . However, much higher capacities are attained in East Asia with ranges of 75,000 to 85,000 people per hour achieved by MTR Corporation 's urban lines in Hong Kong. Rapid transit topologies are determined by
10900-579: The Ōedo Line the first self-enclosed subway line in Tokyo in over 40 years, and the first and to date only such line operated by Toei, although there is a track connection to the Asakusa Line that can only be used by Class E5000 locomotives. The line is deep (as low as 48 metres (157 ft) below ground at points) through central Tokyo, including three underground crossings of the Sumida River . Originally budgeted at ¥682.6 billion and 6 years,
11009-559: Was Singapore's Mass Rapid Transit (MRT) system, which launched its first underground mobile phone network using AMPS in 1989. Many metro systems, such as the Hong Kong Mass Transit Railway (MTR) and the Berlin U-Bahn, provide mobile data connections in their tunnels for various network operators. The technology used for public, mass rapid transit has undergone significant changes in the years since
11118-652: Was already the practice on the municipal subways of Osaka and Nagoya). Starting on 18 January 2023, car 4 on all services on the Oedo line were designated as a women-only car in a bid by the railway operator to reduce sexual assaults onboard trains. The restriction is in effect during the morning peak hour . a. ^ Crowding levels defined by the Ministry of Land, Infrastructure, Transport and Tourism : Rapid transit Rapid transit or mass rapid transit ( MRT ) or heavy rail , commonly referred to as metro ,
11227-562: Was amended in 1972 to complete the loop back to Shinjuku, extend it to Hikarigaoka and add a spur line to Mejiro from the northern side. The Tokyo Metropolitan Government undertook construction of the line, which was initially called Toei Line 12 ( 都営地下鉄12号線 , Toei Chikatetsu Jūnigō-sen ) . The first segment from Hikarigaoka to Nerima began operations on 10 December 1991. The line was extended from Nerima to Shinjuku on 19 December 1997, and later from Shinjuku to Kokuritsu-Kyōgijō on 20 April 2000. With this extension, Shintaro Ishihara ,
11336-899: Was developed further. Other Central European countries also have metro lines, for example in the cities of Budapest (Hungary), Prague (Czech Republic) and Warsaw (Poland). In Eastern Europe , metro systems are in operation in Minsk (Belarus), Kyiv (Ukraine), Riga (Latvia), Vilnius (Lithuania) and Moscow (Russia). In Southeastern European countries, there are metro systems in Athens and Thessaloniki (Greece), Belgrade (Serbia), Sofia (Bulgaria) and Istanbul (Turkey). In Northern Europe , rapid transit systems exist in Copenhagen (Denmark), Oslo (Norway), Stockholm (Sweden) and Helsinki (Finland). Various terms are used for rapid transit systems around North America . The term metro
11445-498: Was downgraded in 1940. From 1947, these were replaced by five-car trains of O and P Stock , with doors remotely operated by the guard, released by the transfer of F Stock to the Uxbridge line. The 1933 London Underground Beck map shows a Metropolitan line north of High Street Kensington and Mark Lane stations and a District line south of these points. On the 1947 map, the Metropolitan and District lines were shown together in
11554-702: Was low and suburbs tended to spread out . Since the 1970s, the viability of underground train systems in Australian cities, particularly Sydney and Melbourne , has been reconsidered and proposed as a solution to over-capacity. Melbourne had tunnels and stations developed in the 1970s and opened in 1980. The first line of the Sydney Metro was opened in 2019. Since the 1960s, many new systems have been introduced in Europe , Asia and Latin America . In
11663-518: Was made to improve reliability and increase the service frequency on the Hammersmith branch. In March 2020, following the UK government's implementation of lockdown restricting all non-essential travel, the Circle line, along with the Waterloo & City line , was suspended. The Circle line is 17 miles (27 km) long with 36 stations. Almost all of its track, and all of its stations, are shared with
11772-615: Was suggested, and this was accepted by both parties. However, the District was looking for a way to raise the finance needed and in 1901 found an investor, the American Charles Yerkes . He formed the Underground Electric Railways of London (UERL), and his experience in the United States led him to favour DC , with third-rail pick-up similar to that in use on the City & South London Railway and Central London Railway . After arbitration by
11881-607: Was travelling between Liverpool Street and Aldgate and the other was at Edgware Road . The bombs killed 15 people, including the two suicide bombers. Following the attacks, the whole of the Circle line was closed until 8 August. A day before a ban on drinking alcohol on public transport in London came into force, a party was held on 31 May 2008, mainly on the Circle line. Thousands of people attended and 17 were arrested by police due to disorderly behaviour, eventually causing several stations to be closed. Prior to 13 December 2009, Circle line trains travelled in both directions around
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