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101-439: The Metro Rail Transit Line 4 ( MRT-4 ) is a proposed rapid transit line that would serve the Greater Manila Area of the Philippines . The 12.7 km (7.9 mi), 10-station elevated railway would connect Ortigas Center in Metro Manila and the suburban municipality of Taytay, Rizal . It would traverse along Ortigas Avenue and Manila East Road, starting at the former's junction with EDSA in Quezon City to

202-425: 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

303-450: 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

404-646: 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

505-565: 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

606-624: A cost of ₱16 billion in budget. It was scheduled to be done in 1999; however, the project would later be shelved when the original proposal status was eventually lost. According to the Metro Manila Urban Transportation Integration Study, the rolling stock was supposed to have 5-car light rail vehicles. As part of the MMUTIS published by the Japan International Cooperation Agency, the proposal

707-405: 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

808-418: 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

909-629: 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 ,

1010-452: 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

1111-624: A loan of US$ 1 billion for the project. The loan agreement, which was initially expected to be signed in 2023, was delayed to 2024 due to undisclosed reasons and again to 2025. The loan was finalized and secured in November 2024. The government is aiming to begin groundbreaking for the project within the 1st quarter of 2025, as the DOTr is set to finalize the engineering design of the project. Pre-construction activities such as soil testing have already begun in some areas along Ortigas Avenue. Actual construction

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1212-602: 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

1313-464: A proposal with a Swiss challenge , and he said in a recent interview that he had initial talks with the Department of Transportation . Also in that same year, the proposal was to tap Chinese firms to build. However, the initial project was not pushed through until it was approved for a second time on December 20, 2019. The contract for the architectural and engineering design of the project was signed by

1414-564: A rapid transit setting. Automated guideway transit An automated guideway transit ( AGT ) or automated fixed-guideway transit or automatic guideway transit system is a type of fixed guideway transit infrastructure with a riding or suspension track that supports and physically guides one or more driverless vehicles along its length. The vehicles are often rubber tired or steel wheeled, but other traction systems including air cushion, suspended monorail and maglev have been implemented. The guideway provides both physical support, like

1515-487: A road, as well as the guidance. An automated line can be cheaper to run than a conventional line, due to the shorter trains and stations. AGT covers a wide variety of systems, from limited people mover systems commonly found at airports, to more complex automated train systems like the Vancouver SkyTrain . In the people mover role the term "automated people mover" (APM) is sometimes used, although this distinction

1616-558: 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

1717-592: 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

1818-526: A wave of similar developments around the world. However, the market for these systems proved to be overestimated, and only one of these US-designed small AGT's was constructed as a mass transit system, the Morgantown PRT . Small scaled AGT systems are also known as people movers. Although the mass transit world showed a lack of interest, AGT systems quickly found a number of niche roles that they have continued to fill to this day. Tampa International Airport

1919-508: A way to serve outlying areas or as feeders to a metro system. Kobe 's Port Liner is the world's first mass transit AGT, which began operating in 1981. It connects Kobe's main rail station, Sannomiya Station , with the dockyard areas and Kobe Airport to the south. Many similar systems have been built elsewhere in Japan. The Véhicule Automatique Léger (VAL) system in Lille , France , opened in 1983,

2020-408: Is 20 meters (65 ft 7 in) including couplers, which would mean a total length of 100 meters (328 ft 1 in) for the initial 5-car trains and 120 meters (393 ft 8 in) for the 6-car trains. A 5-car train is capable of carrying 1,000 passengers. To achieve the 4-minute headway target, up to 35 trainsets shall be ordered which corresponds to the number of rolling stock operators in

2121-770: 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

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2222-608: 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

2323-506: 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

2424-582: Is expected to begin by the second quarter of 2024 and to be completed by 2030. Full operations shall begin by 2031. In May 2024, the House of Representatives briefing presentation on Metro Manila development has been addressing right-of-way issues for the project, including public utilities. There are five main components in the project. This includes one each for the mainline, station buildings, depot, electromechanical systems and rolling stock. The presentation indicates that these contract packages are: According to

2525-416: 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

2626-705: Is often cited as the first AGT installed to serve an existing urban area. Larger scale INNOVIA advanced rapid transit (ART) systems in Toronto , and Vancouver followed in the next few years, and then the Docklands Light Railway in London . VAL and ART systems have seen continued installations around the world such as in Airport Express in Beijing and have been joined by a variety of new systems with similar features, like

2727-548: 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

2828-639: Is relatively rare because most people movers are automated. Larger systems span a variety of conceptual designs, from subway-like advanced rapid transit (ART) systems to smaller (typically two to six passengers) vehicles known as personal rapid transit (PRT) which offer direct point-to-point travel along a switched network. AGT was originally developed as a means of providing mass transit services aimed at serving rider loads higher than those that could be served by buses or trams, but smaller than those served by conventional subways . Subways were too expensive to build in areas of lower density, such as smaller cities or

2929-412: 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

3030-733: 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

3131-616: Is the primary motivation to build a rail line in the vicinity to improve journey times between the two areas. A new LRT Line 4 project, was approved by the Investment Coordination Committee (ICC) of the National Economic and Development Authority in June 2015 as a public–private partnership project, with construction slated to begin in 2017 and a targeted opening date in 2021. In 2017, businessman Salvador Zamora II offered

MRT Line 4 (Metro Manila) - Misplaced Pages Continue

3232-758: The AnsaldoBreda Driverless Metro . Automated monorail systems, such as the Innovia Monorail 200 system in Las Vegas , are becoming more common AGT systems. Monorails are less obtrusive because they only require a single, narrow guidebeam. Once limited to larger airports and a small number of metro systems, AGT have undergone something of a renaissance since the late 1990s. Lower capital costs compared to conventional metros have allowed AGT systems to expand quickly, and many of these "small" systems now rival their larger counterparts in any measure. For instance,

3333-539: The Department of Transportation and Spanish design consultant IDOM Consulting Engineering, Architecture, SA on October 1, 2021. Meanwhile, on March 30, 2023, the contract for the consultancy services for the operations and maintenance of the line was signed by DOTr and Australia -based Ricardo Rail. On October 12, 2022, the Department of Transportation confirmed that the Asian Development Bank (ADB) will extend

3434-605: 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

3535-724: 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

3636-429: 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

3737-722: 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

3838-578: 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

3939-577: 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

4040-656: 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

4141-541: The Vancouver SkyTrain started operations in 1986, but has expanded so rapidly that its track length roughly matches the Toronto subway which pre-dates it by 30 years. Although the original introduction of PRT systems did not result in the widespread adoption as expected, Morgantown Personal Rapid Transit in West Virginia's success, along with a renewed interest in new forms of transit, has led to several new PRT projects since 2000. London Heathrow Airport has installed

MRT Line 4 (Metro Manila) - Misplaced Pages Continue

4242-450: 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

4343-409: 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

4444-432: 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

4545-480: 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

4646-598: 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

4747-528: 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

4848-737: The Center at the top of a hill in Brentwood ; this system places the motor outside the vehicle at the top of the guideway to reduce the weight lifted up the hill and thus improve efficiency. Small AGT systems are also used as circulator or feeder systems within urban centers. The city of Miami installed its Metromover system in 1986 and later extended it by 4.4 miles and added 12 new stations it in 1994. Similar INNOVIA APM 100 systems operate in Singapore's Bukit Panjang district and in Guangzhou , China. Over time,

4949-488: The Leitner Group, better known for their ski lift systems, provide AGT systems for the airport market. Although the smaller vehicle systems were not successful in the marketplace, larger AGT were simpler to integrate into existing mass transit systems. Many higher capacity AGT systems that looked and operated in a fashion similar to a small subway have since become a common fixture of many existing metro systems, often as

5050-612: The Philippines' first cable car system may be operational by 2028. Dubbed the Antipolo Cable Car Project, the DOTr plans to have the cable car ferry passengers from the planned Taytay station in the MRT Line 4 to Antipolo . During a Build Better More forum, DOTr Undersecretary Timothy Batan said a feasibility study will be conducted in mid-2025 to determine the project cost, passenger capacity, and other details. The bidding for

5151-585: The Taytay Diversion Road alignment until the line ends at the Manila East Road in Taytay. The route is approximately 12.7 km (7.9 mi) long. Its depot will be located in Taytay, at the site of the cancelled Excelsior Villas development beside Club Manila East and Taytay Municipal Hall. The line was originally planned to be 15.56 km (9.67 mi) long with 12 stations. This would have includes

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5252-521: The aerospace firms that had initially designed most of these systems left the industry and sold off the AGT divisions to other companies. Most of these were picked up by existing transportation conglomerates, and through additional mergers and buyouts, many of these are today owned by either Siemens or Bombardier . During the same period, a number of new companies entered the field with systems designed solely for these smaller installations. Poma , Doppelmayr and

5353-474: 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

5454-409: The concourse. The standard-width types are 28 meters (92 ft) wide and will have its own dedicated ground-level entrance. EDSA station will have its own design, being 150 meters (492 ft 2 in) long and will have 2 different concourses. The line will initially use 5-car electric multiple unit trains. The stations are also designed for an expansion to 6 cars. The car length for each train

5555-402: The cost of a subway system is due to the large vehicle sizes, which demand large tunnels, large stations and considerable infrastructure throughout the system. The large vehicles are a side-effect of the need to have considerable space between the vehicles, known as " headway ", for safety reasons due to the limited sightlines in tunnels. Given large headways and limited average speed due to stops,

5656-536: The densely populated area of Antipolo. The line will be a generally elevated mass rapid transit (MRT) railway with two tracks. Originally approved as a heavy monorail line in its MRT Line 4 iteration, the Project Description for scoping (PDS) published in September 2022 presented the possible options of constructing the line as a monorail , a light rail transit , or as a "mass rapid transit" (MRT) system. Of

5757-414: 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

5858-568: The elevated sections: segmental box, precast concrete U-type and dapped-end girders. However, the design of the box girders will be different to that of the North–South Commuter Railway , having a more rounded U shape than that of the boxier design of the NSCR girders. The line is expected to have a headway of 4 minutes, and can be further lessened to 2 minutes with the introduction of CBTC signaling. The stations are divided into two types:

5959-496: The ending of Project Apollo and the winding down of the Vietnam War , there was concern that these companies would be left with few projects in the 1970s and 80s. Expecting widespread deployment of PRT systems through the late 1970s and 80s, many of the major US aerospace companies entered the AGT market, including Boeing , LTV and Rohr . Car companies followed suit, including General Motors and Ford . This, in turn, sparked off

6060-584: 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

6161-505: 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

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6262-439: 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

6363-996: The line near the municipal hall. Other options include a vacant lot beside SM Taytay and at the Comeco compound in Pasig . The other two sites were put as secondary alternative locations to the Excelsior site as these require additional land acquisition. The Comeco location would also need a significant realignment in the right-of-way. The depot is expected to have a 24-hour operation and will have stabling facilities, stabling track, traverser system, train storage, workshops and substation facilities. Rapid transit 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

6464-687: The line to as far east as the Rizal municipality of Angono on the Manila East Road , and west to either of the following terminals: Option 2 was the chosen alignment of the study owing to its capability to serve the most demand that can alleviate traffic the most on the Taytay-Cainta-Pasig-Mandaluyong-Manila corridor. Construction did not push through despite receiving approval by President Benigno Aquino III last September 2015. The Department of Transportation (DOTr) announced that

6565-587: 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

6666-439: 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

6767-433: The narrow-width and the standard-width stations. For both types, the platform length is consistently 120 meters (390 ft) long. These will also have three levels with one each for ground access, concourse and platforms to be built on top of center islands . The narrow width stations are 17 meters (56 ft) wide and instead of having its own ground level entries, it will utilize neighboring commercial structures to access

6868-418: 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

6969-402: 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

7070-852: 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

7171-437: 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

7272-411: The only way to increase passenger capacity is to increase the size of the vehicle. Capital costs can be reduced by elevating the tracks instead of burying them, but the large tracks needed present a major visual barrier, and the steel-wheels-on-steel-rails are very noisy rounding bends. Headway can be reduced via automation, a technique that was becoming feasible in the 1960s. As the headway is decreased,

7373-576: The operations stage. The trains will also be 2.8 meters (9 ft 2 in) wide. The electrification system will be at 1,500 volts DC using overhead lines as with the LRT Line 2 and the North–South Commuter Railway. The Project Description for Scoping (PDS) report recommends the construction of the depot at the former Excelsior Villas site in Taytay, Rizal . It is located at the Rizal end of

7474-581: The original Line 4 was conceptualized by the Ramos administration with a study by SOFRETU , a French firm. Meanwhile, Spanish firms and Halcrow also participated in the study. The plan would have been an 18.35 km (11.40 mi) partly elevated light rail line that would run from Welcome Rotonda to Quirino Highway , entirely in Quezon City. A year later, a French consortium led by Javlon International and Bouygues , as well as local firm Ayala Land , submitted

7575-582: 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

7676-613: The presentation, there are planned options for contract packages for E&M, trackworks, and rolling stock. The line is a component of the Manila East Rail Transit Project proposed by the Japanese government in February 2015 which aims to provide a medium-capacity rail transport system connecting central and eastern Metro Manila with the province of Rizal. Its proposed alignment is along Ortigas Avenue with an option to extend

7777-473: The project is expected to take place in 2026, with a potential construction period of two years. If the project is awarded in 2026, the cable car system could be operational by 2028. The ADB financed the pre- feasibility study , including the detailed feasibility of the project. The Antipolo Cable Car Project is intended to complement the MRT-4, providing additional connectivity for residents and economic activities in

7878-673: The proposal to the government for the proposed elevated railway that would run from the Old Bilibid Prison in Santa Cruz, Manila to Batasan in Quezon City, totaling 15.1 km (9.4 mi), while the depot was to be located in the vicinity of the University of the Philippines Diliman campus in Quezon City, as well as the planned extension to Novaliches . The project was approved numerous times in 1995 and first passed in 1998 with

7979-416: The proposed stations of Greenhills, Santolan, and N. Domingo, where the last station would have had an interchange with the LRT Line 2 in Quezon City. According to the project proponent, the N. Domingo to EDSA segment was dropped due to low demand.A 2015 plan conceptualized the western terminus near V. Mapa while a 2019 plan conceptualized it at Gilmore station . In 1994, the proposal's origins came when

8080-565: The rail and replace it with a "virtual" one that is read by sensors on the vehicle without the need for any mechanical connection. AGT systems, and the personal rapid transit concept (or "dial-a-cab"), became a major area of research after the publication of the HUD reports in 1968, and subsequent funding by the US Department of Transportation . Political support was particularity strong in states with large concentrations of aerospace companies; with

8181-908: 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

8282-525: 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

8383-450: The size of the vehicle, so the guideway was often separate from the running surface. Typical solutions used a single light rail embedded in the ground or attached to the guideway wall, with a wheel or slider that was pressed against the guideway rail and steered the running wheels through a linkage. A suspension-like system is needed to smooth out the imperfections in the guideway and provide a comfortable ride. More modern systems can eliminate

8484-462: The size of vehicle needed to transport a given number of passengers per hour also decreases, which, in turn, decreases the infrastructure needed to support these smaller vehicles. Everything from track supports to station size can be reduced, with similar reductions in capital costs. Additionally, the lighter vehicles allow for a wider variety of suspension methods, from conventional steel wheels, to rubber tires, air cushion vehicles and maglevs . Since

8585-440: The suburbs of larger ones, which often suffer the same gridlock problems as larger cities. Buses could be easily introduced in these areas, but did not offer the capacities or speeds that made them an attractive alternative to car ownership. Cars drive directly from origin to destination, while buses generally work on a hub-and-spoke model that can increase trip times. AGT offered a solution that fit between these extremes. Much of

8686-636: 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

8787-462: The system has to be automated in order to reduce the headways enough to be worthwhile, by automating the steering as well the operational costs can also be reduced compared to crewed vehicles. One key problem in an automated system is the steering system's negotiation of turns in the right-of-way. The simplest solution is to use a rigid guideway, like conventional rails or steel rollercoasters . For lighter AGTs, these solutions were over-specified given

8888-706: 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

8989-519: 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

9090-567: The three options, the MRT option was strongly recommended by IDOM due to ease of maintenance and abundance of technical suppliers. In addition to this, studies conducted by IDOM also determined that the ridership demand along the San Juan-Rizal corridor was higher than expected. Because of this, the recommendation to use a MRT system was accepted by the Department of Transportation later that month. The guideway will use three different girder designs for

9191-591: The time. In the late 2010s, the Quezon Memorial Circle –Batasan Hills segment became the MRT Line 7 . As of 2021, the Ortigas Avenue corridor has an annual average daily traffic of 185,699 vehicles. However, only 9.07 percent of daily traffic comes from public utility vehicles including taxis . An average commute from Tikling in Taytay, Rizal to Ortigas Center can take up to 3 hours during rush hour. This

9292-511: 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

9393-591: 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

9494-491: The west until it terminates near the New Taytay Public Market to the east. Originally proposed as a "heavy monorail " based on the likes of Chongqing Rail Transit 's Line 3 , the project was revised into a conventional rail system in 2022 upon the recommendation of the project consultants commissioned by the Department of Transportation. Initially expected to cost an estimated ₱ 59.3 billion ( US$ 1.1 billion), it

9595-613: The world, and today they are relatively universal at larger airports, often connecting terminals with distant long-term parking lots. Similar systems were also a fixture of a number of amusement parks, notably the Walt Disney World Monorail System and the Toronto Zoo Domain Ride . The Getty Center in Los Angeles uses a unique vertically oriented AGT to bring visitors from a parking lot off Interstate 405 to

9696-540: 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

9797-582: Was also included. Meanwhile, the right-of-way for the present Line 4 can be traced to the southeast extension of the LRT Line 2 , which would either be an automated guideway transit (AGT) or heavy rail line in the same fashion as the Line 2, as well as a bus rapid transit collector line towards the town of Binangonan in Rizal . However, this would utilize the Shaw Boulevard alignment due to developmental conditions at

9898-845: 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) 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

9999-681: 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

10100-620: Was raised to ₱87 billion due to design changes. An initial US$ 1 billion loan from the Asian Development Bank was signed in November 2024, while additional funding is being sought from the Asian Infrastructure Investment Bank . The project will start at the intersection of EDSA and Ortigas Avenue in Quezon City . It will traverse the Ortigas Avenue corridor until Tikling area in Taytay , Rizal . It will then follow

10201-621: Was the world's first to incorporate an AGT system as an inter-terminal connector in 1971. Its landside/airside set up allows the airport to increase capacity without spreading out. The LTV Airtrans was another early AGT systems which was installed at the Dallas/Fort Worth International Airport and went into operation in January 1975 (later replaced by the DFW Skylink system in 2005). Similar systems followed at airports around

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