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141 relations: A Line (RTD), Advanced Civil Speed Enforcement System, Advanced Train Control System, African Development Bank, Alaska Railroad, Alstom, Amateur radio, American Railway Engineering and Maintenance-of-Way Association, Amtrak, Ansaldo STS, Association of American Railroads, Automatic train control, Automatic train protection, Automatic Warning System, B Line (RTD), Balise, Barack Obama, Baseline (configuration management), BNSF Railway, Bombardier Transportation, Boston, Cab signalling, California, Caltrain, Chicago metropolitan area, Chingola, Communications-based train control, Commuter rail, Congressional Research Service, Control car, Control engineering, CSX Transportation, Dark territory, Denver International Airport, Denver Union Station, Denver–Aurora combined statistical area, Derailment, EMD F40PH, ERTMS Regional, European Geostationary Navigation Overlay Service, European Rail Traffic Management System, European Train Control System, European Union Agency for Railways, Factor of safety, Federal Railroad Administration, Franklin Line, G Line (RTD), Gatimaan Express, GE Transportation, General Electric, ..., George W. Bush, Global Positioning System, GLONASS, Government Accountability Office, Grade (slope), GSM-R, Harrisburg, Pennsylvania, Huawei, IEEE 802, IEEE 802.15, Indian Railways, Institute of Electrical and Electronics Engineers, Interlocking, International Union of Railways, Iridium satellite constellation, KLUB-U, Linienzugbeeinflussung, Livingstone, Zambia, Lockheed Martin, Locomotive, LOCOPROL, Long Island Rail Road, Massachusetts Bay Transportation Authority, Mathura Junction railway station, Metra, Metro-North Railroad, Metrolink (California), Metropolitan Transportation Authority, Michigan Line, Moving block, Murphy's law, Nacala, National Transportation Safety Board, Needham Line, New Haven, Connecticut, New York City, NJ Transit, Norfolk Southern Railway, Northeast Corridor, Palwal railway station, Paoli/Thorndale Line, Pennsylvania Station (New York City), Permissive Working (railway), Philadelphia, Providence/Stoughton Line, Pulse code cab signaling, Punktförmige Zugbeeinflussung, Rail freight transport, Rail Safety Improvement Act of 2008, Railroad engineer, Railroad switch, Rumo S.A., Safety integrity level, Safety-critical system, Sapsan, SEPTA, SEPTA Regional Rail, Siemens, Siemens Mobility, Sistema Controllo Marcia Treno, Software-defined radio, Sonoma–Marin Area Rail Transit, Southern California, Swedish Rail Administration, Tech Mahindra, Terrestrial Trunked Radio, Track warrant, Train, Train Protection & Warning System, Train protection system, Transmission Voie-Machine, Trenton Line (SEPTA), Unfunded mandate, Union Pacific Railroad, United States Congress, United States Department of Transportation, United States House Committee on Transportation and Infrastructure, United States Senate Committee on Commerce, Science, and Transportation, University of Colorado, Wabtec Corporation, Warminster Line, Washington, D.C., Wheat Ridge, Colorado, Wilmington/Newark Line, World War II, Zambia Railways, 1.25-meter band, 1987 Maryland train collision, 1996 Maryland train collision, 2008 Chatsworth train collision, 2015 Philadelphia train derailment. Expand index (91 more) »
A Line (RTD)
The A Line, officially called the University of Colorado A Line for sponsorship reasons, is a Regional Transportation District (RTD) commuter rail line serving Denver and Aurora, Colorado, operating between Downtown Denver and Denver International Airport (DIA).
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Advanced Civil Speed Enforcement System
Advanced Civil Speed Enforcement System (ACSES) is a positive train control cab signaling system developed by Alstom.
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Advanced Train Control System
An Advanced Train Control System (ATCS) is a system of railroad equipment designed to ensure safety by monitoring locomotive and train locations, providing analysis and reporting, and automating track warrants and similar orders.
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African Development Bank
The African Development Bank Group (AfDB) or Banque Africaine de Développement (BAD) is a multilateral development finance institution.
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Alaska Railroad
The Alaska Railroad is a Class II railroad which extends from Seward and Whittier, in the south of the state of Alaska, in the United States, to Fairbanks (passing through Anchorage), and beyond to Eielson Air Force Base and Fort Wainwright in the interior of that state.
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Alstom
Alstom is a French multinational company operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling and locomotives, with products including the AGV, TGV, Eurostar, and Pendolino high-speed trains, in addition to suburban, regional and metro trains, and Citadis trams.
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Amateur radio
Amateur radio, also known as ham radio, describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication.
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American Railway Engineering and Maintenance-of-Way Association
The American Railway Engineering and Maintenance-of-Way Association (AREMA) is a North American railway industry group.
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Amtrak
The National Railroad Passenger Corporation, doing business as Amtrak, is a passenger railroad service that provides medium- and long-distance intercity service in the contiguous United States and to three Canadian cities.
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Ansaldo STS
Ansaldo Signalling and Transportation Systems (Ansaldo STS) is an Italian transportation company with a global presence in the field of railway signalling and integrated transport systems for passenger traffic (Railway / Mass Transit) and freight operations.
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Association of American Railroads
The Association of American Railroads (AAR) is an industry trade group representing primarily the major freight railroads of North America (Canada, Mexico and the United States).
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Automatic train control
Automatic train control (ATC) is a general class of train protection systems for railways that involves a speed control mechanism in response to external inputs.
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Automatic train protection
Automatic train protection (ATP) is a type of train protection system which continually checks that the speed of a train is compatible with the permitted speed allowed by signalling.
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Automatic Warning System
The Automatic Warning System (AWS) is a form of limited cab signalling introduced in 1956 in the United Kingdom.
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B Line (RTD)
The B Line, also known as the Northwest Rail Line during construction, is a commuter rail line which is part of the commuter and light rail system operated by the Regional Transportation District in the Denver metropolitan area in Colorado.
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Balise
A balise is an electronic beacon or transponder placed between the rails of a railway as part of an automatic train protection (ATP) system.
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Barack Obama
Barack Hussein Obama II (born August 4, 1961) is an American politician who served as the 44th President of the United States from January 20, 2009, to January 20, 2017.
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Baseline (configuration management)
In configuration management, a "baseline" is an agreed description of the attributes of a product, at a point in time, which serves as a basis for defining change.
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BNSF Railway
The BNSF Railway Company is the largest freight railroad network in North America, followed by the Union Pacific Railroad (UP) in second place, its primary competitor for Western U.S. freight.
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Bombardier Transportation
Bombardier Transportation is the rail equipment division of the Canadian firm Bombardier Inc. Bombardier Transportation is one of the world's largest companies in the rail vehicle and equipment manufacturing and servicing industry.
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Boston
Boston is the capital city and most populous municipality of the Commonwealth of Massachusetts in the United States.
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Cab signalling
Cab signalling is a railway safety system that communicates track status and condition information to the cab, crew compartment or driver's compartment of a locomotive, railcar or multiple unit.
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California
California is a state in the Pacific Region of the United States.
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Caltrain
Caltrain (Reporting mark JPBX) is a California commuter rail line on the San Francisco Peninsula and in the Santa Clara Valley (Silicon Valley).
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Chicago metropolitan area
The Chicago metropolitan area, or Chicagoland, is the metropolitan area that includes the city of Chicago, Illinois, and its suburbs.
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Chingola
Chingola is a city in Zambia's Copperbelt Province, the country's copper-mining region, with a population of 157,340 (2008 census).
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Communications-based train control
Communications-based train control (CBTC) is a railway signaling system that makes use of the telecommunications between the train and track equipment for the traffic management and infrastructure control.
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Commuter rail
Commuter rail, also called suburban rail, is a passenger rail transport service that primarily operates between a city centre and middle to outer suburbs beyond 15 km (10 miles) and commuter towns or other locations that draw large numbers of commuters—people who travel on a daily basis.
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Congressional Research Service
The Congressional Research Service (CRS), known as Congress's think tank, is a public policy research arm of the United States Congress.
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Control car
A control car, control trailer or driving trailer is a generic term for a non-powered railroad (US) or railway (UIC) vehicle that can control operation of a train from the end opposite to the position of the locomotive.
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Control engineering
Control engineering or control systems engineering is an engineering discipline that applies automatic control theory to design systems with desired behaviors in control environments.
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CSX Transportation
CSX Transportation is a Class I railroad operating in the eastern United States and the Canadian provinces of Ontario and Quebec.
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Dark territory
Dark territory is a term used in the North American railroad industry to describe a section of running track not controlled by signals.
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Denver International Airport
Denver International Airport, also commonly known as DIA, is an international airport in Denver, Colorado, United States.
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Denver Union Station
Denver Union Station is the main railway station and central transportation hub in Denver, Colorado.
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Denver–Aurora combined statistical area
The United States Office of Management and Budget has defined the Denver–Aurora, CO Combined Statistical Area comprising the Denver–Aurora–Lakewood, CO Metropolitan Statistical Area, the Boulder, CO Metropolitan Statistical Area, and the Greeley, CO Metropolitan Statistical Area.
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Derailment
A derailment occurs when a vehicle such as a train runs off its rails.
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EMD F40PH
The EMD F40PH is a four-axle B-B diesel-electric locomotive built by General Motors Electro-Motive Division in several variants from 1975 to 1992.
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ERTMS Regional
ERTMS Regional is a simplified and low-cost variant of the European Rail Traffic Management System suitable for train control on lines with low traffic volumes.
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European Geostationary Navigation Overlay Service
The European Geostationary Navigation Overlay Service (EGNOS) is a satellite based augmentation system (SBAS) developed by the European Space Agency and EUROCONTROL on behalf of the European Commission.
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European Rail Traffic Management System
The European Rail Traffic Management System (ERTMS) is the system of standards for management and interoperation of signalling for railways by the European Union (EU).
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European Train Control System
The European Train Control System (ETCS) is the signalling and control component of the European Rail Traffic Management System (ERTMS).
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European Union Agency for Railways
The European Union Agency for Railways (ERA) is the agency of the European Union (EU) that sets mandatory requirements for European railways and manufacturers in the form of Technical Specifications for Interoperability, which apply to the Trans-European Rail system.
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Factor of safety
Factors of safety (FoS), is also known as (and used interchangeably with) safety factor (SF), is a term describing the load carrying capacity of a system beyond the expected or actual loads.
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Federal Railroad Administration
The Federal Railroad Administration (FRA) is an agency in the United States Department of Transportation (DOT).
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Franklin Line
The Franklin Line, part of the MBTA Commuter Rail system, runs from Boston's South Station in a southwesterly direction toward Franklin, Massachusetts, utilizing the Northeast Corridor before splitting off onto the namesake Franklin Branch.
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G Line (RTD)
The G Line, also known as the Gold Line during construction, is a Regional Transportation District (RTD) electric commuter rail line between Denver Union Station and Wheat Ridge, Colorado.
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Gatimaan Express
Gatimaan Express is India's first semi-high speed train that runs between Delhi and Jhansi.
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GE Transportation
GE Transportation, formerly known as GE Rail, is a division of General Electric.
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General Electric
General Electric Company (GE) is an American multinational conglomerate incorporated in New York and headquartered in Boston, Massachusetts.
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George W. Bush
George Walker Bush (born July 6, 1946) is an American politician who served as the 43rd President of the United States from 2001 to 2009.
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Global Positioning System
The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force.
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GLONASS
GLONASS (ГЛОНАСС,; Глобальная навигационная спутниковая система; transliteration), or "Global Navigation Satellite System", is a space-based satellite navigation system operating in the radionavigation-satellite service.
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Government Accountability Office
The Government Accountability Office (GAO) is a legislative branch government agency that provides auditing, evaluation, and investigative services for the United States Congress.
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Grade (slope)
The grade (also called slope, incline, gradient, mainfall, pitch or rise) of a physical feature, landform or constructed line refers to the tangent of the angle of that surface to the horizontal.
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GSM-R
GSM-R, Global System for Mobile Communications – Railway or GSM-Railway is an international wireless communications standard for railway communication and applications.
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Harrisburg, Pennsylvania
Harrisburg (Pennsylvania German: Harrisbarrig) is the capital city of the Commonwealth of Pennsylvania in the United States, and the county seat of Dauphin County.
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Huawei
Huawei Technologies Co., Ltd. is a Chinese multinational networking, telecommunications equipment, and services company headquartered in Shenzhen, Guangdong.
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IEEE 802
IEEE 802 is a family of IEEE standards dealing with local area networks and metropolitan area networks.
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IEEE 802.15
IEEE 802.15 is a working group of the Institute of Electrical and Electronics Engineers (IEEE) IEEE 802 standards committee which specifies wireless personal area network (WPAN) standards.
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Indian Railways
Indian Railways (IR) is India's national railway system operated by the Ministry of Railways.
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Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers (IEEE) is a professional association with its corporate office in New York City and its operations center in Piscataway, New Jersey.
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Interlocking
In railway signalling, an interlocking is an arrangement of signal apparatus that prevents conflicting movements through an arrangement of tracks such as junctions or crossings.
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International Union of Railways
The UIC (Union Internationale des Chemins de fer) or International Union of Railways is an international rail transport industry body.
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Iridium satellite constellation
The Iridium satellite constellation provides L-band voice and data coverage to satellite phones, pagers and integrated transceivers over the entire Earth surface.
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KLUB-U
KLUB is the name of the modern Russian train control systems.
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Linienzugbeeinflussung
Linienzugbeeinflussung (or LZB) is a cab signalling and train protection system used on selected German and Austrian railway lines as well as the AVE in Spain.
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Livingstone, Zambia
Livingstone was, until 2012, the capital of the Southern Province of Zambia.
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Lockheed Martin
Lockheed Martin is an American global aerospace, defense, security and advanced technologies company with worldwide interests.
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Locomotive
A locomotive or engine is a rail transport vehicle that provides the motive power for a train.
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LOCOPROL
LOCOPROL (Low Cost satellite based train location system for signalling and train Protection for Low density traffic railway lines) has been a project to research the integration of satellite navigation into railway networks targeting low-density track lines.
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Long Island Rail Road
The Long Island Rail Road, legally known as the Long Island Rail Road Company and often abbreviated as the LIRR, is a commuter rail system in the southeastern part of the U.S. state of New York, stretching from Manhattan to the eastern tip of Suffolk County on Long Island.
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Massachusetts Bay Transportation Authority
The Massachusetts Bay Transportation Authority (abbreviated MBTA and known colloquially as "the T") is the public agency responsible for operating most public transportation services in Greater Boston, Massachusetts.
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Mathura Junction railway station
Mathura Junction railway station is on the Agra-Delhi chord of Delhi-Mumbai and Delhi-Chennai lines.
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Metra
Metra is a commuter railroad in the Chicago metropolitan area.
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Metro-North Railroad
The Metro-North Commuter Railroad, trading as MTA Metro-North Railroad or simply Metro-North, is a suburban commuter rail service run by the Metropolitan Transportation Authority (MTA), a public authority of the U.S. state of New York.
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Metrolink (California)
Metrolink is a commuter or regional rail system in Southern California; it consists of seven lines and 62 stations operating on of rail network.
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Metropolitan Transportation Authority
The Metropolitan Transportation Authority (MTA) is a public benefit corporation responsible for public transportation in the U.S. state of New York, serving 12 counties in Downstate New York, along with two counties in southwestern Connecticut under contract to the Connecticut Department of Transportation, carrying over 11 million passengers on an average weekday systemwide, and over 850,000 vehicles on its seven toll bridges and two tunnels per weekday.
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Michigan Line
The Michigan Line, sometimes known as the Chicago–Detroit Line, is a railroad corridor that runs from Porter, Indiana, to Dearborn, Michigan.
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Moving block
In railway signalling, a moving block is a signalling block system where the blocks are defined in real time by computers as safe zones around each train.
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Murphy's law
Murphy's law is an adage or epigram that is typically stated as: "Anything that can go wrong will go wrong".
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Nacala
Nacala, also known as Cidade de Nacala or Nacala-Porto is a city on the northern coast of Mozambique.
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National Transportation Safety Board
The National Transportation Safety Board (NTSB) is an independent U.S. government investigative agency responsible for civil transportation accident investigation.
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Needham Line
The Needham Line is a branch of the MBTA Commuter Rail system, running west from downtown Boston, Massachusetts through Roxbury, Jamaica Plain, Roslindale, West Roxbury, and the town of Needham.
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New Haven, Connecticut
New Haven is a coastal city in the U.S. state of Connecticut.
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New York City
The City of New York, often called New York City (NYC) or simply New York, is the most populous city in the United States.
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NJ Transit
New Jersey Transit Corporation, branded as NJ Transit (NJT; stylized as NJ TRANSIT), is a state-owned public transportation system that serves the US state of New Jersey, along with portions of New York State and Pennsylvania.
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Norfolk Southern Railway
The Norfolk Southern Railway is a Class I railroad in the United States.
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Northeast Corridor
The Northeast Corridor (NEC) is an electrified railroad line in the Northeast megalopolis of the United States.
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Palwal railway station
Palwal railway station is a railway station in Palwal, Haryana.
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Paoli/Thorndale Line
The Paoli/Thorndale Line, formerly known as the R5, is a SEPTA Regional Rail service running from Center City Philadelphia to Thorndale in Chester County on Amtrak's Philadelphia to Harrisburg Main Line which is part of the Keystone Corridor which in turn was once the Main Line of the Pennsylvania Railroad.
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Pennsylvania Station (New York City)
Pennsylvania Station, also known as New York Penn Station or Penn Station, is the main intercity railroad station in New York City.
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Permissive Working (railway)
Permissive Working on a railway in the United Kingdom allows more than one train at a time to be on the same line in a block section, a signal section or a dead-end platform line.
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Philadelphia
Philadelphia is the largest city in the U.S. state and Commonwealth of Pennsylvania, and the sixth-most populous U.S. city, with a 2017 census-estimated population of 1,580,863.
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Providence/Stoughton Line
The Providence/Stoughton Line is a line of the MBTA Commuter Rail system running southwest from Boston, Massachusetts, USA.
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Pulse code cab signaling
Pulse code cab signaling is a form of cab signaling technology developed in the United States by the Union Switch and Signal corporation for the Pennsylvania Railroad in the 1920s.
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Punktförmige Zugbeeinflussung
PZB or Indusi is an intermittent cab signalling system and train protection system used in Germany, Austria, Slovenia, Croatia, Romania, Israel, on two lines in Hungary, and on one line in Canada.
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Rail freight transport
Rail freight transport is the use of railroads and trains to transport cargo as opposed to human passengers.
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Rail Safety Improvement Act of 2008
The Rail Safety Improvement Act of 2008 is a United States federal law, enacted by Congress to improve railroad safety.
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Railroad engineer
An engineer (American and Canadian), engine driver, train driver, loco pilot, motorman, train operator (British and Commonwealth English), is a person who operates a train.
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Railroad switch
A railroad switch, turnout, or points is a mechanical installation enabling railway trains to be guided from one track to another, such as at a railway junction or where a spur or siding branches off.
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Rumo S.A.
Rumo formerly known América Latina Logística (ALL) is a Brazilian logistic company, mainly focused in the railway line logistics in Brazil, being the largest company in Latin America in this segment, the company provides also transportation services such as logistics, intermodal transport, port operations, movement and storage of merchandise, administration of storage facilities and general storage.
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Safety integrity level
Safety integrity level (SIL) is defined as a relative level of risk-reduction provided by a safety function, or to specify a target level of risk reduction.
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Safety-critical system
A safety-critical system or life-critical system is a system whose failure or malfunction may result in one (or more) of the following outcomes.
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Sapsan
The Sapsan (Peregrine Falcon, known as Velaro RUS EVS) is a Russian gauge high speed electric express train.
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SEPTA
The Southeastern Pennsylvania Transportation Authority (SEPTA) is a regional public transportation authority that operates bus, subway / elevated rail line, commuter and light rail line, and electric trolleybus services to nearly 4 million people in five counties in and around Philadelphia, Pennsylvania.
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SEPTA Regional Rail
The SEPTA Regional Rail system is a commuter rail network serving the Philadelphia Metropolitan area.
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Siemens
Siemens AG is a German conglomerate company headquartered in Berlin and Munich and the largest industrial manufacturing company in Europe with branch offices abroad.
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Siemens Mobility
Siemens Mobility is a division of the German conglomerate Siemens.
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Sistema Controllo Marcia Treno
Sistema di Controllo della Marcia del Treno (SCMT) is a discontinuous train Cab signalling system used in Italy.
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Software-defined radio
Software-defined radio (SDR) is a radio communication system where components that have been traditionally implemented in hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a personal computer or embedded system.
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Sonoma–Marin Area Rail Transit
Sonoma–Marin Area Rail Transit (SMART) is a passenger rail service and bicycle-pedestrian pathway project in Sonoma and Marin counties of the U.S. state of California.
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Southern California
Southern California (colloquially known as SoCal) is a geographic and cultural region that generally comprises California's southernmost counties.
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Swedish Rail Administration
The Swedish Rail Administration (Banverket) was a Swedish State administrative authority which acted as owner on behalf of the State and maintained virtually all main railway lines in Sweden; except for short sidings for freight, heritage railways, the Stockholm Metro, local railways in the Stockholm area (Roslagsbanan & Saltsjöbanan), and the tramways in Gothenburg, Norrköping and Stockholm.
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Tech Mahindra
Tech Mahindra Limited is an Indian multinational provider of information technology (IT), networking technology solutions and Business Process Outsourcing (BPO) to various industry verticals and horizontals.
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Terrestrial Trunked Radio
Terrestrial Trunked Radio (TETRA; formerly known as Trans-European Trunked Radio), a European standard for a trunked radio system, is a professional mobile radio and two-way transceiver specification.
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Track warrant
Track warrants are systematized permissions used on some railroad lines to authorize a train's use of the main line.
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Train
A train is a form of transport consisting of a series of connected vehicles that generally runs along a rail track to transport cargo or passengers.
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Train Protection & Warning System
The Train Protection & Warning System (TPWS) is a train protection system used throughout the two UK passenger main-line railway networks, and in Victoria, Australia.
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Train protection system
A train protection system is a railway technical installation to ensure safe operation in the event of human failure.
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Transmission Voie-Machine
Transmission Voie-Machine (TVM, English: track-to-train transmission) is a form of in-cab signalling originally deployed in France and used on high-speed railway lines.
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Trenton Line (SEPTA)
The Trenton Line is a route of the SEPTA Regional Rail (commuter rail) system.
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Unfunded mandate
In the United States, federal mandates are orders that induce "responsibility, action, procedure or anything else that is imposed by constitutional, administrative, executive, or judicial action" for state and local governments and/or the private sector.
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Union Pacific Railroad
The Union Pacific Railroad (or Union Pacific Railroad Company and simply Union Pacific) is a freight hauling railroad that operates 8,500 locomotives over 32,100 route-miles in 23 states west of Chicago and New Orleans.
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United States Congress
The United States Congress is the bicameral legislature of the Federal government of the United States.
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United States Department of Transportation
The United States Department of Transportation (USDOT or DOT) is a federal Cabinet department of the U.S. government concerned with transportation.
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United States House Committee on Transportation and Infrastructure
The U.S. House Committee on Transportation and Infrastructure is a standing committee of the United States House of Representatives.
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United States Senate Committee on Commerce, Science, and Transportation
The United States Senate Committee on Commerce, Science, and Transportation is a standing committee of the United States Senate.
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University of Colorado
The University of Colorado system is a system of public universities in Colorado consisting of four campuses: University of Colorado Boulder, University of Colorado Colorado Springs, University of Colorado Denver in downtown Denver and at the Anschutz Medical Campus in Aurora.
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Wabtec Corporation
Wabtec Corporation (derived from Westinghouse Air Brake Technologies Corporation) is an American company formed by the merger of the Westinghouse Air Brake Company (WABCO) and MotivePower Industries Corporation in 1999.
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Warminster Line
The Warminster Line is a route of the SEPTA Regional Rail commuter rail system.
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Washington, D.C.
Washington, D.C., formally the District of Columbia and commonly referred to as Washington or D.C., is the capital of the United States of America.
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Wheat Ridge, Colorado
Wheat Ridge is a Home Rule Municipality located in Jefferson County, Colorado, United States.
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Wilmington/Newark Line
The Wilmington/Newark Line is a route of the SEPTA Regional Rail commuter rail system in the Philadelphia area.
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World War II
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
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Zambia Railways
Zambia Railways (ZR) is the national railway of Zambia, one of the two major railway organizations in Zambia, which may also be referred to as Railway Systems of Zambia (RSZ).
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1.25-meter band
The 1.25 meter, 220 MHz or 222 MHz band is a portion of the VHF radio spectrum internationally allocated for amateur radio use on a primary basis in ITU Region 2, and it comprises frequencies from 220 MHz to 225 MHz.
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1987 Maryland train collision
The 1987 Maryland train collision occurred at 1:30 pm on January 4, 1987, on Amtrak's Northeast Corridor main line.
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1996 Maryland train collision
The 1996 Maryland train collision was an opposite-direction collision that occurred on February 16, 1996, when a MARC commuter train collided with Amtrak's Capitol Limited passenger train in Silver Spring, Maryland.
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2008 Chatsworth train collision
The Chatsworth train collision occurred at 4:22 p.m. PDT (23:22 UTC) on Friday, September 12, 2008, when a Union Pacific freight train and a Metrolink commuter train collided head-on in the Chatsworth district of Los Angeles, California.
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2015 Philadelphia train derailment
On May 12, 2015, an Amtrak Northeast Regional train from Washington, D.C. bound for New York City derailed and wrecked on the Northeast Corridor in the Port Richmond neighborhood of Philadelphia, Pennsylvania.
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Redirects here:
Active Train Control, Incremental Train Control System, Positive Train Control.
References
[1] https://en.wikipedia.org/wiki/Positive_train_control
