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Light rail transit (LRT) is a form of passenger urban rail transit characterized by a combination of tram and rapid transit features. While its rolling stock is more similar to a traditional tram, it operates at a higher capacity and speed, and often on an exclusive right-of-way. In many cities, light rail transit systems more closely resemble, and are therefore indistinguishable from, traditional underground or at-grade subways and heavy-rail metros.
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, trolleybuses or trams. The generic term used by the International Union of Railways for the technology is overhead line. It is known variously as overhead catenary, overhead contact line (OCL), overhead contact system (OCS), overhead equipment (OHE), overhead line equipment, overhead lines (OHL), overhead wiring (OHW), traction wire, and trolley wire.
A third rail, also known as a live rail, electric rail or conductor rail, is a method of providing electric power to a railway locomotive or train, through a semi-continuous rigid conductor placed alongside or between the rails of a railway track. It is used typically in a mass transit or rapid transit system, which has alignments in its own corridors, fully or almost fully segregated from the outside environment. Third rail systems are usually supplied from direct current electricity.
The Metro Blue Line is a 12-mile (19.3 km) light rail line in Hennepin County, Minnesota, that is part of the Metro network. It travels from downtown Minneapolis to Minneapolis–Saint Paul International Airport and the southern suburb of Bloomington. Formerly the Hiawatha Line prior to May 2013, the line was originally named after the Milwaukee Road's Hiawatha passenger train and Hiawatha Avenue, reusing infrastructure from the former and running parallel to the latter for a portion of the route. The line opened June 26, 2004, and was the first light rail service in Minnesota. An extension, Bottineau LRT, is planned to open in 2028.
The Toronto subway is a rapid transit system serving Toronto and the neighbouring city of Vaughan in Ontario, Canada, operated by the Toronto Transit Commission (TTC). It is a multimodal rail network consisting of three heavy-capacity rail lines operating predominantly underground, and one elevated medium-capacity rail line. As of December 2022, three new lines are under construction, two light rail lines and one light metro line.
On trains, the expression emergency brake has several meanings:
A traction network or traction power network is an electricity grid for the supply of electrified rail networks. The installation of a separate traction network generally is done only if the railway in question uses alternating current (AC) with a frequency lower than that of the national grid, such as in Germany, Austria and Switzerland.
Various terms are used for passenger railway lines and equipment; the usage of these terms differs substantially between areas:
The Los Angeles Metro Rail is an urban rail transit system serving Los Angeles County, California, United States. It consists of seven lines, including five light rail lines and two rapid transit lines serving 99 stations. It connects with the Metro Busway bus rapid transit system, the Metrolink commuter rail system, and several Amtrak lines.
A track circuit is an electrical device used to prove the absence of a train on rail tracks to signallers and control relevant signals. An alternative to track circuits are axle counters.
The Metro Streetcar, formerly known as the River Rail Streetcar, is a two line heritage streetcar system operating in Little Rock and North Little Rock, Arkansas. It has operated since November 1, 2004. Most recently expanded in 2007, the streetcar now operates over 3.4-mile (5.5 km) of track in a figure-eight loop pattern. The Metro Streetcar is operated by Rock Region Metro. In 2021, the system had a ridership of 22,600.
Sengkang Depot is a train depot in Sengkang, Singapore operated by SBS Transit. It is the first co-location of facilities for both the Mass Rapid Transit (MRT) and Light Rail Transit (LRT). It maintains the trains for the North East line, Sengkang LRT line, and Punggol LRT line, and houses the control centre of the three lines.
Baltimore Light RailLink is a light rail system serving Baltimore, Maryland, United States, as well as its surrounding suburbs. It is operated by the Maryland Transit Administration. In downtown Baltimore, it uses city streets. Outside the central portions of the city, the line is built on private rights-of-way, mostly from the defunct Northern Central Railway, Baltimore and Annapolis Railroad and Washington, Baltimore and Annapolis Electric Railway. In 2021, the system had a ridership of 2,718,100, or about 12,800 per weekday as of the third quarter of 2022.
Light rail is a commonly used mode of public transit in North America. The term light rail was coined in 1972 by the Urban Mass Transportation Administration to describe new streetcar transformations which were taking place in Europe and the United States. The Germans used the term Stadtbahn, which is the predecessor to North American light rail, to describe the concept, and many in UMTA wanted to adopt the direct translation, which is city rail. However, in its reports, UMTA finally adopted the term light rail instead.
The Pittsburgh Light Rail is a 26.2-mile (42.2 km) light rail system in Pittsburgh, Pennsylvania, and surrounding suburbs. It operates as a deep-level subway in Downtown Pittsburgh, but runs mostly at-grade in the suburbs south of the city. The system is largely linear in a north-south direction, with one terminus near Pittsburgh's central business district and two termini in the South Hills. The system is owned and operated by Pittsburgh Regional Transit. The T is one of the surviving first-generation streetcar systems in North America, with the oldest portions of the network dating back to 1903 and the Pittsburgh Railways. It is also one of only three light rail systems in the United States that continues to use the broad 5 ft 2+1⁄2 in Pennsylvania Trolley Gauge on its lines instead of the 4 ft 8+1⁄2 instandard gauge. In 2021, the system had a ridership of 27,975,600.
Line 6 Finch West, also known as the Finch West LRT, is a light rail line under construction in Toronto, Ontario, Canada, to be operated by the Toronto Transit Commission. The 10.3-kilometre (6.4 mi), 18-stop line is to extend from Finch West station on Line 1 Yonge–University to the North Campus of Humber College in Etobicoke. Unlike most of the Toronto streetcar system, the line will be segregated from traffic. As well, it will use transit signal priority and standard gauge rather than the broad Toronto gauge. The line is forecast to carry about 14.6 million rides a year or 40,000 a day by 2031 and will replace the 36 Finch West bus route, which is one of the three busiest bus routes in Toronto. The line is scheduled for completion in 2023, with an estimated cost of $2.5 billion.
İzmir Metro is a light metro system in İzmir, Turkey that is in the process of being extended with new stations being put in service. The current system, consisting of one line, starts from Fahrettin Altay station in the southwestern portion of the metropolitan area and runs towards northeast to end at Evka-3 in Bornova. İzmir's metro line is 20.1-kilometre (12.5 mi) long, and serves 17 stations as of 26 July 2014.
Rapid transit or mass rapid transit (MRT), also known as heavy rail or metro, is a type of high-capacity public transport generally found in urban areas. A rapid transit system that primarily or traditionally runs below the surface may be called a subway, tube, or underground. Unlike buses or trams, rapid transit systems are railways that operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles, and which is often grade-separated in tunnels or on elevated railways.
The 1982 Washington Metro train derailment was an incident involving a single Orange Line Washington Metro train during the afternoon rush hour of January 13, 1982, in Downtown Washington, D.C. in the United States. The train derailed as it was being backed up from an improperly closed rail switch between the Federal Triangle and Smithsonian stations, and caused the deaths of three passengers. Several survivors were trapped for hours, and 25 were injured. The incident was the first resulting in a fatality involving the Metro system and remained as the deadliest incident occurring in the system until the June 22, 2009, collision that resulted in nine fatalities.
Urban rail transit in India plays an important role in intracity transportation in the major cities which are highly populated. It consists of rapid transit, suburban rail, monorail and tram systems. According to a report published in 2021, a total of 2.63 billion people travelled annually in metro systems across India's fifteen major cities, placing the country as one of the busiest urban rapid transit hubs in the world in terms of ridership. The combined length of 822.038 kilometres of metro systems in India makes it the fourth longest in operation in the world.
References
- ↑ "NFPA Glossary of Terms" (pdf) (2013 ed.). NFPA. 5 September 2013. Retrieved 29 April 2014.