Light rail is a form of passenger urban rail transit using rolling stock derived from tram technology while also having some features from heavy rapid transit.
An overhead line or overhead wire is an electrical cable that is used to transmit electrical energy to electric locomotives, electric multiple units, 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.
On trains, the expression emergency brake has several meanings:
A pantograph is an apparatus mounted on the roof of an electric train, tram or electric bus to collect power through contact with an overhead line. The term stems from the resemblance of some styles to the mechanical pantographs used for copying handwriting and drawings.
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:
Railway electrification systems using alternating current (AC) at 25 kilovolts (kV) are used worldwide, especially for high-speed rail. It is usually supplied at the standard utility frequency, which simplifies traction substations. The development of 25 kV AC electrification is closely connected with that of successfully using utility frequency.
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 2023, the system had a ridership of 22,600.
The Baltimore Light RailLink is a light rail system serving Baltimore, Maryland, United States, and its northern and southern 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. The system had a ridership of 3,546,300, or about 14,400 per weekday, as of the first quarter of 2024.
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 2023, the system had a ridership of 3,417,100.
Line 6 Finch West, also known as the Finch West LRT, is a light rail transit 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. The line will operate in a dedicated above-ground right-of-way, much of it within Finch Avenue, segregated from street traffic. The line 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 36B Finch West bus route, which is one of the three busiest bus routes in Toronto. Line 6 was originally expected to open within the first half of 2024, with an estimated cost of CA$2.5 billion. For budget purposes, the TTC made the assumption that Line 6 would have open no earlier than September 2024. However, the builder, Mosaic Transit Group, expects the line to open by the end of 2024.
The İzmir Metro is a light metro system serving the city of İzmir, Turkey. The current system, consisting of one line, starts from Kaymakamlık 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 27-kilometre (17 mi) long, and serves 24 stations as of 4 March 2024.
Rapid transit or mass rapid transit (MRT), commonly referred to as metro, is a type of high-capacity public transport that is generally built in urban areas. A grade separated rapid transit line below ground surface through a tunnel can be regionally called a subway, tube, or underground. They are sometimes grade-separated on elevated railways, in which case some are referred to as el trains – short for "elevated" – or skytrains. Rapid transit systems are railways, usually electric, that unlike buses or trams operate on an exclusive right-of-way, which cannot be accessed by pedestrians or other vehicles.
12th & I station is an at-grade light rail station on the Blue Line of the Sacramento RT Light Rail system operated by the Sacramento Regional Transit District. The station is located alongside 12th Street at its intersection with I Street, after which the station is named, in the city of Sacramento, California.
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. The 4-aspect system widely adopted by the PRR and its successor railroads has become the dominant railroad cab signaling system in North America with versions of the technology also being adopted in Europe and rapid transit systems. In its home territory on former PRR successor Conrail owned lines and on railroads operating under the NORAC Rulebook it is known simply as Cab Signaling System or CSS.
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.
