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In rail transport, a train is a vehicle or (more frequently) a string of vehicles capable of being moved along a continuous line of rails or other guideway for the purpose of conveying freight or passengers between points on a predetermined route. The train may be hauled or propelled by one or more vehicles designed exclusively for that purpose (locomotives) or may be driven by a number of motors incorporated in all or several of the vehicles (multiple units). As of 2018[update], there are approximately 1,052,000 kilometres (654,000 mi) of railway track in use worldwide. (World Bank (via Archive.org)) |
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Under the Whyte notation for the classification of steam locomotives, 4-2-0 represents the wheel arrangement of four leading wheels on two axles, two powered and coupled driving wheels on one axle, and no trailing wheels. Other equivalent classifications are 2′A in UIC classification (also known as German classification and Italian classification), 210 in French classification, 13 in Turkish classification and 1/3 in Swiss classification. This type of locomotive, often called a Jervis type, was common on American railroads from the 1830s through the 1850s. The first 4-2-0 built was the Experiment (later named Brother Jonathan) for the Mohawk and Hudson Railroad in 1832. It was built by the West Point Foundry based on a design by John B. Jervis. Having little else to reference, the manufacturers patterned the boiler and valve gears after locomotives built by Robert Stephenson of England. In England, it had developed from the 2-2-2 design of Stephenson's first Long Boiler locomotive, around 1840, which he had altered to place two pairs of wheels at the front with the outside cylinders between them to improve stability.
Recently selected: Lillesand–Flaksvand Line - Wood Siding railway station - Sloatsburg (Metro-North station)
The Schneeberg summit station of the Schneebergbahn and Empress Elisabeth memorial church in Austria, September 2005. In the station, a steam train and a Salamander diesel locomotive traction unit with a rake of conventional carriages can be seen.
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WikiProject Trains (Shortcut: WP:TWP)
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