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The earliest tracks consisted of wooden rails on transverse wooden sleepers, which helped maintain the spacing of the rails. Various developments followed, with cast iron plates laid on top of the wooden rails and later wrought iron plates or wrought iron angle plates (angle iron as L-shaped plate rails). Rails were also individually fixed to ...
Heavier rail can support greater axle loads and higher train speeds without sustaining damage than lighter rail, but at a greater cost. In North America and the United Kingdom, rail is graded in pounds per yard (usually shown as pound or lb), so 130-pound rail would weigh 130 lb/yd (64 kg/m). The usual range is 115 to 141 lb/yd (57 to 70 kg/m).
The rail profile is the cross sectional shape of a railway rail, perpendicular to its length. Early rails were made of wood, cast iron or wrought iron. All modern rails are hot rolled steel with a cross section (profile) approximate to an I-beam, but asymmetric about a horizontal axis (however see grooved rail below).
Railroad tie. Wooden ties are used on many traditional railways. In the background is a track with concrete ties. A railroad tie, crosstie (American English), railway tie (Canadian English) or railway sleeper (Australian and British English) is a rectangular support for the rails in railroad tracks. Generally laid perpendicular to the rails ...
A turntable for the Central Railroad of New Jersey. Turnplates at the Park Lane goods station of the Liverpool and Manchester Railway in 1831. Early wagonways were industrial railways for transporting goods—initially bulky and heavy items, particularly mined stone, ores and coal—from one point to another, most often to a dockside to be loaded onto ships. [4]
The line originally used wooden rails and a hemp haulage rope and was operated by human or animal power, through a treadwheel. [9] The line still exists and remains operational, although in updated form. It may be the oldest operational railway. [10] Minecart shown in De Re Metallica (1556). The guide pin fits in a groove between two wooden planks.
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A segment of ballastless track. A ballastless track or slab track is a type of railway track infrastructure in which the traditional elastic combination of sleepers and ballast is replaced by a rigid construction of concrete or asphalt. Ballastless track of the type "Low Vibration Track" in a turnout in the Gotthard Base Tunnel 's Faido ...
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