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Encyclopedia > Railroad track

Railroad or railway tracks are used on railways, which, together with railroad switches (points), guide trains without the need for steering. Tracks consist of two parallel steel rails, which are laid and fastened upon sleepers (or cross ties) which are embedded in ballast to form the railroad track.

Rails, being made of steel, can carry heavier loads than any other material.

Sleepers spread the load from the rails over the ground, and also serve to hold the rails a fixed distance apart (called the gauge).

Rail tracks are normally laid on a bed of coarse stone chippings known as ballast, which combines resilience, some amount of flexibility, and good drainage; however, track can also be laid on or into concrete (this is called slab track).

Across bridges track is often laid on sleepers across longitudinal timbers.


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Rail transport - Wikipedia, the free encyclopedia (1912 words)
A railway (or railroad) track consists of two parallel rail tracks, usually of steel, generally mounted upon cross beams (termed "railroad ties" or "sleepers") of timber, concrete or steel.
Rail lines that carry little traffic are often built with a single track used by trains in both directions; on rail lines like these, "crossovers", "passing loops" or "passing sidings", which consist of short stretches of double track, are provided along the line to allow trains to pass each other, and travel in opposite directions.
The Leiper Railroad in Pennsylvania was the first permanent railroad, opened in 1810, and the Granite Railroad in 1826 may have been the first to evolve through continuous operations into a common carrier.
Daily Home - City receives ownership of railroad tracks (760 words)
The city is now the owner of railroad tracks that run through its Coosa Industrial Park, and ownership will bring the city annual income from the lease of the tracks to railroad companies wanting to use them.
Money the city makes from the industrial park, including the lease of the railroad tracks, must be put back into the park's development or related activities for the city's first seven years of ownership of the property.
The transfer of the tracks was the last transfer of property from the Army to the city relating to the AOW property, Duck said.
  More results at FactBites »



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