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A railway track (CwthE and UIC terminology) or railroad track (NAmE), also known as permanent way (CwthE) [1] or "P Way" (BrE [2] and Indian English), is the structure on a railway or railroad consisting of the rails, fasteners, sleepers (railroad ties in American English) and ballast (or slab track), plus the underlying subgrade.
When American railroad tracks extended to the point that they began to interconnect, it became clear that a single nationwide gauge would be beneficial. Where different gauges meet, there is a "break of gauge". To overcome that problem, special compromise cars were able to run 4 ft 10 in (1,473 mm) and standard gauge track. [18]
In the later 1950s, general track maintenance standards deteriorated rapidly due to labour shortages and, on some routes, faster freight train speeds. Freight trains consisted almost entirely of short wheelbase (10 ft or 3.0 m) four-wheeled wagons carried on a very stiff elliptical leaf spring suspension, and these wagons showed a rapid rate of ...
Cylindrical wheel treads have to "skid" on track curves so increase both drag and rail and wheel wear. On very straight track a cylindrical wheel tread rolls more freely and does not "hunt". The gauge is narrowed slightly and the flange fillets keep the flanges from rubbing the rails. United States practice is a 1 in 20 cone when new.
A right-hand railroad switch with point indicator pointing to right Animated diagram of a right-hand railroad switch. Rail track A divides into two: track B (the straight track) and track C (the diverging track); note that the green line represents direction of travel only, the black lines represent fixed portions of track, and the red lines depict the moving components.
The American gauges converged, as the advantages of equipment interchange became increasingly apparent. Notably, all the 5 ft (1,524 mm) broad gauge track in the South was converted to "almost standard" gauge 4 ft 9 in (1,448 mm) over the course of two days beginning on 31 May 1886. [21] See Track gauge in the United States.
The Railway Regulation (Gauge) Act 1846 [1] (9 & 10 Vict. c. 57) or the Regulating the Gauge of Railways Act 1846 or the Gauge of Railways Act 1846 is an act of the Parliament of the United Kingdom, that was designed to standardise railway tracks.
A steam train on a revived segment of the Sandy River and Rangeley Lakes Railroad in Maine. A Crown Metal Products-built train on Hersheypark's Dry Gulch Railroad in Pennsylvania in 1966. A list of 2 ft (610 mm) narrow-gauge railways in the United States.
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