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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.
The first major application of train tracks was given in the original 1992 paper of Bestvina and Handel [1] where train tracks were introduced. The paper gave a proof of the Scott conjecture which says that for every automorphism α of a finitely generated free group F n the fixed subgroup of α is free of rank at most n.
Railroad cutoffs (49 P) J. Rail junctions (10 C, 2 P) L. ... Pages in category "Railway track layouts" The following 13 pages are in this category, out of 13 total.
For example, North America uses the reference rail as the line rail which is the east rail of tangent track running north and south, the north rail of tangent track running east and west, the outer rail (the rail that is further away from the center) on curves, or the outside rails in multiple track territory. [6] For Swiss railroad, the ...
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.
This is a route-map template for Grand Central Terminal, a New York City train station.. For a key to symbols, see {{railway line legend}}.; For information on using this template, see Template:Routemap.
Plate rail was an early type of rail and had an 'L' cross-section in which the flange kept an unflanged wheel on the track. The flanged rail has seen a minor revival in the 1950s, as guide bars, with the Paris Métro (Rubber-tyred metro or French Métro sur pneus) and more recently as the Guided bus.
Albany and Susquehanna Railroad, Erie Railroad until June 22, 1880, Delaware, Lackawanna and Western Railroad March–May 1876, Predominant gauge used by railroads along southern tier of New York State that connected to the pioneering Erie Railroad. Most lines converted to standard gauge 1876-1880, along with the Erie. 1,850 mm 6 ft 27 ⁄ 32 in