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Quadruple track section of the West Coast Main Line, England. A quadruple-track railway (also known as a four-track railway) is a railway line consisting of four parallel tracks with two tracks used in each direction. Quadruple-track railways can handle large amounts of traffic, and so are used on very busy routes or sections.
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Vertical layout is the track layout on the vertical plane including the concepts such as crosslevel, cant and gradient. [40] [41] A sidetrack is a railroad track other than siding that is auxiliary to the main track. The word is also used as a verb (without object) to refer to the movement of trains and railcars from the main track to a siding ...
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In track geometry, the horizontal layout involves the layout of three main track types: tangent track (straight line), curved track, and track transition curve (also called transition spiral or spiral) which connects between a tangent and a curved track. Curved track can also be categorized into three types.
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.
This is a route-map template for Pennsylvania Station, a New York City railway station.. For a key to symbols, see {{railway line legend}}.; For information on using this template, see Template:Routemap.
The line south of this point was converted from a two-track surface line to a four-track grade-separated line in 1907, and the portion north of this point was rebuilt from a two-track open cut to a four-track open cut in 1919. On August 1, 1920, a tunnel under Flatbush Avenue opened, connecting the Brighton Line to the Broadway subway in Manhattan.