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Dual gauge information


In railway engineering, "gauge" is the transverse distance between the inner surfaces of the heads of two rails, which for the vast majority of railway lines is the number of rails in place. However, it is sometimes necessary for track to carry railway vehicles with wheels matched to two different gauges. Such track is described as dual gauge – achieved either by addition of a third rail, if it will fit, or by two additional rails. Dual-gauge tracks are more expensive to configure with signals and sidings, and to maintain, than two separate single-gauge tracks. It is therefore usual to build dual-gauge or other multi-gauge tracks only when necessitated by lack of space or when tracks of two different gauges meet in marshalling yards or passenger stations. Dual-gauge tracks are by far the most common configuration, but triple-gauge tracks have been built in some situations.

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Dual gauge

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gauges. Such track is described as dual gauge – achieved either by addition of a third rail, if it will fit, or by two additional rails. Dual-gauge tracks...

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Track gauge

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narrow-gauge equipment. Solutions to interchangeability problems include bogie exchanges, a rollbock system, dual gauge, variable gauge, or gauge conversion...

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5 ft and 1520 mm gauge railways

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Russian gauge (1,520 mm) and broad gauge 1,524 mm. These gauges cannot make 3-rail dual gauge with Russian gauge. 1,676 mm (5 ft 6 in) Indian gauge 1,668 mm...

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Rail gauge in Australia

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Even dual gauge with a third rail for combining Irish gauge and standard gauge was rejected as too reckless, as the gap between these gauges of 6.5...

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Break of gauge

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transporter wagons, dual gauge, and even containerization or variable gauge axles), but they were not implemented at the height of the Gauge War in the 1840s...

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3 ft 6 in gauge railways

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gauge. Dual gauge between 1,067 mm (3 ft 6 in) gauge and another similar gauge can make these bonus gauges. 1,435 mm (4 ft 8+1⁄2 in) standard gauge,...

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Variable gauge

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track change wheelset. Variable gauge axles help solve the problem of a break-of-gauge without having to resort to dual gauge tracks or transshipment. Systems...

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5 ft 6 in gauge railway

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while the metre gauge network is primarily located to its east. The Jamuna Bridge is a mixed-use bridge that contains a dual gauge connection across...

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Gauntlet track

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and Somerton, is also dual gauge gauntlet track. On the Western standard gauge line from Melbourne towards Adelaide, dual gauge track can be found between...

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Rail transport in Poland

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stretch of dual-gauge track terminates at Grodno Lithuania – 3 kV DC/25 kV AC, as part of the construction of Rail Baltica a new standard-gauge diesel line...

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Track gauge conversion

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to Manual gauge changing. Wikimedia Commons has media related to Automated gauge changing. List of gauge conversions Break-of-gauge Dual gauge Wheel centres...

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Seikan Tunnel

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青函トンネル, Seikan Tonneru or 青函隧道, Seikan Zuidō) is a 53.85 km (33.46 mi) dual-gauge railway tunnel in Japan, with a 23.3 km (14.5 mi) portion under the seabed...

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Bangladesh Railway

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currently[when?] converting its railway system to dual gauge system, to enable both broad gauge and metre gauge trains to run; it is also developing extensive...

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Rail transport in Lithuania

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mixed gauge network: the majority is broad gauge (a legacy of the Russian standard) with rapidly expanding lines using the standard gauge or dual gauge track...

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Track gauge in Europe

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standard gauge of 1,435 mm (4 ft 8+1⁄2 in). Some countries use broad gauge, of which there are three types. Narrow gauges are also in use. Russian gauge 1,520 mm...

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Shinkansen

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and Akita, one of the two narrow gauge lines was regauged, and a section of the remaining narrow gauge line is dual gauge, providing the opportunity for...

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Track gauge in the United States

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lines converted to standard gauge, some having been first dual gauged with a third running rail allowing standard gauge trains to share the track, prior...

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Track gauge in Canada

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Track gauge in the United States is standard gauge. In 1867 the Great Western Railway converted to dual gauge the 229 miles (369 km) line from Windsor to...

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Gauge theory

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In physics, a gauge theory is a type of field theory in which the Lagrangian, and hence the dynamics of the system itself, do not change under local transformations...

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Ridable miniature railway

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7+1⁄4 in (184 mm) gauge being by far the most numerous. Many layouts have dual-gauge track combing two, three or even more different gauges. Ridable miniature...

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List of track gauges

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track gauges by size. A gauge is measured between the inner faces of the rails. For ridable miniature railways and minimum gauge railways, the gauges are...

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African Union of Railways

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generally standard gauge. However, conspicuous by their absence, is the possibility of dual gauge, containerisation, variable gauge axles, bogie exchange...

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Rail transport in Ukraine

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Ukraine - Halmeu, Romania: dual gauge crossing, not electrified; currently freight only. Dual gauge line enables standard gauge connections from Halmeu with...

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