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The Dublin & Drogheda Railway underwent a gauge conversion because the gauges were too close to allow a dual-gauge line. Italy. The Potenza – Avigliano Lucania line in Italy is a dual gauge rail with 1435 mm (4 ft 8 + 1 ⁄ 2 in) and 950 mm (3 ft 1 + 3 ⁄ 8 in) tracks. Japan. In Japan, the national standard is 1067 mm (3 ft 6 in) narrow gauge.
The Inland Railway line from Melbourne to Brisbne of 1600km length includes about 300km of dual gauge that improves the curves and gradients of the original Brisbane to Toowoomba line. This dual gauge replaces the narrow gauge that was chosen to enable cheap 100m radius curves and 2% gradients. 900 mm (2 ft 11 + 7 ⁄ 16 in) 1,000 mm (3 ft 3 ...
Track gauge conversion is the changing of one railway track gauge (the distance between the running rails) to another. In general, requirements depend on whether the conversion is from a wider gauge to a narrower gauge or vice versa, on how the rail vehicles can be modified to accommodate a track gauge conversion, and on whether the gauge conversion is manual or automated.
If the difference between the two gauges is large enough – for example between 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge and 3 ft 6 in (1,067 mm) – three-rail dual-gauge is possible, but if not – for example between 3 ft 6 in (1,067 mm) and 1,000 mm (3 ft 3 + 3 ⁄ 8 in) metre gauge – four rails must be used. Dual-gauge rail lines ...
Haifa, Carmelit subway railway line - Funicular: England North Cliff Lift, Scarborough: 2,000 mm 6 ft 6 + 3 ⁄ 4 in: Scotland Cairngorm Mountain Railway - Funicular: 2,134 mm 7 ft: England Original definition of Brunel's broad gauge. This rail gauge was soon changed to 7 ft 1 ⁄ 4 in (2,140 mm) [105] to ease running in curves. 2,140 mm 7 ft 1 ...
The horizontal alignment (or alinement in the United States) is done by using a predefined length of string line (such as 62-foot in the US and 20 meters in Australia [5]) to measure along the gauge side of the reference rail. It is the distance (in inches or millimeters) from the midpoint of the string line to the gauge of the reference rail.
At the border with Sweden where the Torne separates the cities of Tornio, Finland and Haparanda, Sweden, a two-kilometre section of dual gauge track uses a gauntlet configuration because the 1,524 mm (5 ft) gauge used in Finland and 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge used in Sweden are too close for a common rail to be shared.
Hesston Steam Museum (dual-gauge lines with 3 ft (914 mm) gauge track also present) (separate 14 in (356 mm) gauge railway and separate 7 + 1 ⁄ 2 in (190.5 mm) gauge railway also present) (operating) Kentucky: Richwood Tahoe Railroad (operating) Louisiana: Bayou Le Zoo Choo Choo (located in Alexandria Zoological Park) (operating) Maine