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Iran, with its standard-gauge rail system, has a break of gauge with 1,520 mm (4 ft 11 + 27 ⁄ 32 in) gauge at the borders with Azerbaijan and Turkmenistan, and also with Pakistan's 5 ft 6 in gauge railway at Zahedan. The break-of-gauge station at Zahedan was built outside the city, as the existing station was hemmed in by built-up areas. [22]
In 1845 a Royal Commission on Railway Gauges was created to look into the growing problem, and this led to the Regulating the Gauge of Railways Act 1846, [13] which forbade the construction of broad gauge lines unconnected with the broad gauge network.
Track gauge or rail gauge (also known as track gage in North America [8]) is the distance between the inner sides (gauge sides) of the heads of the two load bearing rails that make up a single railway line. Each country uses different gauges for different types of trains.
See Narrow-gauge railways in Denmark: 686 mm: 2 ft 3 in: See List of 2 ft 3 in gauge railways: 693 mm: 2 ft 3 + 9 ⁄ 32 in: Sweden: 28 Swedish inches. [28] Several railways. 700 mm 2 ft 3 + 9 ⁄ 16 in: Denmark See Narrow-gauge railways in Denmark and Narrow-gauge railways in Europe. Common for sugar beet or sugar cane railways and peat railways.
Following the Civil War, trade between the South and North grew sufficiently large that the break of gauge became a major economic nuisance, impeding through shipments. Competitive pressures induced most North American railways to convert to standard gauge by 1880, but Southern railroads retained their distinct, 5 ft (1,524 mm) gauge.
Standard gauge railway lines made a return in 2014 on experimental railway line in Aceh. The railway tracks of Java and Sumatra use 1,067 mm (3 ft 6 in). Iran: Islamic Republic of Iran Railways: 12,998 km (8,077 mi) Iraq: Iraqi Republic Railways: 485 km (301 mi) Ireland Transport Infrastructure Ireland: Luas in Dublin: Israel
The minimum railway curve radius is the shortest allowable design radius for the centerline of railway tracks under a particular set of conditions. It has an important bearing on construction costs and operating costs and, in combination with superelevation (difference in elevation of the two rails) in the case of train tracks , determines the ...
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.