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In the 1960s, the gauge was selected for use in the Bay Area Rapid Transit system, serving the San Francisco Bay Area; it is the only place in the United States where this gauge is in use. The rapid transit segment of the system covers 109 miles (175 km) of double track in revenue service with additional sidings and maintenance facilities.
The vast majority of North American railroads are standard gauge (4 ft 8 + 1 ⁄ 2 in / 1,435 mm).Exceptions include some streetcar, subway and rapid transit systems, mining and tunneling operations, and some narrow-gauge lines particularly in the west, e.g. the isolated White Pass and Yukon Route system, and the former Newfoundland Railway.
The United States customary units for length did not agree with the imperial system until 1959, when one international yard was defined as 0.9144 meters and, as derived units, 1 foot (= 1 ⁄ 3 yd) as 0.3048 meter and 1 inch (= 1 ⁄ 36 yd) as 25.4 mm. The list shows the imperial and other units that have been used for track gauge definitions:
Railways with a railway track gauge of 5 ft (1,524 mm) first appeared in the United Kingdom and the United States. This gauge became commonly known as "Russian gauge", because the government of the Russian Empire chose it in 1843. Former areas and states of the Empire (such as Finland) have inherited this standard. [1]
The vast majority of rapid transit systems use 1,435 mm (4 ft 8 + 1 ⁄ 2 in) standard gauge.Some of the largest and oldest subway systems in the world use standard gauge in agreement with the country wide dominant usage for track gauge, e.g. London Underground (1863), Chicago "L" (1892), Vienna Metro (1898), Paris Métro (1900), Berlin U-Bahn (1902), New York City Subway (1904), Stockholm ...
The large network of narrow-gauge sugar cane light railways, almost all 610 mm (2 ft) gauge, is not shown, Rail gauge in Australia. Rail gauge world Track gauge Rail gauge world Map Rail gauge world Map, 600mm. to 1676 mm. Rail gauge world Map, 597 mm. to 2140 mm. Triple-gauge track on turntable, Gladstone, South Australia.
Contact us; Contribute Help; Learn to edit; Community portal; Recent changes; Upload file; ... Track gauges are ordered by actual track gauge, not by title or unit name.
This presumably means track gauge, loading gauge, structure gauge, couplings, brakes, electrification, etc. [45] [circular reference] An exception may be double stacking, which has a height limit of 5,850 mm (19 ft 2 in). Metre gauge in China has a gauge of 3,050 mm (10 ft 0 in).