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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.
Originally, various track gauges were used in the United States.Some railways, primarily in the northeast, used standard gauge of 4 ft 8 + 1 ⁄ 2 in (1,435 mm); others used gauges ranging from 2 ft (610 mm) to 6 ft (1,829 mm).
In rail transport, track gauge is the distance between the two rails of a railway track. ... [note 1] and the final gauge conversion to standard gauge in 1892. During ...
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.
This is a list of notable railway track gauge conversions, railway lines where the distance between the rails is broadened or narrowed.Conversions to broader gauge are generally to accommodate heavier loads or for wider cars, while conversions to narrower gauge tend to be for compatibility with other lines on a rail network.
The new gauge was close enough that standard gauge equipment could run on it without problem. By June 1886, all major railroads in North America were using approximately the same gauge. The final conversion to true standard gauge took place gradually as track was maintained. [1]
5 ft 6 in (1,676 mm) is a broad track gauge, used in India, Pakistan, western Bangladesh, Sri Lanka, Argentina, Chile, and on BART in the San Francisco Bay Area. In North America, it is called Indian, Provincial, Portland, or Texas gauge. In Argentina and Chile, it is known as "trocha ancha" (Spanish for "broad gauge").
Placement of rails when it is necessary for track to be triple-gauge – in this case, 1,600 mm (5 ft 3 in), 1,435 mm (4 ft 8 + 1 ⁄ 2 in) and 1,067 mm (3 ft 6 in), as at Gladstone and Peterborough in South Australia The former break-of-gauge platform for on the Sydney–Melbourne mainline at Albury station: standard gauge on the left; broad ...