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Track (measured between center line of wheels) In automobiles (and other wheeled vehicles which have two wheels on an axle), the axle track is the distance between the hub flanges on an axle. [1] Wheel track, track width or simply track refers to the distance between the centerline of two wheels on the same axle. In the case of an axle with ...
Terms such as broad gauge and narrow gauge do not have any fixed meaning beyond being materially wider or narrower than standard. In British practice, the space between the rails of a track is colloquially referred to as the "four-foot", and the space between two tracks the "six-foot", descriptions relating to the respective dimensions.
The American gauges converged, as the advantages of equipment interchange became increasingly apparent. Notably, all the 5 ft (1,524 mm) broad gauge track in the South was converted to "almost standard" gauge 4 ft 9 in (1,448 mm) over the course of two days beginning on 31 May 1886. [21] See Track gauge in the United States.
Railways with a track gauge between 500 mm (19 + 3 ⁄ 4 in) and 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge. Diamond crossing dual gauge double line narrow-gauge and standard-gauge. Narrow gauge track.
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.
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).
Comparison of 4 ft 8 + 1 ⁄ 2 in (1,435 mm) standard gauge (blue) and 3 ft 6 in (1,067 mm) (red) width; the difference is 14.5 in (370 mm), or about 26 per cent of standard gauge. 1,067 mm (3 ft 6 in) between the inside of the rail heads, its name and classification vary worldwide and it has about 112,000 kilometres (70,000 mi) of track.
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.