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Catch points are used to derail vehicles which are out of control (known as runaways) on steep slopes. Trap points are used to protect main railway lines from unauthorised vehicles, moving onto them from sidings or branch lines. Either of these track arrangements may lead the vehicles into a sand drag or safety siding, track arrangements which ...
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.
Track gauge. Originally, various track gauges were used in the United States. Some railways, primarily in the northeast, used standard gauge of 4 ft 8⁄ in (1,435 mm); others used gauges ranging from 2 ft (610 mm) to 6 ft (1,829 mm). As a general rule, southern railroads were built to one or another broad gauge, mostly 5 ft (1,524 mm), while ...
Track gauge. Track geometry is concerned with the properties and relations of points, lines, curves, and surfaces [1] in the three-dimensional positioning of railroad track. The term is also applied to measurements used in design, construction and maintenance of track. Track geometry involves standards, speed limits and other regulations in the ...
Cats is a sung-through musical with music by Andrew Lloyd Webber.It is based on the 1939 poetry collection Old Possum's Book of Practical Cats by T. S. Eliot.The musical tells the story of a tribe of cats called the Jellicles and the night they make the "Jellicle choice" by deciding which cat will ascend to the Heaviside Layer and come back to a new life.
Track gauge. The vast majority of North American railroads are standard gauge (4 ft 8⁄ 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.
In rail transport, track gauge is the distance between the two rails of a railway track. All vehicles on a rail network must have wheelsets that are compatible with the track gauge. Since many different track gauges exist worldwide, gauge differences often present a barrier to wider operation on railway networks.
Measuring rail gauge. During the early days of rail, there was considerable variation in the gauge used by different systems, and in the UK during the railway building boom of the 1840s Brunel's broad gauge of 7 ft 1 ⁄ 4 in (2,140 mm) was in competition with what was referred to at the time as the 'narrow' gauge of 1,435 mm (4 ft 8 + 1 ⁄ 2 in).