Spain, Dontae (2012) Track gauges in railway systems engineering. Orange Apple, Delhi, India. ISBN 978-81-323-2909-1
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Abstract
Track gauge or rail gauge is the distance between the inner sides of the heads of the two load bearing rails that make up a single railway line. Sixty percent of the world's railways use a standard gauge of 1,435 mm (4 ft 8 1⁄2 in). Wider gauges are called broad gauge; smaller gauges, narrow gauge. Break-of-gauge refers to the meeting of different gauges. Some stretches of track are dual gauge, with three or four rails, allowing trains of different gauges to share them. Gauge conversion can resolve break-of-gauge problems. An exception of a railway with no gauge is monorail where there is only one supporting rail. Some electrified railways use non load bearing third rail and occasionally a '4th' rail. These additional rails are positioned between or outside the 'running rails' to feed and return electrical current, they do not define the rail gauge. Gauge tolerances specify how much the actual gauge may vary from the nominal gauge. For example, the U.S. FRA specifies that the actual gauge of track that is rated for a maximum of 60 mph (96.6 km/h) must be between 4 ft 8 in (1,422 mm) and 4 ft 9 1⁄2 in (1,460 mm). A track gauge is also the name of the measuring device used to test whether rails are within the correct gauge.
| Item Type: | Book |
|---|---|
| Subjects: | T Technology > TF Railroad engineering and operation |
| Divisions: | Electronic Books |
| Depositing User: | Practical Student 02 |
| Date Deposited: | 10 Apr 2022 07:21 |
| Last Modified: | 31 Jul 2022 04:17 |
| URI: | http://odlsystem2.utm.my/id/eprint/2976 |
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