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- DictionaryStand·ard gauge/ˈstandərd ɡāj/
noun
- 1. a railroad gauge of 56.5 inches (1.435 m), standard in the US, Britain, and many other parts of the world.
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noun
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Rail track gauge – international standard gauge
A standard-gauge railway is a railway with a track gauge of 1,435 mm. The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe, and SGR in East Africa. It is the most widely used track gauge around the world, with about 55% of the lines in the world using it. Wikipedia