Topic summary
Normal gauge

Extracted from the Wikipedia article Standard-gauge railway.
A standard-gauge railway is a railway with a track gauge of 1,435 mm (4 ft 8+1⁄2 in). The standard gauge is also called Stephenson gauge (after George Stephenson), international gauge, UIC gauge, uniform gauge, normal gauge in Europe (excluding the Iberian peninsula), and SGR in East Africa. It is the most widely used track gauge around the world, with about 60% of the lines in the world using it.