Standard-gauge railway

A standard-gauge railway is a railway with a track gauge of 1,435 mm (4 ft 8+12 in). The standard gauge is also called Stephenson gauge (after George Stephenson), International gauge, UIC gauge, uniform gauge, normal gauge and European gauge in Europe,[1][2][3][4][5] and SGR in East Africa. It is the most widely used railway track gauge around the world, with approximately 55% of the lines in the world using it. All high-speed rail lines use standard gauge except those in Russia, Finland, and Uzbekistan. The distance between the inside edges of the rails is defined to be 1435 mm except in the United States and on some heritage British lines, where it is defined in U.S. customary/Imperial units as exactly "four feet eight and one half inches"[6] which is equivalent to 1435.1 mm.


Track gauge
By transport mode
Tram · Rapid transit
Miniature · Scale model
By size (list)

Minimum
  Minimum
  Fifteen inch 381 mm (15 in)

Narrow
 
  • 600 mm
  • 610 mm
  • (1 ft 11+58 in)
  • (2 ft)
 
  • 750 mm
  • 760 mm
  • 762 mm
  • (2 ft 5+12 in)
  • (2 ft 5+1516 in)
  • (2 ft 6 in)
 
  • 891 mm
  • 900 mm
  • 914 mm
  • 950 mm
  • (2 ft 11+332 in)
  • (2 ft 11+716 in)
  • (3 ft)
  • (3 ft)1+1332 in)
  Metre 1,000 mm (3 ft 3+38 in)
  Three foot six inch 1,067 mm (3 ft 6 in)
  Four foot zero inch 1,219 mm (4 ft 0 in)
  Four foot six inch 1,372 mm (4 ft 6 in)

  Standard 1,435 mm (4 ft 8+12 in)

Broad
 
  • 1,445 mm
  • 1,450 mm
  • (4 ft 8+78 in)
  • (4 ft 9+332 in)
  Leipzig gauge 1,458 mm (4 ft 9+1332 in)
  Toronto gauge 1,495 mm (4 ft 10+78 in)
 
  • 1,520 mm
  • 1,524 mm
  • (4 ft 11+2732 in)
  • (5 ft)
 
  • 1,581 mm
  • 1,588 mm
  • 1,600 mm
  • (5 ft 2+14 in)
  • (5 ft 2+12 in)
  • (5 ft 3 in)
  Baltimore gauge 1,638 mm (5 ft 4+12 in)
 
  • 1,668 mm
  • 1,676 mm
  • (5 ft 5+2132 in)
  • (5 ft 6 in)
  Six foot 1,829 mm (6 ft)
  Brunel 2,140 mm (7 ft 14 in)
Change of gauge
Break-of-gauge · Dual gauge ·
Conversion (list) · Bogie exchange · Variable gauge
By location
North America · South America · Europe · Australia

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