::Track gauge conversion

::concepts

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Track gauge
By transport mode
TramRapid transit
MiniatureScale model
By size (list)
Graphic list of track gauges

Minimum
  Fifteen inch 381 mm (15 in)

Narrow
  Two foot,
600 mm
597 mm
600 mm
603 mm
610 mm
(1 ft 11 12 in)
(1 ft 11 58 in)
(1 ft 11 34 in)
(2 ft)
  750 mm,
Bosnian,
Two foot six inch,
800 mm
750 mm
760 mm
762 mm
800 mm
(2 ft 5 12 in)
(2 ft 5 1516 in)
(2 ft 6 in)
(2 ft 7 12 in)
  Swedish three foot,
900 mm,
Three foot
891 mm
900 mm
914 mm
(2 ft11 332 in)
(2 ft 11 716)
(3 ft)
  Metre 1,000 mm (3 ft 3 38 in)
  Three foot six inch,
Cape, CAP, Kyōki
1,067 mm (3 ft 6 in)
  Four foot six inch 1,372 mm (4 ft 6 in)

  Standard 1,435 mm (4 ft 8 12 in)

Broad
  Russian,
Five foot
1,520 mm
1,524 mm
(4 ft 11 2732 in)
(5 ft)
  Irish 1,600 mm (5 ft 3 in)
  Iberian 1,668 mm (5 ft 5 2132 in)
  Indian 1,676 mm (5 ft 6 in)
  Six foot 1,829 mm (6 ft)
  Brunel 2,140 mm (7 ft 14 in)
Change of gauge
Break-of-gaugeDual gauge
Conversion (list)Bogie exchangeVariable gauge
By location
North AmericaSouth AmericaEurope
World map, rail gauge by region
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{{#invoke:sidebar|sidebar |image = Three rail tracks 350.jpg |pretitle = Part of a series on |title = Rail transport |content1 =

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|contentclass = hlist }} In rail transport, gauge conversion is the process of converting a railway from one rail gauge to another, through the alteration of the railway tracks. An alternative to gauge conversion is dual gauge track, or gauge conversion of the rail vehicles themselves.

Ideally railways should all be built to the same gauge, since a wide range of gauges from narrow to broad are of similar value in carrying heavy loads at low cost, while small differences of gauge create tremendous break-of-gauge costs and inconvenience.


Track gauge conversion sections
Intro   Permanent way    Structure gauge    Gauge orphan    Rolling stock    Examples    Dual Gauge feasibility    Variable gauge axles    See also    References   

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