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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
Two foot
Two foot three inch
600 mm
610 mm
686 mm
(1 ft 11+5⁄8 in)
(2 ft)
(2 ft 3 in)
750 mm
Bosnian gauge
Two foot six inch
750 mm
760 mm
762 mm
(2 ft 5+1⁄2 in)
(2 ft 5+15⁄16 in)
(2 ft 6 in)
Swedish three foot
900 mm
Three foot
Italian metre
891 mm
900 mm
914 mm
950 mm
(2 ft 11+3⁄32 in)
(2 ft 11+7⁄16 in)
(3 ft)
(3 ft1+13⁄32 in)
Metre
1,000 mm
(3 ft 3+3⁄8 in)
Three foot six inch
1,067 mm
(3 ft 6 in)
Four foot
1,219 mm
(4 ft)
Four foot six inch
1,372 mm
(4 ft 6 in)
1432 mm
1,432 mm
(4 ft 8+3⁄8 in)
Standard
1,435 mm
(4 ft 8+1⁄2 in)
Broad
Italian broad gauge
Dresden gauge
1,445 mm
1,450 mm
(4 ft 8+7⁄8 in)
(4 ft 9+3⁄32 in)
Leipzig gauge
1,458 mm
(4 ft 9+13⁄32 in)
Toronto gauge
1,495 mm
(4 ft 10+7⁄8 in)
1520 mm
Five foot
1,520 mm
1,524 mm
(4 ft 11+27⁄32 in)
(5 ft)
Pennsylvania gauge
Pennsylvania gauge
Five foot three inch
1,581 mm
1,588 mm
1,600 mm
(5 ft 2+1⁄4 in)
(5 ft 2+1⁄2 in)
(5 ft 3 in)
Baltimore gauge
1,638 mm
(5 ft 4+1⁄2 in)
Iberian gauge
Five foot six inch
1,668 mm
1,676 mm
(5 ft 5+21⁄32 in)
(5 ft 6 in)
Six foot
1,829 mm
(6 ft)
Brunel
2,140 mm
(7 ft 1⁄4 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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In rail transport, track gauge is the distance between the two rails of a railway track. All vehicles on a rail network must have wheelsets that are compatible with the track gauge. Since many different track gauges exist worldwide, gauge differences often present a barrier to wider operation on railway networks.
The term derives from the metal bar, or gauge, that is used to ensure the distance between the rails is correct.
Railways also deploy two other gauges to ensure compliance with a required standard. A loading gauge is a two-dimensional profile that encompasses a cross-section of the track, a rail vehicle and a maximum-sized load: all rail vehicles and their loads must be contained in the corresponding envelope. A structure gauge specifies the outline into which structures (bridges, platforms, lineside equipment etc.) must not encroach.
wheelsets that are compatible with the trackgauge. Since many different trackgauges exist worldwide, gauge differences often present a barrier to wider...
trackgauges by size. A gauge is measured between the inner faces of the rails. For ridable miniature railways and minimum gauge railways, the gauges...
uses standard-gauge (1,435 mm (4 ft 8+1⁄2 in)) tracks. Trains portal Rail gauge in North America Rail gauge in South America Rail gauge in Australia...
sometimes necessary for track to carry railway vehicles with wheels matched to two different gauges. Such track is described as dual gauge – achieved either...
5 ft 6 in / 1,676 mm is a broad trackgauge, used in India, Pakistan, western Bangladesh, Sri Lanka, Argentina, Chile, and on BART in the San Francisco...
Originally, various trackgauges were used in the United States. Some railways, primarily in the northeast, used standard gauge of 4 ft 8+1⁄2 in (1,435 mm);...
railway trackgauge of 5 ft (1,524 mm) first appeared in the United Kingdom and the United States. This gauge became commonly known as "Russian gauge", because...
variable gauge system allows railway vehicles in a train to travel across a break of gauge between two railway networks with different trackgauges. For through...
791 km of track with this gauge. Since 1992, all high-speed rail lines in Spain have been built to 1,435 mm (4 ft 8+1⁄2 in) standard gauge, providing...
Gauge conversion is the changing of one railway trackgauge (the distance between the running rails) to another. If tracks are converted to a narrower...
Italy had two unusual dominant trackgauges which were legally defined depending on the terrain encountered. The gauge of 1,445 mm (4 ft 8+7⁄8 in) was...
up gauge in Wiktionary, the free dictionary. Gauge (/ˈɡeɪdʒ/ GAYJ) may refer to: Gauge (instrument), any of a variety of measuring instruments Gauge (firearms)...
With railways, a break of gauge occurs where a line of one trackgauge (the distance between the rails, or between the wheels of trains designed to run...
Trackgauge in Canada is standard gauge of 4 ft 8+1⁄2 in (1,435 mm), except for Toronto transit systems and the White Pass and Yukon Route. Rail lines...
Railways with a trackgauge of 3 ft 6 in (1,067 mm) were first constructed as horse-drawn wagonways. The first intercity passenger railway to use 3 ft...
The trackgauge adopted by the mainline railways in Ireland is 1,600 mm (5 ft 3 in). This unusually broad trackgauge is otherwise found only in Australia...
standard gauge. Some of the largest and oldest subway systems in the world use standard gauge in agreement with the country wide dominant usage for track gauge...
403 mi) of narrow-gauge railways, 18,007 kilometres (11,189 mi) of standard gauge railways and 2,685 kilometres (1,668 mi) of broad gauge railways. In the...
between different countries, and gauges may vary across a network, even if the trackgauge is uniform. The term loading gauge can also be applied to the maximum...
major manufacturers. The OO trackgauge of 16.5 mm (0.65 in) (same as the 1:87 HO scale) corresponds to prototypical gauge of 4 ft 1+1⁄2 in, rather than...
international gaugeGauges wider than standard gauge are called broad gauge; narrower, narrow gauge. Some stretches of track are dual gauge, with three...
classic broad gaugetrack, in which the piles were forgone and transoms, similar to sleepers, maintained the rail gauge. Today, most rail track uses the standard...
with their track length, trackgauge, electrification system. The vast majority of tram systems use 1,435 mm (4 ft 8+1⁄2 in) standard gauge. Generally...
categorised by their wheel or trackgauge. An HO scale or OO gauge model locomotive, for example, has a wheel gauge of 16.5mm. Trackgauge – determines the distance...