Minimum-gauge railway

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Not to be confused with Ridable miniature railway.
Track gauge
By transport mode
Tram · Rapid transit
Miniature · Scale model
By size (list)
Graphic list of track gauges
Minimum
  Fifteen inch 381 mm (15 in)
Narrow
  600 mm,
Two foot		 597 mm
600 mm
603 mm
610 mm		 (1 ft ​11 1⁄2 in)
(1 ft ​11 5⁄8 in)
(1 ft ​11 3⁄4 in)
(2 ft)
  750 mm,
Bosnian,
Two foot six inch,
800 mm		 750 mm
760 mm
762 mm
800 mm		 (2 ft ​5 1⁄2 in)
(2 ft ​5 15⁄16 in)
(2 ft 6 in)
(2 ft ​7 1⁄2 in)
  Swedish three foot,
900 mm,
Three foot		 891 mm
900 mm
914 mm		 (2 ft​11 3⁄32 in)
(2 ft ​11 7⁄16)
(3 ft)
  Metre 1,000 mm (3 ft ​3 3⁄8 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 1⁄2 in)
Broad
  Russian,
Five foot		 1,520 mm
1,524 mm		 (4 ft ​11 27⁄32 in)
(5 ft)
  Irish 1,600 mm (5 ft 3 in)
  Iberian 1,668 mm (5 ft ​5 21⁄32 in)
  Indian 1,676 mm (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
World map, rail gauge by region
This box:

Minimum gauge railways have a gauge of most commonly 15 in (381 mm),[1] 400 mm (15 3⁄4 in), 16 in (406 mm), 18 in (457 mm), 500 mm (19 3⁄4 in) or 20 in (508 mm). The notion of minimum gauge railways was originally developed by estate railways[1] and by the French company of Decauville for industrial railways.

History

The term was originally conceived by Sir Arthur Percival Heywood who used it in 1874 to describe the principle behind his Duffield Bank Railway, specifically its 15-inch gauge, distinguishing it from a "Narrow Gauge" railway. Having previously built a small railway of 9 in (229 mm) gauge, he settled on 15 in (381 mm) as the minimum that he felt was practical.[1] An important feature was that it was intended to be easy to lay on, for instance, a battlefield.

A general aspect about minimum gauge railways is that the loading gauge is maximized, which is to say the dimension of the equipment is made as large as possible with respect to the track gauge, while still providing enough stability to keep it from tipping over. Also that it should be easy to lay and to move.

A number of 18 in (457 mm) gauge railways were built in Britain to serve ammunition depots and other military facilities, particularly during the First World War.

In France Decauville produced a range of portable track railways running on 400 mm (15 3⁄4 in) and 500 mm (19 3⁄4 in) tracks, most commonly in restricted environments such as underground mine railways, parks and farms.

During World War II, it was proposed to expedite the Yunnan–Burma Railway using 400 mm (15 3⁄4 in) gauge, since such a small gauge can have the tightest of curves in difficult terrain.[2]

Distinction between a ridable miniature railway and a minimum gauge railway

The major distinction between a miniature railway (USA: 'riding railroad' or 'grand scale railroad') and a minimum gauge railway is that miniature lines use models of full-sized prototypes. There are miniature railways that run on gauges as wide as 2 ft (610 mm), for example the Wicksteed Park Railway. There are also ridable miniature railways running on extremely narrow track as small as 10 1⁄4 in (260 mm) gauge, for example the Rudyard Lake Steam Railway. Around the world there are also several ridable miniature railways open to public using even more narrower gauges, such as 7 1⁄4 in (184 mm) and 7 1⁄2 in (190.5 mm).

Generally minimum gauge railways have a working function as estate railways, or industrial railways, or providers of public transport links; although most also have a distinct function in relation to tourism as well, and depend upon tourism for the revenue to support their working function.

Installations

Railway Gauge
Anacortes Railway 457 mm (18 in)
Bicton Woodland Railway 457 mm (18 in)
See Fifteen-inch gauge railway 381 mm (15 in)
Geriatriezentrum Am Wienerwald Feldbahn 500 mm (19 3⁄4 in)
Jardin d'Acclimatation railway 500 mm (19 3⁄4 in)
Meadows and Lake Kathleen Railroad 457 mm (18 in)
Petit train d'Artouste 500 mm (19 3⁄4 in)
Royal Arsenal Railway 457 mm (18 in)
Sand Hutton Light Railway 457 mm (18 in)
Southern Fuegian Railway 500 mm (19 3⁄4 in)
Steeple Grange Light Railway 457 mm (18 in)
Tarn Light Railway 500 mm (19 3⁄4 in)[3]

See also

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References

  1. ↑ 1.0 1.1 1.2 Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  3. ↑ fr:Chemin de fer touristique du Tarn

Bibliography

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