500 Mm Gauge Railway
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500 Mm Gauge Railway

Minimum-gauge railways have a gauge of most commonly ,[1] , , , or . The notion of minimum-gauge railways was originally developed by estate railways[1] and the French company of Decauville for industrial railways, mining, and farming applications.[2]


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 gauge, distinguishing it from a "Narrow Gauge" railway. Having previously built a small railway of gauge, he settled on as the minimum that he felt was practical.[1]

In general, minimum-gauge railways maximize their loading gauge, where 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. Minimum-gauge railways allowed for ease of mobility on battlefields, mines, and other restricted environments.

A number of 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 and tracks, most commonly in restricted environments such as underground mine railways, parks and farms.[2]

During World War II, it was proposed to expedite the Yunnan-Burma Railway using gauge, since such a small gauge can have the tightest of curves in difficult terrain.[3]

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 , for example the Wicksteed Park Railway. There are also rideable miniature railways running on extremely narrow tracks as small as gauge, for example the Rudyard Lake Steam Railway. Around the world there are also several rideable miniature railways open to the public using even narrower gauges, such as and .

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


See also


  1. ^ a b c Heywood, A.P. (1974) [1881, Derby: Bemrose]. Minimum Gauge Railways. Turntable Enterprises. ISBN 0-902844-26-1.
  2. ^ a b Douglas J. Puffert (2009). Tracks across continents, paths through history: the economic dynamics of standardization in railway gauge. Chicago: The University of Chicago Press. p. 186. ISBN 978-0-226-68509-0..
  3. ^ "TOY RAILWAY". The Northern Standard. Darwin, NT: National Library of Australia. 8 December 1939. p. 15. Retrieved 2011.
  4. ^ [Meadows_and_Lake_Kathleen_Railroad https://dccwiki.com/Meadows_and_Lake_Kathleen_Railroad Meadows and Lake Kathleen Railroad]
  5. ^ [1]
  6. ^ [2]
  7. ^ fr:Chemin de fer touristique du Tarn and Antique ferrier of Tannerre-en-Puisaye[better source needed]


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.



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