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{{Distinguish|Light rail}}
{{For|the magazine|Light Railways}}
{{More citations needed|date=October 2015}}

A '''light railway''' is a [[Rail transport|railway]] built at lower costs and to lower standards than typical "heavy rail": it uses lighter-weight track, and may have more [[Grade (slope)|steep gradients]] and [[Minimum railway curve radius|tight curves]] to reduce [[civil engineering]] costs. These lighter standards allow lower costs of operation, at the price of lower vehicle capacity.

== Narrow gauge ==
[[File:DRG 99 332 in Bad Kühlungsborn West.jpg|thumb|Restored [[Molli railway]] at [[Kühlungsborn]], [[Mecklenburg]], Germany ({{Track gauge|900mm|disp=/|lk=on}})]]

The precise meaning of the term "light railway" varies by geography and context.

In countries where a single [[standard gauge]] is dominant, the term light railway does not imply a [[narrow gauge]] railway. Most narrow gauge railways operate as light railways, but not all light railways need be narrow gauge.{{efn-lr|This does not apply to places such as southern Africa, where a system of extremely large {{Track gauge|3ft6in}} mainline railways developed.}} After [[Charles Easton Spooner|Spooner]]'s development of steam haulage for narrow gauge railways, the prevailing view was that the gauge should be tailored according to the traffic: "The nearer the machine is apportioned to the work it has to do the cheaper will that work be done."{{sfnp|MacKay|1896|page=21}}

From the 1890s, it was recognised that cost savings could also be made in the construction and operation of a standard gauge railway: "light axle-loads and low speeds, not gauge, are the first condition of cheap construction and economical working. Gauge is quite a secondary factor."<ref name="Cole, vii" /> [[Break of gauge]] now became an important factor, and there was much concern over whether this would become an additional cost for the [[transshipment]] of goods,<ref name="Puffert, 87" /> or whether this was over-emphasised compared to the amount of warehousing and handling needed anyway.{{sfnp|Burton|Scott-Morgan|1985| page=16 }} The [[rail transport in Ireland|Irish railway system]] in particular became a good example of a broad gauge main line system with [[List of narrow-gauge railways in Ireland|many independent narrow gauge]], {{Track gauge|3ft}}, light railway feeder [[branch line]]s.

==United States==
{{See also|Light rail in the United States}}

In the [[United States]], "light railway" generally refers to an [[Urban area|urban]] or [[interurban]] rail system, which historically would correspond to a [[streetcar]] network. The distinct term ''[[light rail]]'' was introduced in the 1970s to describe a form of urban rail public transportation that has a lower capacity and lower speed than a heavy rail or metro system, but which generally operates in exclusive [[right-of-way (transportation)|rights-of-way]], in contrast with streetcar systems which operate in shared road traffic with automobiles. [[Urban sprawl]] combined with [[Oil price increases since 2003|higher fuel prices]] has caused an increase in popularity of these light rail systems in recent decades.

==United Kingdom==
In the [[United Kingdom]] "light railway" refers in its strictest sense to a railway built or operated under the [[Light Railways Act 1896]] ([[59 & 60 Vict.]] c. 48).<ref name="BLR, 15" /> That act, though, gives only a vague description; a better one is found from John Charles MacKay in the same year:<ref name="BLR, 15" /><ref name="MacKay" /> "A light railway is one constructed with lighter rails and structures, running at a slower speed, with poorer accommodation for passengers and less facility for freight. It can be worked with less stringent standards of signalling and safety practice. It is a cheap railway and a second class of railway."<ref name="BLR, 15" /> These terms are not pejorative, they simply recognise that the standards of main-line heavy railways are not needed in all situations. Their great advantage under UK law was that they avoided the need for an expensive [[act of Parliament]] before each new line; they only required a much simpler [[light railway order]] within the terms of the act.<ref name="BLR, 15" />

The term is also used more generally{{dubious|date=July 2015}} of any lightly built railway with limited traffic, often controlled locally and running unusual or older [[rolling stock]]. A light railway is properly distinct from a [[tram]]way which operates under differing rules and may share a road. The term "light railway" is generally used in a positive manner.

Perhaps the most well-known caricature of a light railway is the film ''[[The Titfield Thunderbolt]]'', made in 1953 as many of the light railways and other small branch lines were being closed. Despite the great public affection for these railways, very few were financially successful. Colonel [[H.F. Stephens]] was pivotal in the light railway world, and tried many techniques to make light railways pay, introducing some of the earliest [[railcar]]s and also experimenting with a rail lorry built out of an old [[Model T Ford]]. Nevertheless, most light railways never made much money, and by the 1930s they were being driven out of business by the motor car. Although [[World War II]] resulted in a brief increase in the importance of these railways, very few lasted beyond the early 1950s. Those that survive today are generally [[heritage railways]].

==Australia==
[[Queensland]] adopted a [[narrow gauge]] of {{Track gauge|1067mm|lk=on}} in order to make construction of lines lighter and thus cheaper, though this initiated a [[break-of-gauge]] with other states. The cost savings were due to light rails, low axleloads and low speeds as much as due to the gauge.

[[Tasmania]], [[Western Australia]] and [[South Australia]] followed suit with the narrow gauge to reduce costs, though South Australia ended up with an inefficient two-gauge system which negated some of the supposed cost savings of the narrow gauge. [[New South Wales]] resisted calls to introduce narrow gauge, but did adopt [[pioneer lines]] with {{cvt|30|kg/m|lbs/yd|1}} rails to reduce costs without the need for breaks-of-gauge.

There were a significant number of small and isolated mining and timber railway built to a variety of gauges and improvised standards.

There are still a large number of sugar cane tramways built to a common {{Track gauge|610mm|lk=on}} gauge, and sharing research and development into advanced features such as concrete sleepers, tamping machines, remotely controlled brake vans, and the like. There is little through traffic with mainline railways so that break-of-gauge is not a problem.

The [[Iron Knob Railway]] was legally a "tramway", but operated 2,000-ton [[iron ore]] trams which were heavier than most railways.

==Japan==
Also in [[Japan]], originally, "light railway" refers to a railway built or operated under the Light Railways Act enforced in 1909. The act in Japan also though gives only a vague description; the purpose of the act is for building railways easily with less stringent standards and at low cost.

The light railway concept in Japan is therefore similar to the UK and other countries. Many light railways were built for passengers or as [[military railway|military]], [[industrial railway|industrial]] or [[forest railway|forest]] railways in Japan, and in Japan's colonies in [[Taiwan]], [[Korea]], [[Manchuria]], [[Sakhalin]] and [[Micronesia]]. Some light railways were destroyed during [[World War II]], especially in [[Okinawa Prefecture|Okinawa]]. By the 1970s, most light railways in Japan had been driven out of business by the motor car. Some of the remaining lines survive in passenger service, and others have been restored as [[heritage railways]].

==Taiwan==
[[Taiwanese push car railways]] used [[Handcar|handcars]] on [[2 ft 6 in gauge railways|762mm gauge]] rails to transport [[sugarcane]]s of the [[Taiwan Sugar Corporation]] to the mainline railways of the [[Taiwan Railway Administration]] or the processing plants of the Taiwan Sugar Cooperation for further production to turn the sugarcane to fine sugar.

==Industrial railways==
{{Main|industrial railway}}

Many industrial railways were built to light railway standards.  These may be of light and small construction, although the wagons carrying molten-steel in a steelworks can be several hundred [[tonne]]s in weight.

===Panama===
{{See also|Panama Canal Railway#Gauge}}
The [[Panama Canal]] construction used a heavy network of {{Track gauge|5ft|lk=on}} temporary railways in its construction to move vast quantities of soil from the excavations to the dams that were constructed.

==Military railways==
{{Main|Military railways}}

Light railways have been used in several wars, especially before the advent of the combustion engine and motor car.  These have often connect depots some distance behind the [[front line]] with the front lines themselves.  Some armies have Divisions of Engineers trained to operate trains.  Sometimes they operate a branch line of their own so that they can practise track and bridge building (and demolition) without disturbing trains on the main line.  
 
* [[Trench railways]]
* [[Feldbahn]] 
* [[Heeresfeldbahn]] - German and Austrian military railways
* [[War Department Light Railways]]
* [[Longmoor Military Railway]] - built by the Royal Engineers in order to train on railway operations on it. It closed in 1969.
* [[Central Asian Military railway]]

==See also==
* [[Forest railway]]
* [[Minimum-gauge railway]]
* [[Tramway from Verneuil-l'Étang to Melun]]

== Notes ==
{{Notelist-lr}}

== References ==
{{Reflist|refs=

<ref name="Cole, vii" >{{Cite book
  |title=Light Railways at Home and Abroad
  |first=William Henry |last=Cole
  |date=1899
  |publisher=C. Griffin
  |page=
}}</ref>

<ref name="Puffert, 87" >{{Cite book
  |title=Tracks Across Continents, Paths Through History
  |first=Douglas J. |last=Puffert
  |date=2009
  |publisher=University of Chicago Press
  |isbn=978-0226685090
  |page=87
  |url=https://books.google.com/books?id=FzAqtQ2mPJQC&pg=PA87  
}}</ref>

<ref name="BLR, 15" >{{Cite book
  |title=Britain's Light Railways
  |first1=Anthony |last1=Burton
  |first2=John |last2=Scott-Morgan
  |date=1985
  |publisher=Moorland Publishing |location=Ashbourne
  |isbn=0-86190-146-0
  |page=15
}}</ref>

<ref name="MacKay" >{{Cite book
  |title=Light Railways
  |first=John Charles |last=MacKay
  |date=1896
  |edition=1st
  |publisher=C. Lockwood and Son
  |url=https://archive.org/details/cu31924062544832
  }}</ref>

}}

[[Category:Light railways| ]]