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{{Short description|Form of cable railway}}
[[de:Standseilbahn]]
{{For|the mathematical and architectural curve|Funicular curve}}
{{Use dmy dates|date=October 2016}}
[[File:Baku Funicular.jpg|thumb|upright|Funicular in [[Baku]], Azerbaijan]]


A '''funicular''' ({{IPAc-en|f|juː|ˈ|n|ɪ|k|j|ʊ|l|ər|,_|f|(|j|)|ʊ|-|,_|f|(|j|)|ə|-}} {{respell|few|NIK|yoo|lər|,_|f(y)uu|-|,_|f(j)ə|-}})<ref>{{cite OED |funicular |access-date=2020-05-30}}</ref> is a type of [[cable railway]] system that connects points along a railway track laid on a steep [[grade (slope)|slope]]. The system is characterized by two counterbalanced carriages (also called cars or trains) permanently attached to opposite ends of a haulage cable, which is looped over a [[pulley]] at the upper end of the track.<ref name="Giessbach">{{cite book |url=http://www.asme.org/wwwasmeorg/media/ResourceFiles/AboutASME/Who%20We%20Are/Engineering%20History/Landmarks/259-Bro-Standseilbahn.pdf |title=The Giessbach Funicular with the World's First Abt Switch |date=2015 |publisher=The [[American Society of Mechanical Engineers]]}}</ref><ref name="TCQSM">{{Cite book |url=https://www.nap.edu/read/24766/chapter/1 |title=Transit Capacity and Quality of Service Manual. Transit Cooperative Highway Research Program (TCRP) Report 165 |date=2013 |publisher=Transportation Research Board |isbn=978-0-309-28344-1 |edition=Third |location=Washington |pages=11–20 |chapter=Chapter 11: Glossary and Symbols |doi=10.17226/24766 |author=Kittelson & Assoc |author2=Parsons Brinckerhoff |author3=KFH Group |author4=Texas A&M Transportation Institute |author5=Arup}}</ref> The result of such a configuration is that the two carriages move synchronously: as one ascends, the other descends at an equal speed. This feature distinguishes funiculars from [[inclined elevator]]s, which have a single car that is hauled uphill.<ref name="Giessbach" /><ref name="TCQSM" /><ref name="Pyrgidis">{{cite book |url={{google books|plainurl=y|id=e5ymCwAAQBAJ}} |title=Railway Transportation Systems: Design, Construction and Operation |last=Pyrgidis |first=Christos N. |date=2016 |publisher=CRC Press |isbn=978-1-4822-6215-5 |pages=251–260 |chapter=Cable railway systems for steep gradients}}</ref>
A '''funicular''' or '''funicular [[railway]]''', also called '''inclined railway''' or '''inclined plane''', consists of a system of [[transportation]] in which [[cable]]s attach to a [[tram]]-like vehicle on [[rail]]s to move it up and down a very steep [[slope]]. The [[vehicle]] is specially [[design]]ed for the particular inclination, so that seats and/or floors remain roughly horizontal. Typically the steepness of the [[track]] does not vary very much, which differentiates the funicular from a [[cable car on rails]].


The term ''funicular'' derives from the [[Latin]] word {{wikt-lang|la|funiculus}}, the diminutive of {{wikt-lang|la|funis}}, meaning 'rope'.<ref>{{cite web |url=https://en.oxforddictionaries.com/definition/funicular |archive-url=https://web.archive.org/web/20180703103957/https://en.oxforddictionaries.com/definition/funicular |archive-date=3 July 2018 |title=funicular |publisher=Oxford Dictionaries |access-date=3 July 2018 |url-status=dead }}</ref>
It is thus a [[hybrid]] between cable transport and rail transport. Two [[car]]s at the end of a cable go alternately up and down on either two tracks or one track which splits and rejoins in the middle.


==Operation==
The word "funicular" derives from the Latin ''funiculus'' (thin rope), a diminutive of ''funis'' (rope).
In a funicular, both cars are permanently connected to the opposite ends of the same cable, known as a ''haul rope''; this haul rope runs through a system of [[pulley]]s at the upper end of the line. If the railway track is not perfectly straight, the cable is guided along the track using [[sheave]]s – unpowered pulleys that simply allow the cable to change direction. While one car is pulled upwards by one end of the haul rope, the other car descends the slope at the other end. Since the weight of the two cars is counterbalanced (except for the weight of passengers), no lifting force is required to move them; the engine only has to lift the cable itself and the excess passengers, and supply the energy lost to [[friction]] by the cars' wheels and the pulleys.<ref name=Giessbach/><ref name="Hofmann" />


For passenger comfort, funicular carriages are often (although not always) constructed so that the floor of the passenger deck is horizontal, and not necessarily parallel to the sloped track.
Funiculars often occur in [[mountain]]s. Many cities have short funiculars on [[hill]]s or [[cliff]]s, such as the [[Montmartre]] funicular in [[Paris]], or those in the [[England|English]] seaside [[resort]] of [[Scarborough]].


[[File:Cable lest.jpg|thumb|Bottom towrope]]
The world's steepest passenger railway is the [[Incline Railway (Chattanooga)|Incline Railway]], a funicular up the side of [[Lookout Mountain (Chattanooga)|Lookout Mountain]] in [[Chattanooga]], [[Tennessee]], [[USA]], with maximum grade of 72.7% (36° from [[horizontal]], 90° being [[vertical]]). [http://www.carta-bus.org/CARTA%20Web%20Site/Incline/Incline%20Home%20Page.html] [http://www.carta-bus.org/CARTA%20Web%20Site/Incline/Incline%20History.html]


In some installations, the cars are also attached to a second cable – ''bottom towrope'' – which runs through a pulley at the bottom of the incline. In these designs, one of the pulleys must be designed as a tensioning wheel to avoid slack in the ropes. One advantage of such an installation is the fact that the weight of the rope is balanced between the carriages; therefore, the engine no longer needs to use any power to lift the cable itself. This practice is used on funiculars with slopes below 6%, funiculars using sledges instead of carriages, or any other case where it is not ensured that the descending car is always able to pull out the cable from the pulley in the station on the top of the incline.<ref name="hefti">Walter Hefti: ''Schienenseilbahnen in aller Welt. Schiefe Seilebenen, Standseilbahnen, Kabelbahnen.'' Birkhäuser, Basel 1975, {{ISBN|3-7643-0726-9}} (German)</ref> It is also used in systems where the engine room is located at the lower end of the track (such as the upper half of the [[Great Orme Tramway]]) – in such systems, the cable that runs through the top of the incline is still necessary to prevent the carriages from coasting down the incline.<ref name="orme">[http://www.greatormetramway.co.uk/en/how-it-works How it works] – Great Orme Tramway</ref>
Funiculars are also called [[tram]]s or [[cable car]]s in many places.


===Types of power systems===
<div style=float:right;margin:5px;>[[image:luz-fun.jpg]]<small>
====Cable drive====
<br>'''''Gütschbahn in Lucerne''' from Führer für Luzern,<br>Vierwaldstättersee und Umgebung, [[Lucerne]], [[1893]].''</small></div>
[[File:FunicularDriveTrain.jpg|thumb|left|Funicular drive train]]
[[File:Muzeum MHD, dvoukolí vozu petřínské lanovky 1891.jpg|thumb|[[Petřín funicular]] [[Wheelset (rail transport)|wheelset]] with [[Rack railway#Abt (1882)|Abt]] rack and pinion brake]]


In most modern funiculars, neither of the two carriages is equipped with an engine of its own. Instead, the propulsion is provided by an [[electric motor]] in the engine room (typically at the upper end of the track); the motor is linked via a speed-reducing gearbox to a large pulley – a ''drive [[bullwheel]]'' – which then controls the movement of the haul rope using friction. Some early funiculars were powered in the same way, but using [[steam engine]]s or other types of motor. The bullwheel has two grooves: after the first half turn around it the cable returns via an auxiliary pulley. This arrangement has the advantage of having twice the contact area between the cable and the groove, and returning the downward-moving cable in the same plane as the upward-moving one. Modern installations also use high friction liners to enhance the friction between the bullwheel grooves and the cable.<ref name="Hofmann" /><ref name=Stoos /><ref name=Neumann >{{Cite journal |last=Neumann |first=Edward S. |title=Cable-Propelled People Movers in Urban Environments |url=http://onlinepubs.trb.org/Onlinepubs/trr/1992/1349/1349-017.pdf |journal=Transportation Research Record |volume=1349 |pages=125–132}}</ref>
=== Funiculars of the world: ===
* [[Angels Flight]], [[Los Angeles]], [[California]], [[United States]] "The shortest railway in the world"
* [[Bergen, Norway]]
* [[Incline Railway (Chattanooga)|Incline Railway]] on [[Lookout Mountain]] in [[Chattanooga]], [[Tennessee]], [[USA]]
* [[Duquesne Incline]] and [[Monongahela Incline]], [[Pittsburgh]], [[Pennsylvania]], [[United States]]
* [[Graz]], [[Austria]]
* [[Gütschbahn]], [[Lucerne]], [[Switzerland]]
* [[Hastings]], [[England]]
* [[Hong Kong]] [[Victoria Peak]]
* [[Harderbahn]], [[Interlaken]], [[Switzerland]]
* [[Istanbul]], [[Turkey]] (underground)
* [[Likabitos]], [[Athens]]
* [[Lynmouth]], [[Devon]], [[UK]]
* [[Montjuïc]], [[Barcelona]]
* [[Montserrat (mountain)]], [[Catalonia]]
* [[Montmartre]], [[Paris]], [[France]]
* [[Mendelbahn]], [[South Tyrol]], [[Italy]], build in [[1903]]
* [[Naples]], [[Italy]]
* [[Nazaré, Portugal]]
* [[Penang]], [[Malaysia]]
* [[Quebec City]]
* [[Tibidabo]], [[Barcelona]]
* [[Vallvidrera]], [[Barcelona]]
* [[Wellington, New Zealand]] (Kelburn Cable Car)
* [[Wiesbaden]], [[Germany]] (using water as weight to move the cars)
* [[Zagreb]], [[Croatia]]


For emergency and service purposes two sets of brakes are used at the engine room: the emergency brake directly grips the bullwheel, and the service brake is mounted at the high speed shaft of the gear. In case of an emergency the cars are also equipped with spring-applied, hydraulically opened rail brakes.<ref name=Neumann />
==External Links==
* [http://www.funimag.com ''Funimag'', the first web magazine about funiculars]
* [http://www.p.lodz.pl/I35/personal/jw37/urbtr/funicul-eng.html Urban Mountain Railways and People Movers]
* [http://tramandmetro.info/bttl-1.html Fløibanen funicular in Bergen]


The first funicular caliper brakes which clamp each side of the crown of the rail were invented by the Swiss entrepreneurs [[Franz Josef Bucher]] and Josef Durrer and implemented at the {{ill|Stanserhorn funicular|de|Stanserhorn-Bahn}}, opened in 1893.<ref>{{cite book |last1=Berger |first1=Christoph |title=Das kleine Buch vom Stanserhorn |date=2005 |publisher=Christoph Berger, Stans |location=Erstausgabe |isbn=3-907164-12-1}}</ref><ref>{{cite book |last1=Cuonz |first1=Romano |title=Franz Josef Bucher und Josef Durrer – Hotelkönig / Bergbahnpionier |date=2015 |publisher=Brunner Medien AG |isbn=978-3-03727-063-9}}</ref> The Abt [[Rack and pinion railway#Abt (1882)|rack and pinion system]] was also used on some funiculars for speed control or emergency braking.<ref name=Giessbach /><ref name="Hofmann">{{Cite journal |last=Hofmann |first=Gottfried |date=2007-01-03 |title=Advanced funicular technology |url=https://repository.mines.edu/handle/11124/70549 |journal=International Organization for the Study of Transportation |location=San Francisco, Calif. |publisher=International Organization for the Study of Transportation by Rope; Internationaler Seilbahnkongress}}</ref>
==See Also==
{{clear left}}
*[[Kaprun disaster]]
*[[Public transport]]


====Water counterbalancing====
*[[Skiing|Skiing and Skiing Topics]]
{{main|Waterbalast railway}}
[[File:Fribourg funicular.jpg|thumb|upright|The wastewater-powered Fribourg funicular featuring an Abt switch]]
{{For|a list of water-powered funiculars|Category:Water-powered funicular railways}}

Many early funiculars were built using water tanks under the floor of each car, which were filled or emptied until just sufficient imbalance was achieved to allow movement, and a few such funiculars still exist and operate in the same way. The car at the top of the hill is loaded with water until it is heavier than the car at the bottom, causing it to descend the hill and pull up the other car. The water is drained at the bottom, and the process repeats with the cars exchanging roles. The movement is controlled by a [[brakeman]] using the brake handle of the rack and pinion system engaged with the rack mounted between the rails.<ref name="Giessbach" /><ref name="Hofmann" />

The [[Bom Jesus funicular]] built in 1882 near [[Braga]], [[Portugal]] is one of the extant systems of this type. Another example, the [[Fribourg funicular]] in [[Fribourg]], Switzerland built in 1899,<ref>{{Cite web |url=http://www.tpf.ch/funiculaire |title=Funiculaire Neuveville – St-Pierre |publisher=Transports publics fribourgeois Holding (TPF) SA}}</ref> is of particular interest as it utilizes waste water, coming from a sewage plant at the upper part of the city.<ref name="The Atlantic">{{cite news|last=Kirk|first=Mimi|title=A Lasting Stink: Fribourg's Sewage-Powered Funicular|url=http://www.citylab.com/commute/2016/06/a-lasting-stink-fribourgs-sewage-powered-funicular/487346/|access-date=19 June 2016|work=[[The Atlantic]]|date=16 June 2016 }}</ref>

Some funiculars of this type were later converted to electrical power. For example, the [[Giessbachbahn]] in the Swiss [[canton of Bern]], opened in 1879, was originally powered by water ballast. In 1912 its energy provision was replaced by a hydraulic engine powered by a [[Pelton turbine]]. In 1948 this in turn was replaced by an electric motor.<ref name="Giessbach" />
{{clear left}}

===Track layout===
[[File:funicular_layouts.svg|thumb|link={{filepath:funicular_layouts.svg}}|Track layouts used in funiculars &ndash; in [{{filepath:funicular_layouts.svg}} the SVG file,] click to move the cars]]
{{Multiple image|align=right|total_width=390|image1=Cliff Railway Hastings (4906029502) (cropped).jpg|caption1=[[East Hill Cliff Railway]] in [[Hastings]], [[United Kingdom|UK]] – a four-rail funicular|image2=Angels Flight after reopening in September 2017.jpg|caption2=[[Angels Flight]] in [[Los Angeles, California]] – a three-rail funicular|image3=Nazare Funicular - panoramio (3).jpg|caption3=[[Nazaré Funicular]] in [[Nazaré, Portugal|Nazaré]], Portugal – a two-rail funicular}}

There are three main rail layouts used on funiculars; depending on the system, the track bed can consist of four, three, or two rails.

* Early funiculars were built to the four-rail layout, with two separate parallel tracks and separate station platforms at both ends for each vehicle. The two tracks are laid with sufficient space between them for the two carriages to pass at the midpoint. While this layout requires the most land area, it is also the only layout that allows both tracks to be perfectly straight, requiring no sheaves on the tracks to keep the cable in place. Examples of four-rail funiculars are the [[Duquesne Incline]] in [[Pittsburgh, Pennsylvania]], and most cliff railways in the United Kingdom.
* In three-rail layouts, the middle rail is shared by both carriages, while each car runs on a different outer rail. To allow the two cars to pass at the halfway point, the middle rail must briefly split into two, forming a [[passing loop]]. Such systems are narrower and require less rail to construct than four-rail systems; however, they still require separate station platforms for each vehicle.<ref name="Giessbach" />
* In a two-rail layout, both cars share the entire track except at the [[passing loop]] in the middle. This layout is the narrowest of all and needs only a single platform at each station (though sometimes two platforms are built: one for boarding, one for alighting). However, the required passing loop is more complex and costly to build, since special turnout systems must be in place to ensure that each car always enters the correct track at the loop. Furthermore, if a rack for braking is used, that rack can be mounted higher in three-rail and four-rail layouts, making it less sensitive to choking in snowy conditions compared to the two-rail layout.<ref name="hefti" />

Some funicular systems use a mix of different track layouts. An example of this arrangement is the lower half of the [[Great Orme Tramway]], where the section "above" the [[passing loop]] has a three-rail layout (with each pair of adjacent rails having its own conduit which the cable runs through), while the section "below" the passing loop has a two-rail layout (with a single conduit shared by both cars). Another example is the [[Peak Tram]] in [[Hong Kong]], which is mostly of a two-rail layout except for a short three-rail section immediately uphill of the passing loop.

Some four-rail funiculars have their tracks [[Gauntlet track|interlaced]] above and below the passing loop; this allows the system to be nearly as narrow as a two-rail system, with a single platform at each station, while also eliminating the need for the costly junctions either side of the passing loop. The Hill Train at the [[Legoland, Windsor|Legoland Windsor Resort]] is an example of this configuration.

====Turnout systems for two-rail funiculars====

In the case of two-rail funiculars, various solutions exist for ensuring that a carriage always enters the same track at the passing loop.

One such solution involves installing [[Railroad switch|switches]] at each end of the passing loop. These switches are moved into their desired position by the carriage's [[Wheelset (rail transport)|wheels]] during trailing movements (i.e. away from the passing loop); this procedure also sets the route for the next trip in the opposite direction. The [[Great Orme Tramway]] is an example of a funicular that utilizes this system.

{{CSS image crop|Image = 2-rail Funicular Railway 01.svg|bSize = 230|cWidth = 220|cHeight = 200|oTop = 95|oLeft = 5|Location = left|Description = [[Abt switch]]}}

{{anchor|Abt switch}}
Another turnout system, known as the Abt switch, involves no moving parts on the track at all. Instead, the carriages are built with an unconventional [[Wheelset (rail transport)|wheelset]] design: the outboard wheels have [[flange]]s on both sides, whereas the inboard wheels are unflanged (and usually wider to allow them to roll over the turnouts more easily). The double-flanged wheels keep the carriages bound to one specific rail at all times. One car has the flanged wheels on the left-hand side, so it follows the leftmost rail, forcing it to run via the left branch of the passing loop; similarly, the other car has them on the right-hand side, meaning it follows the rightmost rail and runs on the right branch of the loop. This system was invented by [[Carl Roman Abt]] and first implemented on the [[Lugano Città–Stazione funicular]] in Switzerland in 1886;<ref name="Giessbach" /> since then, the Abt turnout has gained popularity, becoming a standard for modern funiculars.<ref name="Stoos">{{cite web |title=Ceremonial Inauguration of the New Stoos Funicular |url=https://newsroom.doppelmayr.com/download/file/5051/ |publisher=Garaventa |date=December 18, 2017 }}</ref> The lack of moving parts on the track makes this system cost-effective and reliable compared to other systems.
{{clear}}
<gallery mode="packed" heights="150px">
File:Six and Seven , Great Orme tramway , Llandudno.jpg|The two cars on the upper half of the [[Great Orme Tramway]] passing each other at a switch-controlled passing loop
File:Heidelberg funicular wheelset.jpg|Wheelset of a two-rail funicular with the Abt switch turnout system
</gallery>

===Stations===
[[File:Prager Standseilbahn zum Petřín 14.jpg|thumb|left|The two cars of the [[Petřín funicular]]—one of them is about to call at Nebozízek station (seen in the foreground), while the other will stop and wait for it to exchange passengers.]]

The majority of funiculars have two stations, one at each end of the track. However, some systems have been built with additional [[intermediate station]]s. Because of the nature of a funicular system, intermediate stations are usually built symmetrically about the mid-point; this allows both cars to call simultaneously at a station. Examples of funiculars with more than two stations include the [[Wellington Cable Car]] in [[New Zealand]] (five stations, including one at the [[passing loop]])<ref>[https://www.wellingtoncablecar.co.nz/ Wellington Cable Car]</ref> and the [[Carmelit]] in [[Haifa]], Israel (six stations, three on each side of the passing loop).<ref name="carmelit">{{cite web |url=http://www.carmelithaifa.com/carmelit-haifa/carmelit-haifa-about/ |title=Carmelit Haifa – The most convenient way to get around the city |publisher=Carmelit |access-date=2018-07-04}}</ref>

A few funiculars with asymmetrically placed stations also exist. For example, the [[Petřín funicular]] in [[Prague]] has three stations: one at each end, and a third (Nebozízek) a short way up from the passing loop.<ref>[https://www.prague.eu/en/object/places/1354/petrin-funicular-lanova-draha-na-petrin Petřín Funicular (Lanová dráha na Petřín)] – prague.eu</ref> Because of this arrangement, carriages are forced to make a technical stop a short distance down from the passing loop as well, for the sole purpose of allowing the other car to call at Nebozízek.
{{clear}}

==History==
[[File:Tünel Istanbul.jpg|thumb|Tünel in Istanbul, launched in 1875, Karaköy station as of 2006]]

A number of [[cable railway]] systems which pull their cars on inclined slopes were built since the 1820s.
In the second half of the 19th century the design of a funicular as a transit system emerged.
It was especially attractive in comparison with the other systems of the time as counterbalancing of the cars was deemed to be a cost-cutting solution.<ref name="Giessbach" />

The first line of the [[Funiculars of Lyon]] ({{lang|fr|Funiculaires de Lyon}}) opened in 1862, followed by other lines in 1878, 1891 and 1900. The [[Budapest Castle Hill Funicular]] was built in 1868–69, with the first test run on 23 October 1869.
The oldest funicular railway operating in Britain dates from 1875 and is in [[Scarborough, North Yorkshire|Scarborough]], North Yorkshire.<ref>{{cite news| url=http://news.bbc.co.uk/1/hi/england/north_yorkshire/8017535.stm |work=BBC News | title=Blunder traps eight on cliff lift | date=24 April 2009 | access-date=2 April 2010}}</ref>
In [[Istanbul]], Turkey, the [[Tünel]] has been in continuous operation since 1875 and is both the first underground funicular and the second-oldest underground railway.
It remained powered by a steam engine up until it was taken for renovation in 1968.<ref>{{cite web |url=http://tunel.iett.istanbul/tr/tunel/pages/tunel-kronolojisi/566 |title=Tünel Kronolojisi |trans-title=Tünel Chronology |publisher=İETT - Tunnel |language=tr |access-date=2017-12-07 |archive-date=8 November 2017 |archive-url=https://web.archive.org/web/20171108101717/http://tunel.iett.istanbul/tr/tunel/pages/tunel-kronolojisi/566 |url-status=dead }}</ref>

Until the end of the 1870s, the four-rail parallel-track funicular was the normal configuration. [[Carl Roman Abt]] developed the Abt Switch allowing the two-rail layout, which was used for the first time in 1879 when the [[Giessbach Funicular]] opened in [[Switzerland]].<ref name="hefti" />

In the United States, the first funicular to use a two-rail layout was the [[Telegraph Hill Railroad]] in San Francisco, which was in operation from 1884 until 1886.<ref>{{cite web|title=Telegraph Hill Railroad|url=http://www.cable-car-guy.com/html/ccsf.html#thrr|date=1 July 2009|work=The Cable Car Home Page – Cable Car Lines in San Francisco|publisher=Joe Thompson|access-date=20 September 2009|quote=The Telegraph Hill Railroad was not a cable car line ...; it was a funicular railway}}</ref> The [[Mount Lowe Railway]] in Altadena, California, was the first [[mountain railway]] in the United States to use the three-rail layout. Three- and two-rail layouts considerably reduced the space required for building a funicular, reducing grading costs on mountain slopes and property costs for urban funiculars. These layouts enabled a funicular boom in the latter half of the 19th century.

Currently, the United States' oldest and steepest funicular in continuous use is the [[Monongahela Incline]] located in [[Pittsburgh, Pennsylvania]]. Construction began in 1869 and officially opened 28 May 1870 for passenger use. The Monongahela incline also has the distinction of being the first funicular in the United States for strictly passenger use and not freight.<ref>{{cite web |url=https://inclinedplane.tripod.com/otherpaincl.htm |title=Duquesne Incline, Pittsburgh, Pennsylvania: Other Pennsylvania Inclines |website=inclinedplane.tripod.com/ }}</ref>

In 1880 the funicular of [[Mount Vesuvius]] inspired the Italian popular song ''[[Funiculì, Funiculà]]''. This funicular was destroyed repeatedly by volcanic eruptions and abandoned after the eruption of 1944.<ref>{{cite journal |last1=Smith |first1=Paul |title=Thomas Cook & Son's Vesuvius Railway |journal=Japan Railway & Transport Review |date=March 1998 |url=http://www.ejrcf.or.jp/jrtr/jrtr15/pdf/f10_smi.pdf}}</ref>

== Exceptional examples ==
{{See also|List of funicular railways}}

According to the ''[[Guinness World Records]]'', the smallest public funicular in the world is the [[Fisherman's Walk Cliff Railway]] in [[Bournemouth]], England, which is {{convert|39|m|0}} long.<ref>{{cite book |title=Guinness World Records |page=[https://archive.org/details/guinnessworldrec0000unse_f8z3/page/191 191] |isbn=978-1-908843-63-0 |url=https://archive.org/details/guinnessworldrec0000unse_f8z3/page/191 |last1=Records |first1=Guinness World |date=2014 |publisher=Guinness World Records }}</ref><ref>{{cite news |author=Lowbridge, Caroline |title=Ten Bournemouth facts football fans might not know |url=https://www.bbc.co.uk/news/uk-england-dorset-32497257 |work=BBC News |access-date=2016-01-04}}</ref>

[[Stoosbahn]] in Switzerland, with a maximum slope of 110% (47.7°), is the steepest funicular in the world.<ref name=groan>{{cite news |last=Willsher |first=Kim |date=2017-12-15 |title=World's steepest funicular rail line to open in Switzerland |url=https://www.theguardian.com/world/2017/dec/15/world-steepest-funicular-rail-line-open-switzerland |work=[[The Guardian]] |access-date=2017-12-16}}</ref>

The [[Lynton and Lynmouth Cliff Railway]], built in 1888, is the steepest and longest water-powered funicular in the world. It climbs {{convert|152|m|ft}} vertically on a 58% gradient.<ref>Smith, Claire. [https://www.geplus.co.uk/news/landslip-closes-lynton-and-lynmouth-cliff-railway/10029674.article "Landslip closes Lynton and Lynmouth Cliff Railway."] ''geplus.co.uk'', 31 August 2018.</ref>

The city of [[Valparaíso]] in Chile used to have up to [[Valparaíso funiculars|30 funicular elevators]] ({{langx|es|ascensores}}). The oldest of them dates from 1883. 15 remain with almost half in operation,{{when|date=February 2023}} and others in various stages of restoration.

The [[Carmelit]] in [[Haifa]], Israel, with six stations and a tunnel 1.8&nbsp;km (1.1&nbsp;mi) long, is claimed by the Guinness World Records as the "least extensive [[rapid transit|metro]]" in the world.<ref name="carmelit" /> Technically, it is an underground funicular.

The [[Dresden Suspension Railway]] ({{lang|de|Dresden Schwebebahn}}), which hangs from an elevated rail, is the only suspended funicular in the world.<ref>{{cite web|url=https://www.dvb.de/de-de/entdecken/bergbahnen/schwebebahn/|title=Schwebebahn |publisher=Dresdner Verkehrsbetriebe AG |language=de |access-date=2018-07-05}}</ref>

The [[Fribourg funicular]] is the only funicular in the world powered by wastewater.<ref name="The Atlantic"/>

[[Standseilbahn Linth-Limmern]], capable of moving 215 t, is said to have the highest capacity.<ref name="Seitz">{{Citation|title=Auf Bohren, Biegen und Brechen durch den Berg|last=Seitz|first=Peter|journal=Tec21|page=34-38|issue=19|date=2017|language=de}}</ref>

==Comparison with inclined elevators==
{{multiple image
| align = right
| total_width = 320
| image1 = Одесский фуникулёр (cropped).jpg
| caption1 = [[Odesa Funicular]] in [[Odesa]], Ukraine
| image2 = Kakola funicular arriving at Linnankatu cropped.jpg
| caption2 = [[Kakola Funicular]] in [[Turku]], Finland
| footer = Despite their names, neither system is a true funicular.
}}
{{main|Inclined elevator}}

Some [[inclined elevator]]s are incorrectly called funiculars. On an inclined elevator the cars operate independently rather than in interconnected pairs, and are [[Lift (force)|lift]]ed uphill.<ref name="TCQSM" />

A notable example is [[Paris]]' [[Montmartre Funicular]]. Its formal title is a relic of its original configuration, when its two cars operated as a counterbalanced, interconnected pair, always moving in opposite directions, thus meeting the definition of a funicular. However, the system has since been redesigned, and now uses two independently-operating cars that can each ascend or descend on demand, qualifying as a double inclined elevator; the term "funicular" in its title is retained as a historical reference.<ref name="Pyrgidis" /><ref name="MiniMetro">{{cite web |title=MiniMetro |url=https://www.leitner-ropeways.com/fileadmin/user_upload/pages/MiniMetro-en.pdf |publisher=LEITNER ropeways }}</ref><ref name="7Line">{{cite web |url=http://web.mta.info/mta/news/books/docs/7Line-Inclined-Elevators.pdf |title=7 Line Extension Inclined Elevators |date=April 28, 2014 |website=[[MTA Capital Construction]] |access-date=2018-06-20 }}</ref>

== See also ==
{{Portal|Trains}}
{{div col|colwidth=23em}}
* {{intitle|Cliff Railway}}
* [[Cable car (railway)]]
* [[Aerial lift]]
* [[Counterweight]]
* [[Gravity railroad]]
* [[Inclined elevator]]
* [[List of funicular railways]]
* [[Steep grade railway]]
* "[[Funiculì, Funiculà]]", a [[Neapolitan language|Neapolitan]] song celebrating funiculars
{{div col end}}

== References ==
{{Reflist}}

== External links ==
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{{Public transport}}
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[[Category:Funicular railways| ]]
[[Category:French inventions]]
[[Category:Rail technologies]]
[[Category:Railways by type]]
[[Category:Vertical transport devices]]

Latest revision as of 09:11, 25 October 2024

Funicular in Baku, Azerbaijan

A funicular (/fjuːˈnɪkjʊlər, f(j)ʊ-, f(j)ə-/ few-NIK-yoo-lər, f(y)uu-, f(j)ə-)[1] is a type of cable railway system that connects points along a railway track laid on a steep slope. The system is characterized by two counterbalanced carriages (also called cars or trains) permanently attached to opposite ends of a haulage cable, which is looped over a pulley at the upper end of the track.[2][3] The result of such a configuration is that the two carriages move synchronously: as one ascends, the other descends at an equal speed. This feature distinguishes funiculars from inclined elevators, which have a single car that is hauled uphill.[2][3][4]

The term funicular derives from the Latin word funiculus, the diminutive of funis, meaning 'rope'.[5]

Operation

[edit]

In a funicular, both cars are permanently connected to the opposite ends of the same cable, known as a haul rope; this haul rope runs through a system of pulleys at the upper end of the line. If the railway track is not perfectly straight, the cable is guided along the track using sheaves – unpowered pulleys that simply allow the cable to change direction. While one car is pulled upwards by one end of the haul rope, the other car descends the slope at the other end. Since the weight of the two cars is counterbalanced (except for the weight of passengers), no lifting force is required to move them; the engine only has to lift the cable itself and the excess passengers, and supply the energy lost to friction by the cars' wheels and the pulleys.[2][6]

For passenger comfort, funicular carriages are often (although not always) constructed so that the floor of the passenger deck is horizontal, and not necessarily parallel to the sloped track.

Bottom towrope

In some installations, the cars are also attached to a second cable – bottom towrope – which runs through a pulley at the bottom of the incline. In these designs, one of the pulleys must be designed as a tensioning wheel to avoid slack in the ropes. One advantage of such an installation is the fact that the weight of the rope is balanced between the carriages; therefore, the engine no longer needs to use any power to lift the cable itself. This practice is used on funiculars with slopes below 6%, funiculars using sledges instead of carriages, or any other case where it is not ensured that the descending car is always able to pull out the cable from the pulley in the station on the top of the incline.[7] It is also used in systems where the engine room is located at the lower end of the track (such as the upper half of the Great Orme Tramway) – in such systems, the cable that runs through the top of the incline is still necessary to prevent the carriages from coasting down the incline.[8]

Types of power systems

[edit]

Cable drive

[edit]
Funicular drive train
Petřín funicular wheelset with Abt rack and pinion brake

In most modern funiculars, neither of the two carriages is equipped with an engine of its own. Instead, the propulsion is provided by an electric motor in the engine room (typically at the upper end of the track); the motor is linked via a speed-reducing gearbox to a large pulley – a drive bullwheel – which then controls the movement of the haul rope using friction. Some early funiculars were powered in the same way, but using steam engines or other types of motor. The bullwheel has two grooves: after the first half turn around it the cable returns via an auxiliary pulley. This arrangement has the advantage of having twice the contact area between the cable and the groove, and returning the downward-moving cable in the same plane as the upward-moving one. Modern installations also use high friction liners to enhance the friction between the bullwheel grooves and the cable.[6][9][10]

For emergency and service purposes two sets of brakes are used at the engine room: the emergency brake directly grips the bullwheel, and the service brake is mounted at the high speed shaft of the gear. In case of an emergency the cars are also equipped with spring-applied, hydraulically opened rail brakes.[10]

The first funicular caliper brakes which clamp each side of the crown of the rail were invented by the Swiss entrepreneurs Franz Josef Bucher and Josef Durrer and implemented at the Stanserhorn funicular [de], opened in 1893.[11][12] The Abt rack and pinion system was also used on some funiculars for speed control or emergency braking.[2][6]

Water counterbalancing

[edit]
The wastewater-powered Fribourg funicular featuring an Abt switch

Many early funiculars were built using water tanks under the floor of each car, which were filled or emptied until just sufficient imbalance was achieved to allow movement, and a few such funiculars still exist and operate in the same way. The car at the top of the hill is loaded with water until it is heavier than the car at the bottom, causing it to descend the hill and pull up the other car. The water is drained at the bottom, and the process repeats with the cars exchanging roles. The movement is controlled by a brakeman using the brake handle of the rack and pinion system engaged with the rack mounted between the rails.[2][6]

The Bom Jesus funicular built in 1882 near Braga, Portugal is one of the extant systems of this type. Another example, the Fribourg funicular in Fribourg, Switzerland built in 1899,[13] is of particular interest as it utilizes waste water, coming from a sewage plant at the upper part of the city.[14]

Some funiculars of this type were later converted to electrical power. For example, the Giessbachbahn in the Swiss canton of Bern, opened in 1879, was originally powered by water ballast. In 1912 its energy provision was replaced by a hydraulic engine powered by a Pelton turbine. In 1948 this in turn was replaced by an electric motor.[2]

Track layout

[edit]
Track layouts used in funiculars – in the SVG file, click to move the cars
East Hill Cliff Railway in Hastings, UK – a four-rail funicular
Angels Flight in Los Angeles, California – a three-rail funicular
Nazaré Funicular in Nazaré, Portugal – a two-rail funicular

There are three main rail layouts used on funiculars; depending on the system, the track bed can consist of four, three, or two rails.

  • Early funiculars were built to the four-rail layout, with two separate parallel tracks and separate station platforms at both ends for each vehicle. The two tracks are laid with sufficient space between them for the two carriages to pass at the midpoint. While this layout requires the most land area, it is also the only layout that allows both tracks to be perfectly straight, requiring no sheaves on the tracks to keep the cable in place. Examples of four-rail funiculars are the Duquesne Incline in Pittsburgh, Pennsylvania, and most cliff railways in the United Kingdom.
  • In three-rail layouts, the middle rail is shared by both carriages, while each car runs on a different outer rail. To allow the two cars to pass at the halfway point, the middle rail must briefly split into two, forming a passing loop. Such systems are narrower and require less rail to construct than four-rail systems; however, they still require separate station platforms for each vehicle.[2]
  • In a two-rail layout, both cars share the entire track except at the passing loop in the middle. This layout is the narrowest of all and needs only a single platform at each station (though sometimes two platforms are built: one for boarding, one for alighting). However, the required passing loop is more complex and costly to build, since special turnout systems must be in place to ensure that each car always enters the correct track at the loop. Furthermore, if a rack for braking is used, that rack can be mounted higher in three-rail and four-rail layouts, making it less sensitive to choking in snowy conditions compared to the two-rail layout.[7]

Some funicular systems use a mix of different track layouts. An example of this arrangement is the lower half of the Great Orme Tramway, where the section "above" the passing loop has a three-rail layout (with each pair of adjacent rails having its own conduit which the cable runs through), while the section "below" the passing loop has a two-rail layout (with a single conduit shared by both cars). Another example is the Peak Tram in Hong Kong, which is mostly of a two-rail layout except for a short three-rail section immediately uphill of the passing loop.

Some four-rail funiculars have their tracks interlaced above and below the passing loop; this allows the system to be nearly as narrow as a two-rail system, with a single platform at each station, while also eliminating the need for the costly junctions either side of the passing loop. The Hill Train at the Legoland Windsor Resort is an example of this configuration.

Turnout systems for two-rail funiculars

[edit]

In the case of two-rail funiculars, various solutions exist for ensuring that a carriage always enters the same track at the passing loop.

One such solution involves installing switches at each end of the passing loop. These switches are moved into their desired position by the carriage's wheels during trailing movements (i.e. away from the passing loop); this procedure also sets the route for the next trip in the opposite direction. The Great Orme Tramway is an example of a funicular that utilizes this system.

Another turnout system, known as the Abt switch, involves no moving parts on the track at all. Instead, the carriages are built with an unconventional wheelset design: the outboard wheels have flanges on both sides, whereas the inboard wheels are unflanged (and usually wider to allow them to roll over the turnouts more easily). The double-flanged wheels keep the carriages bound to one specific rail at all times. One car has the flanged wheels on the left-hand side, so it follows the leftmost rail, forcing it to run via the left branch of the passing loop; similarly, the other car has them on the right-hand side, meaning it follows the rightmost rail and runs on the right branch of the loop. This system was invented by Carl Roman Abt and first implemented on the Lugano Città–Stazione funicular in Switzerland in 1886;[2] since then, the Abt turnout has gained popularity, becoming a standard for modern funiculars.[9] The lack of moving parts on the track makes this system cost-effective and reliable compared to other systems.

Stations

[edit]
The two cars of the Petřín funicular—one of them is about to call at Nebozízek station (seen in the foreground), while the other will stop and wait for it to exchange passengers.

The majority of funiculars have two stations, one at each end of the track. However, some systems have been built with additional intermediate stations. Because of the nature of a funicular system, intermediate stations are usually built symmetrically about the mid-point; this allows both cars to call simultaneously at a station. Examples of funiculars with more than two stations include the Wellington Cable Car in New Zealand (five stations, including one at the passing loop)[15] and the Carmelit in Haifa, Israel (six stations, three on each side of the passing loop).[16]

A few funiculars with asymmetrically placed stations also exist. For example, the Petřín funicular in Prague has three stations: one at each end, and a third (Nebozízek) a short way up from the passing loop.[17] Because of this arrangement, carriages are forced to make a technical stop a short distance down from the passing loop as well, for the sole purpose of allowing the other car to call at Nebozízek.

History

[edit]
Tünel in Istanbul, launched in 1875, Karaköy station as of 2006

A number of cable railway systems which pull their cars on inclined slopes were built since the 1820s. In the second half of the 19th century the design of a funicular as a transit system emerged. It was especially attractive in comparison with the other systems of the time as counterbalancing of the cars was deemed to be a cost-cutting solution.[2]

The first line of the Funiculars of Lyon (Funiculaires de Lyon) opened in 1862, followed by other lines in 1878, 1891 and 1900. The Budapest Castle Hill Funicular was built in 1868–69, with the first test run on 23 October 1869. The oldest funicular railway operating in Britain dates from 1875 and is in Scarborough, North Yorkshire.[18] In Istanbul, Turkey, the Tünel has been in continuous operation since 1875 and is both the first underground funicular and the second-oldest underground railway. It remained powered by a steam engine up until it was taken for renovation in 1968.[19]

Until the end of the 1870s, the four-rail parallel-track funicular was the normal configuration. Carl Roman Abt developed the Abt Switch allowing the two-rail layout, which was used for the first time in 1879 when the Giessbach Funicular opened in Switzerland.[7]

In the United States, the first funicular to use a two-rail layout was the Telegraph Hill Railroad in San Francisco, which was in operation from 1884 until 1886.[20] The Mount Lowe Railway in Altadena, California, was the first mountain railway in the United States to use the three-rail layout. Three- and two-rail layouts considerably reduced the space required for building a funicular, reducing grading costs on mountain slopes and property costs for urban funiculars. These layouts enabled a funicular boom in the latter half of the 19th century.

Currently, the United States' oldest and steepest funicular in continuous use is the Monongahela Incline located in Pittsburgh, Pennsylvania. Construction began in 1869 and officially opened 28 May 1870 for passenger use. The Monongahela incline also has the distinction of being the first funicular in the United States for strictly passenger use and not freight.[21]

In 1880 the funicular of Mount Vesuvius inspired the Italian popular song Funiculì, Funiculà. This funicular was destroyed repeatedly by volcanic eruptions and abandoned after the eruption of 1944.[22]

Exceptional examples

[edit]

According to the Guinness World Records, the smallest public funicular in the world is the Fisherman's Walk Cliff Railway in Bournemouth, England, which is 39 metres (128 ft) long.[23][24]

Stoosbahn in Switzerland, with a maximum slope of 110% (47.7°), is the steepest funicular in the world.[25]

The Lynton and Lynmouth Cliff Railway, built in 1888, is the steepest and longest water-powered funicular in the world. It climbs 152 metres (499 ft) vertically on a 58% gradient.[26]

The city of Valparaíso in Chile used to have up to 30 funicular elevators (Spanish: ascensores). The oldest of them dates from 1883. 15 remain with almost half in operation,[when?] and others in various stages of restoration.

The Carmelit in Haifa, Israel, with six stations and a tunnel 1.8 km (1.1 mi) long, is claimed by the Guinness World Records as the "least extensive metro" in the world.[16] Technically, it is an underground funicular.

The Dresden Suspension Railway (Dresden Schwebebahn), which hangs from an elevated rail, is the only suspended funicular in the world.[27]

The Fribourg funicular is the only funicular in the world powered by wastewater.[14]

Standseilbahn Linth-Limmern, capable of moving 215 t, is said to have the highest capacity.[28]

Comparison with inclined elevators

[edit]
Despite their names, neither system is a true funicular.

Some inclined elevators are incorrectly called funiculars. On an inclined elevator the cars operate independently rather than in interconnected pairs, and are lifted uphill.[3]

A notable example is Paris' Montmartre Funicular. Its formal title is a relic of its original configuration, when its two cars operated as a counterbalanced, interconnected pair, always moving in opposite directions, thus meeting the definition of a funicular. However, the system has since been redesigned, and now uses two independently-operating cars that can each ascend or descend on demand, qualifying as a double inclined elevator; the term "funicular" in its title is retained as a historical reference.[4][29][30]

See also

[edit]

References

[edit]
  1. ^ "funicular". Oxford English Dictionary (Online ed.). Oxford University Press. Retrieved 30 May 2020. (Subscription or participating institution membership required.)
  2. ^ a b c d e f g h i The Giessbach Funicular with the World's First Abt Switch (PDF). The American Society of Mechanical Engineers. 2015.
  3. ^ a b c Kittelson & Assoc; Parsons Brinckerhoff; KFH Group; Texas A&M Transportation Institute; Arup (2013). "Chapter 11: Glossary and Symbols". Transit Capacity and Quality of Service Manual. Transit Cooperative Highway Research Program (TCRP) Report 165 (Third ed.). Washington: Transportation Research Board. pp. 11–20. doi:10.17226/24766. ISBN 978-0-309-28344-1.
  4. ^ a b Pyrgidis, Christos N. (2016). "Cable railway systems for steep gradients". Railway Transportation Systems: Design, Construction and Operation. CRC Press. pp. 251–260. ISBN 978-1-4822-6215-5.
  5. ^ "funicular". Oxford Dictionaries. Archived from the original on 3 July 2018. Retrieved 3 July 2018.
  6. ^ a b c d Hofmann, Gottfried (3 January 2007). "Advanced funicular technology". International Organization for the Study of Transportation. San Francisco, Calif.: International Organization for the Study of Transportation by Rope; Internationaler Seilbahnkongress.
  7. ^ a b c Walter Hefti: Schienenseilbahnen in aller Welt. Schiefe Seilebenen, Standseilbahnen, Kabelbahnen. Birkhäuser, Basel 1975, ISBN 3-7643-0726-9 (German)
  8. ^ How it works – Great Orme Tramway
  9. ^ a b "Ceremonial Inauguration of the New Stoos Funicular". Garaventa. 18 December 2017.
  10. ^ a b Neumann, Edward S. "Cable-Propelled People Movers in Urban Environments" (PDF). Transportation Research Record. 1349: 125–132.
  11. ^ Berger, Christoph (2005). Das kleine Buch vom Stanserhorn. Erstausgabe: Christoph Berger, Stans. ISBN 3-907164-12-1.
  12. ^ Cuonz, Romano (2015). Franz Josef Bucher und Josef Durrer – Hotelkönig / Bergbahnpionier. Brunner Medien AG. ISBN 978-3-03727-063-9.
  13. ^ "Funiculaire Neuveville – St-Pierre". Transports publics fribourgeois Holding (TPF) SA.
  14. ^ a b Kirk, Mimi (16 June 2016). "A Lasting Stink: Fribourg's Sewage-Powered Funicular". The Atlantic. Retrieved 19 June 2016.
  15. ^ Wellington Cable Car
  16. ^ a b "Carmelit Haifa – The most convenient way to get around the city". Carmelit. Retrieved 4 July 2018.
  17. ^ Petřín Funicular (Lanová dráha na Petřín) – prague.eu
  18. ^ "Blunder traps eight on cliff lift". BBC News. 24 April 2009. Retrieved 2 April 2010.
  19. ^ "Tünel Kronolojisi" [Tünel Chronology] (in Turkish). İETT - Tunnel. Archived from the original on 8 November 2017. Retrieved 7 December 2017.
  20. ^ "Telegraph Hill Railroad". The Cable Car Home Page – Cable Car Lines in San Francisco. Joe Thompson. 1 July 2009. Retrieved 20 September 2009. The Telegraph Hill Railroad was not a cable car line ...; it was a funicular railway
  21. ^ "Duquesne Incline, Pittsburgh, Pennsylvania: Other Pennsylvania Inclines". inclinedplane.tripod.com/.
  22. ^ Smith, Paul (March 1998). "Thomas Cook & Son's Vesuvius Railway" (PDF). Japan Railway & Transport Review.
  23. ^ Records, Guinness World (2014). Guinness World Records. Guinness World Records. p. 191. ISBN 978-1-908843-63-0.
  24. ^ Lowbridge, Caroline. "Ten Bournemouth facts football fans might not know". BBC News. Retrieved 4 January 2016.
  25. ^ Willsher, Kim (15 December 2017). "World's steepest funicular rail line to open in Switzerland". The Guardian. Retrieved 16 December 2017.
  26. ^ Smith, Claire. "Landslip closes Lynton and Lynmouth Cliff Railway." geplus.co.uk, 31 August 2018.
  27. ^ "Schwebebahn" (in German). Dresdner Verkehrsbetriebe AG. Retrieved 5 July 2018.
  28. ^ Seitz, Peter (2017), "Auf Bohren, Biegen und Brechen durch den Berg", Tec21 (in German) (19): 34-38
  29. ^ "MiniMetro" (PDF). LEITNER ropeways.
  30. ^ "7 Line Extension Inclined Elevators" (PDF). MTA Capital Construction. 28 April 2014. Retrieved 20 June 2018.
[edit]
  • The dictionary definition of funicular at Wiktionary