Lebar sepur ganda
Dual-gauge railways by nation

In Victoria, there are sections of 1.600 mm (5 ft 3 in) and 1.435 mm (4 ft 8+1⁄2 in) dual-gauge track between Southern Cross station and West Footscray, Sunshine and Newport, Albion and Jacana, North Geelong and Gheringhap, Maryborough and Dunolly, and in various goods yards and industrial sidings. Until 2008, there was a dual-gauge line between Wodonga and Bandiana.
At Albury railway station, New South Wales, a 1.600 mm (5 ft 3 in) and 1.435 mm (4 ft 8+1⁄2 in) dual-gauge line was in place until 2011. A dual-gauge line was within Tocumwal railway station until 1988, when the standard gauge component was put out of use.
In 1900, in South Australia, a three-rail dual-gauge system was proposed in order to avoid a break of gauge. However, designing turnouts was considered to be difficult due to the difference of only 165 milimeter (6,5 inci) between the 1.435 mm (4 ft 8+1⁄2 in) and the 1.600 mm (5 ft 3 in)  broad gauge. After twenty years of discord, the proposal was abandoned. Much later, the South Australian Railways successfully adopted dual-gauge turnouts.
In Western Australia, 1.067 mm (3 ft 6 in) and 1.435 mm (4 ft 8+1⁄2 in) of double-track dual-gauge extends for 120 km (75 mi) of the main line from East Perth to Northam. Dual-gauge track is also used from the triangle at Woodbridge to Cockburn Junction, then to Kwinana on one branch and North Fremantle on the other. The signalling system detects the gauge of the approaching train and puts the signals to stop if the route is set for the wrong gauge.
In Queensland, there is a section of 1.067 mm (3 ft 6 in) and 1.435 mm (4 ft 8+1⁄2 in) dual-gauge track between the rail freight yards at Acacia Ridge and Park Road station, which is utilised by both passenger and freight trains. Freight trains to the Port of Brisbane utilise the dual gauge Fisherman Islands line that runs parallel to the Cleveland railway line from Park Road to Lindum. Passenger trains use the dual-gauge section of the Beenleigh railway line running parallel to the electric suburban narrow gauge of the Queensland Rail city network over the Merivale Bridge into platforms 2 and 3 at Roma Street Station. This is used by standard gauge interstate New South Wales TrainLink XPT services to Sydney. In 2012, a dual-gauge line was installed between Acacia Ridge and Bromelton to serve a new freight hub at Bromelton.
The 1700 kilometer (1100 mil) long Inland Railway, under construction in 2022, will have about 300 kilometer (190 mil) of dual gauge.
The Bangladesh Railway uses three rails to avoid breaks of gauge between its broad-gauge and metre-gauge lines. The Jamuna Bridge and Padma Bridge, which link the east–west and north–south rail systems respectively, have four-rail dual-gauge tracks. Of the 2.875 kilometer (1.786 mi) Bangladseh Railway system, about 1.600 kilometer (990 mi) has four-rail dual-gauge.[butuh rujukan]
[diragukan]
Tram tracks in Brussels once combined 1.000 mm (3 ft 3+3⁄8 in) lebar sepur 1 m lines for inter-urban trams and 1.435 mm (4 ft 8+1⁄2 in) lines for urban trams in a three-rail layout. In 1991, the interurban trams went out of service and then the network used only standard-gauge track.
The Sofia tramway uses a mixture of narrow and standard gauge. A 26 km (16 mi) section of track between Krasna polyana depot and Pirotska street is dual-gauge shared by 1.435 mm (4 ft 8+1⁄2 in) route 22 and 1.009 mm (3 ft 3+23⁄32 in) route 11.
The new port of Kribi may serve 1000mm gauge bauxite traffic as well as 1435mm gauge iron ore traffic.
In the Czech Republic, there is 2 km of dual gauge 1.435 mm (4 ft 8+1⁄2 in) and 760 mm (2 ft 5+15⁄16 in) track near Jindřichův Hradec. In 1985, its original four rails were converted to three rails. In 2004, in Jindřichův Hradec at a switch where a dual gauge railway bifurcates, a Junák express from Plzeň to Brno derailed due to a signalling error. The standard gauge train had been switched on to the narrow gauge track.
The Chemin de Fer de la Baie de Somme in France is dual gauge between Noyelles-sur-Mer and Saint-Valery-sur-Somme. The line has four rails with metre gauge laid within standard gauge. There are some dual-gauge (standard and Iberian) sidings at Cerbère on the Spanish border.
In the 1970s, the Stuttgarter Straßenbahnen tram lines underwent a gauge conversion from 1.000 mm (3 ft 3+3⁄8 in) gauge to standard gauge. This was part of an upgrade to the Stuttgart Stadtbahn. In 1981, 1.435 mm (4 ft 8+1⁄2 in) and 1.000 mm (3 ft 3+3⁄8 in) dual-gauge track was constructed so that new DT-8 Stadtbahn cars and old trams could share the network. In 2008, a further gauge conversion was completed. The Stuttgart Straßenbahn Museum operates 1.000 mm (3 ft 3+3⁄8 in) gauge trams on weekends and special occasions.
In Krefeld on Ostwall, Germany, tram lines are dual gauge so that standard 1.435 mm (4 ft 8+1⁄2 in) Rheinbahn U76 Stadtbahn cars and 1.000 mm (3 ft 3+3⁄8 in) gauge trams may share the lines. At the north end of the route, at the junction with Rheinstraße, the trams reverse. There, the standard gauge line ends, while the metre gauge lines continue. At the Hauptbahnhof, on Oppumer Straße, dual gauge track continues. At the ends of Oppumer Straße, the two tracks diverge.
In Mülheim there is a similar situation. The Duisburg tram line 901 meets the local line 102. The tram system in Duisburg uses 1.435 mm (4 ft 8+1⁄2 in) gauge track while the tram route from Witten to Mülheim uses 1.000 mm (3 ft 3+3⁄8 in) gauge tracks. Two lines share a tunnel section between the Mülheim (Ruhr) Hauptbahnhof and Schloss Broich then diverge at street level.
The tram network between Werne to Bad Honnef is large with various operators and gauges. The trams in Wuppertal used 1.435 mm (4 ft 8+1⁄2 in) gauge track on east–west lines and 1.000 mm (3 ft 3+3⁄8 in) gauge track on north–south lines. Trams in Duisburg used 1.435 mm (4 ft 8+1⁄2 in) gauge track on lines south of the Ruhr and 1.000 mm (3 ft 3+3⁄8 in) gauge tracks on lines north of the Ruhr. The north lines closed in the 1960s and 1970s. Duisburg's three routes were converted to 1.435 mm (4 ft 8+1⁄2 in) gauge track.
Ghana is converting its narrow gauge to standard gauge, and is installing dual-gauge sleepers as an intermediate stage.
In Greece, the line between Athens and Elefsis (now closed) was dual gauge in order to allow the 1.000 mm (3 ft 3+3⁄8 in) gauge trains of the Peloponnese rail network to pass. It also allowed standard gauge trains to reach the Elefsis shipyards. In Volos, a short section of track between the main station and the harbour used an unusual triple gauge, to accommodate standard gauge trains from Larissa, metre gauge trains from Kalambaka, and the 600 mm (1 ft 11+5⁄8 in) gauge trains of the Pelion railway.
In 1899, in the Dutch East Indies, dual gauge track was installed between Yogyakarta and Solo. The track was owned by the Nederlandsch-Indische Spoorweg Maatschappij, a private company, which in 1867 had built the 1.435 mm (4 ft 8+1⁄2 in) gauge line. The third rail was installed to allow passengers and goods travelling over the 1.067 mm (3 ft 6 in)   gauge Staatsspoorweg (state railway) a direct connection. At a later date, the government constructed new tracks to allow greater capacity and higher speeds. In 1940, a third rail was installed between Solo and Gundih on the line to Semarang, allowing 1.067 mm (3 ft 6 in) gauge trains to travel between Semarang, Solo and Yogyakarta via Gambringan, on the line to Surabaya instead of on the original line via Kedungjati.
In 1942 and 1943 in Java, under Japanese military occupation, conversion from took place 4 ft 8+1⁄2 in (1.435 mm) to 1.067 mm (3 ft 6 in) on the Brumbung–Kedungjati–Gundih main line and the Kedungjati–Ambarawa branch line.
Until the 1970s, a short section of dual gauge 1.067 mm (3 ft 6 in) and 750 mm (2 ft 5+1⁄2 in) line existed in North Sumatra on a joint line of the Deli Railway and the Atjeh Tram.
Some sugar mill railways in Java have dual-gauge sections.
Ireland's Ulster Railway underwent a gauge conversion from 1880mm to the new Irish standard of 1.600 mm (5 ft 3 in). The Dublin & Drogheda Railway underwent a gauge conversion because the gauges were too close to allow a dual-gauge line.
The Potenza – Avigliano Lucania line in Italy is a dual gauge rail with 1.435 mm (4 ft 8+1⁄2 in) and 950 mm (3 ft 1+3⁄8 in) tracks.
In Japan, the national standard is 1.067 mm (3 ft 6 in) narrow gauge. Dual gauge is used where the 1.435 mm (4 ft 8+1⁄2 in) Shinkansen (bullet train) lines join the main network. For example, part of the Ōu Main Line became part of the Akita Shinkansen and was converted to dual gauge in a limited section. The longest (821 km (510 mi)) dual gauge section in Japan is near, and in, the Seikan Tunnel. Sections of the Hakone Tozan Line are among a number of other dual-gauge lines.
Mexico previously had 1.435 mm (4 ft 8+1⁄2 in) and 914 mm (3 ft) dual gauge track.
The first railway lines in the Netherlands were constructed with a track gauge of 1.945 mm (6 ft 4+9⁄16 in). For the 1939 centennial celebration, an exact replica of the country's first locomotive "De Arend" was built using the original blueprints. Since 1953, the locomotive is housed at the Dutch National Railway Museum, where in recent years, a dual-gauge track has been constructed in the rail yard, allowing for the locomotive to drive back and forth on special occasions.
In Poland, there is 3 kilometer (1,9 mil) of 1.435 mm (4 ft 8+1⁄2 in) and 750 mm (2 ft 5+1⁄2 in) dual-gauge track in the Greater Poland Voivodeship, linking Pleszew with a nearby mainline station. It is served by narrow-gauge passenger trains and standard-gauge freight trains.
Between 2008 and 2012, a 2 km (1,2 mi) dual-gauge cross-border track was rebuilt between Khasan, Russia, and Rajin, North Korea; its gauges were the Russian 1.520 mm (4 ft 11+27⁄32 in) and Korean 1.435 mm (4 ft 8+1⁄2 in).
In Spain, there is 217 km (135 mi) of dual gauge in the AVE line from Zaragoza to Huesca, usable for both 1.435 mm (4 ft 8+1⁄2 in) standard-gauge high-speed trains and 1.668 mm (5 ft 5+21⁄32 in) Spanish network trains. Some dual-gauge  sidings are at Port Bou on the French border. In 2009, Adif called for tenders for the installation of a third rail for standard-gauge trains on the 22 km (14 mi) between Castellbisbal and the Can Tunis freight terminal in Barcelona.
The bridges at the borders of Sweden and Finland, between Haparanda and Tornio have 2 km (1,2 mi) of dual gauge, 1.435 mm (4 ft 8+1⁄2 in) and 1.524 mm (5 ft) track. At each end of the dual-gauge section are yards with standard and Finnish gauge areas to allow for trans-shipment. Four rails are used because the gauges are close and the bridge structure is wider than normal to allow for the offset from the centreline of each gauge. A Rafil gauge changer is at the Tornio yard. Similar arrangements exist on the approach to Kaliningrad, where 1.435 mm (4 ft 8+1⁄2 in) track extends from the Polish border with some sections of dual gauge.
Between Västervik and Jenny, Sweden, there is a 891 mm (2 ft 11+3⁄32 in) and 1.435 mm (4 ft 8+1⁄2 in) dual-gauge line and dual-gauge track in the Västervik station area.
In Switzerland, dual-gauge 1.435 mm (4 ft 8+1⁄2 in) track and 1.000 mm (3 ft 3+3⁄8 in) track exists between Lucerne and Horw of the Zentralbahn, between Niederbipp and Oberbipp of the Oberaargau-Jura Railways and between Chur and Domat/Ems of RhB. All three allow narrow-gauge passenger trains and standard-gauge freight trains to operate. A ″non-stop″ scheme (albeit with a pause to change locomotives) on the Montreux-Interlaken route was inaugurated in December 2022. The former Zollikofen-Worblaufen-Deisswil dual gauge was cut back to Papiermühle when the factory in Deisswil closed.[per kapan?]
The Great Western Railway in Britain was originally built to a broad gauge of 2134 mm (7 ft 0 in), subsequently widened to 2140 mm (7 ft 0½ in). After a "gauge war", the gauge was converted to 1.435 mm (4 ft 8+1⁄2 in). A dual-gauge system was easily installed as the gauges were well separated and the line had wooden sleepers. A short section of broad and standard gauge is at the Great Western Society site at Didcot.
The port authority in Derry, Northern Ireland used a dual-gauge line in a street-level network to transfer freight. Two of the city's stations were on a narrow 914 mm (3 ft) gauge. The other two city stations were on broad 1.600 mm (5 ft 3 in) gauge.
In Los Angeles, the 1.067 mm (3 ft 6 in) Los Angeles Railway and 1.435 mm (4 ft 8+1⁄2 in) Pacific Electric Railway ran on dual gauge track on some downtown streets.[per kapan?]
From 1880 to 1902, the Burlington, Cedar Rapids and Northern Railway (standard gauge) and the Burlington and Northwestern Railway (narrow gauge) shared a dual-gauge mainline from Burlington, Iowa to Mediapolis, 23 kilometer (14 mil) to the north.
The early operational years of the State Belt Railroad in San Francisco featured dual-gauge tracks to accommodate regional railroads of the time, which interchanged via ferry.
Until 1941, the Colorado and Southern Railway used both standard-gauge and narrow-gauge tracks, and had a dual-gauge line between Denver and Golden, Colorado.
Until the 1960s, the Denver and Rio Grande Western Railroad's Alamosa–Durango Line from Alamosa, Colorado to Antonito was dual-gauge.
Previously, in its Mount Union, Pennsylvania yard, the East Broad Top Railroad and Coal Company used dual-gauge tracks.
Apart from the Los Angeles Railway and the Pacific Electric Railway, the examples were 914 mm (3 ft) and 1.435 mm (4 ft 8+1⁄2 in).
In Vietnam, near the border with China, there is 1.000 mm (3 ft 3+3⁄8 in) and 1.435 mm (4 ft 8+1⁄2 in) dual-gauge track between Hanoi and Đồng Đăng. Other smaller dual-gauge sections exist elsewhere in the north-east of the country.