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A diesel multiple unit or DMU is a
multiple-unit A multiple-unit train or simply multiple unit (MU) is a self-propelled train composed of one or more carriages joined together, which when coupled to another multiple unit can be controlled by a single driver, with multiple-unit train contr ...
train powered by on-board
diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-call ...
s. A DMU requires no separate
locomotive A locomotive or engine is a rail transport vehicle that provides the Power (physics), motive power for a train. If a locomotive is capable of carrying a payload, it is usually rather referred to as a multiple unit, Motor coach (rail), motor ...
, as the engines are incorporated into one or more of the carriages. Diesel-powered single-unit
railcar A railcar (not to be confused with a railway car) is a self-propelled railway vehicle designed to transport passengers. The term "railcar" is usually used in reference to a train consisting of a single coach (carriage, car), with a drive ...
s are also generally classed as DMUs. Diesel-powered units may be further classified by their transmission type: diesel–mechanical DMMU, diesel–hydraulic DHMU, or diesel–electric DEMU.


Design

The diesel engine may be located above the frame in an engine bay or under the floor. Driving controls can be at both ends, on one end, or in a separate car.


Types by transmission

DMUs are usually classified by the method of transmitting motive power to their wheels.


Diesel–mechanical

In a diesel–mechanical multiple unit (DMMU), the rotating energy of the engine is transmitted via a
gearbox Propulsion transmission is the mode of transmitting and controlling propulsion power of a machine. The term ''transmission'' properly refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive vehicles), differe ...
and driveshaft directly to the wheels of the train, like a
car A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarded as ...
. The transmissions can be shifted manually by the driver, as in the great majority of first-generation
British Rail British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four British rai ...
DMUs, but in most applications, gears are changed automatically.


Diesel–hydraulic

In a diesel–hydraulic multiple unit (DHMU), a hydraulic
torque converter A torque converter is a type of fluid coupling that transfers rotating power from a prime mover, like an internal combustion engine, to a rotating driven load. In a vehicle with an automatic transmission, the torque converter connects the power ...
, a type of fluid coupling, acts as the transmission medium for the motive power of the diesel engine to turn the wheels. Some units feature a hybrid mix of hydraulic and mechanical transmissions, usually reverting to the latter at higher operating speeds as this decreases engine RPM and noise.


Diesel–electric

In a diesel–electric multiple unit (DEMU), a
diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-call ...
drives an
electrical generator In electricity generation, a generator is a device that converts motive power (mechanical energy) or fuel-based power (chemical energy) into electric power for use in an external circuit. Sources of mechanical energy include steam turbines, gas ...
or an
alternator An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature.Go ...
which produces
electrical energy Electrical energy is energy related to forces on electrically charged particles and the movement of electrically charged particles (often electrons in wires, but not always). This energy is supplied by the combination of electric current and electr ...
. The generated current is then fed to electric
traction motor A traction motor is an electric motor used for propulsion of a vehicle, such as locomotives, electric vehicle, electric or hydrogen vehicles, elevators or electric multiple unit. Traction motors are used in electrically powered rail vehicles (ele ...
s on the
wheel A wheel is a circular component that is intended to rotate on an axle Bearing (mechanical), bearing. The wheel is one of the key components of the wheel and axle which is one of the Simple machine, six simple machines. Wheels, in conjunction wi ...
s or
bogie A bogie ( ) (in some senses called a truck in North American English) is a chassis or framework that carries a wheelset, attached to a vehicle—a modular subassembly of wheels and axles. Bogies take various forms in various modes of transp ...
s in the same way as a conventional
diesel–electric locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving wheels ...
. On some DEMUs, such as the
Bombardier Voyager The Bombardier Voyager is a family of high-speed 125 mph diesel-electric multiple units built in Belgium by Bombardier Transportation, for service on the railway network of the United Kingdom. Construction of the Voyager family took place betwe ...
, each car is entirely self-contained and has its own engine, generator and electric motors. In other designs, such as the
British Rail Class 207 The British Rail Class 207 ( 3D) diesel-electric multiple units were built by BR at Eastleigh in 1962. The fleet had a lifespan of 42 years. The Southern Region class 201 to 207 DEMUs are nicknamed 'Thumpers' due to the noise their engine units ...
or the
Stadler GTW The Stadler GTW is an articulated railcar for local transport made by Stadler Rail of Switzerland. GTW stands for Gelenktriebwagen (articulated railcar). History The Biel–Täuffelen–Ins-Bahn near Bern, Switzerland was looking for a lighter ...
and Stadler FLIRT DMU, some cars within the
consist In rail transport, a train (from Old French , from Latin , "to pull, to draw") is a series of connected vehicles that run along a railway track and Passenger train, transport people or Rail freight transport, freight. Trains are typically pul ...
may be entirely unpowered or only feature electric motors, obtaining electric current from other cars in the consist which have a generator and engine. With diesel–electric transmission, some DMU can be no other than an
EMU The emu () (''Dromaius novaehollandiae'') is the second-tallest living bird after its ratite relative the ostrich. It is endemic to Australia where it is the largest native bird and the only extant member of the genus ''Dromaius''. The emu' ...
without
pantograph A pantograph (, from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. If a line dr ...
, which "is substituted" by one or more on-board
diesel generator A diesel generator (DG) (also known as a diesel Genset) is the combination of a diesel engine with an electric generator (often an alternator) to generate electrical energy. This is a specific case of engine generator. A diesel compression- ...
s; this kind of DEMU can be potentially upgraded to electro-diesel multiple unit ''EDMU'', becoming a bi-mode multiple units train (BMU), just adding one or two pantographs (with opportune converters, if necessary) and related modifications on the electric system.


Around the world


Europe


Belgium

NMBS/SNCB uses its NMBS/SNCB Class 41 DMUs on the few remaining unelectrified lines. As electrification progresses, the DMUs become less and less important.


Croatia

Diesel multiple units cover large number of passenger lines in
Croatia , image_flag = Flag of Croatia.svg , image_coat = Coat of arms of Croatia.svg , anthem = "Lijepa naša domovino"("Our Beautiful Homeland") , image_map = , map_caption = , capit ...
which are operated by the national passenger service operator HŽ Putnički Prijevoz. On Croatian Railways, DMUs have important role since they cover local, regional and distant lines all across the country. The country's two largest towns,
Zagreb Zagreb ( , , , ) is the capital (political), capital and List of cities and towns in Croatia#List of cities and towns, largest city of Croatia. It is in the Northern Croatia, northwest of the country, along the Sava river, at the southern slop ...
and
Split Split(s) or The Split may refer to: Places * Split, Croatia, the largest coastal city in Croatia * Split Island, Canada, an island in the Hudson Bay * Split Island, Falkland Islands * Split Island, Fiji, better known as Hạfliua Arts, enterta ...
, are connected with an inter-city service that is provided by DMU tilting trains " RegioSwinger" (Croatian series 7123) since 2004. Those trains may also cover other lines in the country depending on need and availability. Luxury DMU series 7021, built in
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
, started to operate for
Yugoslav Railways Yugoslav Railways ( sh-Latn-Cyrl, Jugoslavenske željeznice/Jugoslovenske železnice, Југославенске жељезнице/Југословенске железнице; mk, Југословенски железници; sl, Jugoslovans ...
in 1972 and after 1991 stil remained in service of Croatian Railways until 2005. Units 7121 and 7122 (which came as a replacement for 7221 units), together with the newest series 7022 and 7023 built in 2010s Croatia, cover many of the country's local and regional services on unelectrified or partly electrified lines.


Czech Republic

Diesel multiple units also cover large number of passenger lines in the Czech Republic which are operated by the national operator
České dráhy České dráhy (English: ''Czech Railways''), often shortened to ČD, is the major railway operator in the Czech Republic providing regional and long-distance services. Overview The company was established in 1993, after the dissolution of Cze ...
. They have important role since they cover local, regional and distant lines all across the country. Those trains may also cover other lines in the country depending on need and availability too. Also, the DMUs were manufactured for foreign carriers. The tables of cars and units are divided into vehicles operated until 1987, when the
ČSD Czechoslovak State Railways (''Československé státní dráhy'' in Czech or ''Československé štátne dráhy'' in Slovak, often abbreviated to ČSD) was the state-owned railway company of Czechoslovakia. The company was founded in 1918 a ...
used the series designations proposed by Vojtěch Kryšpín, and vehicles created after this date, which no longer have Kryšpín's designations (with some exceptions). In addition, these new cars are the new vehicles are already different in both countries.


Estonia

Elron has since 2015 a Stadler FLIRT fleet, with 20 trains DEMU version.


Germany

Germany has employed DMUs for both commuter and express services for many decades. The SVT 877 ''
Fliegender Hamburger The DRG Class SVT 877 Hamburg Flyer – sometimes also Flying Hamburger or in German ''Fliegender Hamburger'' – was Germany's first fast diesel train, and is credited with establishing the fastest regular railway connection in the world in its ti ...
'' DMU, introduced in 1933, made the run from Berlin to Hamburg in an astonishing 138 minutes, and its derivative SVT 137 broke the land speed record in 1936. After World War 2, the VT 11.5 DMU was the flagship of the glamorous
Trans Europ Express The Trans Europ Express, or Trans-Europe Express (TEE), was an international first-class railway service in western and central Europe that was founded in 1957 and ceased in 1995. At the height of its operations, in 1974, the TEE network compri ...
. Since 1968, DB has designated DMUs with class numbers beginning in 6. While DB and regional transport authorities generally prefer electric power for commuter rail, many local and rural lines remain un-electrified, and DMUs are invaluable in providing services to those areas. DMUs in service as of 2021 include the Adtranz Class 612 tilting train ("Regio Swinger"), the
Alstom Coradia LINT The Alstom Coradia LINT is an articulated railcar manufactured by Alstom since 1999, offered in diesel and hydrogen fuel models. The acronym ''LINT'' is short for the German ''"leichter innovativer Nahverkehrstriebwagen"'' (light innovative loca ...
(Classes 620–623, 640 and 648), the
Siemens Desiro The Siemens Desiro (, , ) is a family of diesel or electric multiple unit passenger trains developed by Siemens Mobility, a division of the German Siemens AG conglomerate. The main variants are the Desiro Classic, Desiro ML, Desiro UK and the la ...
(Class 642) and the
Bombardier Talent The Talent is a multiple unit railcar manufactured by Bombardier that was developed by Waggonfabrik Talbot in Aachen shortly before the company was acquired by Bombardier in 1995. The name ''Talent'' is an acronym in German for ''TALbot LEicht ...
(Class 643/644). From 2001 to 2016 there was even a DMU version of DB's high-speed
Intercity Express The Intercity Express (commonly known as ICE ()) is a system of high-speed trains predominantly running in Germany. It also serves some destinations in Austria, Denmark (ceased in 2017 but planned to resume in 2022), France, Belgium, Switzerla ...
, the Class 605
ICE TD The DBAG Class 605, commonly known as the ICE TD is a high-speed diesel multiple unit (DMU) train, formerly in service with Deutsche Bahn and DSB. History Development Following the successful inauguration of the Intercity-Express system ...
.


Greece

Diakopto–Kalavryta railway The Diakopto–Kalavryta railway ( el, Οδοντωτός σιδηρόδρομος Διακοπτού - Καλαβρύτων, Odontotós sidiródromos Diakoptoú - Kalavrýton) is a historic 750 mm (2 ft -in) gauge rack railway in Greec ...


Ireland

In the Republic of Ireland the Córas Iompair Éireann (CIÉ), which controlled the republic's railways between 1945 and 1986, introduced DMUs in the mid-1950s and they were the first diesel trains on many main lines.


Romania

DMUs are used mostly on shorter or less frequently travelled routes in remote areas. The national railway company CFR still uses, along with other DMU models, Class 77 and 78 DMUs, locally built by Malaxa between the 1930s and 50s and refurbished in the 70s. The main DMU in use is the Class 96
Siemens Desiro The Siemens Desiro (, , ) is a family of diesel or electric multiple unit passenger trains developed by Siemens Mobility, a division of the German Siemens AG conglomerate. The main variants are the Desiro Classic, Desiro ML, Desiro UK and the la ...
aka Săgeata Albastră (The Blue Arrow). Private operators also largely use DMU units, mainly purchased from various French and German operators.


Slovakia

In the present, several types of DMUs operate in Slovakia. Was the most common type in Slovakia is a Class 812 ZSSK based on the ČD Class 810. These are used almost exclusively for hauling passenger trains on non-electrified regional lines and these trains often excel in low travel speeds. In the past, however, in Slovakia there were a number of
express train An express train is a type of passenger train that makes a small number of stops between its origin and destination stations, usually major destinations, allowing faster service than Local train, local trains that stop at most or all of the s ...
s driven by motor coaches, which often overcame heavier trains driven by steam locomotives at cruising speed, and classic sets. A typical example can be, for example, the Slovenská strela motor express train led on the Bratislava-Prague route by a motor car of the same name, or the Tatran express from Bratislava to Košice. Representatives of high-speed motor wagons were, for example, motor wagons of the M262 or M286 series, which, however, lost their application in high-speed wagons due to the gradual electrification of main lines and were, like the current wagons currently used for passenger trains.


United Kingdom

The first significant use of DMUs in the United Kingdom was by the
Great Western Railway The Great Western Railway (GWR) was a British railway company that linked London with the southwest, west and West Midlands of England and most of Wales. It was founded in 1833, received its enabling Act of Parliament on 31 August 1835 and ran ...
, which introduced its small but successful series of diesel–mechanical
GWR railcars In 1933, the Great Western Railway introduced the first of what was to become a very successful series of diesel railcars, which survived in regular use into the 1960s, when they were replaced with the new British Rail "first generation" type ...
in 1934. The
London & North Eastern Railway London is the capital and largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary down to the North Sea, and has been a major se ...
and
London, Midland & Scottish Railway The London, Midland and Scottish Railway (LMSIt has been argued that the initials LMSR should be used to be consistent with LNER, GWR and SR. The London, Midland and Scottish Railway's corporate image used LMS, and this is what is generally u ...
also experimented with DMUs in the 1930s, the LMS both on its own system, and on that of its Northern Irish subsidiary, but development was curtailed by
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
. After nationalisation,
British Rail British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four British rai ...
ways (BR) revived the concept in the early 1950s. At that time there was an urgent need to move away from expensive steam traction which led to many experimental designs using diesel propulsion and
multiple unit A multiple-unit train or simply multiple unit (MU) is a self-propelled train composed of one or more carriages joined together, which when coupled to another multiple unit can be controlled by a single driver, with multiple-unit train contr ...
s. The early DMUs proved successful, and under BR's
1955 Modernisation Plan Events January * January 3 – José Ramón Guizado becomes president of Panama. * January 17 – , the first nuclear-powered submarine, puts to sea for the first time, from Groton, Connecticut. * January 18– 20 – Battle of Yijian ...
the building of a large fleet was authorised. These BR "First Generation" DMUs were built between 1956 and 1963. BR required that contracts for the design and manufacture of new locomotives and rolling stock be split between numerous private firms as well as BR's own workshops, while different BR Regions laid down different specifications. The result was a multitude of different types, one of which was: * 'Intercity' units, which were more substantially constructed, and shared many features with contemporary hauled coaching stock. They were built for express services on important secondary routes on the Scottish,
North Eastern The points of the compass are a set of horizontal, radially arrayed compass directions (or azimuths) used in navigation and cartography. A compass rose is primarily composed of four cardinal directions—north, east, south, and west—each sepa ...
and
Western Western may refer to: Places *Western, Nebraska, a village in the US *Western, New York, a town in the US *Western Creek, Tasmania, a locality in Australia *Western Junction, Tasmania, a locality in Australia *Western world, countries that id ...
regions. In 1960, British Railways introduced its
Blue Pullman Blue is one of the three primary colours in the RYB colour model (traditional colour theory), as well as in the RGB (additive) colour model. It lies between violet and cyan on the spectrum of visible light. The eye perceives blue when ob ...
high-speed DEMUs. These were few in number and relatively short-lived, but they paved the way for the very successful
InterCity 125 The InterCity 125 (originally Inter-City 125New trai ...
or High Speed Train (HST) units, which were built between 1975 and 1982 to take over most principal express services on non-electrified routes. These trains run with a streamlined power car at each end and (typically) seven to nine intermediate trailer cars. Although originally classified as DEMUs, the trailer cars are very similar to loco-hauled stock, and the power cars were later reclassified as locomotives under Class 43. HSTs started being replaced in 2017, but as of October 2022 some are still in use. By the early 1980s, many of the surviving First Generation units were reaching the end of their design life, leading to spiralling maintenance costs, poor reliability and a poor public image for the railway. A stopgap solution was to convert some services back to locomotive haulage, as spare locomotives and hauled coaching stock were available, but this also increased operating costs. Commencing in the mid '80s, British Rail embarked upon its so called "Sprinterisation" programme, to replace most of the first generation DMUs and many locomotive-hauled trains with three new families of DMU: * Class 140–144 ''Pacer''
railbus A railbus is a lightweight passenger railcar that shares many aspects of its construction with a bus, typically having a bus (original or modified) body and four wheels on a fixed base, instead of on bogies. Originally designed and developed ...
es, ultra-low-cost diesel–mechanical units utilising four-wheeled chassis and lightweight bus bodywork, designed for provincial branch line and stopping services. * Sprinter a family of diesel–hydraulic DMUs. These fall into three sub-groups; Class 150 ''Sprinters'' (for branch line/commuter service), Class 153 / 155 / 156 ''Super Sprinters'' (for longer cross country services), and Class 158 /
159 Year 159 ( CLIX) was a common year starting on Sunday (link will display the full calendar) of the Julian calendar. At the time in Roman territories, it was known as the Year of the Consulship of Quintillus and Priscus (or, less frequently, year ...
''Express'' units (for secondary express services); * Networker diesel–hydraulic units, of Class 165 ''Network Turbo'' (standard commuter version) and Class 166 ''Network Express'' (for longer distance commuter services). These took over the remaining non-electric commuter services into London. Following the
impact of the privatisation of British Rail The impact of the privatisation of British Rail has been the subject of much debate, with the stated benefits including improved customer service, and more investment; and stated drawbacks including higher fares, lower punctuality and increased r ...
in the late 1990s, several other diesel–hydraulic DMU families have been introduced: * Class 168 ''Clubman'' and Class 170/
171 Year 171 (Roman numerals, CLXXI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Severus and Herennianus (or, less frequently, year 92 ...
/
172 Year 172 ( CLXXII) was a leap year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Scipio and Maximus (or, less frequently, year 925 '' Ab urbe condita ...
Bombardier ''Turbostar'', a development of the earlier ''Networkers''. These are built by Adtranz and later Bombardier at
Derby Litchurch Lane Works Derby Litchurch Lane Works (formerly Derby Carriage and Wagon Works) is a railway rolling stock factory in Derby, England. It was opened in the 19th century by the Midland Railway. The plant has produced rolling stock under the ownership of the ...
and are the most numerous and widespread of the post-privatisation designs. Purchased by
Anglia Railways Anglia Railways was a train operating company in England, owned by GB Railways and later FirstGroup, that operated the Anglia franchise from January 1997 until March 2004. History The InterCity Anglia franchise was awarded by the Director of P ...
,
Central Trains Central Trains was a train operating company in the United Kingdom owned by National Express that operated a variety of local and inter-regional trains from 2 March 1997 until 11 November 2007. Overview Created out of the Central division o ...
,
Chiltern Railways Chiltern Railways, formally The Chiltern Railway Company Limited, is a British train operating company that has operated the Chiltern Railways franchise since July 1996. Since 2009, it has been a subsidiary of Arriva UK Trains. Chiltern Railw ...
,
London Midland London Midland was a train operating company in England which operated the West Midlands franchise between 11 November 2007 and 10 December 2017. It was owned by the British transport group Govia. London Midland was created as a result of Gov ...
,
London Overground Rail Operations London Overground Rail Operations Limited was a train operating company contracted to operate the London Overground train service on the National Rail network, under the franchise control of Transport for London. The company was a 50/50 joint ...
,
Midland Mainline Midland Mainline was a train operating company in the United Kingdom owned by National Express that operated the Midland Main Line franchise from April 1996 until November 2007. Midland Mainline ran fast and semi-fast passenger services from ...
and
ScotRail ScotRail Trains Limited, trading as ScotRail ( gd, Rèile na h-Alba), is a Scottish train operating company that is publicly owned by Scottish Rail Holdings on behalf of the Scottish Government. It has been operating the ScotRail franchise a ...
. * Class 175 Alstom ''Coradia'' were designed by
Alstom Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia ...
as a rival to the 170 Turbostar, but bought only by
First North Western First North Western was a train operating company in England owned by FirstGroup that operated the North West Regional Railways franchise from March 1997 until December 2004. History In the lead up to the privatisation of British Rail, the Nor ...
*
Class 180 The British Rail Class 180 is a class of 14 Diesel multiple unit#Diesel–hydraulic, diesel-hydraulic Multiple unit, multiple-unit passenger trains manufactured by Alstom at its Washwood Heath factory in 2000/01 for First Great Western (FGW) . T ...
''Adelante'' were an Alstom design for express services built only for
First Great Western Great Western Railway (GWR) is a British train operating company owned by FirstGroup that operates the Greater Western passenger railway franchise. It manages 197 stations and its trains call at over 270. GWR operates long-distance inter-city ...
* Class 185 Siemens ''Desiro'', built by
Siemens Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', '' ...
introduced in 2006 by
First TransPennine Express First TransPennine Express was a British train operating company jointly owned by FirstGroup and Keolis which operated the TransPennine Express franchise. First TransPennine Express ran regular Express regional railway services between the major ...
* Class 195/
196 Year 196 ( CXCVI) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Dexter and Messalla (or, less frequently, year 949 ''Ab urbe condita ...
CAF ''Civity'', being built by CAF for
Arriva Rail North Arriva Rail North, branded as Northern by Arriva (legal name Arriva Rail North Limited) was a train operating company in Northern England which began operating the Northern franchise on 1 April 2016 and inherited units from the previous operato ...
and
West Midlands Trains West Midlands Trains (WMT) is a train operating company in the United Kingdom. It operates passenger trains on the West Midlands franchise between London and the English Midlands under two trade names: West Midlands Railway (WMR) (within the ...
* Class 220/
221 __NOTOC__ Year 221 (Roman numerals, CCXXI) was a common year starting on Monday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Gratus and Vitellius (or, less frequently, ...
/
222 __NOTOC__ Year 222 ( CCXXII) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Antoninus and Severus (or, less frequently, ye ...
'' Voyagers/Meridian'' built by Bombardier in
Bruges Bruges ( , nl, Brugge ) is the capital and largest City status in Belgium, city of the Provinces of Belgium, province of West Flanders in the Flemish Region of Belgium, in the northwest of the country, and the sixth-largest city of the countr ...
for
Hull Trains Hull Trains is an open-access railway operator in England owned by the multinational transport company FirstGroup. It operates long-distance passenger services between Hull / Beverley and London King's Cross. It has a track-access agreement ...
, Midland Mainline and
Virgin CrossCountry Virgin CrossCountry was a train operating company in the United Kingdom operating the InterCity CrossCountry passenger franchise from January 1997 until November 2007. Virgin CrossCountry operated some of the longest direct rail services in th ...
In 2018, the first bi and tri-mode electro-diesel multiple units were introduced: * Class 800/ 802s are being built by
Hitachi () is a Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation headquartered in Chiyoda, Tokyo, Japan. It is the parent company of the Hitachi Group (''Hitachi Gurūpu'') and had formed part of the Ni ...
for
Great Western Railway The Great Western Railway (GWR) was a British railway company that linked London with the southwest, west and West Midlands of England and most of Wales. It was founded in 1833, received its enabling Act of Parliament on 31 August 1835 and ran ...
, Hull Trains,
London North Eastern Railway London North Eastern Railway (LNER) is a British train operating company. It is owned by the DfT OLR Holdings for the Department for Transport (DfT). The company's name echoes that of the London and North Eastern Railway, one of the Big Four ...
and
TransPennine Express TransPennine Express (TPE), legally First TransPennine Express Limited, is a British train operating company owned by FirstGroup that operates the TransPennine Express franchise. It runs regional and inter-city rail services between the major ci ...
* Class 755 Stadler ''FLIRT'' are to be operated by
Abellio Greater Anglia Greater Anglia (legal name Abellio East Anglia Limited) is a train operating company in Great Britain owned as a joint venture by Abellio (transport company), Abellio, the international arm of the state-owned Dutch national rail operator Neder ...
* Class 769s are being converted by
Brush Traction Brush Traction is a manufacturer and maintainer of railway locomotives in Loughborough, England. It is a subsidiary of Wabtec. History Hughes's Locomotive & Tramway Engine Works Henry Hughes had been operating at the Falcon Works since t ...
from Class 319s for Arriva Rail North, Great Western Railway and
KeolisAmey Wales Keolis Amey Operations ( cy, Gweithrediadau KeolisAmey), Full legal name is bilingual including the Welsh name, as "Keolis Amey Operations / Gweithrediadau Keolis Amey Limited". trading as Transport for Wales Rail Services (TfW Rail Services) ...
* Class 230s are being converted by
Vivarail Vivarail is a British rolling stock manufacturer, founded in 2012 and based in Southam. Vivarail's main project is the conversion of retired London Underground D78 Stock into two new classes for National Rail services. It was led by former Chil ...
from
London Underground D78 Stock The London Underground D78 Stock, commonly referred to as D Stock, was a type of sub-surface rolling stock which operated on the District line of the London Underground, except on the Wimbledon to Edgware Road service. The first units were wit ...
for West Midland Trains and
Transport for Wales Transport for Wales (TfW; cy, Trafnidiaeth Cymru; cy, TrC, label=none) is a not-for-profit company owned by the Welsh Government and managed at arms length by its appointed board. TfW oversees the Transport for Wales Group (TfW Group) consi ...
Transport for Wales Rail Transport for Wales Rail Limited, branded as Transport for Wales and TfW Rail ( and ), is a Welsh publicly owned train operating company, a subsidiary of Transport for Wales (TfW), a Welsh Government-owned company. It commenced operations of t ...


North America


Canada

Canada generally follows similar buffer strength requirements to the US,Such as the Railroad Safety Appliance Act of 1893. but new services are evaluated on a case-by-case basis. As a result, several types of lightweight DMUs have been used: * The
O-Train The O-Train is a light metro transit system in Ottawa, Ontario, Canada, operated by OC Transpo. The O-Train system has two lines, the electrically-operated Confederation Line (Line 1) and the diesel-operated Trillium Line (Line 2). Since May 20 ...
Trillium Line The Trillium Line (french: Ligne Trillium), also called O-Train Line 2 (french: Ligne 2 de l'O-Train), is a diesel light rail transit (DLRT) service in Ottawa, Ontario, Canada, operated by OC Transpo. The line has been closed since May 2020 f ...
in
Ottawa, Ontario Ottawa (, ; Canadian French: ) is the capital city of Canada. It is located at the confluence of the Ottawa River and the Rideau River in the southern portion of the province of Ontario. Ottawa borders Gatineau, Quebec, and forms the core ...
uses European-standard
Alstom Coradia LINT The Alstom Coradia LINT is an articulated railcar manufactured by Alstom since 1999, offered in diesel and hydrogen fuel models. The acronym ''LINT'' is short for the German ''"leichter innovativer Nahverkehrstriebwagen"'' (light innovative loca ...
(previously
Bombardier Talent The Talent is a multiple unit railcar manufactured by Bombardier that was developed by Waggonfabrik Talbot in Aachen shortly before the company was acquired by Bombardier in 1995. The name ''Talent'' is an acronym in German for ''TALbot LEicht ...
) DMUs on conventional railway tracks under a specific safety agreement with
Transport Canada Transport Canada (french: Transports Canada) is the department within the Government of Canada responsible for developing regulations, policies and services of road, rail, marine and air transportation in Canada. It is part of the Transportati ...
. *
Via Rail Via Rail Canada Inc. (), operating as Via Rail or Via, is a Canadian Crown corporation that is mandated to operate intercity passenger rail service in Canada. It receives an annual subsidy from Transport Canada to offset the cost of operating ...
operates
Budd Rail Diesel Car The Budd Rail Diesel Car, RDC, Budd car or Buddliner is a self-propelled diesel multiple unit (DMU) railcar. Between 1949 and 1962, 398 RDCs were built by the Budd Company of Philadelphia, Pennsylvania, United States. The cars were primarily adop ...
s on its
Sudbury – White River train Sudbury may refer to: Places Australia * Sudbury Reef, Queensland Canada * Greater Sudbury, Ontario (official name; the city continues to be known simply as Sudbury for most purposes) ** Sudbury (electoral district), one of the city's federal e ...
. * Réseau Charlevoix (
Le Massif (, ), known as just Le Massif, is a ski area in Quebec, Canada, northeast of Quebec City and directly overlooking the St. Lawrence River. Description ski area is located in Petite-Rivière-Saint-François, Charlevoix, Quebec, a 50-minute dr ...
) operates a shuttle in the
Charlevoix Charlevoix ( , ) is a cultural and natural region in Quebec, on the north shore of the Saint Lawrence River as well as in the Laurentian Mountains area of the Canadian Shield. This dramatic landscape includes rolling terrain, fjords, headlands ...
region, Québec. *
Canadian National The Canadian National Railway Company (french: Compagnie des chemins de fer nationaux du Canada) is a Canadian Class I railroad, Class I freight railway headquartered in Montreal, Quebec, which serves Canada and the Midwestern United States, M ...
operates the small custom-built
Kaoham Shuttle The Kaoham Shuttle is a Lillooet– Seton Portage passenger rail service along the northern shore of Seton Lake in the Squamish-Lillooet region of southwestern British Columbia. By BC Highway 99, the eastern terminus is about northeast of Vanc ...
between
Lillooet Lillooet () is a district municipality in the Squamish-Lillooet region of southwestern British Columbia. The town is on the west shore of the Fraser River immediately north of the Seton River mouth. On BC Highway 99, the locality is by road abou ...
, and D'Arcy via
Seton Portage Seton Portage () is a community located on a narrow strip of land between Anderson Lake and Seton Lake in Squamish-Lillooet Regional District, British Columbia. The community is home to two Seton Lake First Nation communities at either end of t ...
, northeast of
Vancouver Vancouver ( ) is a major city in western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the ...
, in a partnership with the
Seton Lake Indian Band The Seton Lake First Nation, a.k.a. the Seton Lake Indian Band, is a First Nations government located in the Central Interior-Fraser Canyon region of the Canadian province of British Columbia. It is a member of the Lillooet Tribal Council, which ...
."Kaoham Shuttle" page, Seton Lake Indian Band website (Tsalalh.net)
*
Union Pearson Express The Union Pearson Express (UP Express or UPX) is an airport rail link connecting Union Station in Downtown Toronto to Toronto Pearson International Airport. The UP Express began operation on 6 June 2015, in time for the 2015 Pan American Games. ...
uses
Nippon Sharyo DMU The Nippon Sharyo DMU is a model of diesel multiple unit passenger train designed and manufactured by Nippon Sharyo for the North American market, and compliant with FRA Tier 1 crashworthiness standards. It has been ordered by Sonoma–Marin Area ...
trains for express service between
Union Station A union station (also known as a union terminal, a joint station in Europe, and a joint-use station in Japan) is a railway station at which the tracks and facilities are shared by two or more separate railway companies, allowing passengers to ...
and
Pearson Airport Lester B. Pearson International Airport , commonly known as Toronto Pearson International Airport, is an international airport located in Mississauga, Ontario, Canada. It is the main airport serving Toronto, its metropolitan area, and the su ...
.


Costa Rica

Costa Rica has purchased several Apolo 2400 series DMU railcars from the former narrow gauge operator in Spain, which are run in commuter service.


United States

A type of diesel multiple units in the U.S. was the
Budd Rail Diesel Car The Budd Rail Diesel Car, RDC, Budd car or Buddliner is a self-propelled diesel multiple unit (DMU) railcar. Between 1949 and 1962, 398 RDCs were built by the Budd Company of Philadelphia, Pennsylvania, United States. The cars were primarily adop ...
(RDC). The RDC was a single passenger car with two diesel engines and two sets of controls. In the United States, DMU systems must be FRA-compliant to be permitted on freight rail corridors. The Federal Railway Administration has mandated higher coupling strength requirements than European regulators, effectively prohibiting the use of lighter weight European-style
inter-city rail Inter-city rail services are express passenger train services that run services that connect cities over longer distances than commuter or regional trains. There is no precise definition of inter-city rail; its meaning may vary from country ...
DMUs on U.S. main line railways without timesharing with freight operations or special waivers from the FRA. This has greatly restricted the development of DMUs within the U.S. as no other country requires the much heavier FRA compliant vehicles, and no export market for them exists. Operations using FRA-compliant vehicles: *The
South Florida Regional Transportation Authority South Florida Regional Transportation Authority (SFRTA), based in Pompano Beach, Florida, provides public transport services in Miami-Dade, Broward, and Palm Beach Counties. The organization was created on July 1, 2003, by the Florida Legislatur ...
has used a
Colorado Railcar Colorado Railcar was a manufacturer of railroad rolling stock—railcars and diesel multiple unit commuter vehicles. Both products came in single- and double-level versions. It shut down in 2008, with its assets being purchased by US Railcar. His ...
bi-Level DMU and Coach consist since October 2006 as a technology demonstrator on the long
Tri-Rail Tri-Rail is a commuter rail line linking Miami, Fort Lauderdale and West Palm Beach in Florida, United States. The ''Tri'' prefix in the name refers to the three counties served by the railroad: Palm Beach, Broward, and Miami-Dade. Tri-Rail i ...
commuter rail line between
Miami Miami ( ), officially the City of Miami, known as "the 305", "The Magic City", and "Gateway to the Americas", is a East Coast of the United States, coastal metropolis and the County seat, county seat of Miami-Dade County, Florida, Miami-Dade C ...
and
West Palm Beach West or Occident is one of the four cardinal directions or points of the compass. It is the opposite direction from east and is the direction in which the Sunset, Sun sets on the Earth. Etymology The word "west" is a Germanic languages, German ...
,
Florida Florida is a state located in the Southeastern region of the United States. Florida is bordered to the west by the Gulf of Mexico, to the northwest by Alabama, to the north by Georgia, to the east by the Bahamas and Atlantic Ocean, and to ...
. In early 2007, three more bi-level DMUs and an additional bi-level non-powered coach were acquired. * Since February 2009,
TriMet TriMet, formally known as the Tri-County Metropolitan Transportation District of Oregon, is a public agency that operates mass transit in a region that spans most of the Portland metropolitan area in the U.S. state of Oregon. Created in 1969 ...
is using FRA-compliant
Colorado Railcar Colorado Railcar was a manufacturer of railroad rolling stock—railcars and diesel multiple unit commuter vehicles. Both products came in single- and double-level versions. It shut down in 2008, with its assets being purchased by US Railcar. His ...
DMUs for its rush-hour
WES Commuter Rail The Westside Express Service (WES) is a commuter rail line serving part of the Portland metropolitan area's Washington County and a small portion of Clackamas County in the U.S. state of Oregon. Owned by TriMet and operated by Portland & West ...
service, a suburb-to-suburb line between Beaverton and
Wilsonville, Oregon Wilsonville is a city primarily in Clackamas County, Oregon, United States. A portion of the northern section of the city is in Washington County. It was founded as Boones Landing because of the Boones Ferry which crossed the Willamette River at ...
. The opening of the line was delayed from fall 2008 to early 2009 due to delays in getting the vehicles. TriMet also has four refurbished former Alaska RR and
Trinity Railway Express The Trinity Railway Express (TRE) is a commuter rail line in the Dallas–Fort Worth metroplex. It was established by an interlocal agreement between Dallas Area Rapid Transit (DART) and Trinity Metro. Each transit authority owns a 50% stake in ...
RDCs as backup trainsets for when one or more Colorado Railcar DMUs is out of service. * Also in
Oregon Oregon () is a U.S. state, state in the Pacific Northwest region of the Western United States. The Columbia River delineates much of Oregon's northern boundary with Washington (state), Washington, while the Snake River delineates much of it ...
, former
BC Rail BC Rail is a railway in the Canadian province of British Columbia. Chartered as a private company in 1912 as the Pacific Great Eastern Railway (PGE), it was acquired by the provincial government in 1918. In 1972 it was renamed to the British ...
RDCs were used on the Lewis and Clark Explorer excursion train from
Portland Portland most commonly refers to: * Portland, Oregon, the largest city in the state of Oregon, in the Pacific Northwest region of the United States * Portland, Maine, the largest city in the state of Maine, in the New England region of the northeas ...
to Astoria. *
Sonoma–Marin Area Rail Transit Sonoma–Marin Area Rail Transit (SMART) is a rail line and bicycle-pedestrian pathway project in Sonoma and Marin counties of the U.S. state of California. When completed, the entire system will serve a corridor between Cloverdale in north ...
, also referred to as SMART, operates
Nippon Sharyo DMU The Nippon Sharyo DMU is a model of diesel multiple unit passenger train designed and manufactured by Nippon Sharyo for the North American market, and compliant with FRA Tier 1 crashworthiness standards. It has been ordered by Sonoma–Marin Area ...
s (the same as those in Toronto) on its route between Larkspur and Santa Rosa, California. Service commenced in 2017. Operations using non FRA-compliant vehicles: *
Capital Metro The Capital Metropolitan Transportation Authority, officially stylized as CapMetro, is a public transportation provider located in Austin, Texas. It operates bus, paratransit services and a commuter rail system known as the Capital MetroRail i ...
uses
Stadler GTW The Stadler GTW is an articulated railcar for local transport made by Stadler Rail of Switzerland. GTW stands for Gelenktriebwagen (articulated railcar). History The Biel–Täuffelen–Ins-Bahn near Bern, Switzerland was looking for a lighter ...
cars to operate
Capital MetroRail Capital MetroRail is a hybrid rail (light rail with some features similar to commuter rail) line that serves the Greater Austin area in Texas, and which is owned by Capital Metropolitan Transportation Authority, Capital Metro. The Red Line, Capi ...
, a commuter rail line serving the
Greater Austin The Austin–Round Rock–San Marcos metropolitan statistical area (or Greater Austin) is a five-county metropolitan area in the U.S. state of Texas, as defined by the Office of Management and Budget. The metropolitan area is situated in Ce ...
,
Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...
area. * In
Denton County Denton County is located in the U.S. state of Texas. As of the 2020 census, its population was 906,422, making it the 7th-most populous county in Texas. The county seat is Denton. The county, which was named for John B. Denton, was establis ...
,
Texas Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2 ...
, DCTA also uses
Stadler GTW The Stadler GTW is an articulated railcar for local transport made by Stadler Rail of Switzerland. GTW stands for Gelenktriebwagen (articulated railcar). History The Biel–Täuffelen–Ins-Bahn near Bern, Switzerland was looking for a lighter ...
cars to operate its
A-train is a series of business simulation video games developed and published by Japanese game developer Artdink in Japan. The first game in the series was published in 1985. The first release in the United States was ''Take the A-Train II'', published ...
service. DCTA has secured from the FRA the first-ever alternative vehicle technology waiver to use these cars on active freight corridors. *
TEXRail TEXRail is a hybrid rail (light rail with some features similar to commuter rail) line in Tarrant County, Texas, United States that provides service between downtown Fort Worth and Dallas/Fort Worth International Airport via Grapevine and other ...
in
Tarrant County, Texas Tarrant County is located in the U.S. state of Texas. As of 2020, it had a population of 2,110,640. It is Texas' third-most populous county and the 15th-most populous in the United States. Its county seat is Fort Worth. Tarrant County, one of 2 ...
is a commuter rail line operated by
Trinity Metro Trinity Metro is a transit agency located in and serving the city of Fort Worth, Texas and its suburbs in surrounding Tarrant County, part of the Dallas–Fort Worth metropolitan area. Since 1983, it was previously known officially as the Fort ...
which uses Stadler FLIRT DMUs. The vehicles are FRA Alternate Compliant. The line has 9 stops with termini at
DFW Airport Dallas/Fort Worth International Airport , also known as DFW Airport, is the primary international airport serving the Dallas–Fort Worth metroplex and the North Texas Region in the U.S. state of Texas. It is the largest hub for American Air ...
and
T&P Station Texas and Pacific Station, commonly known as T&P Station, is a terminal Trinity Railway Express and TEXRail commuter railroad station is located at 1600 Throckmorton Street in Fort Worth, Texas, on the south side of downtown. It is the current we ...
. *
NJ Transit New Jersey Transit Corporation, branded as NJ Transit, and often shortened to NJT, is a state-owned public transportation system that serves the U.S. state of New Jersey, along with portions of New York State and Pennsylvania. It operates bu ...
operates the River Line from
Camden, NJ Camden is a city in and the county seat of Camden County, in the U.S. state of New Jersey. Camden is part of the Delaware Valley metropolitan area and is located directly across the Delaware River from Philadelphia, Pennsylvania. At the 2020 U. ...
to
Trenton, NJ Trenton is the capital city of the U.S. state of New Jersey and the county seat of Mercer County. It was the capital of the United States from November 1 to December 24, 1784.Stadler GTW The Stadler GTW is an articulated railcar for local transport made by Stadler Rail of Switzerland. GTW stands for Gelenktriebwagen (articulated railcar). History The Biel–Täuffelen–Ins-Bahn near Bern, Switzerland was looking for a lighter ...
trains of one or two cars. The line is classified as light rail because it utilizes imported European made DMUs that do not meet
FRA A friar is a member of one of the mendicant orders founded in the twelfth or thirteenth century; the term distinguishes the mendicants' itinerant apostolic character, exercised broadly under the jurisdiction of a superior general, from the ol ...
crash guidelines. The cars may not operate with the
freight rail Rail freight transport is the use of railroads and trains to transport cargo as opposed to human passengers. A freight train, cargo train, or goods train is a group of freight cars (US) or goods wagons (International Union of Railways) hauled ...
service that shares the line, so evening operating hours are restricted to Saturday nights. This line currently carries over 7,500 passengers on a typical weekday, exceeding expectations. *
NCTD The North County Transit District (typically abbreviated as NCTD) is the agency responsible for public transportation in Northern San Diego County, California. The agency manages the COASTER commuter rail service between Oceanside and San Dieg ...
operates the Sprinter line using Desiro Classic DMUs built by
Siemens Siemens AG ( ) is a German multinational conglomerate corporation and the largest industrial manufacturing company in Europe headquartered in Munich with branch offices abroad. The principal divisions of the corporation are ''Industry'', '' ...
. Opened March, 2008, The line operates every half-hour daily, except limitations in the morning and at night on Saturday, Sunday and on holidays. The line runs from
Oceanside, CA Oceanside is a city on the South Coast (California), South Coast of California, located in San Diego County, California, San Diego County. The city had a population of 167,086 at the 2010 United States Census, 2010 census. The city is a popular ...
, where transfer is possible with
Coaster Coaster (stylized as COASTER) is a commuter rail service in the central and northern coastal regions of San Diego County, California, United States operated by the North County Transit District (NCTD). The commuter rail line features eight s ...
commuter rail Commuter rail, or suburban rail, is a passenger rail transport service that primarily operates within a metropolitan area, connecting commuters to a central city from adjacent suburbs or commuter towns. Generally commuter rail systems are con ...
service to
San Diego San Diego ( , ; ) is a city on the Pacific Ocean coast of Southern California located immediately adjacent to the Mexico–United States border. With a 2020 population of 1,386,932, it is the List of United States cities by population, eigh ...
, to
Escondido, CA Escondido is a city in San Diego County, California, United States. Located in the North County region, it was incorporated in 1888, and is one of the oldest cities in San Diego County. It has a population of 151,038 as of the 2020 census. Et ...
. Like the NJT River Line, it is classified as light rail due to the use of European made DMUs, but does not run at a more typical light rail frequency. * The
eBART eBART (East Contra Costa County BART extension) is the project name for a hybrid rail (light rail with some features similar to commuter rail) branch line of the Bay Area Rapid Transit (BART) system in eastern Contra Costa County, California, ...
expansion of the Bay Area Rapid Transit System implements
Stadler GTW The Stadler GTW is an articulated railcar for local transport made by Stadler Rail of Switzerland. GTW stands for Gelenktriebwagen (articulated railcar). History The Biel–Täuffelen–Ins-Bahn near Bern, Switzerland was looking for a lighter ...
diesel multiple unit train service from Pittsburg/Bay Point station east along the Highway 4 corridor to the town of Antioch. Future expansions in this direction could also connect the eBART service to Oakley, Brentwood, Byron, and beyond to Tracy and Stockton. The DMU system was chosen as a less-expensive alternative to the existing third-rail BART design. Service began on 25 May 2018. Proposed operations: * The
Los Angeles County Metropolitan Transportation Authority The Los Angeles County Metropolitan Transportation Authority (LACMTA), commonly branded as Metro, LA Metro, and L.A. Metro, is the state agency that plans, operates, and coordinates funding for most of the transportation system in Los Angele ...
approved an allocation of $250,000 for a feasibility study of DMUs for "future transportation options for the region" on 5 July 2006 (Ara Najarian, Metro Board Member). *
Chicago (''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name ...
's commuter rail line,
Metra Metra is the commuter rail system in the Chicago metropolitan area serving the city of Chicago and its surrounding suburbs via the Union Pacific Railroad, BNSF Railway, and other railroads. The system operates 242 stations on 11 rail lines. I ...
, is studying the use of DMUs on its newly proposed lines ( STAR line, SES). They claim these DMUs will have better acceleration, be more fuel efficient, and seat more customers than the current diesel locomotive and double decker rail cars that are currently in use. * Seattle area – The Central Puget Sound's regional transit agency
Sound Transit Sound Transit (ST), officially the Central Puget Sound Regional Transit Authority, is a public transit agency serving the Seattle metropolitan area in the U.S. state of Washington. It operates the Link light rail system in Seattle and Tacoma, r ...
, along with the
Puget Sound Regional Council The Puget Sound Regional Council (PSRC) is a metropolitan planning organization that develops policies and makes decisions about transportation planning, economic development, and growth management throughout the four-county Seattle metropolitan a ...
evaluated the feasibility of both DMU and diesel locomotive technology for operation in the Eastside BNSF Corridor in response to a state legislative request. The Eastside BNSF corridor runs from the City of Snohomish in the north to Renton in the south of the metro area. Sound Transit has no plans to operate passenger rail service in the eastside BNSF corridor, but has committed limited funds to provide capital improvements in the event another public or private operator proposes to operate the service. * Anchorage Mat-Su area – As part of a joint U.S. Forest Service (USFS) and ARRC Chugach Forest Whistle Stop project, a self-propelled rail car was purchased and delivered spring 2009. The diesel multiple unit (DMU) may be available for flexible demonstration service during winter months. * The
Long Island Rail Road The Long Island Rail Road , often abbreviated as the LIRR, is a commuter rail system in the southeastern part of the U.S. state of New York (state), New York, stretching from Manhattan to the eastern tip of Suffolk County, New York, Suffolk Co ...
, the busiest commuter railroad in the United States, is exploring the possibility of operating DMUs on some of its lesser traveled routes in non-electrified territory (on the Montauk, Greenport,
Port Jefferson Port Jefferson (informally known as "Port Jeff") is an incorporated village in the town of Brookhaven in Suffolk County, New York, on the North Shore of Long Island. Officially known as the Incorporated Village of Port Jefferson, the population ...
, and Oyster Bay branches), where operation of its current fleet of C3 bilevel railcars pulled by
DE30AC The EMD DE30AC and DM30AC are a class of 46 locomotives built between 1997–1999 by Electro-Motive Division in the Super Steel Plant in Schenectady, New York, for the Long Island Rail Road of the Metropolitan Transportation Authority (MTA) i ...
/
DM30AC The EMD DE30AC and DM30AC are a class of 46 locomotives built between 1997–1999 by Electro-Motive Division in the Super Steel Plant in Schenectady, New York, for the Long Island Rail Road of the Metropolitan Transportation Authority (MTA) i ...
locomotives is uneconomical and inefficient. *
Arrow An arrow is a fin-stabilized projectile launched by a bow. A typical arrow usually consists of a long, stiff, straight shaft with a weighty (and usually sharp and pointed) arrowhead attached to the front end, multiple fin-like stabilizers c ...
will utilize Stadler FLIRT trainsets along its service route in
Redlands, California Redlands ( ) is a city in San Bernardino County, California, United States. As of the 2020 census, the city had a population of 73,168, up from 68,747 at the 2010 census. The city is located approximately west of Palm Springs and east of Lo ...
. * A proposal to use DMUs on Boston's
Fairmount Line The Fairmount Line or Dorchester Branch is a line of the MBTA Commuter Rail system in Boston, Massachusetts, USA. Except for a short portion in Milton, it lies entirely within Boston, running southwest from South Station through the neighborh ...
was initially approved, but was canceled in 2016. *
New Jersey Transit New Jersey Transit Corporation, branded as NJ Transit, and often shortened to NJT, is a state-owned public transportation system that serves the U.S. state of New Jersey, along with portions of New York State and Pennsylvania. It operates bu ...
's Passaic–Bergen–Hudson Transit Project is studying the re-introduction passenger service on a portion of the
New York, Susquehanna and Western Railway The New York, Susquehanna and Western Railway (or New York, Susquehanna and Western Railroad and also known as the Susie-Q or the Susquehanna) is a Class II American freight railway operating over 400 miles (645 km) of track in th ...
(NYSW) right-of-way in Passiac,
Bergen Bergen (), historically Bjørgvin, is a city and municipality in Vestland county on the west coast of Norway. , its population is roughly 285,900. Bergen is the second-largest city in Norway. The municipality covers and is on the peninsula of ...
and
Hudson Hudson may refer to: People * Hudson (given name) * Hudson (surname) * Henry Hudson, English explorer * Hudson (footballer, born 1986), Hudson Fernando Tobias de Carvalho, Brazilian football right-back * Hudson (footballer, born 1988), Hudso ...
counties using newly built, FRA-compliant diesel multiple units. *
Dallas Area Rapid Transit Dallas Area Rapid Transit (DART) is a transit agency serving the Dallas–Fort Worth metroplex of Texas. It operates buses, light rail, commuter rail, and high-occupancy vehicle lanes in Dallas and twelve of its suburbs. In , the system had a ...
is rebuilding the Cotton Belt Rail Line as the Silver Line, which will utilize Stadler FLIRT units.


Asia/Australasia


Australia

DMUs were first introduced to Australia in the late mid-20th century for use on quiet branch lines that could not justify a locomotive hauled service. Today, DMUs are widely used throughout Australia's southern states: *
Adelaide Metro Adelaide Metro is the public transport system of Adelaide, the capital city of South Australia. It is an intermodal system offering an integrated network of bus, tram, and train service throughout the metropolitan area. The network has an ann ...
use 3000 class DMUs on their suburban network. *
NSW TrainLink NSW TrainLink is a train and coach operator in Australia, providing services throughout New South Wales and the Australian Capital Territory, along with limited interstate services into Victoria, Queensland and South Australia. Its primary interc ...
use Xplorer DMUs on services from
Sydney Sydney ( ) is the capital city of the state of New South Wales, and the most populous city in both Australia and Oceania. Located on Australia's east coast, the metropolis surrounds Sydney Harbour and extends about towards the Blue Mountain ...
to
Canberra Canberra ( ) is the capital city of Australia. Founded following the federation of the colonies of Australia as the seat of government for the new nation, it is Australia's largest inland city and the eighth-largest city overall. The ci ...
( ACT),
Griffith Griffith may refer to: People * Griffith (name) * Griffith (surname) * Griffith (given name) Places Antarctica * Mount Griffith, Ross Dependency * Griffith Peak (Antarctica), Marie Byrd Land * Griffith Glacier, Marie Byrd Land * Griffith Rid ...
,
Broken Hill Broken Hill is an inland mining city in the far west of outback New South Wales, Australia. It is near the border with South Australia on the crossing of the Barrier Highway (A32) and the Silver City Highway (B79), in the Barrier Range. It is ...
,
Armidale Armidale is a city in the Northern Tablelands, New South Wales, Australia. Armidale had a population of 24,504 as of June 2018. Estimated resident population, 30 June 2018. It is the administrative centre for the Northern Tablelands region. It ...
and Moree. Endeavour DMUs are used on services to Bathurst,
Moss Vale Moss Vale is a town in the Southern Highlands of New South Wales, Australia, in the Wingecarribee Shire. It is located on the Illawarra Highway, which connects to Wollongong and the Illawarra coast via Macquarie Pass. Moss Vale has several he ...
and
Goulburn Goulburn ( ) is a regional city in the Southern Tablelands of the Australian state of New South Wales, approximately south-west of Sydney, and north-east of Canberra. It was proclaimed as Australia's first inland city through letters pate ...
on the
Southern Highlands line The Southern Highlands Line is an Intercity rail service operated by NSW TrainLink that services the Macarthur, Southern Highlands and Southern Tablelands regions of New South Wales. First operating in 1869, the service runs from across the ...
,
Kiama Kiama () is a coastal town 120 kilometres south of Sydney in the Illawarra. One of the main tourist attractions is the Kiama Blowhole. Kiama features several popular surfing beaches and caravan parks, and numerous alfresco cafes and restaurants ...
to
Bomaderry Bomaderry (locally known as "Bommo") is a town in the Shoalhaven council district area of New South Wales, Australia. At the , it had a population of 8,718 people. It is on the north shore of the Shoalhaven River, across the river from Nowra, the ...
and on the
Hunter line The Hunter Line is a commuter train line operated by NSW TrainLink, running from Newcastle to Dungog and Scone in the New South Wales Hunter Region. It operates on the Newcastle, Main North and North Coast lines. Description of Route Hunter ...
. Hunter DMUs are also used on the
Hunter line The Hunter Line is a commuter train line operated by NSW TrainLink, running from Newcastle to Dungog and Scone in the New South Wales Hunter Region. It operates on the Newcastle, Main North and North Coast lines. Description of Route Hunter ...
. * Victoria's
V/Line V/Line is a statutory authority that operates regional passenger train and coach services in Victoria, Australia. It provides passenger train services on five commuter lines and eight long-distance routes from its major hub at Southern Cross ...
uses Sprinter and V/Locity DMUs on all medium distance services. * Western Australia's
Transwa Transwa is Western Australia's regional public transport provider, linking 240 destinations, from Kalbarri in the north to Augusta in the south west to Esperance in the south east. The Transwa system provides transport to the major regional ...
operates the ''
Prospector Prospector may refer to: Space exploration * Prospector (spacecraft), a planned lunar probe, canceled in 1962 * '' Lunar Prospector'', a NASA spacecraft Trains * Prospector (train), a passenger train operated by the Denver & Rio Grande Western ...
,
AvonLink The ''AvonLink'' is a rural passenger train service in Western Australia operated by Transwa between Midland and Northam. History The consideration of revitalising passenger services in 1993 saw the ''Avonlink Ministerial Committee'' formed ...
'' and ''
Australind Australind is a town in Western Australia, located 12 km north-east of Bunbury's central business district. Its local government area is the Shire of Harvey. At the 2016 census, Australind had a population of 14,539. History Prior to Eur ...
'' on medium and long distance country services. In Queensland, heritage DMUs are used on the ''
Savannahlander The Savannahlander is an Australian passenger train service (primarily serving tourists) that operates in Far North Queensland. It travels on the Tablelands railway line and the Etheridge railway line from the coastal city of Cairns to Forsay ...
'' and ''
Gulflander The ''Gulflander'' is a passenger train operated by Queensland Rail on the isolated Normanton to Croydon line in the Gulf Country of northern Queensland, Australia. History Steam locomotives were used until 1929. By that stage railmoto ...
'' tourist trains.


Bangladesh

Chinese manufactured (CNR Tangshan) DEMU was introduced in Bangladesh from 25 May 2013. DEMU is the country's first-ever commuter train service starting its journey on the Chittagong–Fouzdarhat line. These DEMUs also operate on the
Chittagong Circular Railway Chittagong Circular Railway is a suburban railway system in the city of Chittagong in Bangladesh to ameliorate the commuters' suffering and improve traffic situation in the city. The construction was complete by February 2013 and it became operatio ...
and on the
Bangladesh Railway Bangladesh Railway ( bn, বাংলাদেশ রেলওয়ে) is the state-owned rail transport agency of Bangladesh. It operates and maintains all railways in the country, and is overseen by the Directorate General of Bangladesh Ra ...
's service between
Dhaka Dhaka ( or ; bn, ঢাকা, Ḍhākā, ), formerly known as Dacca, is the capital and largest city of Bangladesh, as well as the world's largest Bengali-speaking city. It is the eighth largest and sixth most densely populated city ...
and
Narayanganj Narayanganj ( bn, নারায়ণগঞ্জ ''Naraeongônj'') is a city in central Bangladesh. It is in the Narayanganj District, about southeast of the capital city of Dhaka, and has a population of about 2 million. It is the 6th larges ...
.


Cambodia

Mexican manufacturer Ferrovias Del Bajio supplied in 2019, three DSUs (Diesel Single Unit) to Royal Railway in Cambodia for their airport shuttle service from Phnom Penh international airport to the city central station. The other two units were assigned to long-distance services from the central station to Sihanoukville and to Poipet.


India

DMUs (DEMUs) are widely used in India. DEMUs in India are used in both the eight-coach format and the four-coach format. These trains replaced many (up to 10 car) trains with a WDM-2 or WDM-3A locomotive in the middle. These old trains had the loco controls duplicated in the Driving Trailer coach and all the actuation information reaching the locomotive through thin communication lines. This was called 'push-pull train'. The longest running such push-pull service operated between Diva - Bhiwandi Road and Vasai Road and was recently converted into an MEMU train service in 2018. India's first and largest DMU shed at
Jalandhar Jalandhar is the third most-populous city in the Indian state of Punjab and the largest city in Doaba region. Jalandhar lies alongside the Grand Trunk Road and is a well-connected rail and road junction. Jalandhar is northwest of the state ...
, Punjab, holds more than 90 units placed in service all over Punjab. First generation DMU: Rated power was 700 HP and had three or six coaches, made first by ICF. Transmission was Voith-hydraulic. Max speed 100 km/h. Second generation DMU: Rated power is ,1400 HP and have eight coaches. Max speed is 105 km/h. Transmission is DC electric. Made at HCF and RCF. Third generation DMU: Rated power is 1,600 HP and have ten coaches. Max speed is 110 km/h. Transmission is AC electric. Made at ICF.


Indonesia

State-owned company PT.INKA builds several type of DMU, some of which operate in urban and suburban areas: *
Kualanamu Airport Rail Link Kualanamu Airport Railink Services (ARS) ( id, KA Bandara Kualanamu) is an airport rail link service in Medan in North Sumatra, Indonesia. The rail link is built to cut travel time from Medan railway station to Kualanamu International Airport, as r ...
*
Minangkabau Airport Rail Link Minangkabau Express ( id, KA Minangkabau Ekspres) is an airport rail link service in West Sumatra, Indonesia. This line was built to cut travel time from Padang city centre to the Minangkabau International Airport in Padang Pariaman Regency, as r ...
* Adisumarmo Airport Rail Link * Kedungsepur * Sri Lelawangsa *
Prambanan Express Prambanan Express ( id, Prambanan Ekspres), commonly abbreviated as Pramex (in English) and Prameks (in Indonesian) is a commuter rail service that operates between Yogyakarta, Special Region of Yogyakarta and Kutoarjo, Purworejo Regency, Centra ...
* Kertalaya Railbus * Bathara Kresna Railbus


Japan

In Japan, where gasoline-driven railbuses (on small private lines) and railmotors ( Kihani 5000 of the national railways) had been built since the 1920s, the first two streamlined DMUs came in service in 1937, class Kiha 43000 (キハ43000系). The service of several hundreds (in sum even thousands) of diesel railcars and DMUs started in 1950s following the improvement of fuel supply that was critical during
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
.


Kenya

In 2021, Kenya acquired DMUs from France to operate in the Nairobi Metropolitan Area. These trains connect the city with settlements outside Nairobi, Jomo Kenyatta International Airport and the Nairobi Terminus.


Malaysia

The
Keretapi Tanah Melayu Keretapi Tanah Melayu Berhad (KTMB) (Jawi: كريتاڤي تانه ملايو برحد) or Malayan Railways Limited is the main rail operator in Peninsular Malaysia. The railway system dates back to the British colonial era, when it was firs ...
(KTM) has a total of 13 DMU
KTM Class 61 The KTM Class 61 is a diesel multiple unit operated by Keretapi Tanah Melayu for KTM Intercity services on non electrified sections of the KTM West Coast railway line and the KTM East Coast railway line. Background The idea of using DMUs is not ...
ordered from
CRRC CRRC Corporation Limited (known as CRRC) is a Chinese state-owned and publicly traded rolling stock manufacturer. It is the world's largest rolling stock manufacturer in terms of revenue, eclipsing its major competitors of Alstom and Siemens. It ...
for the West Coast Line and are assembled locally at CRRCs Batu Gajah factory from 2016 to 2020. The first scheduled service is expected from 1 September along the Gemas-Johor Bahru route, replacing old non-automotive stock.


Philippines

The
Philippine National Railways The Philippine National Railways (PNR) ( fil, Pambansang Daang-Bakal ng Pilipinas and es, Ferrocarril Nacional de Filipinas) is a state-owned railway company in the Philippines which operates one commuter rail service between Metro Manila an ...
(PNR) was one of the first adopters of diesel multiple unit trains in Asia. Initially built as gasoline-powered railmotors, the locally assembled Manila Railroad RMC class of 1929 was the first to be powered by diesel traction. Some units were also converted to
streamliner A streamliner is a vehicle incorporating wikt:streamline, streamlining in a shape providing reduced air resistance. The term is applied to high-speed railway trainsets of the 1930s to 1950s, and to their successor "High-speed rail, bullet trai ...
units by 1932 for first-class services on the South Main Line between Manila and
Legazpi, Albay Legazpi, officially the City of Legazpi ( bcl, Siyudad nin Legazpi; fil, Lungsod ng Legazpi), is a 1st class component city and capital of the province of Albay, Philippines. According to the 2020 census, it has a population of 209,533. Legazpi ...
. Since then, generations of DMUs were used chiefly for short-distance commuter services by the PNR in the island of
Luzon Luzon (; ) is the largest and most populous island in the Philippines. Located in the northern portion of the Philippines archipelago, it is the economic and political center of the nation, being home to the country's capital city, Manila, as ...
. Even without active
inter-city rail Inter-city rail services are express passenger train services that run services that connect cities over longer distances than commuter or regional trains. There is no precise definition of inter-city rail; its meaning may vary from country ...
services in the present-day, DMUs are still used on the
PNR Metro Commuter Line The PNR Metro Commuter Line is a commuter rail line operated by the Philippine National Railways. It was first inaugurated as the Metro Manila Commuter Service in 1970, and originally served the North Main Line and the South Main Lines, as w ...
in
Metro Manila Metropolitan Manila (often shortened as Metro Manila; fil, Kalakhang Maynila), officially the National Capital Region (NCR; fil, link=no, Pambansang Punong Rehiyon), is the capital region, seat of government and one of three List of metrop ...
and the Bicol Commuter service in the
Bicol Region Bicol, known formally as the Bicol Region or colloquially as Bicolandia ( bcl, Rehiyon kan Bikol; Rinconada Bikol: ''Rehiyon ka Bikol''; Waray Sorsogon, Masbateño: ''Rehiyon san Bikol''; tl, Rehiyon ng Bikol), is an administrative region of ...
. Three generations of DMUs are in use: second-hand DMUs handed over by
JR East The is a major passenger railway company in Japan and is the largest of the seven Japan Railways Group companies. The company name is officially abbreviated as JR-EAST or JR East in English, and as in Japanese. The company's headquarters are ...
such as the
KiHa 35 The , along with the similar KiHa 30 and KiHa 36 series, are Japanese diesel multiple unit (DMU) train types formerly operated by the Japanese National Railways (JNR) and JR Group of companies, and later operated by the private railway operator ...
, 52 and 59 series originally built in the 1960s and acquired in the early 2010s, the Rotem DMUs of 2009 built by
Korean Korean may refer to: People and culture * Koreans, ethnic group originating in the Korean Peninsula * Korean cuisine * Korean culture * Korean language **Korean alphabet, known as Hangul or Chosŏn'gŭl **Korean dialects and the Jeju language ** ...
manufacturer
Hyundai Rotem Hyundai Rotem (founded in 1977) is a South Korean company that manufactures rolling stock, defense products and plant equipment. It is a part of the Hyundai Motor Group. Its name was changed from Rotem to Hyundai Rotem in December 2007 to refl ...
, and the 8000 and 8100 classes built by
Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...
n firm
PT INKA PT Industri Kereta Api (Persero), abbreviated as INKA, is a state owned rolling stock manufacturer. Profile INKA Ltd was established in 1981 to serve as the national rail locomotive and rolling stock manufacturer for the Indonesian Railway ...
. From 2022 onwards, the PNR will purchase
standard gauge A standard-gauge railway is a railway with a track gauge of . The standard gauge is also called Stephenson gauge (after George Stephenson), International gauge, UIC gauge, uniform gauge, normal gauge and European gauge in Europe, and SGR in Ea ...
DMUs for its upcoming inter-city rail network in Luzon and
Mindanao Mindanao ( ) ( Jawi: مينداناو) is the second-largest island in the Philippines, after Luzon, and seventh-most populous island in the world. Located in the southern region of the archipelago, the island is part of an island group of ...
. This is compared to the 3 ft 6 in gauge of the rolling stock that is currently in active service. This move should allow access to better technology and increase line speeds.


South Korea

Korail The Korea Railroad Corporation (Korean: 한국철도공사, Hanja: ), branded as KORAIL (코레일, officially changed to in November 2019), is the national railway operator in South Korea. Currently, KORAIL is a public corporation, managed ...
operates many DMUs. The DHC (Diesel Hydraulic Car), which made its debut for the 1988 Seoul Olympics, can reach speeds up to and serves
Saemaul-ho The Saemaeul-ho, formerly known as the Saemaul-ho and Saemaul Express, is a class of train operated by Korail, the national railroad of South Korea, since February 8, 1969. Before the introduction of the KTX express trains, the Saemaeul-ho w ...
trains.


Sri Lanka

DMUs were first introduced to
Sri Lanka Sri Lanka (, ; si, ශ්‍රී ලංකා, Śrī Laṅkā, translit-std=ISO (); ta, இலங்கை, Ilaṅkai, translit-std=ISO ()), formerly known as Ceylon and officially the Democratic Socialist Republic of Sri Lanka, is an ...
in 1940. The aim of this was connecting minor railway stations and stops on the main line where most express trains don't have a halt.


Taiwan

The DMUs are now usually used on the
Taiwan Railway Administration Taiwan Railways Administration (TRA) is a railway operator in Taiwan. It is an agency of the Ministry of Transportation and Communications, responsible for managing, maintaining, and running conventional passenger and freight railway services ...
Hualien–Taitung Line Hualien or Hualian may refer to: Places *Hualien County (Chinese: 花蓮 "lily"), Taiwan Province, Taiwan **Hualien Airport **Hualien railway station *Hualien City, a port city and the seat of Hualien County **Hualien Stadium * Hualien River (花 ...
,
North-Link Line The North-Link Line () is the central section of the Eastern Line of the Taiwan Railways Administration. The length of its mainline is 79.2 km, and there is a 7.4 km long branch between Beipu and Hualien Port. History The high mountai ...
,
South-Link Line The South-link line () is a line of the Taiwan Railways Administration running across the southern tip of the island of Taiwan, connecting the eastern and western coasts. It is 98.2 km long, of which 81.4 km is single-track. The secti ...
. DMUs in Taiwan are classified as Class DR. * Class DR2700 – built by
Tokyu Car Corporation Tokyu may refer to: * Tokyu Group, a group of companies centered on Tokyu Corporation ** Tokyu Corporation, a Japanese railway company, the largest member and parent company of the group ** Tokyu Car Corporation, a former Japanese railway vehicle m ...
in 1966; was the fastest train on the West Coast line *Class DR2800 – built by Tokyu Car Corporation in 1982 and 1984 *Class DR2900 *Class DR3000 *Class DR3100


Manufacturers

DMU manufacturers include: *
Alstom Alstom SA is a French multinational rolling stock manufacturer operating worldwide in rail transport markets, active in the fields of passenger transportation, signalling, and locomotives, with products including the AGV, TGV, Eurostar, Avelia ...
*
AnsaldoBreda Hitachi Rail Italy S.p.A. is a multinational rolling stock manufacturer company based in Pistoia, Italy. Formerly AnsaldoBreda S.p.A., a subsidiary of state-owned Finmeccanica, the company was sold in 2015 to Hitachi Rail of Japan. After the dea ...
, Italy *
BEML BEML Limited, formerly Bharat Earth Movers Limited, is an Indian Public Sector Undertaking, headquartered in Bengaluru, Karnataka, India. It manufactures a variety of heavy equipment, such as that used for earth moving, railways, transport and ...
, India *
BHEL Bharat Heavy Electricals Limited (BHEL) is an Indian central public sector undertaking. It is under the ownership of Ministry of Heavy Industries, Government of India. It is based in New Delhi, India. Established in 1956, BHEL is India ...
, India *
Bombardier Transportation Bombardier Transportation was a Canadian-German rolling stock and rail transport manufacturer, headquartered in Berlin, Germany. It was one of the world's largest companies in the rail vehicle and equipment manufacturing and servicing industry ...
of
Montreal Montreal ( ; officially Montréal, ) is the List of the largest municipalities in Canada by population, second-most populous city in Canada and List of towns in Quebec, most populous city in the Provinces and territories of Canada, Canadian ...
, Canada *
British Rail Engineering Limited British Rail Engineering Limited (BREL) was the railway systems engineering subsidiary of British Rail. Established in 1970, the maintenance arm was split as British Rail Maintenance Limited in 1987, and the design and building of trains was pr ...
, United Kingdom (1962-1980s) *
British Rail British Railways (BR), which from 1965 traded as British Rail, was a state-owned company that operated most of the overground rail transport in Great Britain from 1948 to 1997. It was formed from the nationalisation of the Big Four British rai ...
ways, United Kingdom (1950s–1962) *
Budd Company The Budd Company was a 20th-century metal fabricator, a major supplier of body components to the automobile industry, and a manufacturer of stainless steel passenger rail cars, airframes, missile and space vehicles, and various defense products ...
of
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
* CAF *
Colorado Railcar Colorado Railcar was a manufacturer of railroad rolling stock—railcars and diesel multiple unit commuter vehicles. Both products came in single- and double-level versions. It shut down in 2008, with its assets being purchased by US Railcar. His ...
, US (Rader Railcar 1988–1997, Colorado Railcar 1997–2008, US Railcar 2009– ) *
DMZ A demilitarized zone (DMZ or DZ) is an area in which treaties or agreements between nations, military powers or contending groups forbid military installations, activities, or personnel. A DZ often lies along an established frontier or bounda ...
, Russia * EIKON International * Ferrovias Del Bajio S.A. de C.V., Mexico * Ganz-MÁVAG, Hungary *
Hyundai Rotem Hyundai Rotem (founded in 1977) is a South Korean company that manufactures rolling stock, defense products and plant equipment. It is a part of the Hyundai Motor Group. Its name was changed from Rotem to Hyundai Rotem in December 2007 to refl ...
of
Seoul Seoul (; ; ), officially known as the Seoul Special City, is the capital and largest metropolis of South Korea.Before 1972, Seoul was the ''de jure'' capital of the Democratic People's Republic of Korea (North Korea) as stated iArticle 103 ...
, South Korea * INKA, Indonesia *
Integral Coach Factory Integral Coach Factory (ICF) is a manufacturer of ICF coach, rail coaches located in Perambur, Chennai, Tamil Nadu, India. It was established in 1955 and is owned and operated by the Indian Railways. It is located in Perambur, in the suburbs of ...
,
Chennai Chennai (, ), formerly known as Madras ( the official name until 1996), is the capital city of Tamil Nadu, the southernmost Indian state. The largest city of the state in area and population, Chennai is located on the Coromandel Coast of th ...
, India * Luganskteplovoz, Ukraine *
Materfer Materfer (an acronym for Material Ferroviario S.A.) is an Argentine manufacturer of railway and road vehicles, located in the city of Ferreyra in Córdoba Province. The company was established by Fiat Concord in the late 1950s, being its subsidi ...
, Argentina *
Metrovagonmash Metrowagonmash, also Metrovagonmash (russian: ОАО "Метровагонмаш", OAO "Metrovagonmash"), is an engineering company in Mytishchi, Russia. Metrowagonmash (MWM) is one of the leading enterprises in Russia operating in the f ...
, Russia *
Niigata Transys is a Japanese railway vehicle and equipment manufacturer based in Chiyoda, Tokyo. The company is a subsidiary of IHI Corporation and has a factory in Niigata, and representative offices in Osaka, Sapporo, Sendai, and Niigata. Products Low-f ...
of
Tokyo Tokyo (; ja, 東京, , ), officially the Tokyo Metropolis ( ja, 東京都, label=none, ), is the capital and largest city of Japan. Formerly known as Edo, its metropolitan area () is the most populous in the world, with an estimated 37.468 ...
, Japan *
Nippon Sharyo , formed in 1896, is a major rolling stock manufacturer based in Nagoya, Japan. In 1996, it abbreviated its name to "日本車両" Nippon Sharyō. Its shortest abbreviation is Nissha "日車". It was a listed company on Nikkei 225 until 2 ...
/
Sumitomo The is one of the largest Japanese ''keiretsu'', or business groups, founded by Masatomo Sumitomo (1585-1652) around 1615 during the early Edo period. History The Sumitomo Group traces its roots to a bookshop in Kyoto founded circa 1615 by Masa ...
, Japan *
Pojazdy Szynowe Pesa Bydgoszcz Pesa (Pojazdy Szynowe Pesa Bydgoszcz) is a Polish company manufacturing railway vehicles based in Bydgoszcz. The name 'Pesa' derives from the initials PS which stand for ''Pojazdy Szynowe,'' 'railway vehicles' in Polish. Pesa is a successor ...
* RVR, Latvia *
Siemens Mobility Siemens Mobility GmbH is a separately-managed company of Siemens, arising from a corporate restructuring effective 1 August 2018. With its global headquarters in Munich, Siemens Mobility has four core business units: Mobility Management, dedi ...
DMU * Srida, China *
Stadler Rail Stadler Rail is a Swiss manufacturer of railway rolling stock, with an emphasis on regional train multiple units and trams. It is also focused on niche products, such as being one of the last European manufacturers of rack railway rolling stock ...
of
Bussnang Bussnang is a municipality in the district of Weinfelden in the canton of Thurgau in Switzerland. History Bussnang may be first mentioned in 822 as ''Pussinwanc''. During the Early Middle Ages, the Abbey of St. Gall owned much of the land aro ...
, Switzerland * Torzhoksky car-building factory, Russia *
TÜVASAŞ Turkish Wagon Industry, Inc. ( tr, Türkiye Vagon Sanayi Anonim Şirketi), more commonly known as TÜVASAŞ, is a railcar manufacturer based in Adapazarı. TÜVASAŞ is responsible for the construction, refurbishment and repair of railcars for the ...
of
Adapazarı Adapazarı () is a city in northwestern Turkey and the central district of Sakarya Province. The province itself was originally named Adapazarı as well. Adapazarı is a part of the densely populated region of the country known as the Marmara Regi ...
, Turkey


See also

*
Electric multiple unit An electric multiple unit or EMU is a multiple-unit train consisting of self-propelled carriages using electricity as the motive power. An EMU requires no separate locomotive, as electric traction motors are incorporated within one or a numbe ...
*
Battery electric multiple unit A battery electric multiple unit (BEMU), battery electric railcar or accumulator railcar is an electrically driven multiple unit or railcar whose energy is derived from rechargeable batteries driving the traction motors. Prime advantages of these ...
*
Diesel locomotive A diesel locomotive is a type of railway locomotive in which the prime mover is a diesel engine. Several types of diesel locomotives have been developed, differing mainly in the means by which mechanical power is conveyed to the driving whee ...


References

{{DEFAULTSORT:Diesel Multiple Unit Multiple units fr:Rame automotrice#Élément automoteur diesel