The InterRegio is a train
A train is a connected series of vehicles for rail transport that move along a track to transport cargo or passengers from one place to another place. The track usually consists of two rails, but might also be a monorail or maglev guideway.Propulsion for the train is provided by a separate...

 service seen in some Europe
Europe is, by convention, one of the world's seven continents. Comprising the westernmost peninsula of Eurasia, Europe is generally 'divided' from Asia to its east by the watershed divides of the Ural and Caucasus Mountains, the Ural River, the Caspian and Black Seas, and the waterways connecting...

an countries. Mostly they are trains that run "from region to region", as best described by Swiss Federal Railways
Swiss Federal Railways and SFR are not in official use) is the national railway company of Switzerland headquartered in Bern. Formerly a government institution, it is since 1999 a special stock corporation with all shares held by the Swiss Confederation or the Swiss cantons...



The InterRegio in Switzerland was first introduced in 1997. They replaced some of the former fast trains with their own identity (InterRegio).

InterRegio trains are now very commonplace in Switzerland. The abbreviation is IR in a 45°-edgy font, white letters on red.

The ICN runs as an InterCity
InterCity is the classification applied to certain long-distance passenger train services in Europe...

 train but sometimes with halt frequencies in the same manner as an IR (Geneva
Geneva In the national languages of Switzerland the city is known as Genf , Ginevra and Genevra is the second-most-populous city in Switzerland and is the most populous city of Romandie, the French-speaking part of Switzerland...

Lausanne is a city in Romandy, the French-speaking part of Switzerland, and is the capital of the canton of Vaud. The seat of the district of Lausanne, the city is situated on the shores of Lake Geneva . It faces the French town of Évian-les-Bains, with the Jura mountains to its north-west...

-St. Gallen
St. Gallen
St. Gallen is the capital of the canton of St. Gallen in Switzerland. It evolved from the hermitage of Saint Gall, founded in the 7th century. Today, it is a large urban agglomeration and represents the center of eastern Switzerland. The town mainly relies on the service sector for its economic...

Basel or Basle In the national languages of Switzerland the city is also known as Bâle , Basilea and Basilea is Switzerland's third most populous city with about 166,000 inhabitants. Located where the Swiss, French and German borders meet, Basel also has suburbs in France and Germany...

 route) and sometimes as IC trains (Basel
Basel or Basle In the national languages of Switzerland the city is also known as Bâle , Basilea and Basilea is Switzerland's third most populous city with about 166,000 inhabitants. Located where the Swiss, French and German borders meet, Basel also has suburbs in France and Germany...

Chiasso is a municipality in the district of Mendrisio in the canton of Ticino in Switzerland.As the southernmost of Switzerland's municipalities, Chiasso is located at the border with Italy, in front of Ponte Chiasso...

). When ICN services first began on May 28, 2000, the ICN was placed as an InterRegio train.


InterRegio trains were also commonplace in Germany from 1988 to 2003. They liaised mainly between regions in Germany. Most of the InterRegio lines have been replaced by InterCity
Intercity (Deutsche Bahn)
Intercity is the second-highest train classification in Germany, after the ICE. Intercity services are loco-hauled express services, usually over long-distances. There are Intercity routes throughout Germany, and routes generally operate with a two-hour frequency, with multiple routes giving a more...

 lines, others have been replaced by the newly established Interregio-Express
The Interregio-Express is a local public transport railway service operated by the Deutsche Bahn which is only available in the German states of Baden-Württemberg, Bavaria, Saxony, Saxony-Anhalt and Berlin as well as in Switzerland...

 type. However, Interregio-Express lines belong technically to the short distance train category, and tend to be shorter.


The InterRegio system was also introduced to the Danish railways in the early 90's and became an alternative to the InterCity services, with no seat reservation required.
However, unlike other countries, InterRegio trains in Denmark only operates on Fridays and Sundays, to support the heavy flow of passengers that travel on those days. These InterRegio services also have fewer stops than the InterCity services, which goes against the original InterRegio concept of long-distance trains with more local stops.
There are no specific rules for the composition for these trains, and both old and new material has been used for InterRegio services.


In Poland, interREGIO trains were introduced by Przewozy Regionalne (PR) in spring of 2009, the first IR train connecting Białystok with Warsaw
Warsaw is the capital and largest city of Poland. It is located on the Vistula River, roughly from the Baltic Sea and from the Carpathian Mountains. Its population in 2010 was estimated at 1,716,855 residents with a greater metropolitan area of 2,631,902 residents, making Warsaw the 10th most...

. The fare is much lower than TLK-branded fast trains of PKP Intercity
PKP Intercity
PKP Intercity is a company of PKP Group responsible for long-distance passenger transport. It runs about 350 trains daily, connecting mainly large aglomerations and smaller towns, also servicing most of the international trains....


In the beginning these trains operated mostly on Fridays and Sundays along the routes: Wrocław-Kraków
Kraków also Krakow, or Cracow , is the second largest and one of the oldest cities in Poland. Situated on the Vistula River in the Lesser Poland region, the city dates back to the 7th century. Kraków has traditionally been one of the leading centres of Polish academic, cultural, and artistic life...

, Kraków-Przemyśl
Przemyśl is a city in south-eastern Poland with 66,756 inhabitants, as of June 2009. In 1999, it became part of the Podkarpackie Voivodeship; it was previously the capital of Przemyśl Voivodeship....

, Poznań
Poznań is a city on the Warta river in west-central Poland, with a population of 556,022 in June 2009. It is among the oldest cities in Poland, and was one of the most important centres in the early Polish state, whose first rulers were buried at Poznań's cathedral. It is sometimes claimed to be...

Olsztyn is a city in northeastern Poland, on the Łyna River. Olsztyn has been the capital of the Warmian-Masurian Voivodeship since 1999. It was previously in the Olsztyn Voivodeship...

, Poznań-Warsaw and Bydgoszcz-Warsaw. Since June 2009 there are more interREGIO trains on routes; most of them are available through the whole week, some of them only on weekends. More routes were introduced, some of them especially made for students, like Kielce
Kielce ) is a city in central Poland with 204,891 inhabitants . It is also the capital city of the Świętokrzyskie Voivodeship since 1999, previously in Kielce Voivodeship...

Częstochowa is a city in south Poland on the Warta River with 240,027 inhabitants . It has been situated in the Silesian Voivodeship since 1999, and was previously the capital of Częstochowa Voivodeship...


InterREGIO in Poland mostly uses older electric multiple unit
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 number of the carriages...

s (usually ED72
PKP class ED72
The ED72 is a Polish four-car, long distance EMU operated by Przewozy Regionalne . Like its cousin , the ED72 is based on the EN57 and became the basis for its successor: the ED73.-History:...

, EN71
PKP class EN71
The EN71 is a four-carriage Polish EMU constructed for the Polish National Railways and is based on the three-carriage EN57, but differs in that it has an additional motor carriage.-History:...

 and EN57
PKP class EN57
EN57 is an electric multiple unit used by the Polish railway operator . It was built for suburban and long-distance services. Presently it is used by Przewozy Regionalne, Szybka Kolej Miejska and Koleje Mazowieckie companies.-History:...

), with newer units on some routes (ED73
PKP class ED73
The ED73 is a Polish four-car, long distance EMU operated by Polish National Railways , based on the ED72.-History:Only one unit was built at the Pafawag factory in 1997 and as a prototype at that. Until 2005, ED73-001 was operated by Wielkopolski Zakład Przewozów Regionalnych...

 and ED59 between Warsaw and Łódź, 14WE
14WE is an electric multiple unit produced by Newag in Nowy Sącz, Poland. It is a heavily modified version of the PKP class EN57 EMU, of early-1960s vintage....

 between Kraków and Warsaw). Some IR trains are serviced with single- and/or double-decker cars and locomotives.

, all IR trains in Poland are second class-only, even though PR's regulations include a first-class fare for interREGIO trains and in service are first-class coaches, yet declassified.


The InterRégió trains were introduced in Hungary on 13 December 2009. InterRégió trains run mainly on regional lines, but their function is national as well. The trains operate along the lines Sárbogárd
Sárbogárd is a town in Fejér county, Hungary. The town is at the intersection of important railroad routes in Hungary: this is where electrified routes from Balaton and Pécs merge with non-electrifed railways from Baja and Szekszárd...

Szekszárd is a city in Hungary and the capital of Tolna county. By population, Szekszárd is the smallest county capital in Hungary; by area, it is the second smallest -Location:...

Baja, Hungary
Baja is a city in , southern Hungary. It is the second largest city in the county, after the county seat at Kecskemét, and is home to around 37,000 people....

 and Kecskemét
Kecskemét is a city in the central part of Hungary. It is the 8th largest city of the country, and the county seat of Bács-Kiskun.Kecskemét lies halfway between the capital Budapest and the country's third-largest city, Szeged, 86 kilometres from both of them and almost equal distance from the two...

- External links :*...

. InterRégió trains use air-conditioned MÁV 6341 DMU
Diesel multiple unit
A diesel multiple unit or DMU is a multiple unit train consisting of multiple carriages powered by one or more on-board diesel engines. They may also be referred to as a railcar or railmotor, depending on country.-Design:...

-s which were built by the Russian Metrovagonmash.
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