page_title: Vienna U-Bahn
section_title: U/U1/U2 class
hierarchical_section_title: Vienna U-Bahn / Rolling stock / U/U1/U2 class
caption_attribution_description: U1-Station Alte Donau
context_page_description: The Vienna U-Bahn, where U-Bahn is an abbreviation of the German term Untergrundbahn, is one of the two rapid transit systems for Vienna, Austria. The second system is the Vienna S-Bahn. With the September 2017 opening of the 4.6 kilometers, five-station extension of the U1 line, the five-line U-Bahn network consists of 83.1 kilometers of route, serving 109 stations. It is the backbone of one of the best performing public transport systems worldwide according to UITP in June 2009. More than 1.3 million passengers rode the Vienna U-Bahn every day in 2009, and 567.6 million passengers used the U-Bahn in 2011, which declined to 428.8 million passengers in 2013. The network is undergoing expansion and rolling stock renewal. Since 1969, 200 million euros have been invested annually in the extension of the Vienna U-Bahn.
  The modern U-Bahn opened on 25 February 1978, but two of the lines extended and later designated as U-Bahn date back to the Stadtbahn system, which opened in 1898. Parts of the U2 and U6 lines began as subway tunnels built to accommodate earlier tram lines. Only the U1 and U3 were built wholly as new subway lines.
context_section_description: The first cars of the type U, developed by Simmering-Graz-Pauker (SGP) were delivered in 1972. The smallest unit is a two-axle motorcars, 36.8 metres long and 2.8 metres wide, permanently coupled twin railcar. A train is made up of three double cars. By 2008, short-haul trains with two double-wagons were used during downtimes or on the U2 line. Technically, the cars are very similar to the Munich and Nuremberg subway trains. However, there are significant differences in the award-winning car design. By 1982, a total of 135 double railcars Type U were delivered, but are now retired.
  From 1987 SGP supplied with the type U1 (later referred to as U11), a second generation, which looks like its predecessor outwardly. The technical equipment has been further developed and includes water-cooled three-phase motors, brakes with energy recovery and modernized emergency braking and safety equipment. In the years 2000 to 2010 trains of the later type series of the type U were rebuilt and equipped with new three-phase motors, which should extend their life for another 20 years. The converted trains are called Type U2. These vehicles operate on the lines U2 and U3.
  The interior of a car consists of eight pairs of vis-à-vis seats in the middle section, nine seats on the driverless ends and two pairs of seats opposite each other in the opposite end of the car. In 2006, the U1 and U2 LED displays replaced the original in-and-out illuminated telltale displays. In addition, the trains will gradually be retrofitted with plastic seats, video surveillance and warning lights to signal the door closing operation. At Type U, no such conversions are made because the vehicles are successively scanned. An individual railcar has 49 seats and 91 standing places. In a train consisting of three double railcars, this is 294 seats and 546 standing places. The maximum speed is 80 km / h. The design of the "Silver Arrows" trimmings comes from the railway designer Johann Benda.
caption: Type U1 crossing the "Alte Donau" (Old Danube)
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