The Vienna U-Bahn (German: U-Bahn Wien), where U-Bahn is an abbreviation of the German term Untergrundbahn (English: underground railway), is a rapid transit system serving Vienna, Austria. With the September 2017 opening of the 4.6-kilometer (2 mi 69 ch), five-station extension of the U1 line, the five-line U-Bahn network consists of 83.1 kilometers (51 mi 51 ch) of route, serving 109 stations. It is the backbone of one of the best performing public transport systems worldwide according to UITP (International Association of Public Transport) 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. More information...
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