The Dresden S-Bahn is a network of S-Bahn-type commuter train services in Dresden and the surrounding area. It is commissioned by Verkehrsverbund Oberelbe (VVO) from DB Regio Verkehrsbetrieb Südostsachsen and currently consists of three services operating over a network. The S-Bahn fare structure was introduced on a series of suburban railway lines on 29 September 1974. The term "S-Bahn" has only officially been used for the system since 31 May 1992. Since 24 May 1998, VVO fares have been valid for the S-Bahn Dresden. Outside of Dresden, it runs to the centres of Freital, Meissen, Pirna, Radebeul and since 9 December 2007 also to Freiberg. All lines stop at Dresden Hauptbahnhof. According to data from the Deutsche Bahn, the Dresden S-Bahn is the S-Bahn with the highest customer satisfaction in Germany. Rolling stock Services are operated by double-deck-push–pull trains. All trains have 1st and 2nd. class. As with other S-Bahn services operated by Deutsche Bahn, trains are marked " Bahn Dresden ." From 16 July 2007, 53 new double-deck cars (13 control and 40 middle cars) were gradually delivered by Waggonbau Görlitz for lines S 1 and S 3 until the timetable change on 9. December 2007, replacing the old double-deck cars. The cost of acquiring the 53 cars that are capable of operating at up to was €72 million. On the same day, a new rollingstock depot was opened in the old town of Dresden. The new vehicles were delivered in full by the timetable change in December 2007. Trains were hauled by locomotives of class 143 and Bombardier Traxx (class 146.0). Siemens ES64U2 (class 182) locomotives were due to take over operations from the timetable change in December 2015. Stations S-Bahn stations in the Dresden inner city Dresden Hauptbahnhof (access to the city center; transfer to long-distance and regional services and to trams and buses) Dresden Freiberger Straße (access to the city centre and to the World Trade Center Dresden) Dresden Mitte (access to Messe Dresden–Dresden exhibition ground–and to the International Congress Center Dresden; transfer to trams and buses) Dresden-Neustadt (transfer to long-distance and regional services and to trams and buses) Lines The trains of the S-Bahn Dresden run annually. It consists of the following lines: Line S 1 Line S 1 is the oldest and most important S-Bahn line in and around Dresden. It connects all important places in the upper Elbe region with the state capital