Vienna S-Bahn
The Vienna S-Bahn is a suburban commuter rail network in Vienna, Austria. As opposed to the city-run urban metro network, the Vienna U-Bahn, it extends beyond the borders of the city, is operated by the ÖBB  (Austrian Federal Railways), and consists of many branch lines. S-Bahn is short for Schnellbahn, which can be translated as "rapid railway". Network 

The Vienna S-Bahn consists of a multitude of branch lines extending beyond the city boundary, most of which converge at a central route segment called the Stammstrecke ("trunk line"). While many of the individual lines run at half-hourly or hourly intervals, they are able to offer combined frequencies of only a few minutes or less along the Stammstrecke. Only line S45 operates entirely within Vienna's boundaries. Unlike many S-Bahn networks in Germany, the Vienna S-Bahn is not a separate rail network. It is integrated with, and part of, the national railway system. As such, S-Bahn trains share tracks with regional trains (which travel further than the S-Bahn, some regional lines crossing into neighbouring countries) and other rail traffic, including freight trains. The numbering of the lines has changed since the partial opening of the Wien Hauptbahnhof on 9 December 2012. All lines, except for S45, have trains that go further and ones that do not run to the terminal. History 

The Wiener Stadtbahn, which belonged to the Commission for Transport Facilities in Vienna and was operated by the Imperial Royal Austrian State Railways, was in its original mode of operation (1898–1925) a forerunner of the S-Bahn, since it was a full-line operation (), which also handled local traffic. However, since other factors, such as military transports, long-distance traffic, etc., played an important role in their planning and the railway was operated with steam locomotives, there was no great success. As a result, numerous proposals were made to improve the situation, but most of them failed. In these proposals, generally no distinction was made between full railway and metro, so many proposals under the name "U-Bahn" mostly included mainline railway facilities. The original light rail plans included more lines than were actually built; said plans remained legally safeguarded until 1951. However, the Stadtbahn, which had been shut down after 1918, was reopened in 1925 by the Vienna city administration as the Wiener Elektrische Stadtbahn and in a common fare network with the tram; for the sets, turning loops were built in Hütteldorf and Heiligenstadt and at Gumpendorfer Straße station, connecting tracks to the tram network were also built so that the Stadtbahn cars used could also run on the tram. The track connections to the full railway network, on the other hand, were shut down or dismantled. The light rail was thus eliminated for an operation that was spreading to the region. When the  Gemeindebau housing estate in the 3rd district was built in 1931–33, it was designed so that an elevated passenger railway line intersecting diagonally between the apartment blocks would have been possible. In the entrance area of the complex there is a board in which this planned route is referred to as a U-Bahn. After the "Anschluss" of 1938, the Siemens Bau Union developed a combined U-Bahn and S-Bahn network with municipal offices, the latter intended to be operated by the Deutsche Reichsbahn. Although the planned network was extremely extensive, due to the onset of World War II that plan was not able to go beyond test drilling. In the post-war period, there were new proposals, but these rarely had an official character. A proposal by Otmar Denk from 1947 was very similar to the project that was later realised. Planning for the S-Bahn network for Vienna was started in 1954 as a part of reconstruction of the ÖBB and especially the Wien Südbahnhof. Concrete plans were completed by 1955, but financing was not secured until 1958. The collapse of the investment budget of the city of Vienna led to a partial stop of construction in 1960, necessitating a postponing of the grand opening of the network by a little over a year. The S-Bahn era in Austria began on 17 January 1962. Its official opening was attended by over 900 invited guests, including Federal President Adolf Schärf and Vice Chancellor Bruno Pittermann. After a day of testing the network with empty trains, passenger transport began at 11:45pm the following day. Between Meidling and Praterstern a driving ban for steam locomotives was immediately imposed. The station Hauptzollamt was renamed "Landstraße" (now Wien Mitte), analogous to the Stadtbahn station. The S-Bahn was an immediate success. There was severe overcrowding, which could only be eliminated by replacing the single sets with double sets. An agreement was concluded with Wiener Stadtwerke – Verkehrsbetriebe which allowed passengers to use other parallel modes of transport without additional ticket purchase in the event of a malfunction. In 1963, the first television monitors for train handling were installed on a trial basis in the Südbahnhof stop (now Wien Quartier Belvedere). On the Stammstrecke trains were initially run every quarter of an hour, but already in October 1962 the traffic between Floridsdorf and Landstraße was increased in the rush hour, and from 1964 on the entire Stammstrecke. Since 3 June 1984, the Vienna S-Bahn has formed part of the integrated fare structure of the  (VOR) of Vienna, Lower Austria and Burgenland. From 1962 until 2005, the term S-Bahn was rarely used, the full term Schnellbahn being preferred. Starting with the 2005/2006 timetable, however, S-Bahn has begun to appear in timetables and loudspeaker announcements. Announcements in Badner Bahn trains still use the term Schnellbahn as of 2009. The Stammstrecke 

The , which translates to "Trunk line", of the Vienna S-Bahn has a length of 13.3 km (8.3 mi) with trains running at headways comparable to those of the Vienna U-Bahn. Since 2017, it is shown on maps (including U-Bahn maps) as a dusty pink line. From the south to the north, the following stations are served:

 Wien Meidling 
 Wien Matzleinsdorfer Platz
 Wien Hauptbahnhof (formerly Südtiroler Platz)
 Wien Quartier Belvedere (formerly Wien Südbahnhof tracks 21/22)
 Wien Rennweg
 Wien Mitte (formerly Landstraße)
 Wien Praterstern (formerly Wien Nord)
 Wien Traisengasse
 Wien Handelskai
 Strandbäder (closed 2002)
 Wien Floridsdorf

The Stammstrecke is expected to be extensively modernised, including a signalling upgrade to ETCS Level 2, between 2023 and 2027. The Vorortelinie 

The most highly frequented single line in Vienna is the S45 Vorortelinie, which translates to "Suburban line". The localities along this line all lie within the city proper, although they had been independent until the late nineteenth century, when they were incorporated, six years before this line opened. Originally part of Otto Wagner's federally operated Stadtbahn, this line was not taken over by the city with the rest of the network in 1925. The line was subsequently closed to passengers in 1932. Although still used for freight traffic for several decades afterwards, the line would not see passenger traffic again until 1987, when it was reopened as part of the S-Bahn after extensive renovation. Many of the original Otto Wagner stations are still standing and still in use. However, two of the present stations, Breitensee and Oberdöbling were demolished after the original line's closure and rebuilt in a different style by architects Alois Machatschek and Wilfried Schermann. One new station, Krottenbachstraße, was added to the refurbished line, and two of the original line's stations, Baumgarten and Unterdöbling, which had also been demolished, were not replaced. Rebuilding Unterdöbling station is proposed for the near future, as is extending the line south to the Reichsbrücke. The line was extended from Heiligenstadt to Handelskai in 1996, to allow for an easy connection to line U6 of the Vienna U-Bahn. The Vorortelinie runs at headways of 10 minutes (daytime on weekdays), and is shown on maps (including U-Bahn maps) as a light green line. Rolling stock

Current 
 ÖBB Class 4020 (since 1979)
  hauled by ÖBB Class 1116 or ÖBB Class 1144 locomotives (since 1996)
 ÖBB Class 4024 (since 2004)
 ÖBB Class 4744/4746 "cityjet" (since 2015)

Former 
 ÖBB Class 4030 (from 1962 until 2004)
  (partly as multiple working with Class 4030)
 DB Class 420 (1970 trial)
 SBB-CFF-FFS Re 450 (1992 double-decker train trial)

Future plans 
Plans for expansions of the S-Bahn network currently exist only to a small extent. Depending on the results of the negotiations between ÖBB and the states of Vienna and Lower Austria, a line S10 is to be created from Gänserndorf via Stadlau, Simmering and Wien Hauptbahnhof to Meidling. Demands for the extension of the S7 to the Slovakian capital city Bratislava have been made since 1990; the realisation fails because the ÖBB has sold the right-of-way off the  from the Wolfsthal terminus to the Slovakian border to private individuals. The most important current construction project is the refurbishment of many S-Bahn stations. Recently, for example, the Westbahnhof and the Bahnhof Wien Mitte were completed. Vienna Airport railway station's renovation to accommodate long-distance trains was completed in 2014. The Wien Quartier Belvedere stop was refurbished in 2016. Furthermore, in December 2014, in the course of the new construction of Wien Hauptbahnhof on the site of the former Südbahnhof, the construction of a connection between the Ostbahn and the airport rapid transit line was completed in order to create an optimal connection to Vienna Airport. The double-track connection was built in the vicinity of the Zentralverschiebebahnhof–Kledering–Zentralfriedhof and has been scheduled since 14 December 2014. According to plans of the ÖBB, the new connection could be run as line S75 from the airport to Vienna Central Station and then on the S-Bahn Stammstrecke from Wien Meidling to Wien Hütteldorf with appropriate financing by the states of Vienna and Lower Austria. An extension of the suburban line S45 from Handelskai to Donaumarina U2 station along the freight-only , with through-running on the current line S80 to form a  linking the Laaer Ostbahn at Haidestraße and then connecting to the Stammstrecke at Wien Hauptbahnhof, has been under discussion since 1993. The , which was noticeably relieved by the Lainz Tunnel, is also to be upgraded between Hütteldorf and Meidling. In addition to a complete renovation and large-scale grade-separation works, the two stations Hietzinger Hauptstraße and Stranzenbergbrücke are to be rebuilt. As of 2020, preparatory work is expected to begin around 2023 and completion is expected in 2026. See also 
 Trams in Vienna
 Vienna Metro
 Wiener Lokalbahnen
 Transportation in Vienna

References

External links 
 
 

 
Transport in Vienna
S-Bahn in Austria
15 kV AC railway electrification