Glasower Damm Ost–Bohnsdorf Süd railway  The Glasower Damm Ost – Bohnsdorf Süd railway is an electrified, predominantly double-track main line in Germany. It is mainly located in the state of Brandenburg south of Berlin, but a small part of it is in Berlin. It is mainly intended to connect Berlin Brandenburg Airport (BER) with the underground Berlin Brandenburg Airport station. Its eastern section replaced the Berlin-Grünau – Berlin Schönefeld Airport South railway ("Bahnstrecke Berlin-Grünau – Berlin Flughafen Schönefeld Süd"), which was opened in 1963. This ran parallel to the current line and was mainly used to supply the airport with fuel and building materials. From 1992 to 2010, it was also used for passenger services to the biennial ILA Berlin Air Show. The new continuous line to the airport went into operation in October 2011. Because of the delays in opening the airport, it has no significant traffic so far, apart from the freight traffic to Schönefeld airport. The construction of the Henschel aircraft factory near the town of Diepensee, south of Berlin, began in 1934. The so-called "Henschelbahn" (Henschel Railway) initially supplied the works. It had emerged from the Diepensee freight railway, which had originally operated as a horse tramway. The line ran from Berlin-Grünau station straight through the built-up area of Bohnsdorf. After the Second World War, the railway was dismantled for reparations. A Soviet military airport was built on the grounds of the Henschel works after 1945. The Henschel Railway was rebuilt in 1947 to supply it with materials and fuels. The southern part of the airport was transferred for civilian use to Deutsche Lufthansa of East Germany (later Interflug) on 27 April 1955. Initially, the former Henschel Railway continued to be used for the supply of materials and fuels. This line proved not to have sufficient capacity with the growth of the airport and it was also severely hampered the increasing road traffic. As a result a new siding was built in 1959 from the Grünbergallee station on the Berlin Outer Freight Ring ("Güteraußenring", GAR) and the old line was closed. By the beginning of the 1960s, it became apparent that this line could no longer be used in the longer term.