been closed for mainline traffic to Nordbahnhof on 18 May 1952. Immediately after the wall was built, the S-Bahn between Oranienburg and Hohen Neuendorf became an isolated operation. Subsequently, S-Bahn tracks were built and electrified along the Berlin outer ring between Hohen Neuendorf and Blankenburg. This line was connected in November 1961 to the main S-Bahn network. In Berlin, S-Bahn services continued to Frohnau until the handover of operating rights of the S-Bahn in West Berlin from the East German Railways to the BVG on 9 January 1984. Services were first closed and only resumed on 1 October 1984. Rehabilitation carried out on the S-train tracks in 1985 placed them on a track profile that would make the restoration of the old main line for long distance traffic difficult. After the reunification, many of the smaller stops were however closed (Düsterförde (1996), Strelitz Alt (1995), Neddemin, Randow, Toitz-Rustow. In 1992, the gap between Frohnau and Hohen Neuendorf was reopened so that continuous S-Bahn services could resume on the Northern Railway to Oranienburg. In the long term, the recommissioning of the direct route from Berlin to Birkenwerder is planned. For this purpose, the long-distance railway tracks of the northern railway between the station Berlin-Gesundbrunnen and Birkenwerder on a length of 18.8 kilometres are to be rebuilt with two tracks with a line speed of 160 km/h, but no date has been set for this. See also Stellwerk Fichtengrund References External links Defunct railway companies of Germany Railway lines in Berlin Railway lines in Brandenburg Railway lines in Mecklenburg-Western Pomerania Standard gauge railways in Germany Railway lines opened in 1877 1877 establishments in Germany Berlin S-Bahn Buildings and structures in Vorpommern-Rügen Buildings and structures in Mecklenburgische Seenplatte (district) Buildings and structures in Oberhavel Neubrandenburg Transport in Prussia