section, which is about four kilometers long, was completed on 25 November 2013 after more than two years of construction; this work included the restoration of operations on two tracks. Since the summer of 2011, around €36 m have been invested and at the same time about 8 kilometres of track have been renewed; 11 kilometres were fully reconstructed and four railway overpasses and one road overpass as well as two culverts were built. In the area of the former Altenburg tunnel, about 1000 metres of support wall and 500 metres of trough construction were built. In the future trains in this section will be able to operate at up to 150 km/h. Unimplemented upgrade between Plauen and Hof The line between Plauen and Hof is almost twice as long as the straight line distance, which is around 26 kilometres, considerably increasing travel time. There have been plans for a new line between Plauen and Hof since 1874. All proposals have assumed that the new line would start at Weischlitz on the Plauen–Cheb railway. The route would then have run via Wiedersberg and reconnected with the existing line at Hof. From 1884 onwards the community of Plauen sent a petition to the Saxon Landtag (parliament) every year, but the request was not implemented. A second serious attempt to promote a shortening of the route was made in 1913 and a third was made at the end of the 1930s. Preliminary work actually began, but it was stopped in favour of other projects with more military significance. The Werdau wye–Plauen section would have been upgraded to four tracks at the same time; the new section would have begun at Weischlitz and tunnelled under the heights of the Vogtland. The new line would have re-entered the existing railway network in Feilitzsch. At the beginning of the 1990s, there were again discussions on the construction of a new route between Weischlitz on the Plauen–Cheb railway and Feilitzsch, which would have shortened the Plauen–Hof section from 49 to no more than 32 kilometres. Because of the high costs and the routing of interregional long-distance traffic between Berlin and Munich via the Großheringen–Saalfeld railway, the projection has not been implemented. Integration of the Leipzig City Tunnel In the course of the construction of the Leipzig City Tunnel, work was carried out on the Leipzig–Hof to integrate in the network. This work enabled the City-Tunnel to