S-Bahn Mitteldeutschland. By 2017, further development is planned within the city of Leipzig as part of German Unity Transport Project 8.3. Route The line (6411), as defined by Deutsche Bahn, begins as the immediate continuation of the Biederitz–Trebnitz railway (6410) with the 0.0 kilometre point (at the line change) at the former Trebnitz block post, north of the village of the same name. It runs straight to Roßlau in a southeasterly direction through the fertile corridor between the Fläming Heath and the Elbe and through Zerbst, running substantially parallel to national highway 184 (B184), which it at crosses at Rodleben. On the northwestern outskirts of Roßlau there is a junction to the north with a connecting curve to Roßlau marshalling yard and the lines to Wiesenburg and Falkenberg/Elster, while this line turns south and runs to Roßlau (Elbe) station. The line passes under the B 184 before Roßlau station and the line crosses the Elbe on a truss bridge just south of the station. After about two kilometres, following a section on a long bridge, the line crosses of the Mulde and its flood plain. At Dessau Hauptbahnhof, the line again passes under the B 184, which runs north and south of the city largely parallel to the line. At the southern exit of Dessau Hauptbahnhof, the line to Köthen branches off to the west and about three kilometres later the line reaches Dessau repair shop (Ausbesserungswerk). Between Dessau-Haideburg and Marke the line runs through a wooded area, and approximately half-way through it, national highway 9 passes under the line. The line follows the cultivated part of the Mulden valley until Raguhn, but the industrial area around Bitterfeld-Wolfen begins in Jeßnitz. In Bitterfeld the line from Stumsdorf, which is used only for freight traffic, runs from the west while the Berlin–Halle railway runs from the north through the Mulde valley. The latter line runs parallel for about two kilometres from Bitterfeld station until the vicinity of Holzweißig, where it crosses over using a flying junction and runs away to the southeast towards Halle. Near Petersroda the line passes Ludwigsee and the Neuhäuser See (lakes) at a distance and it then crosses the border with Saxony. After crossing the Lober, the line again returns to its original route and soon reaches Delitzsch with its repair shop and Delitzsch unterer (lower) station. South of Delitzsch the line run almost straight to the