With the creation of an S-Bahn network in Dresden from 1973, plans for the reconstruction of the long-distance tracks were intensified.
The subgrade for the reconstruction of the third and fourth track was prepared between 1979 and 1982; this work also included the construction of numerous bridges.
The project had to be postponed in the 1980s because of increasing damage to the Deutsche Reichsbahn network as a result of alkali-damaged sleepers and limited construction capacity.
It now provided for an operationally independent S-Bahn line, which would have connections in only a few places to the mainline tracks.
The platform height was fixed at 55 centimetres above the rail, with enables passengers to access double-deck coaches with low entries as well as Desiro railcars of DB Class 642 without any steps.
The building of new S-Bahn tracks running parallel on the northeastern side also started from Coswig.
The following table shows the services that run on all or part of the completed S-Bahn line between Pirna, Dresden-Neustadt, Radebeul Ost and Coswig (as of summer 2016): Every now and then, some freight trains run at night between Dresden Hauptbahnhof and Pirna on the line to avoid construction sites or breakdowns.