51570 Windeck, Germany
| Bahnhofstr. 24, Au (Sieg), North Rhine-Westphalia
Sieg Railway (KBS 460)
Engers–Au railway (KBS 461)
Siegen station, Köln‑Ehrenfeld station, Düren station, Herchen station, Dillenburg station
Au (Sieg) station Wikipedia
Au (Sieg) station is a railway junction in the town of Au (Sieg) in the German state of North Rhine-Westphalia on the Sieg Railway to Siegen, where the Engers–Au railway branches off to Altenkirchen, where it connects with the Upper Westerwald Railway (German: Oberwesterwaldbahn).
The section of the Sieg Railway between Eitorf and Wissen through Au was opened on 1 August 1860. On 1 May 1887, the branch was opened to Altenkirchen, connecting with the Upper Westerwald Railway to Limburg and additional tracks was added at Au. In 1885 Au consisted of only four houses and 16 inhabitants.
Au is served by the Rhein-Sieg-Express (RE 9) on the Aachen–Cologne–Siegen route, the Rhine-Ruhr S-Bahn line S12 service on the Düren–Cologne–Au route and two Regionalbahn services, the Westerwald-Sieg-Bahn (RB 90), to and from Limburg an der Lahn and the Sieg-Dill-Bahn (RB 95) to and from Dillenburg.