RB 20 - Schnellfahrstrecke Köln - Aachen Extension This route consists of two small extensions to the Schnellfahrstrecke Köln - Aachen route. The first is an extension from Stolberg Hauptbahnhof to Stolberg-Altstadt. The second is an extension from Stolberg Hauptbahnhof to Langerwehe via Eschweiler West. The total distance for this extension is 15km. Rolling Stock DB BR 643 Stations This extension has 8 stations: Stolberg Schneidmühle, Stolberg Mühlener Bahnhof, Stolberg Rathaus, Stolberg Altstadt, Eschweiler West, Eschweiler Talbahnhof, Eschweiler Nothberg and Eschweiler Weisweiler. Services The rolling stock is indicated in red. The frequency, in trains per hour (tph) is shown in blue. The time taken for the service (h:m) is shown in green. Aachen Hauptbahnhof to Stolberg Altstadt 643 2tph 00:26 Aachen Hauptbahnhof to Langerwehe 643 2tph 00:31 On this line, trains start from Aachen Hbf, and go to Stolberg Hbf, calling at all stations. The train splits there, with one half going to Stolberg Altstadt, and the other half going to Langerwehe. I think this extension will add more variety of services to Schnellfahrstrecke Köln - Aachen, as a lot of this line is single-track, and it is all unelectrified, so the rolling stock is diesel. We haven't yet had any diesel passenger services in Germany, which is why I want this route to be made.