 As a result, the new Kornwestheim marshalling yard was opened on 29 July 1918.In the future, the two stations were distinguished by the suffixed abbreviations "Rbf" ("Rangierbahnhof", marshalling yard) and "Pbf" ("Personenbahnhof", passenger station).In 1929, Deutsche Reichsbahn completed the upgrade to four tracks between Post 12 (south of Kornwestheim station) and Ludwigsburg.