In the first years of the 20th century, several proposals were made to link Freiburg to Schauinsland. The extension of city tram route 2 on segregated track to Günterstal in 1913 was intended as the first section of a high speed tramway that would connect with a proposed rack railway to the mountain's summit. Other proposals included an aerial cableway, proposed by Professor Georg Benoit of the University of Karlsruhe, and a much longer adhesion railway from Freiburg Hauptbahnhof via Schauinsland to Todtnau. The outbreak of the First World War stopped any further progress on these plans.