initial plans called for an entrance hall crowned by a dome and with a natural stone frontage, which would have been 90 metres wide and 8 metres deep. However, with planning almost complete, construction was delayed "until further notice" by the outbreak of the First World War. The necessary preparatory work for the new construction, the complete separation of passenger and luggage movements, was still completed. It took until 1929 to establish an operations and locomotive depot between the Dreisam river and Basler Straße. This made it possible to create space for additional tracks and platforms since the locomotive sheds and workshops that had been located west of the station could now be moved to the new depot, which is now on the site of the DB Regio workshop in Freiburg. The space created was used for the construction of two more platforms in 1929 and 1938. The first of the two new platforms had a width of eight metres and a length of 270 metres. The drain on the roof was initially installed in the centre and was no longer on the roof's slope. A postal lift was also installed with the construction of one of the new platforms. Basler Straße was relocated in the course of the work by 50 metres to the side and lowered by about six metres. This enabled the two tracks of the main line, a headshunt and the two separate tracks of the Höllentalbahn, which had been opened on 8 November 1934, to cross over the street on three new bridges. The most dangerous level crossings within the city had now been eliminated. Crossings removed earlier included those at Albertstraße (the underpass is now called Mathildenstraße), Lehener Straße (both replaced in 1905) and on the Höllentalbahn (replaced in 1934). Despite the cramped conditions, luxury trains already passed through the station at this time: in the summer of 1901, the Amsterdam–Engadin Express began operating. It was not, however, destined for a long life. Much more successful was the launch of the Rheingold on 15 May 1928, which served the station until the beginning of the war on 1 September 1939, when it had recently run over the Gotthard as far as Naples. On 15 May 1939, the Reichsbahn began running high-speed railcars (Schnelltriebwagen) via Freiburg on the Basel–Dortmund route (FDt 49/50) (operated with DRB 137 273 ... 858 sets) and Basel–Berlin Anhalter Bahnhof (FDt