Signals in Freiburg (Breisgau) Hbf. The semaphore left of track 8 is no longer in service - it has been placed in front of the building as a reminder of the old signalling system. These signals have been replaced a few years ago by new Ks signals, one of them can be seen right of track 7. The north exit of the station allows 60 km/h (hence the "6" sign). The signal has a low mast because the platform roof wouldn't allow a tall signal to be seen from the distance. 2003-12-28.