On the track between track 17 and 18 of Dresden Hbf (currently closed for trains) I saw this highly unusual work train, consisting of two dual way unimogs with an improvised rail crane inbetween, which is actually a truck-mounted crane without wheels loaded onto a flat car. You can also see the steel structure that has been built over the tracks so that the roof can be replaced while trains continue operating. 2001-03-21.

photo: tobias b köhler