The tram crossing Barbarossaplatz in Cologne seen from the 17th floor of the TausendFenster-Turm on 18 January 2005. This is the busiest tram junction in Cologne (as long as only lines running on the surface are considered) with seven lines running in different directions. Line 6, 12 and 15 run from the northern ring line (upper left corner, next station Zülpicher Platz) to the southern ring line (lower right corner, next station Eifelstraße). Line 18 and 19 come from the city center tunnel (upper right corner, next station Poststraße) and proceed along the Luxemburger street (lower left corner, next station Eifelwall). Line 16 and 17 do also come from the city center, but turn left towards the southern ring. All platforms are located on the north side (towards the northern ring respectively the city center), so a train using the connection at the lower edge of the picture would not pass a platform. The train waiting at the upper left corner consists of low-floor cars of 4000 series, so it is line 12. The livery with the "125" on the first car was applied in 2002, when the Kölner Verkehrsbetriebe (KVB) were 125 years old. A train of 2300 series cars is just crossing the area towards Luxemburger street, this could be a line 18 or 19. The green car entering in the opposite direction belongs to the Stadtwerke Bonn (SWB). It is similar to the 2000 series of Cologne, but in Bonn another numbering scheme is used. As this train comes from Bonn, it must be line 18. The 5100 series car in the lower right corner is waiting to proceed to the northern ring, so it is line 15, as line 6 uses the old eight-axled cars of 3100 and 3200 series.

Digital photo by Christoph Schmitz (christoph.schmitz2@post.rwth-aachen.de)