Some signals at the tram station Eifelstraße in Cologne seen on 13 July 2002. The red board with the numbers is a Sh2. It says that tramcars of 2000, 4000 and 5000 series are not allowed to proceed to the right onto the southern branch of line 12. The reason is that the turning loop in Zollstock is to tight for six-axled cars. Above the board is the switch indicator which is dark at the moment. If the switch is activated automatically by the tram or manually with a key at the box below, it shows if it leads to the right (Wn9) or to the "left" (Wn10) (in fact, this is the straight direction). Above the traffic light are the F signals for each branch, they act like traffic lights for the trams.

Digital photo by Christoph Schmitz