On 11 October 2001 the double-slip switch in Sindorf on the upgraded line Cologne-Düren (ABS 4) seems to be finished. The center with the flangeways for the crossing tracks is more or less in front of the catenary mast next to the switch. Towards the ends are the sections with the tongues and then the frogs with their flangeways.

Digital photo by Christoph Schmitz