The center of the finished double-slip switch seen in Sindorf on the upgraded line Cologne-Düren (ABS 4) on 11 October 2001. On each side four rails are coming from each end, they are (from inside to outside) one rail for the diverging tracks, then two rails for the crossing tracks and then one rail for the diverging track. The flangeways for the crossing tracks in the middle are passed by the rails of the diverging tracks both on the inside and on the outside. It is visible that the very inner rails continue as tongue, also does the second rail (counted from the outside). One of the inscriptions contains the term 1:9, as far as I know this is the angle of the switch.

Digital photo by Christoph Schmitz