View onto the section Sindorf of the upgraded line Cologne-Düren (ABS 4) from the street bridge at it's western end on 8 August 2001. Note the different colours of tracks and trackbeds. The track for the S-Bahn (urban trains) on the right is in use for nearly one year, while the northern highspeed track on the left is in use for some months. The southern highspeed track in the middle is not in use by now, it's surface has a bright rusty colour.
Digital photo by Christoph Schmitz