ICE 3 test-drive on a digital terrain model from Erfurt

ICE 3 train test-drive on a digital terrain model from Erfurt. The elevation data for the DTM (digital terrain model) and the aerial photography / orthophoto of Erfurt were provided by the Geoportal-TH and can be downloaded free of charge.
http://www.geoportal-th.de/de-de/Downloadbereiche/Download-Offene-Geodaten-Thüringen