| 2007 - today | Director of the Institute of Transport Research at the German Aerospace Centre |
| 2003 – today | Professor for Traffic Geography, Humboldt University of Berlin |
| 2002 - 2006 | Head of the research group „Space and Traffic“, German Aerospace Center, Institute of Transport Research |
| 2001 | Habilitation, University of Stuttgart |
| 1994 | Doctorate, University of Stuttgart |
| 1989 - 2002 | Resarch Assistant, University of Stuttgart, Institute of Geography |
| 1988 - 1989 | Teacher, Privates Gymnasium Merz, Stuttgart |
| 1986 - 1988 | Trainee, Staatliches Seminar für Pädagogik am Gymnasium |
| 1975 - 1982 | Degree in Geography and German Studies, University of Stuttgart |
| 1973 - 1975 | Editorial Apprenticeship, Verlag Waiblinger Kreiszeitung |
