• Public transport survey, Salzburg, 2011
  • Punctuality survey for the bus traffic, Bonn, 2009
  • Quality survey (tram 66), Rhein-Sieg-Kreis and Bonn, 2009
  • Traffic analysis, Marktgemeinde Gratwein, 2009, pdf 2,5 MB
  • Customer satisfaction survey S-Bahn, Graz 2009, pdf 1,7 MB
  • Regional commuter survey, East Styria 2008

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