A research titled ‘Mobility patterns of moped and motorcycle riders in Greece’ co-authored by G.Yannis, J.Golias, I.Spyropoulou and E.Papadimitriou from NTUA, was published in the Journal Trasportation Research Record in December 2007. A nationwide travel survey targeted at two-wheeler and passenger car active drivers was carried out. The results of the survey were exploited in two ways; first, the usage of the examined vehicle types in Greece was investigated in relation to driver characteristics, through the calculation of the respective sample distributions. The results demonstrated a clear difference between vehicle ownership rates and vehicle usage rates per vehicle type.