Emeritus Professor in the Civil Engineering School, National Technical University of Athens (NTUA). He is a Civil Engineer Graduate of NTUA, with an M.Sc and a Ph.D in Transport from University of London.

He is currently the Managing Director of the Eugenides Foundation.

He has served, among others, as Rector of NTUA, Caretaker Minister of Transport and Infrastructure, Caretaker Minister of Production Reconstruction, Environment and Energy, Secretary General of the Ministry of Transport and Communications, Head of the BoD of Athens Public Transport Organization, Dean of the NTUA School of Civil Engineering, BoD Member of the Organization for the Urban Development of Athens, BoD member of the Company for the Athens Archaeological Sites Unification and Head of the Hellenic Society of Transportation Engineers.

He has coordinated numerous transport and feasibility studies and research projects in Greece and other countries, has published more than 250 papers in scientific journals and conferences and received more than 7500 citations. He is and has been member of various Greek and European Commission scientific committees.