Dimitriou holds Doctorate in Transport demand forecasting; MSc in Infrastructures Environmental Planning; MSc in Transport Planning & Management; and Diploma (equivalent to 4 years BA & 1 year MSc) in Civil Engineering (sector of transportation). He has long experience (22 years) in field of transportation, delivered many projects in planning, operation, management, business development and economics. He is Professor Associate in Quantitative Analysis and Management of Transport Infrastructures, providing dedicated courses and research in subjects of transport economics, decision making and risk assessment in Dept. of Economics, Democritus University of Thrace and other Universities in Greece and Europe. He has published over 200 papers in referred journals, scientific and professional editions, international conferences and he has elected in executive positions in professional associations and committees of expert.