1. Institute for Transport Studies, University of Leeds, Leeds, UK
2. Rural and Surveying Engineer, Laboratory of Transportation Planning, Transportation Engineering &highway Engineering, Department of Transportation & Hydraulic Engineering School of Rural & Surveying Engineering, Faculty of Engineering, Aristotle University of Thessaloniki, Thessaloniki, Greece
3. Hellenic Institute of Transport (H.I.T.), Centre for Research and Technology Hellas (CE.R.T.H.), Thessaloniki, Greece