Alexander Maravas holds a B.S.E. in Mechanical and Aerospace Engineering from Princeton University, an MSc in Advanced Mechanical Engineering from Imperial College, and a PhD in Project Management from the National Technical University of Athens. He has over 26 years of experience in transport infrastructure projects. He is currently working on the Thessaloniki metro project in which passengers will be transported by automated driverless trains controlled by a CBTC signaling system. Previously, he has worked on over 1000 km of motorways on the Egnatia motorway and its vertical axes. Additionally, he has worked on numerous environmental protection infrastructure projects. His research interests include project management, scheduling, transport infrastructure, investment appraisal, aviation & aerospace.