Prof. Dr. Alessandro Di Graziano holds a PhD in Engineering of Road Infrastructures. He is a full professor of "Road, Railways and Airport" at the Department of Civil and Architectural Engineering (DICAR) of the University of Catania. His scientific activity mainly focuses on infrastructures and transport management with a special emphasis on safety, maintenance and management. In addition, he is/was a member of various associations or steering groups including the National Association of Transport Companies (ASSTRA), the International Organization of Public Transport (UITP), the World Road Association (AIPCR), the Italian Society of Road Infrastructures (SIIV), the National Agency for Railway Safety (ASNF) and the Transportation Research Board (TRB). He has been a member of the Observatory on Public Transport at the Ministry of Infrastructure and Transport (2012–2017), vice president of the Catania Public Transport Company (2009–2013), general manager of the EtnaRailway and Metro Catania Agency (2014–2018) and government commissioner of the Eastern Sicily SEZ (2021–2024).