The conference invites presentations of technologies, solutions, experiences and best practices in smart cities and large infrastructures development. It emphasizes Smart Cities multidisciplinary aspects and promote system approaches in solving complex sustainability and resilience problems. The conference topics include but are not limited to IoT, 5G, cloud technologies, critical infrastructures, socio-technological systems, artificial intelligence, smart terrestrial and maritime infrastructures and transport systems, smart cities sustainability, smart green energy systems, smart buildings, environmental monitoring, local challenges and smart cities policies.