ETRA is a leading Industrial Group that constitutes a Smart Technologies Center of Excellence within VINCI Corporation. This key position is based on ETRA's intense research, development and innovation activities. ETRA's mission is putting technology to work to serve society in the fields of mobility, energy efficiency, security and communications. The Company expertly and effectively combines the Smart City technology model with the provision of specific, tangible solutions that improve citizens' quality of life as well as the efficiency of city services managers (be them public or private) in the use of their limited human, material and environmental resources.