Societe Marseillaise du Tunnel Prado Carenage SA (SMTPC) is a France-based company that operates the Prado Carenage Tunnel and the Rege Tunnel. The Prado Carenage Tunnel, with total length of 2.5 kilometers, connecting the Southern districts of the city of Marseilles and the Eastern motorway to the city centre and to North via the Vieux Port tunnel and the coastal motorway, and The Rege Tunnel links Prado Avenue with the Prado Carenage Tunnel. The Company, which is responsible for the management, upkeep and marketing of the Rege Tunnel, has a franchise to operate the Prado Carenage Tunnel and the Rege Tunnel until 2025. The Companyâ€™s major shareholders include Eiffage and Vinci Concessions. The Company also focuses on the operation of the Prado Sud Tunnel.