A motorway under surveillance


The Maurienne motorway is under constant surveillance from the Control Room (PC) situated at the heart of the CESAM premises. This PC manages the equipment and safety over the entire concession, from Aiton to the Fréjus Tunnel platform.

The Maurienne motorway Control Room (PC) manages over 67km of the network between Aiton and the Fréjus Tunnel. To successfully fulfil their various missions (network surveillance, alert management, implementing the appropriate actions following an accident/incident, weather warnings etc.), teams composed of a dispatcher and an operator man the centre 24 h/24.

Using supervision tools, agents monitor and control all the equipment on the network:

  • Emergency Roadside Telephone Network: Receiving and handling SOS calls.
  • CCTV Video: 220 cameras (1 every 100 m in the tunnel, fitted with automatic incident detection - AID).
  • Variable Message Signs: 15 VMS et 8 VMS-AIB (variable message signs with access information board) to manage information communication to users.
  • Centralised technical management system (CTMS): lighting, ventilation and fire plan.

The Control Room team coordinates operations on the ground between the various SFTRF teams (road viability agents, technicians etc.). As part of their mission to inform users of traffic and safety conditions, the CESAM PC liaises with external services: Gendarmerie, Firefighters, Local Government Authorities (Conseil Général, Préfecture) and the traffic radio station: Autoroute Info 107.7.