The Alpine Tunnel of Fréjus is a 2-lane bi-directional tunnel between France and Italy with a length of 12,870 km. In 2003, SFTRF/SITAF launched the project to replace the existing video surveillance system by a new system including

• Automatic incident detection
• Digital recording

integrated into the tunnel management system.

Redundancy is required for data storage, network communication and power supply. The software platform for collection and storage of traffic data and events, monitoring and reporting should also provide a configurable function in order to filter or inhibit events.

The installation

The tunnel cameras are wall mounted. Each camera covers 130 m. Camera images are transferred over a fibre optic network to the racks with VIP-T boards and E-COM. The equipment is centralised in two technical rooms, one of which is in Italy (PCCI) containing 122 camera signals, the other in France (PCCF), containing the other 122 camera signals. Traffic data, events and pre- and post-incident sequences are transferred to 2 redundant T-Port management software PC’s via the E-COM boards and Ethernet switches.

The T-Port software platform collects and stores data, events and pre-and post-incident sequences. T-Port serves as the interface between Traficon’s incident detection system and the overall traffic management system in the control room.

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