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3. Detection and warning
3.1 Fire detection
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Tunnels without permanent human supervision
An automatic fire detection system must be installed when the ventilation system to be used in the event of fire is not the same as that to be used in the event of heavy air pollution in the tunnel. It must automatically switch on the ventilation regime applicable in the event of fire, and trigger an alarm in the department on duty.
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Tunnels with permanent human surveillance
The usefulness of an automatic fire detection system needs to be considered in relation to the volume of traffic, particularly heavy goods vehicles, and in relation to other equipment required for this surveillance and...
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Detection and warning
Evacuating and protecting users
Bibliography
Websites
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French Tunnel and Underground Space Association – AFTES
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Center d'études des tunnels – CETU
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Regulations
Law no. 2002-3 of January 3, 2002 on the safety of transport infrastructures and systems, technical investigations following sea, land or air transport accidents or incidents, and underground storage of natural gas, hydrocarbons and chemicals.
Decree no. 2005-701 of June 24, 2005 for the application of law no. 2002-3.
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