To avoid human disasters
Road tunnels are one of the most dangerous confined spaces that thousands of people pass through every day. In case of accidents, the probability of human disaster is extremely high : multiple crashes, fire or smoke can kill. The tragedy of the Mont Blanc Tunnel, France, in 1999 is one of the worst example with 39 deaths.
Reliable critical communications
In case of intervention, emergency services as Police, Fire Brigades, Ambulances, need a robust and reliable radio coverage system to communicate inside road tunnels.
Alerting the drivers through the radio channels
Fire and multiple accidents are an immediate danger for people inside cars. An adequate alert system through the car radio can deliver them instructions needed to save their own lives.