Because of their special nature, tunnels present important security requirements owing to the fact that a traffic problem in or near a tunnel could result in a critical situation. The effective management of a tunnel problem depends completely on its rapid discovery; for this reason it is necessary to invest in detection systems and tunnel safety management.
By means of real- time analysis of camera images, a detection module of tunnel problems permits, in a matter of seconds, discovery of problems such as accidents, fires, maintenance work, detained vehicles, suicidal drivers, traffic jams, slowly moving vehicles, lost cargo, fallen objects and sudden decrease of speed, among others.
With a short detection time of tunnel problems, it is possible not only to diminish the impact of those problems, but also to prevent secondary accidents.
Traffic information that is obtained with these tunnel detection systems includes traffic flow rate, occupation zone, distance between vehicles and quantity of vehicles in a segment of the tunnel.