Fire Protection

Video smoke detection

Fire-safety in tunnels has always posed special challenges to planners and tunnel operators. Depending on the length of the tunnel section, it is, as in so many cases, not the flames themselves which present the greatest danger in case of fire, but rather the in most instances lethal fumes and smoke which are generated within seconds, obscure escape routes from the victims‘ view, and can kill within minutes. Experience shows that the majority of fire fatalities fall victim not, at least initially, to the fire itself, but to the smoke.

Many tunnels in Germany are now video-monitored. Of itself,...

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Issue 03/2011

Video-based smoke and flame detection for tunnels

Protective Objectives and Fire-Scenarios Fire-safety in tunnels has always posed special challenges to planners and tunnel operators. Depending on the length of the tunnel section, it is, as in so...

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Issue 01/2018 Flir

Thermal Fire Detection System in the Krohnstiegtunnel

The 419 m long Krohnstiegtunnel is a road tunnel running under the runway of the Hamburg Airport. It offers passage for vehicles, pedestrians, and cyclists. Since the tunnel was equipped with advanced...

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Issue 02/2018 Germany

Katzenbergtunnel on the Autobahn A3: Fire Protection in the North Tunnel with 25 Axial Fans

The 570 m long Katzenberg Tunnel on the German Autobahn A3 near Würzburg is currently under construction by cut-and-cover with a total investment volume of about 44 million euros. The first...

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Issue 06/2014 Monitoring Traffic

Detecting potential Fire Sources at the Karawanken Tunnel

The Swiss specialists for optical traffic data collation Sick System Engineering AG have developed a detection system for preventing tunnel fires. The thermal portal system enables potentially...

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Issue 02/2014

Safe from Fire and Smoke

Three significant factors diminish the bearing capacity of the structure and hamper stability in the event of a tunnel fire: Explosion-like spalling caused by immense heat development and the...

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