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fire alarm system >>Protectowire >> Tunnels ............................................................................................................................................................................................................................................................................
Description The construction and environment of a vehicular tunnel poses unique and difficult fire safety problems. The life safety risks and potential danger facing people who travel through these enclosed structures are compounded when passengers are forced to evacuate through smoke-filled roadways or other emergency exits in the event of a fire. Among the causes of fire in vehicular tunnels are: accumulation of combustible debris along the roadway and within vent shafts, fuel spills and oils on the road surface; flammable materials carried as cargo; short circuits or electrical malfunctions in control or power cables; ventilation and air handling equipment; and human caused hazards such as motor vehicle accidents. Of all the potential causes of tunnel fires, incidents involving motor vehicles are of the greatest concern. Motor vehicle fires represent about 17% of all reported fires.
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