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Vehicle fires in Norwegian road tunnels 2008-2021

Authors: Tor-Olav Nævestad, Jenny Blom
Report nr: 1948/2023
ISBN (digital version): 978-82-480-2007-3
Language: Norwegian
Attachments Summary
Full report - in Norwegian only

There are more than 1200 road tunnels in Norway. The report maps and describes characteristics of fires and smoke without fire (SWF) in Norwegian road tunnels in the period 2008-2021. The study uses the following sources: 1) The electronic records of the Norwegian road traffic centrals, 2) road traffic central operators, 3) employees of the Norwegian Public Roads Administration working with road tunnel safety, 4) fire services, and 5) news archives. The average number of fires in Norwegian road tunnels is 27 fires per year. The average number of SWFs is 17 per year. Subsea tunnels are overrepresented among vehicle fires in Norwegian tunnels, and heavy vehicles (>3,5 t) seem, in turn, overrepresented in subsea tunnel fires. Technical problems seem to be the most frequent cause of these fires.


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