Risk Management in Hvalfjör∂ur Tunnel

University essay from Lunds universitet/Avdelningen för Brandteknik; Lunds universitet/Riskhantering (CI); Lunds universitet/Avdelningen för Riskhantering och Samhällssäkerhet

Author: Gu∂ni I. Pálsson; [2004]

Keywords: Hvalfjörður Tunnel; Hvalfjord; Dangerous Goods Accident DGA; Probabilistic Risk Analysis PRA; Quantitative Risk Analysis QRA; Fire; Risk Analysis; individual risk; societal risk; risk evaluation; risk criteria; Risk Management; HSE; farligt gods DGA; PRA; QRA; brand; riskanalys; riskvärdering; individrisk; samhällsrisk; risk kriteria; riskhantering; SHE; Technology and Engineering;

Abstract: This thesis is about how risks in Hvalfjörður Tunnel can or should perhaps be managed. Risk from collisions, vehicle fire and vehicles transporting dangerous goods accidents in the tunnel were quantified by using Probabilistic Risk Analysis (PRA) procedure. Frequencies were estimated using mostly historical data. Models to estimate consequences from these risks were then built by calculating physical effects and measuring their effects on people evacuating the tunnel. Results from the analysis were compared to different criteria. Other ways to make rational decisions regarding risks were discussed. The question on how risks can be decreased or controlled is briefly examined. Finally there is a discussion, both on actual results on risks in Hvalfjörður Tunnel and on the methodology used to quantify these risks.

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