Risk Analysis of Sea Traffic in the Area around Bornholm, 2008. - VTT

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Risk Analysis for Sea Traffic in the Area around Bornholm 48 Table 21 Change in expected accident costs in case of a traffic diversion – by accident type Area Parallel collisions Crossing collisions Imprecision groundings Missed-turn groundings Total Bornholmsgat -4% -1% +2% - -1% NE of Bornholm +23% +4% +10% - +9% S of Bornholm -6% -12% -17% - -13% All -3% -2% -1% - -2% Table 22 Change in expected accident costs in case of a traffic diversion – by consequence type Area Loss of life & assets Clean-up costs Total Bornholmsgat +0% -1% -1% NE of Bornholm +9% +10% +9% S of Bornholm -12% -14% -13% All -1% -2% -2% Loss of assets and clean-up costs are in the same order of magnitude in the areas north-east and south of Bornholm (Table 20) and change in about the same way in both areas, if a traffic diversion is introduced Table 22). Enlarged figure in Appendix D P:\65775A\3_Pdoc\DOC\P-65775A main report final corr prepared for PDF.DOC .
Risk Analysis for Sea Traffic in the Area around Bornholm 49 Figure 27 Expected yearly loss of assets (including loss of life) for 2005 traffic data Enlarged figure in Appendix D Figure 28 Expected yearly clean-up costs for redistributed traffic As far as collisions with small vessels are concerned, the situation is the same as for accident frequencies: There is a slight reduction in collisions with fishing boats (-1.6%) and an even more slight increase in collisions with yachts (+0.4%). Besides, fishing boats contribute only 5% to total risk and yachts less than 1%. 6.4 Cost-benefit assessment (FSA step 4) Costs and benefits can occur in two ways: • as expected costs/benefits, i.e. as a result of uncertain events, such as ship accidents. • as direct costs/benefits, i.e. as a result of scheduled events, such as operating a ship (fuel, capital investment, external damage due to ship engine exhaust fumes, see section 4.7). In fact, the step from a comparative risk assessment towards a cost-benefit analysis is relatively small, considering that expected costs and benefits have already been analysed in section 6.3. P:\65775A\3_Pdoc\DOC\P-65775A main report final corr prepared for PDF.DOC .
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Risk Analysis of Sea Traffic in the Area around Bornholm, 2008. - VTT

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