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

Risk Analysis for Sea Traffic in the Area around Bornholm
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6 Prospective Risk Assessment of Route
Specifications for Traffic to and from the
Gdańsk Bay
6.1 Hazard identification (FSA Step 1)
The hazard identification was performed during Workshop I. Its result is displayed
as a list in Appendix F.
It is common to rank hazards in a qualitative way in order to determine, which
of them deserve quantitative investigation. However, it turned out that all significant
hazards are covered by the accident models considered in the present
study (compare chapter 4). Therefore, ranking is regarded as being futile in the
present context.
6.2 Risk control options (FSA Step 3)
6.2.1 Description of the risk control measures
Danish Maritime Authority asked for assessing the effect of a possible vessel
draught limitation in the area north-east and south of Bornholm. This affects
mainly traffic related to the ports of Gdańsk, Kaliningrad and Klaipėda. The
limitations are meant to
• take all ships sailing north-east of Adlergrund with a draught between 7
and 10 m and divert them to the area south of Adlergrund (both located
south of Bornholm, as illustrated in Figure 11)
• take all ships sailing south of Bornholm with a draught above 10 m and
divert them to the area north-east of Bornholm.
The geographical arrangement is illustrated in Figure 2 at the beginning of the
report.
6.2.2 Modelling of the risk control measures
As a first step, the above-described risk control measures need to be integrated
into the model. This is done by taking the observed traffic and rearranging it
according to the traffic diversion described above.
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