期刊
SAFETY SCIENCE
卷 110, 期 -, 页码 363-371出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssci.2018.05.002
关键词
Ship collision; Risk assessment; Bayesian rule; Least squares estimation
资金
- Portuguese Foundation of science and Technology [UID/Multi/00134/2013 - LISBOA-01-0145-FEDER-007629]
- National Key Technologies Research & Development Program [2017YFC0804900, 2017YFC0804904]
- National Science Foundation of China (NSFC) [51609194]
Collision between ships is one of the dominant types of accident in the approaches to Tianjin port, which accounts for 65% of all types of accidents. This paper presents a quantitative maritime risk assessment methodology by using Bayesian rules and least squares estimation method to identify the dominant factors that contribute to collision accidents. The approach relates accident data with traffic data by pairwise comparisons between the collision risks under different navigation conditions and different types of ships. The results indicate that small ships with lengths smaller than 100 m have a collision risk much higher than larger ships. The results also indicate that safety improvement of working ships and oil tankers is one of the most effective ways to reduce the overall collision risk. The collision probability of the ships without a pilot is about 9 times higher than those with a pilot. The analysis also shows that further steps should be undertaken to reduce risk during strong wind conditions to at least the same level of the normal conditions. The results obtained are useful for managers to support their decisions to control collision risk.
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