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Safety consequences of crew innovation onboard shortsea ships

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Author: Post, W.M. · Langefeld, J.J.
Publisher: The Royal Institution of Naval Architects
Source:International Conference on Human Factors in Ship Design and Operation, 16 November 2011 through 17 November 2011, London, 89-97
Identifier: 445433
Keywords: Sociology · Built environment · Human · HOI - Human Behaviour & Organisational Innovations · BSS - Behavioural and Societal Sciences


We have investigated an alternative assignment of manning on board Dutch coasters to show that the current level of safety is maintained when mono disciplinary Chief Engineers are replaced by Marof: Maritime Officers, who have received education in navigational as well as engineering skills (at watch keeping level). We compared the alternative crew concept to the traditional assignment in a study involving 19 modern shortsea ships. Measurements were gathered on 311 voyages, in over 16,000 shifts and in almost 60,000 hours. The crews had to answer on a PDA questions about the specific conditions, the navigational and engineering task, and the safety outcome. The results indicate that sailing with a Marof in combination with shore support is at least as safe as sailing with a Chief Engineer. Further, the shifts went more satisfactory and the crews were less tired compared to traditional shortsea ships, which contributes to the avoidance of fatigue.