Critical Analysis of Tanker Op-Ex Adjusting Crew Synthesis, Automation Level and Maintenance

Dimitrios V. Lyridis, Nikolaos P. Ventikos, Panayotis G. Zacharioudakis, Harilaos N. Psaraftis

Research output: Contribution to conferencePaperResearchpeer-review


In this paper we will present a critical analysis concerning tanker operating expenses. In this context, we try to explore various possibilities for the combined adjustment of automation level and crew synthesis, in order to fulfill maintenance (operational) needs of tankers. Precedent research results have shown that by increasing vessel automation level a substantial decrease of crew synthesis is feasible, in terms of watchkeeping and safety redundancy; hence, a potential window for decrease of op-ex is produced. The crucial issues/constraints regarding the analysis for the operational viability are maintenance man-hours in accordance with policy issues on on-board workload and fatigue, and external costs in order to cover all corresponding tanker needs. This paper examines all recorded aspects of the specific problem and proposes a methodological framework. This is achieved by using certain statistical, analytical and simulation techniques so as to come up with solid results and conclusions. Main motivation for this paper is the oncoming increase of tanker build-in technological innovations versus the slowly changing policy for vessel crew synthesis. Finally, we will conclude this paper with interesting comments
arisen from the aforementioned tasks.
Original languageEnglish
Publication date2004
Number of pages16
Publication statusPublished - 2004
Externally publishedYes
EventInternational Logistics Congress 2004: Developing Value Networks through Logistics and Transport - Izmir, Turkey
Duration: 2 Dec 20043 Dec 2004


ConferenceInternational Logistics Congress 2004
Internet address


  • Maritime economics
  • Human aspects
  • Simulation models
  • Maritime policy
  • On-board operations


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