Oil tanker hazards: Inaction at sea

Aerial Observations of Oil at Sea

Absence attributed to sickness in oil tanker crews.

Absences attributed to sickness were investigated in 1410 deck and engine-room crew members during a period of two years and five months. The mean frequency of absences was 0-23 per man year, with a mean duration per absence of 41 days. The absence frequency varied with both rank and place of work. Altogether 23% of deck officers serving throughout the study and 43% of engine-room ratings had o...

An oil outflow model for tanker collisions and groundings

In this paper we have developed an oil outflow model for collision and grounding accidents of tankers. The collision model explicitly links input variables such as tanker hull design (single or double), displacement and speed, striking vessel displacement and speed, and the interaction angle of both vessels to output variables: longitudinal and transversal damage extents of the tanker. Overlayi...

Oil Tanker Design Methodology Considering Probabilis- Tic Accident Damage

This paper proposes a total-system design methodology that includes four important components necessary for a systematic approach to oil tanker concept design. These are: • An efficient and effective search of design space for optimal or non-dominated designs • Well-defined and quantitative measures of objective attributes, cost and risk • An effective format to describe the design space and to...

A Bayesian Network Model for Accidental Oil Outflow in Double Hull Oil Product Tanker Collisions

This paper proposes a Bayesian belief network (BBN) model for the estimation of accidental oil outflow in a ship-ship collision where a product tanker is struck. The intended application area for this model is maritime traffic risk assessment, i.e. in a setting in which the uncertainty regarding the specific vessel characteristics is high. The BBN combines a model for linking relevant variables...