Integrated navigation system — safety prediction model for ship retrofit strategy

The introduction of highly integrated and automated technology into navigation systems, aiming, amongst others, to decrease personnel onboard the ship, calls for efficient tools to assess the possible impacts of this new trend on the safety levels associated with the operation of the ship. This trend has lead in recent years to the investigation of the adoption of advanced risk assessment techniques. The scope of the paper is to present a quantified safety assessment methodology that can be applied while retrofitting navigation systems. The methodology is based on the review of the IMO Formal Safety Assessment technique and consists in the development of a Safety Prediction Model for the safety assessment of the different automation/integration levels subject of a retrofit. The application presented in the paper is part of the work performed under the ATOMOS IV research project, partly funded by the DGTREN Directorate of the European Commission.