An Integrated Risk Assessment Approach andApplication to Dynamic PositioningSystem

Science many of ships accidents are the results of loss position, Dynamic Positioning (DP) system is fixed in different types of vessels to maintain its position.However there are potential hazards in DP system which need an effective risk assessment approach to deal with. In this endeavour integration two Multi Criteria Decision Making (MCDM) approaches, namely; qualitative and Fuzzy Analytic Hierarchy Process (FAHP), is proposed to overcome the shortcomings and maximize the advantages of each approach. The structure of this integrated approach is clarified then 15 potential hazard scenarios in DP system are selected as a case study where the proposed integration risk assessment approach is used to rank these scenarios in respect to eight criteria namely Frequency, Human safety, Environment, Finance and Cost, ship safety and technology, Reputation, Detectability and reduction measures. A huge amount of computer output are obtained but for space limitation only the final results are illustrated in different forms and thoroughly analysis is carried out and the rank levels forall scenarios are obtained.
Index Terms- Qualitative, FAHP, Risk assessment, Consequences, Dynamic Positioning