Risk Evaluation of Maritime Autonomous Surface Ship Operations: A Formal Safety Assessment Approach (opens in a new tab)
This paper introduces a Formal Safety Assessment (FSA) framework to evaluate risks in Maritime Autonomous Surface Ship (MASS) operations, addressing gaps in traditional methods that rely on crewed-ship data. It establishes a hierarchical risk indicator system across five dimensions—ship machinery, human factors, environment, information technology, and management—using frequency and severity indices to classify risks. A case study with 50 experts found MASS operations fall within the "ALARP" (tolerable) risk region, with environmental, IT, and machinery factors posing the highest risks. Key contributors to overall risk include environmental perception, navigation decision-making, and communication capability.