The impact of risk control options in reducing/preventing risk in case of a flooding event

• Application of a multi-level framework for flooding risk. • Nine ship designs to test the framework. • Application of Risk Control Options to mitigate risk. • Comparison of different design solutions. Safety in case of a flooding event is a primary concern in the design process of passenger ships and should be thoroughly assessed from the initial design phases. To evaluate the risk of flooding events, an effective metric is needed to compare various design solutions. The Potential Loss of Lives (PLL) is a valuable tool for quantifying this risk from the early stages of design, enabled by a multi-level framework developed during the FLARE project, which enhances the reliability of predictions as the design progresses. This approach facilitates the examination and assessment of countermeasures, known as Risk Control Options, aimed at reducing or preventing risk in the event of flooding. This study analyses the implementation of different Risk Control Options across a sample of nine passenger ships, including cruise and Ro-Pax vessels. The analysis is conducted at various levels of fidelity in accordance with the established framework, highlighting the effectiveness of mitigation and prevention measures in reducing PLL.