A methodology to define risk matrices – Application to inland water ways autonomous ships

dc.contributorAalto Universityen
dc.contributor.authorBolbot, Victoren_US
dc.contributor.authorTheotokatos, Gerasimosen_US
dc.contributor.authorMcCloskey, Jamesen_US
dc.contributor.authorVassalos, Dracosen_US
dc.contributor.authorBoulougouris, Evangelosen_US
dc.contributor.authorTwomey, Bernarden_US
dc.contributor.departmentDepartment of Mechanical Engineeringen
dc.contributor.groupauthorMarine Technologyen
dc.contributor.organizationUniversity of Strathclydeen_US
dc.contributor.organizationMaritime & Coastguard Agencyen_US
dc.description.abstractThe autonomous ships’ introduction is associated with a number of challenges including the lack of appropriate risk acceptance criteria to support the risk assessment process during the initial design phases. This study aims to develop a rational methodology for selecting appropriate risk matrix ratings, which are required to perform the risk assessment of autonomous and conventional ships at an early design stage. This methodology consists of four phases and employs the individual and societal risk acceptance criteria to determine the risk matrix ratings for the groups of people exposed to risks. During the first and second phase, the required input parameters for the risk matrix ratings based on the individual risk and societal risk are calculated, respectively. During the third phase, the risk matrix ratings are defined using input from the first and second phases. During the fourth phase, the equivalence between the different types of consequences is specified. The methodology is applied for the case study of a crewless inland waterways ship to assess her typical operation within north-European mainland. The results demonstrate that the inclusion of societal risk resulted in more stringent risk matrix ratings compared to the ones employed in previous studies. Moreover, the adequacy of the proposed methodology and its effectiveness to provide risk acceptance criteria aligned with societal and individual risk acceptance criteria as well as its applicability to conventional ships are discussed.en
dc.description.versionPeer revieweden
dc.identifier.citationBolbot, V, Theotokatos, G, McCloskey, J, Vassalos, D, Boulougouris, E & Twomey, B 2022, ' A methodology to define risk matrices – Application to inland water ways autonomous ships ', International Journal of Naval Architecture and Ocean Engineering, vol. 14, 100457 . https://doi.org/10.1016/j.ijnaoe.2022.100457en
dc.identifier.otherPURE UUID: 70d68345-5b62-480d-b02c-209e11aacd22en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/70d68345-5b62-480d-b02c-209e11aacd22en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85132211309&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/84783729/1_s2.0_S2092678222000231_main.pdfen_US
dc.publisherThe Society of Naval Architects of Korea
dc.relation.ispartofseriesInternational Journal of Naval Architecture and Ocean Engineeringen
dc.relation.ispartofseriesVolume 14en
dc.subject.keywordRisk matrixen_US
dc.subject.keywordRisk matrix ratingsen_US
dc.subject.keywordAutonomous shipsen_US
dc.subject.keywordinland waterways shipen_US
dc.subject.keywordIndividual and societal criteriaen_US
dc.titleA methodology to define risk matrices – Application to inland water ways autonomous shipsen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi