Print Email Facebook Twitter Time-Varying Risk Measurement for Ship Collision Prevention Title Time-Varying Risk Measurement for Ship Collision Prevention Author Huang, Y. (TU Delft Safety and Security Science) van Gelder, P.H.A.J.M. (TU Delft Safety and Security Science) Date 2019 Abstract We propose an innovative time-varying collision risk (TCR) measurement for ship collision prevention in this article. The proposed measurement considers the level of danger of the approaching ships and the capability of a ship to prevent collisions. We define the TCR as the probability of the overlap of ships’ positions in the future, given the uncertainty of maneuvers. Two sets are identified: (1) the velocity obstacle set as the maneuvers of the own ship that lead to collisions with target ships, and (2) the reachable velocity set as the maneuvers that the own ship can reach regarding its maneuverability. We then measure the TCR as the time-dependent percentage of overlap between these two sets. Several scenarios are presented to illustrate how the proposed measurement identifies the time-varying risk levels, and how the approach can be used as an intuitively understandable tool for collision avoidance. Subject Maneuverabilityreachability analysistime-varying collision riskvelocity obstacle To reference this document use: http://resolver.tudelft.nl/uuid:16ac8055-d50c-4fd7-bd17-088f3780bd68 DOI https://doi.org/10.1111/risa.13293 Embargo date 2021-03-07 ISSN 0272-4332 Source Risk Analysis: an international journal, 40 (1), 24-42 Part of collection Institutional Repository Document type journal article Rights © 2019 Y. Huang, P.H.A.J.M. van Gelder Files PDF Time_varying_risk_measure ... _v_7.0.pdf 2.04 MB Close viewer /islandora/object/uuid:16ac8055-d50c-4fd7-bd17-088f3780bd68/datastream/OBJ/view