Post by MO4 - Setting New Offshore Standards

Three serious foot entrapment injuries at the telescoping interface of walk-to-work gangways. 2018. 2023/24. 2024. The similarities of every case: the conditions were within contractual limits. This is not bad, it's a broken metric: Hs = BS. The offshore wind industry has standardised on significant wave height as the go/no-go criterion for gangway operations. The problem is that wave height doesn't determine gangway motion. The full wave environment does, combined with vessel-specific factors: wave period, direction, swell, spreading, vessel heading, gate availability, vessel motions, and loading condition. None of that complexity is captured by a single Hs number. We executed a detailed study using numerical simulations and operational data in partnership with Mocean Offshore, conducted in accordance with DNV-ST-N001, on a representative 90m CSOV in North Sea conditions. Based on that analysis and our own modelling work, the conclusion is specific: a maximum telescoping speed of 1.3 m/s most probable maximum is a defensible, measurable, forecastable safety limit. One that correlates with actual injury risk. One that can be monitored in real time and integrated into pre-operational planning. The tools exist today. Motion monitoring, vessel response modelling, real-time forecasting, all deployable now. This is not a technical issue, it's in how the industry defines and enforces limits. We've written up the full case. Link in the comments! #offshore #offshorewind #ships

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