The Narrows / CASCADE
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Cascade link
Total exposure
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Locked
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In-window
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--
Pre-commitment
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Seafarers exposed
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--
Divert all pre-commitment
Locked
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Loaded and transiting. Bills of lading issued. Physically committed — no diversion window.
In-window
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Approaching the strait. Diversion possible but costly — each vessel tracks its own closing window.
Pre-commitment
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Liftings not yet loaded. Full optionality — zero diversion cost.
Diverted
$0
Out of chokepoint risk window. Route detail and CII impact shown per vessel.
No vessels diverted yet
Illustrative fleet dataset. Values: cargo at risk (USD). Decision windows based on simulated proximity. CII ratings per IMO MARPOL Annex VI Reg.28. The Narrows CDM methodology © 2026