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Near-real-time transit deviation at the seven major global shipping passages: Suez, Bab-el-Mandeb, Hormuz, Malacca, Panama, Cape of Good Hope, and Dover Strait.
Source: IMF PortWatch Daily Chokepoints (portwatch.imf.org), 2019-present | BACI 202501 (CEPII), HS92, bilateral trade flows (retrieved 2026-04-28)
Methodology: Near-real-time (4-7 day lag). Deviation index = (7-day rolling vs 90-day prior baseline) / baseline. Trade-at-risk via bilateral BACI flows crossed with the routeChokepoints() sea-lane heuristic. Not a price or GE model. Route simplifications documented in src/lib/chokepoints.ts.