Maritime & Chokepoints

Chokepoint Congestion

Chokepoint congestion is an above-normal build-up of vessel traffic waiting to transit a strait or canal, detected from AIS activity and used as an early sign of disruption.

Chokepoint congestion is an above-baseline accumulation of ships waiting to transit a strait or canal. WorldMonitor detects it from AIS activity inside each chokepoint’s bounding box and treats a congestion spike as one of its AIS disruption types.

Congestion is an early-warning signal: queues often build before a disruption becomes headline news, so a rising congestion reading at Hormuz, Suez, or Malacca can precede the trade and energy-price effects that follow.

Related terms

Maritime Chokepoint

A maritime chokepoint is a narrow passage through which a large share of global trade, energy, food, or military movement must pass, so a disruption there removes optionality from the whole system.

Automatic Identification System AIS

AIS (Automatic Identification System) is the transponder standard that broadcasts a ship’s identity, position, and course, and is the primary data source for tracking vessel traffic through chokepoints.

Strait of Hormuz

The Strait of Hormuz is the maritime chokepoint between the Persian Gulf and the Gulf of Oman through which a large share of the world’s seaborne crude oil and LNG must transit.

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