Trimtabist
The US Trade Ledger — every US container gateway, every partner country, every month. Census-recorded, AIS-verified.
TT-009 · Berth queueing

Hours alongside berth by gateway

tt009.gateway.berth-hours observed

Time alongside a berth — the denominator of the UNCTAD/World Bank waiting rate.

We pulled this number.

STATUS: WITHDRAWN · SINCE 1970-01 · RETURNS WHEN THE CONDITION BELOW IS MET

WINDOW-CLIPPED. Berth durations are floored by the length of the archive, not measured: 34% of berth hours sit in stops reading the full archive length, where a genuine container call runs 12-48h. Inflates the figure and so deflates the waiting rate. Usable once the archive is long relative to a call. We will not serve data we cannot stand behind, so this page stays up but the numbers do not.

More on the practice: withdrawn data.

Unit
hours
Evidence
EVIDENCE: OBSERVED
Tempo
TEMPO: SHORT
Covers
2026-07-26 → now

We watched it happen: our own AIS receivers (via the aisstream.io terrestrial network), our timestamps, our archive.

Cite this

In print: Hours alongside berth by gateway, per the Trimtab US Trade Ledger, an independent mirror of Own AIS receivers, via the TT-001 archive (retrieved 2026-08-06) — trimtabist.com/series/tt009.gateway.berth-hours
For the record: Trimtab TT-009 Berth queueing, "Hours alongside berth by gateway" (retrieved 2026-08-06).
Trimtabist TT-009 Berth queueing, own AIS receivers, 10 US container gateways. Method: berthing/METHOD.md. Grade: observed.
Licence CC BY 4.0

This address is permanent. If this figure is revised or corrected, the change is printed here with its size.

Machine readable

Updated: 2026-08-06 (regenerated on every request from the live registry)
/series/tt009.gateway.berth-hours.csv — tidy long format
/series/tt009.gateway.berth-hours.metadata.json — provenance, coverage, citation
POST /mcp — query_series, describe_series