Catalog / Auto & Transport / Data feed
Auto & Transport · daily ban:medium tB

Marine Traffic Auto-Carrier AIS Density near US Ports

count of vessels tagged 'vehicles carrier' class within 20nm of major US auto ports

Feed detail
Measures
count of vessels tagged 'vehicles carrier' class within 20nm of major US auto ports
Source
MarineTraffic.com public vessel map / AISHub open feed
Access
scrape-hostile
Cadence
dailyupdates once a day
Thesis
Congestion or absence of car-carrier ships is a leading physical indicator of import supply chain stress before customs data is released
Maps to
Import OEM inventory, freight rates
Crowdedness
contested
Tier
tB
Ban-risk
ban:medium
Where this stands

This is a catalogued data feed with a research idea attached, not a validated edge. Being listed here means it has a specific source and a one-sentence causal mechanism mapped to what it should move — it doesn’t mean it has cleared the five-stage validation gate (point-in-time hygiene, out-of-sample holdout, multiple-testing correction, and the portfolio-layer backstop). As of today, every score on this site is prior-only; zero signals in the catalog have been promoted to “measured” status. See the methodology page for the full validation process and current counts.

Browse the rest of Auto & TransportVehicle registration, dealer-lot, and transport-utilization signals ahead of auto-sales and freight prints.