
Technical Data
Overview
Rota is a municipality and town in the Province of Cádiz, Andalusia, Spain. Its surface area is 84 km2 and is bordered by the towns of Chipiona, Sanlúcar de Barrameda and El Puerto de Santa María. It is located near the city of Jerez de la Frontera and is 36 kilometers away from the provincial capital, Cádiz. It had in the year 2009 28,516 inhabitants, with a density of 339 inhabitants / km2.
Location
36.6167°N, 6.3333°W
View on Google Maps →Port Congestion
Risk & quality
A coverage-weighted blend of recorded Port-State-Control detentions, marine casualties and live congestion at Rota. Higher means more risk exposure for a ship calling here: it is a count of recorded events, not a judgement of the port's management.
Built from 33% of the three signals (scored on a single signal, treat as indicative).
Method. Each signal is normalised to 0 to 10 against an empirical cap, then blended weighting safety (detentions 0.40, casualties 0.35) above operational congestion (0.25). A port is scored only on the signals it has data for, and the weights renormalise. A missing signal is never credited as a safe 0.
Coverage. PSC and casualty data here is regional (US, UK, Canada), so most ports show only congestion and carry a low-confidence flag. Detention/casualty counts come from a country-scoped name match (≈60% of US detentions resolve); unmatched records are dropped, not force-fit.
Detention and casualty signals are screened against open port-state-control and marine-casualty records, combined with our own AIS-derived congestion. Updated Oct 15, 2026.