Abstract
Weather routing (WR) is a critical component of maritime operations, directly impacting fuel efficiency, voyage duration, and navigational safety. We present VFWR (VESSELFRONT Weather Routing), an optimization framework for ship weather routing based on the A* path-finding algorithm with a weather-aware heuristic incorporating real-time forecast, wave height threshold, maximum latitude constraint, no-go areas, and minimization of the duration of time within emission control area (ECA). To ensure accuracy based on the updated forecasts, re-routing is performed at six-hour intervals throughout the trip. VFWR is validated against a dataset of 100 historical voyages using hindcast weather data, while calculating optimized routes in a median of 23 seconds and consistently producing shorter distances and durations than real-world trips across all tested voyages.
"From forecast to voyage decision in seconds — with routing logic your operators can actually understand."
The work in plain English
This paper is one piece of the verification chain behind the VF Engine. Every recommendation a fleet operator sees in production traces back to a body of work like this one — published, peer-reviewed where applicable, and signed by named authors who can be reached for follow-up.
The full technical paper, including figures, tables, and the methodological appendix, is available on request. We are happy to walk through the work with technical buyers, charter parties, and underwriters who want to verify what the system actually does.
Where this lives in the engine
The findings in this paper inform weather routing decisions inside the routing pipeline. For the full picture of how data flows from sensor to bridge, see The VF Engine. For verified outcomes built on this methodology, see Case Studies.