VISIR is a numerical model for operational ship voyage planning. It has been developed from scratch at CMCC since 2012. VISIR was based on a graph-search method and to make use of dynamic meteo-ocean fields. VISIR was designed to work even in coastal and archipelagic areas. It was validated versus both analytical solutions, and vs. a PDE-based path planning model. There are two main versions of this model: VISIR-1, coded in matlab, and VISIR-2, in python.
VISIR-1 powers a service for on-demand route optimization in the Mediterranean Sea (www.visir-nav.com). VISIR-2 powers a service for mass computation of least-CO2 routes in the Adriatic Sea (www.gutta-visir.eu)
The word “VISIR” is a trade mark of CMCC (https://www.euipo.europa.eu/)
VISIR is free and open software, and is distributed from http://www.visir-model.net/ where also news, publications, and information on its funding projects can be retrieved.