A computer model of the transport network in the eastern Pyrenees is drawn up. in association with a mathematical model of cost and speed of various means of transport and types of via. Results of these models include optimum routes for imports and exports to this region. and a breakdown of costs and transport times in each direction. https://www.alarecre.com/American-Flag-Color-Block-iPhone-14-Waterproof-Case-p12619/