Numerous national roads, highways or dual carriageways ("autovías"), and motorways or freeways ("autopistas") pass through the city, connecting it with all the surrounding major cities. A project is underway to construct a new highway and a new freeway originating in the city. The first, A-68 or "Autovía del Ebro" (Ebro Highway), will connect Miranda to Aragón via the Ebro valley. The second, AP-69 or "Autopista Dos Mares" (Two Seas Freeway), will connect Miranda to the Cantabrian coastal plain via the Merindades.