Autostrada A24

The Autostrada A24, or Autostrada dei Parchi, is a motorway connecting Rome to Teramo. Starting at the Grande Raccordo Anulare, the A24 runs broadly north-east past L'Aquila and through a 10 km tunnel under the Gran Sasso before reaching Teramo. Strada dei Parchi S.p.A. currently manages the route.

It is constructed in an almost completely hilly and mountainous territory with a complex orography. For this reason, the motorway required the adoption of daring civil engineering solutions, with extensive stretches utilising viaducts and 42 tunnels including the double tunnel of the Gran Sasso, whose length made it the longest double-tube road tunnel in Europe, as well as the longest road tunnel in Italy entirely in the national territory.