The Florence–Rome high-speed railway line is a link in the Italian high-speed rail network. It is known as the ferrovia direttissima Firenze-Roma in Italian—meaning most direct Florence–Rome railway (abbreviated DD); this name reflects the naming of the Rome–Formia–Naples Direttissima opened in 1927 and the Bologna–Florence Direttissima opened in 1934. The line was the first high-speed line opened in Europe when more than half of it opened on 24 February 1977.
