Italy per 1,000 people) and 4,015,000 goods vehicles circulated on the national road network. The national railway network, state-owned and operated by Rete Ferroviaria Italiana, in 2008 totalled of which is electrified, and on which 4,802 locomotives and railcars run. The national inland waterways network comprised of navigable rivers and channels in 2002. In 2004 there were approximately 30 main airports, including the two hubs of Malpensa International in Milan and Leonardo da Vinci International in Rome, and 43 major seaports, including the seaport of Genoa, the country's largest and second largest in the Mediterranean Sea. In 2005 Italy maintained a
Fiat Ferroviaria for trains and was the first (and the only one for several decades) to produce active tilting trains with the trademark of Pendolino. In Italy several classes of Pendolinos were adopted starting from 1976 (ETR 401, ETR 450, ETR 460-65, ETR 480-85 and the Alstom made ETR600. Following the success of the ETR 450 series introduced in Italy in 1988 (the 401 series introduced in 1976 consisted of only 2 trainsets and never operated regular commercial service, working more like an "on-wheel laboratory"), tilting systems including bogies, traction, electric and electronic equipment were ordered by several countries: In 2001 also