The average roughness is the area between the roughness profile and its mean line, or the integral of the absolute value of the roughness profile height over the evaluation length. Rz: Rz is the arithmetic mean value of the single roughness depths of consecutive sampling lengths.
Â© Archivio Audiovisivi Gruppo FS Italiane. In a city renowned for its traffic, we present the Leonardo Express. This non-stop First Class rail service from Leonardo da Vinci Airport, also known as Rome Fiumicino Airport, goes to Romeâs Termini train station in the heart of downtown.
A Leonardo Express train leaves every half hour in each direction. From Rome Termini: Trains to the airport start at 5:52 in the morning, with trains running at 22 and 52 minutes after the hour. The last train of the day departs at 22.52 (10:52pm).