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.
Civitavecchia into Central Rome by Train. There is a train station in the town of Civitavecchia with several trains per hour going to Rome. Local trains take you to Rome's central station (Roma Termini) in about an hour and 20 minutes. Faster trains can make it in under an hour.