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.
The station is connected to the Rome's Metro line B by Tiburtina metro station. The new Tiburtina is dedicated to the traditional regional trains and to the high-speed rail services on the Milan-Naples line. The new station is expected to reach a daily ridership of over 450,000 by 2015.