The line FR5 is one of the Lazio regional railways. Connects to 80 km, Civitavecchia to Rome along the Tyrrhenian railway. In 2009, 1,830,925 were made train * km (including the trains to / from Montalto di Castro and Grosseto).
The rolling stock used for the regional is mainly composed of carriages Vivalto. For regional fast using instead coaches UIC-X, or MDVE MDVC. In both cases are predominantly drawn locomotives E.464.
The numbering of the line (FR5) only appears in the information material (maps of public transport) and in the signs of some stations. In the scoreboards of the stations is only the abbreviation R or RV and the numbering of the race.