The train of outskirts of Rome (Metropolitan Railway) is managed by the Ferrovie dello Stato (FS) and can be used with tickets Metrebus (ATAC) within the urban area.
There are eight lines that are called FM, plus the corresponding number. There is a laying of 450 kilometers of roads and 79 urban stations. The most important terminal stations are: Term Y Roma Tiburtina. The FM1 has connection to Leonardo Da Vinci Airportfrom Fiumicino.
It is important that you keep in mind that the integrated tickets are not valid outside the urban area, so the airports are not included and you have to pay an additional supplement.
The schedules are from 5.30 to 23, 30 hours, approximately since it is uniform on all lines.