FL lines

FL lines
TAF train at Balduina station
Overview
Area served	Rome metropolitan area, Lazio
Locale	Rome, Lazio
Transit type	Commuter rail
Number of lines	8
Number of stations	131
Daily ridership	286,241[1]
Website	trenitalia.com
Operation
Began operation	1994
Operator(s)	Trenitalia
Infrastructure manager(s)	Rete Ferroviaria Italiana
Rolling stock	E.464, TAF, Jazz, ETR 421/521/621 Rock
Technical
System length	672 km (417.6 mi)
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	3 kV DC, overhead line
System map

The FL lines, formerly Lazio regional railways (Italian: ferrovie regionali del Lazio, also Ferrovie Laziali) consist of 8 commuter rail lines operated by Trenitalia, converging on the city of Rome. It operates as a combined suburban railway system that connects the city-centre and the outskirts of the city via a commuter rail line.^[2]

The FL network, initially made up of two lines and called FM lines (Metropolitan Railways), was formally inaugurated in 1994, following the signing of an agreement between the Lazio Region, the Municipality of Rome, the Province of Rome and Ferrovie dello Stato Italiane, aimed at implementing a new integrated transport structure in the Roman metropolitan and regional area.^[3]

Lines FL1, FL2 and FL3 function like a rapid transit service, integrated with the Rome Metro and surface transportation. The other lines (numbered from FL4 to FL8) mostly serve the suburban area of Rome and the Lazio region, and used almost exclusively for commuter traffic.