Rome’s public transport system consists of a three-line metro system, a six-line tram network, a suburban service system consisting of eight regional railways and three former concessions, a three-line trolleybus network and a road network of approximately 6,000 km, making it the most extensive in Europe.
The metro consists of three lines totalling 59.4 km and 73 stations and carries around 844,200 passengers per day and 308 million passengers per year, making it the second largest metro system in Italy after Milan.
A total of twelve railway lines pass through or lead to the city of Rome. Eight are the main ones (and have a progressive designation: FL1, FL2, FL3, etc.) and four are the special ones. Altogether, the twelve lines in Rome from a railway network of more than six hundred kilometers with 128 stations.