the transport company ATM (Azienda Tranvie Municipali) inaugurates its first commercial connection from the central Piazza Colonna to the working-class district of Santa Croce in Gerusalemme. With the opening of line III (as it was called to distinguish it from the SRTO lines, company that managed most of the urban network under an almost monopoly regime), the Municipal Council, led by the mayor Ernesto Nathan, launches the “Municipal tram network project” which gradually managed to redeem the entire existing network.
The first municipal transport company of Rome, AATM (Autonomous Municipal Tramway Company), is established; over the years it changes name several times: ATM, ATG, ATAG and finally, in 1944, it becomes ATAC
The first three tram lines enter service
The Roma-Lido Railway makes its inaugural journey from Rome to the coast
Inauguration of The Rome-Viterbo Railway
Opening of Rome’s first metro line: Line B, linking the Roma Termini railway station to the EUR district
25 years later, opening of the second metro line: Line A, connecting Ottaviano to Cinecittà
Inauguration of a new section of Metro Line B between the stations Termini and Rebibbia
Opening of a new section of Metro Line A between the stations Ottaviano and Valle Aurelia, extended to the station Battistini a year later
Merger of the former companies Trambus (surface service operator) and Met.Ro. (metro and regional rail service operator) into Atac S.p.A., that becomes the main public transport company of the Capital
The first section of the new Metro Line B1 branch enters service between the stations Bologna and Conca d'Oro
In June, opening of the new Metro Line C: first driverless metro of the Capital
Opening of a new section of Metro Line C until the stop “San Giovanni”, first archeo-station of the Capital, which allows interchange with Metro Line A.