ATAC Azienda per la mobilità di Roma Capitale S.p.A. (lit. 'Agency for Mobility in Rome Capital JSC'; formerly Azienda Tramvie e Autobus del Comune di Roma; lit. 'Tramway and Bus Agency of the City of Rome') is an Italian publicly owned company running most of the local public transportation services, paid parking and incentive parking lots in Rome. More specifically, the company handles, on behalf of Roma Capitale Authority, the entire tramway, trolleybus network and metro lines, as well as most of the bus lines in the city. ATAC S.p.A., with its 2,200-kilometer-wide public transport network, its over 8,500 busses and 70,000 parking stalls, is currently one of the biggest public transportation companies in Europe and the largest in Italy.
Founded in 1909 as AATM (Autonomous Municipal Tramway Company) in a bid to municipalise public means of transport in Rome, the company was reformed for the first time in 2000, when it was split into two separate components and turned into a mobility agency for the purpose of planning and coordinating public and private mobility in Rome. It was reorganised once again in 2010, when it was joined with the other two companies, Trambus and Met.Ro., both founded in 2000, back then also involved in public transportation in the city.
It participates, together with Cotral and Trenitalia, in the integrated Metrebus Roma fare system.
Contents
Public transport in Rome before 1909
Before 1909, public transportation in Rome, in contrast with other services such as waste collection, was not seen as a service that had to be directly provided, for free or upon payment of reduced fares, by public authorities. As a result, the first means of transport in Rome were offered after the beginning of the second half of the 19th century directly by private entrepreneurships, with the provision of carriages similar to those used by post delivery services, towed by either one or two horses and typically called omnibuses.
The first omnibus line in Rome was activated, probably around Jun 1845 as some sources suggest, to connect Piazza Venezia to Saint Paul Outside the Walls. On July 7, 1956, after the inauguration of the railway between Rome and Frascati (which was also the first railway owned by the Holy See), a new omnibus route between Piazza Venezia and the new train station, temporarily based in Porta Maggiore, was rolled out.
In spite of the many peculiarities pertaining to the private management of public means of transport in Rome during the 19th century, it is important to point out that the provision of omnibus lines was strictly regulated by the Holy See, that in fact, to promptly address this matter, issued the "Vehicle and other mean of transport Regulation" on July 30, 1857. According to this document, omnibus drivers had to own a specific license issued by the Municipality of Rome, along with a relevant authorisation provided by the Police General Directorate. In addition to that, omnibuses could only stop in specific areas and squares, also mandated by the ordinance.
The first omnibus service offered in its entirety within the residential area of Rome was inaugurated on February 20, 1866, connecting Piazza del Popolo to St. Peter's Square.
After 1870, when Rome was annexed to the rest of the state as a result of the Breach of Porta Pia, the first regulation concerning public means of transport within the capital was issued by the municipal administration in 1874, regulating the issue of licenses to both carriages (roughly equivalent to modern taxis) and omnibuses, as well as requirements for drivers, their conduct and standard characteristics of vehicles.
History
At the turn of the century, it was already clear that a private management of public means of transport was, in actual facts, beneficial to neither municipalities nor customers. As a matter of fact, the first could not take advantage of the revenues deriving from the service, neither could the latter benefit from lower fares if compared with the ones provided by private companies.
As a result, on March 29, 1903, Giolitti, an Italian politician and former Prime Minister, promoted a law commonly referred to as “Giolitti law on municipalisation” which regulated, for the first time in the history of the Kingdom of Italy, the management of public local services and the municipalisation thereof. This law, with many changes and integrations implemented over the years, is still partially in force after more than a century since its publication, even in the context of the Republic of Italy.
In the light of this newly-come facilitation of the process of municipalisation of a company allowed by the so-called “Giolitti law”, on May 13, 1908 Ernesto Nathan, at the time mayor of Rome, presented to the municipal council of the city a proposal for the “Creation and exercise of new tramway lines by the municipality”. This document didn't only thoroughly present the project and its peculiarities, but it also carried out an insightful analysis of the public transportation history in Rome coming to the foregone conclusion that shortages of services as well as other disruptions were mainly caused by the almost monopoly that the “Roman Tramways and Omnibus Company” (S.R.T.O) had hitherto gained. This proposal would shortly be followed by a more tangible “Municipal Tramway Network Plan” devised by the Technology Assessor Giovanni Montemarini, which was discussed and subsequently unanimously approved on March 20, 1908. After three years, on March 21, 1911, the first line connecting Piazza Colonna to the area of S. Croce was inaugurated.
After a while, by the end of 1908, also a “Municipal Electric Company” replacing the previously privately owned counterpart had been created, so as to provide not only the facilities but also the motor power needed for public means of transport to properly operate at a much lower price for the municipality itself. As a matter of fact, this municipalisation process led to a significant reduction in the price of tickets for members of the working class: a regular tram ticket cost 10 cents - much less than fares provided by S.R.T.O. - which was further reduced to 5 cents for workers between 5 and 8 A.M.
Tram services
The following tram routes are operated by ATAC. All of them are considered urban routes (U letter and blue sign).
Piazzale Flaminio-Piazza Mancini
Roma Trastevere railway station-Valle Giulia
Termini-Piazza dei Gerani
Casaletto-Piazza Venezia
Termini-Togliatti
Risorgimento/Piazza San Pietro-Piazza dei Gerani
Tram-train
Rome-Giardinetti railway (The line closed in April 2026 to undergoing a transformation to a tram line).
Trolleybus services
Rome's trolleybus services is made up of three lines and is also managed by ATAC.
60 Piazza Venezia–Largo Pugliese (technically not a trolleybus route, but uses trolleybuses on a few runs, using the overhead wires of route 90)
74 Laurentina metro station–Via Rita Brunetti
90 Termini station–Largo Labia
Planned lines:
72 Laurentina–Via Guglielmo Guasta (planned for eventual conversion to trolleybus; currently still served by buses)
73 Piazzale dell'Agricoltura–Via Guglielmo Guasta (planned for eventual conversion to trolleybus; currently still served by buses)
Underground services
Rome's underground is made up by three lines and is also managed by ATAC.
Line A: Battistini (Rome Metro)-Termini-Anagnina (Rome Metro)
Line B: Laurentina (Rome Metro)-Termini-Rebibbia (Rome Metro)
Line B1: Laurentina (Rome Metro)-Termini-Jonio (Rome Metro)
Line C: Colosseo (Rome Metro)-Monte Compatri-Pantano (Rome Metro)
Urban bus services
ATAC, Autoservizi Troiani, Tuscia, ATR and BIS operates various bus routes around Rome. They are identified as Urban (U), Esatta (E), and Express (X).
0-99
H Termini-Dei Capasso
16 XX Settembre-Costamagna
23 Piazzale Clodio-Pincherle/Parravano
31 Piazzale Clodio-Laurentina
32 Ottaviano/Piazza San Pietro-Saxa Rubra Railway station
33 Piazzale Clodio-Lenin
33D Bravetta/Scrovegni-Montalcini (Scholastic Diverted Route)
34 Circular Route Paola
38 Termini-Porta di Roma
44 Montalcini-Teatro Marcello
46 Piazza Venezia-Monte Mario Railway Station
46B Battistini/Soria-Rosi
49 Piazza Cavour-San Filippo Neri Hospital
52 Circular Route Archimede-Tritone/Fontana di Trevi
53 Circular Route Piazza Mancini-Tritone/Fontana di Trevi
61 Balsamo Crivelli-Villa Borghese/Washington
62 Roma Tiburtina railway station-Roma San Pietro railway station
63 Piazza Monte Savello-Rossellini
64 Termini-Roma San Pietro railway station
66 Termini-Marx
69 Piazzale Clodio-Largo Pugliese
100-199
100 Circular Route Porta Pinciana-Via del Corso
104 Circular Route Parco di Centocelle-Malatesta
105 Circular Route Parco di Centocelle-Termini
105L Circular Route Parco di Centocelle-Pigneto
106 Grotte Celoni-Parco di Centocelle
107 Mondavio-Grotte Celoni
111 Circular Route Roma Tiburtina railway station
113 Circular Route Largo Preneste
115 Circular Route Paola
117 Circular Route Piazza San Giovanni in Laterano
118/118D Circular Route Appia/Via dei Quintili
119 Circular Route Piazza Venezia
128/128L Crocco-Baldelli
135 Salaria/Piombino-Roma Tiburtina railway Station
146 Mombasiglio-Pineta Sacchetti/Gemelli
160 Montagnola-Villa Borghese/Washington
163 Rebibbia-Verano
168 Largo Maresciallo Diaz-Roma Tiburtina railway station
170 Termini-Piazzale dell'Agricoltura
188 Circular Route Largo Maresciallo Diaz
200-299
200 Piazza Mancini-Prima Porta Railway Station
201 Piazza Mancini-Conti Antonio/Pullè
201D Piazza Mancini-Venezuela/India (Scholastic Diverted Route)
211 Roma Tiburtina railway station-Cimone/Monte Acero
211F Cimone/Monte Acero-Pietralata
213 Cinecittà-Largo Preneste
218 Porta San Giovanni-Ardeatina/Scuola Padre Formato
223 Termini-La Giustiniana Railway Station
226/226D Piazza Mancini-Grottarossa/Istituto Asisium
228 Circular Route Roma Trastevere railway station
230 Moschea/Forte Antenne-Sacro Cuore di Maria/Euclide
235 Largo Labia-Bressanone/Sant'Agnese Annibaliano
246 Cornelia-Malagrotta
246P Cornelia-Castel di Guido-Aurelia (Prolonged Route)
247 Roma Aurelia railway station-Cipro (Rome Metro)
252 Circular Route Policlinico (Rome Metro)-Acqua Acetosa Railway Station
280 Piazza Mancini-Partigiani
300-399
301 Giulio Cesare/Lepanto-Grottarossa/Istituto Asisium
303 La Giustiniana Railway Station-Prima Porta Railway Station
309 Santa Maria del Soccorso-Roma Tiburtina railway station
310 Termini-Vescovio
311 Rebibbia-Largo Valsabbia
313 Torre Maura-Longoni
313D Longoni-Largo Preneste (Scholastic Diverted Route)
314 Largo Preneste-Rotello
319 Circular Route Balsamo Crivelli
334 Grottarossa ATAC Depot-Baseggio
336 Val d'Ala-Quarrata
337 Pelagosa-Via Manzoni/Tor Lupara
338/338D Val d'Aosta/Nomentana Railway Station-Marmorale
339 Circular Route Porro Lambertenghi
340 Dante da Maiano-Marmorale
340D Dante da Maiano-Eretum (Prolonged Scholastic Route)
341 Ponte Mammolo-Sassofeltrio/Fidene Railway Station
343/343D Ponte Mammolo-Valtournanche
344/344D Eretum-Nuovo Salario Railway Station
349 Circular Route Porro Lambertenghi
400-499
404/404D Rebibbia-San Giovanni in Argentella
409 Arco di Travertino-Roma Tiburtina railway station
412 Adria-Olevano Romano
424 Circular Route Ponte Mammolo
435 Porta di Roma-Val di Lanzo
435D Val di Lanzo-Dante da Maiano
437 Circular Route Rebibbia
441 Roma Tiburtina railway station-Casale Rocchi
443 Circular Route Rebibbia
444 Ponte Mammolo-Bonifacio F.P.
445 Bologna-Curioni
446 Cornelia-Piazza Mancini
447/447D Circular Route Rebibbia
448 Circular Route Balsamo Crivelli
450 Monti Tiburtini/Pertini-Alessandrino
451 Ponte Mammolo-Cinecittà
490 Cornelia-Roma Tiburtina railway station
492 Cipro (Rome Metro)-Roma Tiburtina railway station
495 Roma Tiburtina railway station-Valle Aurelia
500-599
500 Anagnina-Torre Angela
502 Carnevale-Cinecittà
503 Circular Route Anagnina
504 Circular Route Anagnina
505 Circular Route Anagnina
506 Anagnina-Grotte Celoni
507 Anagnina-Grotte Celoni
508 Mondavio-Ponte Mammolo
509 Anagnina-Fosso del Cavaliere/CNR
515 Anagnina-Kennedy/Ciampino railway station
520 Circular Route Cinecittà (Rome Metro)-Rome Ciampino Airport
533 Circular Route Anagnina
541 Fillia-Malatesta
542 Piazza delle Camelie-Verano
543 Gardenie-Vertunni/Salcito
544 Bressanone/Sant'Agnese Annibaliano-Parco di Centocelle
545 San Luca Evangelista-Verano
546 Ago/Val Cannuta-Ipogeo degli Ottavi Railway Station
548 Roma Tiburtina railway station-Cinecittà
551 Anagnina-Vigne di Morena
552 Gerani/Rododendri-Policlinico/Tor Vergata
555 Pantano-Ponte di Nona
600-699
628 Baronio-Volpi/Farnesina
649 Roma Tiburtina railway station-Zama
654 Circular Route Campo Farnia
657 Arco di Travertino-Vignali/Scintu
660 Circular Route Arco di Travertino
663 Cirò-Largo Colli Albani
664 Circular Route Largo Colli Albani
665 Circular Route Piazza San Giovanni in Laterano
669 Circular Route Pincherle/Parravano
670 Circular Route Pincherle/Parravano
671 Arco di Travertino-Nervi/Palazzo Sport
700-799
700 Chianesi-EUR Fermi
701 Lenin-Sabbadino
702 Laurentina-Torre Sant'Anastasia
705 EUR Fermi-Piermarini
706 EUR Fermi-Rotellini
708/708D Agricoltura-Versari
709 EUR Fermi-Timocle
710 Carini-Lenin
711 Circular Route Villa Bonelli
712 EUR Fermi-Ortolani
713 Circular Route Bosco Arvali
714 Termini-Nervi/Palazzo Sport
715 Teatro Marcello-Tiberio Imperatore
716 Teatro Marcello-Viale Ballarin
719 Crocco/Mercanti-Partigiani
720 Circular Route Laurentina (Rome Metro)-Rome Ciampino Airport
721 Circular Route Castello della Cecchignola
723 Circular Route Laurentina
724 Agricoltura-Gadda
731 Valgrisi-Eroi di Rodi
731D Brunetti-Eroi di Rodi/Console (Scholastic Diverted Route)
762 Circular Route Agricoltura
763 Laurentina-Castello della Cecchignola
800-899
808/808D Dei Capasso-Eiffel
870/870D Paola-Trullo
871 Circular Route Roma Trastevere railway station
881 Paola-Avanzini/Quartiere Incis
882 Circular Route Gianicolense/Casaletto
889 Ago/Val Cannuta-Mazzacurati
892 Valle Aurelia-Aldobrandeschi
900-999
904/904D Cornelia-Bedeschi
905 Cornelia-Malagrotta
906 Casale Lumbroso/Fontebasso-Valle Aurelia
907 Cornelia-La Giustiniana Railway Station
907L Cornelia-Pineta Sacchetti/Gemelli
908/908D Grondona-Gasparri P.
910 Indipendenza-Piazza Mancini
911 Piazza Mancini-San Filippo Neri Hospital
912 Circular Route Montemario Railway Station
913 Cavour-Montemario Railway Station
913L Dalla Chiesa-Montemario Railway Station
916/916F Piazza Venezia-Andersen
916D Barellai-Mombasiglio (Diverted Scholastic Route)
980 San Filippo Neri Hospital-Pane A.
981 Candoni ATAC Depot-Cornelia
982 Roma Quattro Venti railway station-XVII Olimpiade
983 Circular Route Cornelia
985 Eugenio Frate-Roma Aurelia railway station
990 Lungotevere Marzio-Montemario Railway Station
990L Circular Route Cipro (Rome Metro)
992 Circular Route Ipogeo degli Ottavi Railway Station
01-099
01 Circular Route Piazzale Stazione del Lido
01D Circular Route Marianne (Scholastic Diverted Route)
03 Circular Route Altamura/Bertolla
04 Piazzale Stazione del Lido-Villani/Cupole
04B Circular Ostiense/Acilia Railway Station
04D Piazzale Stazione del Lido-Saponara/Fosso del Dragoncello (Scholastic Diverted Route)
05/05P Idroscalo/Bastimenti-Mar Rosso/Mar Glaciale Artico
05B Ebridi/Mercato-Mar Rosso/Mar Glaciale Artico
06 Piazzale Stazione del Lido-Wolf Ferrari/Bazzini
07 Cristoforo Colombo Railway Station-Litoranea/Villaggio Tognazzi
08 Antifane/Isola 46-Monti San Paolo/Conforti
09 Circular Route Castel Bolognese/Vitinia Railway Station
011 Circular Route Umberto I/Castello
012 Circular Route Ostiense/Acilia Railway Station
013 Nino Taranto-Mellano/Reggiolo
014 Piazzale Stazione del Lido-Antifane/Isola 46
016 Monti San Paolo/Conforti-Antifane/Isola 46
016F Monti San Paolo/Conforti-Torcegno/Castel Porziano (Public Holidays Only)
C1
C1 Circular Route Montebello Railway Station-Prima Porta Cemetery
Express bus services
0-99
20 Anagnina-Cambellotti
20L Circular Route Anagnina (Limited Route)
30 Piazzale Clodio-Laurentina
40 Circular Route Termini
51 Circular Route San Giovanni in Laterano-Colosseo-Piazza Venezia-Tritone/Fontana di Trevi
80 Piazza Venezia-Porta di Roma
90 Termini-Labia park
91 Circular Route Battistini
100-199
120F Recanati-Villa Borghese/Washington (Public Holidays Only)
150F Tonino Bello-Villa Borghese/Washington (Public Holidays Only)
180F Dalla Chiesa-Mazzacurati (Public Holidays Only)
190F Piazza Venezia-Mombasiglio (Public Holidays Only)
Exact bus services
C1-C19
C2 Termini-Flaminio Cemetery
C3 Roma Tiburtina railway station-Flaminio Cemetery
C4 Piazzale Stazione del Lido-Flaminio Cemetery
C5 Piazza delle Camelie-Montebello Railway Station
C6 Baldelli-Flaminio Cemetery
C7 Laurentina-Flaminio Cemetery
C8 Baldelli-Laurentino Cemetery
C9 Romanisti/Marforio-San Vittorino
C11 Cinecittà-Laurentino Cemetery
C13 Piazzale Stazione del Lido-Laurentino Cemetery
C19 Piazzale Stazione del Lido-Ostia Antica Cemetery
Night bus services
Urban railways and underground replacement services
nMA Anagnina-Battistini/Soria
nMB Laurentina-Rebibbia
nMB1 Termini-Jonio
nMC Piazza Venezia-Pantano
nME Piazza Venezia-Lido di Ostia Centro Railway Station
Other lines
n551 Circular Route Anagnina
n90 Piazza Venezia-Montegiberto/Piagge
n46 Termini-Monte Mario Railway Station
n913 Piazza Venezia-Tarsia
n70 Piazzale Clodio-Termini
n8 Dei Capasso-Termini
n716 Termini-Laurentina
n3d Circular Route Piazzale Ostiense/Piramide
n3s Circular Route Piazzale Ostiense/Piramide
n5 Piazza Venezia-Togliatti/Palme
n543 Piazza Venezia-Vertunni/Salcito
n92 Termini-Sempione
n719 Roma Trastevere railway station-Candoni ATAC Depot
n98 Termini-Mazzacurati
n781 Roma Trastevere railway station-Magliana/Scarperia
n409 Roma Tiburtina railway station-Colli Albani
n11 Piazza Venezia-Grotte Celoni
n904 Piazza Venezia-Bedeschi
n705 Laurentina-Piermarini
n66 Termini-Marx
n041 Roma Tiburtina railway station-Alba Adriatica
n200 Piazza Mancini-Prima Porta Railway Station
Bus fleet
Urban buses, midbuses, and minibuses
48-49 Tecnobus Gulliver U520 (not on route services, but operating as mobile ticket offices)
241-270 Iveco Daily Indcar Mobi
631-690 Tecnobus Gulliver U520 ESP New
701-800 Mercedes-Benz O530 C2 Citaro Hybrid (under delivery)
1301-1320 IIA Menarinibus Citymood 10
1642 Iveco 200E.9.27 Europolis
1721-1754, 1756–1778, 1780-1799 Autodromo (CAM) Alè (2 doors)
2001-2070 Irisbus 200E.9.13 Europolis
2101-2175 IIA Menarinibus Citymood 12 (2 doors)
2201-2241 IIA Menarinibus Citymood 12 (3 doors)
2301-2325 IIA Menarinibus Citymood 12 CNG (2 doors)
2401-2466 IIA Menarinibus Citymood 12 CNG (3 doors)
3001-3206 Irisbus Citelis 12
3301-3430, 3471-3485 Iveco Bus Urbanway 12
3721-3954 Iveco 491E.12.29 CityClass Cursor
4101-4500 Irisbus 491E.12.27 CityClass Cursor CNG
4501-4524 Irisbus Citelis 12 CNG
5001-5500 Iveco 491E.12.29 CityClass Cursor
Trolleybuses
These are used on Express Routes 60 (occasionally) and 90, and on Urban Route 74:
8501-8530 Solaris Ganz Trollino II 18
8601-8645 BredaMenarinibus Avancity+ S HTB
The BredaMenarinibus Avancity+ HTB were part of a controversy of misuse of public funds by the Gianni Alemanno's and Ignazio Marino's mayoral terms. In fact, they had been originally purchased in 2009 to operate into a new trolleybus line at the EUR, but had remained unused inside the Tor Pagnotta bus depot for years, before making their official debut in 2016 on routes 60 and 90 and, since 2019, on route 74.
Interurban buses and buses for private hire
1851 DAF SB4000 Dallavia Palladio TH
6001-6183 Mercedes-Benz O530 Citaro NÜ
Urban bendy buses
401-531 Irisbus Citelis 18 EEV
551-590 Iveco Urbanway 18
Former bus and bendy bus fleet
01-80 Lancia 703.04 Pistoiesi (demolished)
101-109, 158–172, 241-275 Lancia 718.301 Esagamma Portesi (demolished)
110-118, 143-157 Lancia 718.301 Esagamma SEAC (demolished)
119-142, 173-240 Lancia 718.301 Esagamma Pistoiesi (demolished)
276-301 Lancia 718.241 Esagamma Portesi (demolished)
1600-1629, 1720-1744 Fiat 314 Portesi
no. 1605-1613 and 1725 were sold to Rossi Bus Autoservizi Roma in 1992
no. 1614, 1722 and 1736 were sold to Corsi e Pampanelli Roma in 1992
the rest were demolished
1700-1719 Fiat 314 Menarini
1705 and 1715 were sold to CAT Tivoli in 1986
1708 and 1716 were sold to SAP Guidonia in 1988
the rest were demolished
1778-1797 Fiat 414 Cansa (demolished)
2735-2967 (only odd numbers) Fiat 410 OM
no. 2745, 2779, 2791, 2803 and 2825 were sold to the Pomezia municipality in 1975 and 1976
the rest were demolished
2969-2975 (only odd numbers) Fiat 410 Viberti (demolished)