The Milan trolleybus system () is part of the
public transport
Public transport (also known as public transit, mass transit, or simply transit) are forms of transport available to the general public. It typically uses a fixed schedule, route and charges a fixed fare. There is no rigid definition of whic ...
network of
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
,
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
.
In operation since 1933, the system presently comprises four routes.
It is the second-oldest trolleybus system in Europe, after
that of Lausanne, and the fifth-oldest in the world.
[''Trolleybus Magazine'' No. 343 (January–February 2019), p. 30. National Trolleybus Association (UK). .]
History
The first trolleybuses were introduced in Milan as vehicles operating exclusivly within the 1906 world fair, at Piazza D'Armi, a plaza which has since been demolished and replaced by the
Citylife district.
The first proper trolleybus system was established in Milan in 1933, with the opening of the short route 81 (Piazza Spotorno – Piazza
Dergano).
In subsequent decades, the system developed rapidly, with the opening of radial and tangential routes. The new external circular route (originally CE (''circolare esterna''), now 90/91) was built as a trolleybus line.
In the mid-1970s, it was intended to transform the 90/91 circular route into a
light rail line, and abandon the rest of the trolleybus network.
Many trolleybus routes were therefore converted into bus routes, and their overhead wires were removed.
Routes abandoned during the 1970s and 1980s were:
* 81 and 82 (closed 27 September 1976);
* 83 and MB (closed 25 October 1976);
* 84 (closed 6 February 1984).
* 95 (closed 20 September 1977);
* 96/97 (closed 5 March 1979);
In subsequent years, following the abandonment of the proposal for the 90/91 tram line,
there were no more interventions on the system, except for some limited changes to the routes.
Currently, efforts are focused on reducing journey times, with the construction of dedicated lanes, and the provision of higher quality busses, which replaced all instances of the older trollybus models.
There are no plans to expand the system.
Service

The four routes are:
* 90 clockwise circle line (Viale Isonzo - Lotto M1 - Viale Isonzo);
* 91 counter-clockwise circle line (Viale Isonzo - Lotto M1 - Viale Isonzo);
* 92 Viale Isonzo -
Bovisa
Bovisa (, ) is a district (''quartiere'') of Milan, Italy, located north of the city center, in the Zone 9. The name is supposedly derived from the Italian word ''bove'', meaning ''ox'', as the area developed from an ancient rural settlement.
Hi ...
FN;
* 93 Viale Omero -
Lambrate M2.
Fleet
Past fleet
The fleet comprised many different types of trolleybuses during the 20th century, including many vehicles built by
Alfa Romeo
Alfa Romeo Automobiles S.p.A. () is an Italian carmaker known for its sports-oriented vehicles, strong auto racing heritage, and iconic design. Headquartered in Turin, Italy, it is a subsidiary of Stellantis Europe and one of 14 brands of mu ...
and
Fiat
Fiat Automobiles S.p.A., commonly known as simply Fiat ( , ; ), is an Italian automobile manufacturer. It became a part of Fiat Chrysler Automobiles in 2014 and, in 2021, became a subsidiary of Stellantis through its Italian division, Stellant ...
and smaller batches built by other manufacturers, such as
Isotta Fraschini
Isotta Fraschini () is an Italian luxury car manufacturer, also producing trucks, as well as engines for marine and aviation use. Founded in Milan, Italy, in 1900 by Cesare Isotta and the brothers Vincenzo, Antonio, and Oreste Fraschini, in 195 ...
.
The world's first
articulated
An articulated vehicle is a vehicle which has a permanent or semi-permanent coupling in its construction. This coupling works as a large pivot joint, allowing it to bend and turn more sharply. There are many kinds, from heavy equipment to buse ...
trolleybus was a prototype built in 1939 for the Milan system.
It had an Isotta Fraschini chassis, a body by Stanga, and
TIBB electrical equipment, and it was only able to bend vertically, not horizontally.
The following types were still in service during the 21st century
but are retired now:
* 70
Socimi
Società Costruzioni Industriali Milano, better known as Socimi, was an Italian manufacturing company based in Milan. It was a manufacturer of trams, metro trains; traction motors for these and for trolleybuses; and bodies for motorbuses and tro ...
8820
trolleybus
A trolleybus (also known as trolley bus, trolley coach, trackless trolley, trackless tramin the 1910s and 1920sJoyce, J.; King, J. S.; and Newman, A. G. (1986). ''British Trolleybus Systems'', pp. 9, 12. London: Ian Allan Publishing. .or troll ...
es on Fiat 2470.12 chassis (nos. 901–970), built in 1983–1985.
Many were sold or dismantled in 2008/2009 (ATM sold 23 vehicles to
Ruse, Bulgaria
Ruse (also transliterated as Rousse, Russe; ) is the fifth-largest city in Bulgaria. Ruse is in the northeastern part of the country, on the right bank of the Danube, opposite the Romanian city of Giurgiu, approximately south of Bucharest, R ...
). The last units in service in Milan were withdrawn in November 2023.
[''Trolleybus Magazine'' No. 375 (May–June 2024), p. 121. National Trolleybus Association (UK). .]
* 33
Bredabus 4001.18 F04 articulated trolleybuses (nos. 200–232), built in 1992–94; last active unit (no. 230) was withdrawn in April 2024.
[''Trolleybus Magazine'' No. 376 (July–August 2024), p. 165. National Trolleybus Association (UK).]
* 8
Autodromo BusOtto (nos. 300–307), also known as MAN NGT 204 trolleybuses, as Autodromo constructed them on MAN chassis; built in 1997. By spring 2023, all had been taken out of service,
[''Trolleybus Magazine'' No. 371 (September–October 2023), pp. 209, 211. National Trolleybus Association (UK). .] and only two remained in storage.
* 33
Socimi
Società Costruzioni Industriali Milano, better known as Socimi, was an Italian manufacturing company based in Milan. It was a manufacturer of trams, metro trains; traction motors for these and for trolleybuses; and bodies for motorbuses and tro ...
F8843
articulated trolleybuses on Iveco 2480 chassis (nos. 100–132), built in 1991–1995.
Although all 33 received "Socimi" badges on the front, Socimi only completed the first unit (no. 100), and then discontinued all trolleybus production, with Macchi being hired to complete the manufacturing of the bodies and overall production of the remaining 32 vehicles.
[''Trolleybus Magazine'' No. 191 (September–October 1993), p. 131. National Trolleybus Association (UK).] By the end of 2024 all units were retired
* 10
Irisbus
Iveco Bus, formerly Irisbus, is a bus manufacturer with headquarters in Turin. Iveco Bus is now only a brand division of Iveco which is a company incorporated under Dutch law and listed on Borsa Italiana.
History Iveco (1975–1999)
In 1975 ...
Cristalis type "ETB 18" articulated trolleybuses (nos. 400–409), built in 2006–2007; only two (406/7) were still active in March 2024.
The last two were retired in mid-2024.
[''Trolleybus Magazine'' No. 378 (November–December 2024), p. 250. National Trolleybus Association (UK). .]
Current fleet
Milan's current trolleybus fleet is as follows:

* 45
Van Hool
Van Hool NV () was a Belgium, Belgian coachbuilder and manufacturer of buses, Coach (bus), coaches, trolleybuses, and Semi-trailer, trailers.
Most of the buses and coaches were built entirely by Van Hool, with engines and axles sourced from C ...
AG300T articulated trolleybuses (nos. 700–744), built 2009–2012 and purchased in three orders of 15 each. The first two vehicles entered service in April 2009
[''Trolleybus Magazine'' No. 286 (July–August 2009), p. 92. National Trolleybus Association (UK).] while the last batch of 15 (nos. 730–744) arrived between December 2011
[''Trolleybus Magazine'' No. 303 (May–June 2012), p. 70.] and May 2012.
[''Trolleybus Magazine'' No. 305 (September–October 2012), p. 119. National Trolleybus Association (UK).]
* 80
Solaris Trollino IV 18-metre articulated trolleybuses (nos. 800–879), built in 2019–2023, and delivered in two separate batches. The first thirty (800–829) entered service between May 2020
[''Trolleybus Magazine'' No. 352 (July–August 2020), pp. 148, 150. National Trolleybus Association (UK).] and June 2021. An order for 50 more (to be nos. 830–879) was placed in November 2021;
[''Trolleybus Magazine'' No. 362 (March–April 2022), p. 78. National Trolleybus Association (UK).] the first unit entered service in June 2023, and at least 29 of the 50 had entered service by February 2024.
Preserved vehicles
* 1
Fiat
Fiat Automobiles S.p.A., commonly known as simply Fiat ( , ; ), is an Italian automobile manufacturer. It became a part of Fiat Chrysler Automobiles in 2014 and, in 2021, became a subsidiary of Stellantis through its Italian division, Stellant ...
2472/Viberti articulated trolleybus (no. 548), built in 1958. Retired from regular service in 1996 and renovated in 2008.
Depots
There are presently two large trolleybus depots in Milan. The first depot is located in Viale Molise, east of the city. This depot accommodates about 70 trolleybuses and 40 articulated trolleybuses. The second depot is in the west of the city, and more specifically in Via Novara. It hosts about 40 articulated trolleybuses.
Both depots are used not only for the storage of trolley buses, but also for diesel powered buses. In contrast with the depots used solely for diesel buses, these depots are fully covered, for the better safeguarding of the fleet.
See also
*
Trams in Milan
*
List of trolleybus systems in Italy
*
Milan Metro
The Milan Metro () is the rapid transit system serving Milan, Italy, operated by Azienda Trasporti Milanesi. The network consists of five lines with a total network length of , and a total of List of Milan Metro stations, 125 stations (+2 in con ...
References
Notes
Further reading
*
*
External links
Images of the Milan trolleybus system, at ''photorail.com''
{{Urban public transport in Italy
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
Milan
Milan ( , , ; ) is a city in northern Italy, regional capital of Lombardy, the largest city in Italy by urban area and the List of cities in Italy, second-most-populous city proper in Italy after Rome. The city proper has a population of nea ...
Transport in Milan
1933 establishments in Italy