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TheMilan Metro (Italian:Metropolitana di Milano) is therapid transit system servingMilan,Italy, operated byAzienda Trasporti Milanesi. The network consists of five lines with a total network length of 111.8 kilometres (69.5 mi), and a total of125 stations (+2 in construction), mostly underground. It has a daily ridership of about 1.4 million on weekdays.The Milan Metro is the largest rapid transit system in Italy in terms of length, number of stations and ridership; and the fifth longest in theEuropean Union and the eighth inEurope.[3]
The first line,Line 1, opened in 1964;[4][5]Line 2 opened 5 years later in 1969,[5]Line 3 in 1990,[5]Line 5 in 2013,[6] andLine 4 in 2022. There are also several extensions planned and under construction. The architectural project of the Milan Metro, created byFranco Albini andFranca Helg, and the signs, designed byBob Noorda, received theCompasso d'Oro award in 1964.[7]
The first projects for a subway line in Milan were drawn up in 1914 and 1925, following the examples of underground transport networks in other European cities such asLondon andParis. Planning proceeded in 1938 for the construction of a system of 7 lines, but this too halted after the start ofWorld War II and due to lack of funds.[8]
On 3 July 1952, the city administration voted for a project of a metro system[9] and on 6 October 1955, a new company,Metropolitana Milanese, was created to manage the construction of the new infrastructure.[8] The project was funded with₤ 500 million from the municipality and the rest from a loan. The construction site of the first line was opened inviale Monte Rosa on 4 May 1957.[8] Stations on the new line were designed byFranco Albini andFranca Helg architecture studio, whileBob Noorda designed the signage.[8] For this project both Albini-Helg and Noorda won theCompasso d'Oro prize.
The first section fromLotto toSesto Marelli (21 stations) was opened on 1 November 1964 after 7 years of construction works. Two trains adorned with Italian flags left at 10.41 a.m. and arrived at the Sesto Marelli terminus at 11.15 a.m., greeted by the notes of the national anthem and the triumphal march of Giuseppe Verdi's opera "Aida". The track was 12.5 km (7.8 mi) long, and the mean distance between the stations was 590 m (1,940 ft).[10] In the same year, in April, works on the second line started.Passengers on the network grew constantly through the first years of service, passing from 37,092,315 in 1965 to 61,937,192 in 1969.[10]
The green line from Caiazzo to Cascina Gobba (7 stations) opened five years later. During the 1960s and 1970s the network of 2 lines was completed, and both lines had 2 different spurs. In 1978, the lines were already 17.6 km (10.9 mi) and 23 km (14 mi) long respectively, with 28 and 22 stations.[10]
The first section of the third line (yellow), with 5 stations, was opened on 3 May 1990 after almost 9 years of construction works. The line opened just before theWorld Cup. The other 9 stations on Line 3 opened to the southeast in 1991, and northwest toMaciachini Station in 2004.
In March 2005, the Line 2Abbiategrasso station (south branch fromFamagosta) and the Line 1Rho Fiera station opened. Theintermediate station ofPero, on line 1, opened in December 2005. A north extension of Line 3 toComasina (4 stations) and a new south branch on the Line 2 toAssago (2 stations) opened in early 2011.
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The first stage of the Line 5 (the first automated line of the network), covering the 4.1 kilometres (2.5 mi) fromBignami toZara, in the northern part of the municipality, opened on 10 February 2013.[11] The 1.9-kilometre (1.2 mi) second stage, fromZara toGaribaldi FS, opened on 1 March 2014.[12] The 7-kilometre (4.3 mi) third stage, from Garibaldi FS to San Siro Stadio, in the west of the city, opened on 29 April 2015, with some intermediate stations not in service at that time;[13][14] as of November 2015, all the stations have been opened.
The metro replaced several interurban tramroutes of the originalSocietà Trazione Elettrica Lombarda (STEL) tramlines, in particular the Line 2 to Gessate.
In November 2022, the first six stations of the automated line 4 were opened, from Linate airport to Dateo; it was the first metro line to be inaugurated without any connection to the rest of the system, instead relying on a connection to the suburban railway network atDateo railway station;[15] the line was extended in 2023 toSan Babila, linking it to line 1,[16] and in 2024 toSan Crisforo FS, another railway station, in the city west.[17]
| date | section or station | line |
|---|---|---|
| 1 November 1964 | Lotto - Sesto Marelli |  |
| 2 April 1966 | Pagano - Gambara | |
| 27 September 1969 | Caiazzo - Cascina Gobba |  |
| 27 April 1970 | Caiazzo - Centrale | |
| 12 July 1971 | Centrale - Porta Garibaldi | |
| 4 December 1972 | Cascina Gobba - Gorgonzola | |
| 18 April 1975 | Gambara - Inganni | |
| 8 November 1975 | Lotto - QT8 | |
| 3 March 1978 | Porta Garibaldi - Cadorna | |
| 12 April 1980 | QT8 - San Leonardo | |
| 7 June 1981 | Cascina Gobba - Cologno Nord | |
| 30 October 1983 | Cadorna - Porta Genova | |
| 13 April 1985 | Gorgonzola - Gessate Porta Genova - Romolo | |
| 28 September 1986 | San Leonardo - Molino Dorino Sesto Marelli - Sesto 1° Maggio FS | |
| 3 May 1990 | Centrale - Duomo |  |
| 16 December 1990 | Duomo - Porta Romana | |
| 12 May 1991 | Centrale - Sondrio Porta Romana - San Donato | |
| 21 March 1992 | Inganni - Bisceglie | |
| 1 November 1994 | Romolo - Famagosta | |
| 16 December 1995 | Sondrio - Zara | |
| 8 December 2003 | Zara - Maciachini | |
| 17 March 2005 | Famagosta - Abbiategrasso | |
| 19 December 2005 | Molino Dorino - Rho Fiera | |
| 20 February 2011 | Famagosta - Milanofiori Forum | |
| 26 March 2011 | Maciachini - Comasina | |
| 10 February 2013 | Zara - Bignami |  |
| 1 March 2014 | Zara - Porta Garibaldi | |
| 29 April 2015 | Porta Garibaldi - San Siro Stadio | |
| 6 June 2015 | Portello | |
| 20 June 2015 | Cenisio | |
| 26 September 2015 | Gerusalemme | |
| 11 October 2015 | Monumentale | |
| 14 November 2015 | Tre Torri | |
| 26 November 2022 | Linate Aeroporto - Dateo |  |
| 4 July 2023 | Dateo - San Babila | |
| 12 October 2024 | San Babila - San Cristoforo | |
The system comprises 5 lines. All the lines run underground except for the northern part of Line 2 and the Line 2 Assago branch.
There are 9 interchange stations, each with 2 lines:Loreto (Lines 1 and 2);Cadorna (Lines 1 and 2), terminus of Ferrovienord railway network,Centrale (Lines 2 and 3), also Milan'smain train station;Duomo (Lines 1 and 3), considered the center of the city;Zara (Lines 3 and 5);Garibaldi (Lines 2 and 5), also amajor railway station;Lotto (Lines 1 and 5);San Babila (Lines 1 and 4) andSant’Ambrogio (Lines 2 and 4)
Lines run in the Milan municipality for 80% of the total length (92 stations).[18] Beside Milan, 13 other neighbouring municipalities are served:Assago,Bussero,Cassina de' Pecchi,Cernusco sul Naviglio,Cologno Monzese,Gessate,Gorgonzola,Pero,Rho,San Donato Milanese,Segrate,Sesto San Giovanni,Vimodrone. The network covers about 20% of Milan's total area.[18]
The metro network is also linked with thesuburban rail service, with 14 interchange stations: Affori FN, Cadorna FN,Dateo, Domodossola, Stazione Forlanini, Garibaldi FS, Lambrate FS, San Cristoforo FS, Lodi T.I.B.B. (with the nearby Porta Romana station), Porta Venezia, Repubblica, Rho Fiera, Rogoredo FS, Romolo and Sesto 1º Maggio.[19]
The track gauge for all lines is the1,435 mm (4 ft 8+1⁄2 in)standard gauge.Platform screen doors are present in all stations on Line 4 and Line 5 and on some stations on Line 1.
| Line | Terminals | Opened[5][6] | Latest extension | Length (km) [citation needed] | Stations | Avg. station distance (km) | |
|---|---|---|---|---|---|---|---|
| Rho Fiera /Bisceglie | Sesto 1º Maggio | 1964 | 2005 | 26.7 | 38 | 0.727 |
 | Assago Milanofiori Forum /Abbiategrasso | Cologno Nord /Gessate | 1969 | 2011 | 39.9 | 35 | 1.159 |
 | Comasina | San Donato | 1990 | 2011 | 17.3 | 21 | 0.835 |
 | Linate Aeroporto | San Cristoforo FS | 2022 | 2024 | 15 | 21 | 0.723 |
 | San Siro Stadio | Bignami | 2013 | 2015 | 12.9 | 19 | 0.763 |
Lines 2 and 3 useoverhead lines to supply the electric current to the train and are electrified at 1500V DC. Line 1, electrified at 750 V DC, uses afourth rail system, although the same line also supports overhead lines in some stretches and depots; this allows Line 2 and 3 trains to use Line 1 tracks to reach a depot placed on the line. Line 4 and Line 5 trains are supplied by athird rail system at 750 V DC.
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All the stations are provided with LED screens showing the destination and waiting time of coming trains. In every station, a recorded voice announces the direction of every approaching train and, at the platform, the name of the station. While older trains have no on-train information, the newMeneghino and Leonardo trains and the driverless trains onLine 5 are equipped with displays and recorded announcements in Italian and in English.
Since December 2009 all stations and trains of the Milan metro have fullUMTS andHSDPA connectivity.[20] Mobile operatorsTIM andVodafone also provideLTE connectivity in all lines.
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The first 3 lines areheavy rapid-transit lines, with 6-cars trains, about 105 m in length. Line 4 and Line 5 arelight metro lines, with 4-cars trains, about 50 m long.[21][22]
Line 4 and Line 5 are equipped with the same driverless trains made from Hitachi though they have different interior configurations (M4 trains have a seat arrangement similar to those of the first 3 lines).[23]
A standard ticket costs €2.20 and is valid for 90 minutes since its validation on metro,tram, bus,trolleybus andsuburban lines within Milan and 21 bordering municipalities.[24] Other tickets are available as well, such as daily, weekly, monthly, annual, student and senior passes. Additional fares are required to travel outside Milan and the 21 bordering municipalities.[25]
Paper tickets can be substituted by contactless bank cards payments, provided the trip starts in the metro, by tapping in the orange gates installed in every metro station.[26] This payment method is not available on suburban lines; it was expected to be implemented on trams and buses starting by the end of 2019;[27] it was eventually introduced in December 2020 on three urban bus lines, with plans for coverage on all the network by 2023.[28]
Between 2004 and 2007ATM introducedItinerosmartcard, aproximity card which can be charged withseason tickets, replacing paper for this type of tickets. At the beginning of 2010, a new smartcard,RicaricaMi, was introduced. The new card can be charged up with credit and can be used for travel[29] in place of magnetic paper tickets, on the model of London'sOyster card.[30]
Milan metro lines can be accessed also with the regionalintegrated ticket "Io viaggio ovunque in Lombardia", as 1 to 7 days tickets or longer subscriptions using the smartcard "Io Viaggio".
The service starts at about 5:40 am and ends at about 0:30. During Sundays and holidays service usually starts later and ends a bit later, depending on the occasion.[31] M5 stationsSegesta andSan SiroIppodromo typically close after events at nearbyMeazza Stadium to avoid passenger congestion.[citation needed]
Headways at peak hours vary from two minutes on M1 and M2’s main-branches to three minutes on M3, with secondary-branch headways doubling, at around four minutes.Driverless rolling stock on M4 and M5 allow for more frequent service, with headways as low as ninety seconds during peak hours.[31]
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A night service has operated since 2015 with buses for line M1, M2, M3 and, from 2022, M4. The bus service follows roughly the same route and stops at the same stations of the metro for most of the central part.The entire lines 1, 3 and 4 and the urban section of line 2 (Abbiategrasso-Cascina Gobba) are covered by the service. For M1 the night bus service its divided in 3 lines and continues to Baggio, well over the metro path.[32]
The metro system is currently expanding. An extension of Line 1 fromSesto 1º Maggio toCinisello/Monza, towards the city ofCinisello Balsamo, is currently under construction. The track will be 2 kilometres (1.2 mi) long with an intermediate station atSesto Restellone. The completion has been delayed several times, and is now scheduled for 2027.[33]There is a project for a further 3 km extension of Line 1 to the west into Baggio, a neighbourhood on the eastern border of the municipality.
An extension of Line 2 fromCologno Nord toVimercate is planned. The section will be 10.8 kilometres (6.7 mi) long with 6 stations (Brugherio, Carugate, Agrate Colleoni, Concorezzo, Vimercate Torri Bianche, Vimercate). The track will be mostly underground (83%).[34]
Line 3 is planned to be extended in some form (by metro or some less expensive means) to the south-east fromSan Donato toPaullo: 14.8 kilometres (9.2 mi) with intermediate stations in the city of San Donato,Peschiera Borromeo,Mediglia, Caleppio Cerca, Paullo and Paullo East, the first 3 being underground and the other on the surface.[34] The project is currently on hold.
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The last phase of line 4, from the city centre in San Babila to San Cristoforo railway station in the south-west, near the municipal border with Buccinasco and Corsico, opened in October 2024. Further extensions to Segrate train station in the east and to Buccinasco are planned, though not yet in construction.[citation needed]
Line 5 is planned to be extended to Cinisello/Monza,[35] where it will intersect with line 1 a second time atMonza Bettola [it], and then to Monza city centre and west side.
| Line | Route or station[36] | Phase[36] | Scheduled opening | Length | New stations |
|---|---|---|---|---|---|
| Sesto 1° Maggio – Cinisello/Monza | Under construction | 2027[33] | 1.9 km | 2 |
| Bisceglie – Baggio | Approved (expected start of works: 2024)[37] | – | 3 km | 3 | |
| Cologno Nord - Vimercate | Design | – | 9.7 km | 5 |
| Gessate - Trezzo sull'Adda | Design | – | 8 km | 4 | |
| San Donato – Paullo Est | Design | – | 14.8 km | 6 |
| Linate Airport -Segrate | Design | – | 2.5 km | 2 |
| Bignami - Cinisello/Monza | Approved (expected start of works: 2023) | 2031 | 13.2 km | 12 |
| San Siro Stadio - Settimo Milanese | Design | – | 4.5 km | 4 |
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