| M4 | |||
|---|---|---|---|
 | |||
 San Babila station | |||
| Overview | |||
| Status | Operational | ||
| Locale | Milan, Italy | ||
| Connecting lines |    | ||
| Stations | 21 | ||
| Website | Official website  | ||
| Service | |||
| Type | Rapid transit | ||
| System | Milan Metro | ||
| Operator(s) | Azienda Trasporti Milanesi | ||
| Rolling stock | Hitachi Rail Italy Driverless Metro | ||
| Daily ridership | 40,000 (July 2023-February 2024) | ||
| History | |||
| Opened | 26 November 2022 (first phase) | ||
| Last extension | 12 October 2024 (full line) | ||
| Technical | |||
| Line length | 15.2 km (9.4 mi) | ||
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge | ||
| Electrification | 750 V DC third rail | ||
| |||
Line 4 is an underground rapid transit line in Milan, Italy, part of the Milan Metro. The line color is blue. The first section opened on 26 November 2022 and as of 2023 it is 7.3 km (4.5 mi) long with 8 stations. The full line opened on 12 October 2024 The line is 15.2 km (9.4 mi) long with 21 stations.
The line features automatic driverless trains and is designed for a capacity of 24–28,000 passengers per hour in each direction. The expected annual ridership is 87 million.
Construction
The first three stations of the line (Linate-Repetti-Forlanini) was originally planned to be completed in 2015, as part of the works for the Milan Expo. However, delays in planning, financing and construction works forced to postpone the opening, with the first section opening on 26 November 2022 and the rest of the line expected to open by 2023. The line is 15 km (9.3 mi) long with 21 stations, with its final 13 stops opening on 12 October 2024.
The consortium ATM-Webuild is responsible for the construction works.
Of the total estimated cost of about €1.7 billion, the Government of Italy will cover €786 million via a grant, the municipal government of Milan will cover €400 million, and €512 million will be funded by private investors.
Route
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The line is planned to connect the south-western neighborhood of Lorenteggio with Linate Airport on the east, passing through the city center. All stations are underground.
| Station Name | Transfer | Opening |
|---|---|---|
| San Cristoforo FS |  
|
12 October 2024 |
| Segneri | ||
| Gelsomini | ||
| Frattini | ||
| Tolstoj | ||
| Bolivar | ||
| California | ||
| Coni Zugna | ||
| Sant'Ambrogio |
| |
| De Amicis | ||
| Vetra | ||
| Santa Sofia | ||
| Sforza-Policlinico | (Missori)
| |
| San Babila |
|
4 July 2023 |
| Tricolore | ||
| Dateo |     
|
26 November 2022 |
| Susa | ||
| Argonne | ||
| Stazione Forlanini |
| |
| Repetti | ||
| Linate Aeroporto | 
|
Rolling stock
The line uses Hitachi Rail Italy Driverless Metro automatic driverless trains. The line will be operated by 37 four-car EMUs manufactured by Hitachi Rail Italy at Reggio Calabria. Because of production problems caused by the COVID-19 pandemic, some were sent to Hitachi Newton Aycliffe in England for final fitting out.
See also
References
- "Milan: from Monday extended hours on the M4 metro line". Agenzia Nova. 14 February 2024. Retrieved 25 April 2024.
- ^ "Apre la nuova metro di Milano: c'è la data per l'inaugurazione della M4, la linea blu". MilanoToday (in Italian). 21 October 2022. Retrieved 21 October 2022.
- ^ "M4, apre la nuova tratta San Babila-Linate: oggi si viaggia gratis. Tutto quello che c'è da sapere". Il Giorno (in Italian). 3 July 2023. Retrieved 4 July 2023.
- "Linea 4". www.metropolitanamilanese.it. Metropolitana Milanese. Retrieved 22 July 2015.
- ^ "Metropolitana M4 approvata, realizzazione Linate – Lorenteggio al via". Cronaca Milano. 22 November 2010. Retrieved 26 September 2011.
- "Milano M4". Metropolitana Milanese. Retrieved 28 December 2011.
- "Tabacci: a rischio il secondo lotto della M4". Corriere della Sera Milano. Retrieved 26 September 2011.
- "Metrò 4, aprono i cantieri". Corriere della Sera Milano. Retrieved 26 September 2011.
- "L'apertura della linea M4 a Milano slitta per ritrovamenti archeologici (e covid)". MilanoToday (in Italian). Retrieved 21 May 2021.
- ^ "C'è una data per l'apertura di tutta la linea M4". MilanoToday (in Italian). Retrieved 25 September 2024.
- ^ "M4, lavori assegnati a Impregilo e Atm". Corriere della Sera Milano. Retrieved 26 September 2011.
- "Tar: "Metrò 4, gare regolari". Via ai cantieri". Corriere della Sera. 21 January 2012. Retrieved 22 January 2012.
- Milan Metro cars in Newton Aycliffe The Railway Magazine issue 1436 November 2020 page 9
 Urban rail transport in Milan | ||||||
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 Milan Metro |
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