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Elements of interest and innovation
Other engineering projects
November 1, 1964: Sesto Marelli – Lotto section
April 2, 1966: Pagano – Gambara branch
April 18, 1975: Gambara – Inganni section
November 8, 1975: Lotto – QT8 section
April 12, 1980: QT8 – San Leonardo section
September 28, 1986: San Leonardo – Molino Dorino and Sesto Marelli – Sesto I Maggio sections
March 21, 1992: Inganni – Bisceglie section
September 14, 2005: Molino Dorino – Rho Fiera section
December 19, 2005: Pero station
The M1 line is a traditional heavy-duty metro line with a platform length standard of 110 m and six-car trains of 105-109 m, with a maximum capacity of 1,200-1,250 pax depending on the model.
It is entirely underground, with a standard gauge of 1,435 mm and ground power supply with 3rd and 4th rail.
The current Sesto FS I maggio – Fiera/Bisceglie route is 26.7 km long, excluding service connections, and has 38 stations for an average inter-station distance of about 720 m. The line consists of three branches: the Sesto branch, which crosses Milan from northeast to the center along the viale Monza – Corso Buenos Aires – Corso Venezia – Duomo – Castello – Cadorna axis, the northwest branch that reaches Lotto, the Gallaratese District and the Fair, and the split Bisceglie branch, which from Pagano serves the southwest of the city towards Baggio.
The M1 line is operated with a maximum frequency of 120″ (2′) (halved to 4′ on the Fiera and Bisceglie branches), which ensures a maximum system capacity of over 36,000 pphpd. With about 360,000 passengers per day and over 130 million per year, it is the most frequented metro and public transport line in general in Milan. About 400.000 passengers pass through the M1 stations on a typical working day, the most frequented is Duomo, with about 43.000 passengers. The commercial speed of the line (i.e. the average including stop times) is over 28 km/h. In operation from 5.30-6.00 to 00.30-01.00 (19h of operation) it is replaced in the remaining night hours by the NM1 replacement bus, thus making the service virtually active 24h.
The M1 line is operated by a fleet of 67 trains of three different models (called Traditional, Meneghino and Leonardo, all with 6 intercommunicating cars each with 4 doors per side and a body width of 2.85 m) housed in the two existing depots of Precotto (Sesto branch) and Gallaratese (Fiera branch).
Following the publication of the European tender for the award of the works on May 29, 2024, by the end of the same year the construction site for the extension of the M1 line from Bisceglie to Baggio will open: 3.3 km with three stations and a new depot for the only branch that is currently without one. The extension will reach Baggina with the three new stations Parri-Valsesia, Baggio and Olmi, bringing the M1 line to 30 km (excluding connections) and 41 stations (750 m average inter-station). The opening is scheduled for 2030.
