Italy: Milan Metro Line M4 Begins Passenger Service

The Milan Metro M4 line has begun passenger service following the inauguration of its first six stations: Linate Airport, Repetti, Forlanini Station, Argonne, Susa and Dateo.

The 5.4-kilometre section connects Linate airport to Dateo in just 9 minutes and is expected to be used by 86 million passengers each year.

Milan Metro M4
This complex project focused on sustainability and preservation of the city’s historical archaeological heritage

The work was commissioned by the Municipality of Milan and carried out by a consortium led by Webuild.

Webuild Chief Executive Officer Pietro Salini said:

“I am very happy to be in Milan today to deliver to the citizens this new underground line, the first section of the M4, and the gardens we have built on Viale Argonne. This is the result of the expertise and commitment of all the men and women who have worked over time to build this infrastructure in a particularly difficult moment, due to a number of causes including the increase in raw material prices, covid and war. It is a very important success for Webuild, which continues to deliver new sustainable and excellent infrastructures to customers and citizens.”

From next spring, the route will also connect to San Babila station, connecting the centre to the airport in just over 12 minutes.

The entire M4 route of the Milan Metro is then scheduled for completion in 2024. It will span 15 kilometres, connecting the city from east to west and passing through the historic centre. This journey will take 30 minutes and will serve 21 stations.

The M4 line is entirely underground and fully automated to enhance its efficiency. By crossing the historic centre of Milan, the new transport option will allow for a significant reduction in road traffic.

Once fully operational, it will be able to transport 24,000 people per hour in each direction, with peak trains departing every 90 seconds.

The addition of the M4 line will grow the Milan metro’s underground network to a total of 118 kilometres.

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