Milan’s M4 Metro Line: Webuild Board visits San Babila site

Work 81% complete on one of most complex sustainable mobility projects in Europe

MILAN, March 10, 2021 - Webuild's Board of Directors today joined Chief Executive Pietro Salini and General Manager Massimo Ferrari on a visit to the construction site of the future San Babila Station of the M4 metro line in the centre of Milan. The project, which will connect the historic centre with Linate city airport in a mere 12 minutes, is 81% complete. It is among Europe's most complex sustainable mobility projects designed to reduce traffic congestion in major cities.

The M4, which involves 1,500 people and a supply chain of 1,300 companies, is being developed by the M4 mixed concessionaire company, whose investors include private partners and Webuild. Commissioned by the City of Milan, it is responsible for the construction and operation of the line. At 15 kilometres, the M4 will have Linate and the San Cristoforo Station at either end. It will take trains only 30 minutes to travel the entire length of the line with its 21 stations, passing through the city's historic centre. With trains departing at 90-second intervals, the M4 will be able to transport 24,000 people every hour in either direction, totalling 86 million a year.

The first operational section delivered in July 2021, is ready for public use. It has three stations (Linate, Repetti and Forlanini FS), stretching underground for approximately 4 kilometres. It connects Linate airport, one of the main points of entry to the city, with the Forlanini FS Station, an important intermodal node for Milan's public transport system, acting as an interchange between metro and rail services.

The M4 stands to have a positive impact on the city. When it comes into full operation, it will have the city's entire metro network to cover 118 kilometres, thereby becoming the sixth largest in Europe by extension. The underground line will connect with the Red line at San Babila and the Green line at Sant'Ambrogio. It will also be connected to regional rail lines at Forlanini FS, Dateo and San Cristoforo stations. With a brief open-air pedestrian connection at Sforza Policlinico Station, it will also be connected to the Yellow line at Missori.

The technologically innovative project will make the city more modern, accessible, sustainable as well as greener. It will be a light rail service with driverless trains to guarantee higher technical and safety standards than traditional metro services. When it becomes operational, it is expected to reduce daily traffic by 180,000 vehicles, avoiding the emission of up to 75,000 tonnes of CO2/y.

Webuild is a global leader in the sector of sustainable mobility. Its track record includes more than 13,600 kilometres of rail and metro lines. It is involved in the development of some of the most modern and complex metro lines in the world, such as the Grand Paris Express. In Italy, it is also working on Line C in Rome and sections of the metro in Naples.