The 3.3km section from Bisceglie to Baggio will be fully underground with three new stations – Parri-Valsesia, Baggio and Olmi – that will extend the Red Line towards the south-western outskirts of Milan.
The €362m works will be carried out by a temporary consortium comprising Eteria Consorzio Stabile (with executing consortia members Vianini Lavori, Itinera and ICOP), Ghella and CMB Società Cooperativa. Construction supervision will be undertaken by MM SpA, which has overseen all phases of the project.
The expected construction timeframe is approximately five-and-a-half years, plus testing.
The M1 extension will start from the current turn-back track at Bisceglie station and will be built almost entirely by TBM. The TBM will excavate from west towards the city centre; it will be launched from the Pertini structure site and extracted once it reaches the Parri structure, near Bisceglie.
The three stations will be built at a depth of approximately 16m, while excavation depths for stations and structures will range from 12-24m at Valsesia.
With the new section, the entire Line 1 will extend to 43 stations over approximately 32km.
“Considering only residents within a 1,500m radius of the three stations, the catchment area amounts to approximately 60,000 people who, thanks to the M1 extension, will be brought closer to the city: from Olmi to Duomo it will take 21 minutes, covering 8.8km in a straight line,” said councillor for public works Marco Granelli.
Councillor for mobility Arianna Censi said 7.5 million people a year were expected to use the three new M1 stations.
“The new section will lead to a reduction of 14.8 million vehicle-kilometres in private road traffic, 85% of which relates to cars. There will also be 3.5 million additional metro journeys per year. To promote sustainable mobility, cycle routes to the stations will also be enhanced. The environmental benefits are equally significant: a net total saving of over 3,500 tonnes of CO₂ equivalent per year,” she said.
