The City of Milan has announced the awarding of the tender for the extension of the M1 red line with three new stops: Parri-Valsesia, Baggio and Quartiere Olmi. The new section, about 3.3 kilometers long, will bring the subway into previously underserved neighborhoods, thus significantly improving mobility and quality of life for thousands of residents. The work, which will begin in late 2025, includes the construction of three new underground stations, and the goal is to complete the work by 2032
M1 and the “mechanical mole” technology
Technically, the construction of the new section will mainly rely on the use of “mechanical mole” (TBM) technology, a machine that excavates underground tunnels efficiently and with minimal impact on the surface. This choice makes it possible to greatly reduce disruption to the road system and residents by avoiding long periods of open excavation.
The total investment exceeds 362 million euros, a figure that includes both the construction of the tunnels and stations and the installation of the necessary technological and safety systems. In addition, the project includes innovative solutions for accessibility, energy sustainability, and efficient passenger flow management.
New expansion toward Cinisello Balsamo
In parallel with the westward extension, the tender for the extension of the M1 northward from Sesto FS to Cinisello Balsamo was also awarded. The intervention is still waiting for final funding to start work, but it represents another step toward complete metropolitan coverage of the city. Indeed, the goal is to create a network that effectively connects Milan’s different neighborhoods and neighboring municipalities, thus facilitating travel and promoting more sustainable mobility.
The extension of the M1 line represents an important opportunity for the neighborhoods of Valsesia, Baggio, Olmi, Muggiano and Cesano Boscone. The arrival of the subway will not only facilitate the daily movements of residents, students and workers, but will also boost the economic and social development of the affected areas, promoting urban redevelopment.