The project envisages a quadrupling between Milano Rogoredo and Pavia through the construction of a new set of tracks alongside the existing ones for a total length of about 29 kilometres. Also planned is to transform service locations along the line into stops, with the exception of the Pieve Emanuele installation, which will be transformed into a station.

The intervention is split into two functional stages, the first including a quadrupling of the Milano Rogoredo-Pieve Emanuele section (at about 11 kilometres), whilst the second concerns the completion up to Pavia (about 18 kilometres).

The intervention will increase capacity and separate the types of traffic, specialising the two lines. At the same time, a new suburban service to/from Pieve Emanuele is foreseen.

Vera Fiorani was appointed Extraordinary Governmental Commissioner for completion of the works.