- Construction of foundation blocks for the support of poles, portal frames and tie-rods on the ground;
- Laying of the new supports complete with brackets, suspensions and accessories and removal, after partial demolition of the foundations, of the existing supports, brackets, suspensions and accessories;
- Supply and installation of special type OMNIA suspensions for tunnels with reduced dimensions for the electrification of the Cappuccini tunnel and of special suspensions for overpasses; adaptation of the contact lines, including the removal and recovery of the existing lines; the laying and adjustment of the new contact lines of the section along the tracks; the moorings, the electrical connections, the automatic regulation and sectioning posts; the new grounding systems for electric traction;
- Renovation and adaptation of the 3 kV d.c. power supply lines;
- Any additional works to complete the project;