The railway route length totals 7152,2 km (as of 1991).

By 1890 there were more than 25 pipelines totaling 286 km.

When the project is completed, the arch should total 145 km.

The line also includes 22 tunnels, totaling 16.1 km.

Phase 2 is a southern extension totaling 12.7 km currently under construction.

Construction began in 1980, on the first four station stretch totaling 4.5 km.

Upon completion, the metro system will total 45 km in length.

The network will total 940 km of high-speed rail.

As of 2009, the railway employs 46 741 people; its route length totals 3336,1 km.

On an area of 8 km2 there are 116 lifts providing access to 217 slopes totalling 445 km.