The gradual modernization of the technological equipment of the Prague metro involves twelve stations on all three routes - Dejvická, Muzeum, Náměstí Republiky, Budějovická, Staroměstská, Můstek, Hlavní nádraží, Smíchovské nádraží, Malostranská, Pankrác, Jinonice and Karlovo náměstí.

The project includes modernization of the ventilation and wiring in the background of stations, i.e. in technical rooms, engine rooms and control rooms. Subterra a.s. installs air handling units, wiring, fans and other equipment that needs to be adjusted according to current requirements. The work is always done in three stations at the same time, the transport of material and some activities are limited to the subway closure at night.