Approximately 650,000 passengers use the two Metro Lines on a daily basis. It has been estimated that, the Metro’s operation reduced by 70,000 the number of cars entering the city center or, in other words, it reduced the vehicular traffic by 335,000 vehicular kilometers on a daily basis.

At the same time, the Metro operation was combined with the restructuring of other public transportation modes as well, by reducing the bus terminal stations in the city center due to the creation of new bus terminal stationsc lose to the Metro Stations. Therefore, the Metro’s operation reduced significantly not only the number of private cars, but also that of buses in the center of Athens.