Exactly 27 years ago, the first section of the Sofia Metro was put into operation - from "Slivnitsa" to "Konstantin Velichkov".

Today, the capital's metro has 52 trains on the first and second lines and 30 on the third. 52 km. of metro lines have been built, but for the needs of Sofia, it is necessary to have at least 80 km. Currently, a new section of 9 km is being built and the remaining 20 km will be in different parts of the city.

It is expected that the metro will develop further to the north, where the areas are poorly developed and have not been utilized. In this way, the metro can stimulate construction and the pressure on the southern regions will begin to decrease. The third line of the metro will develop towards the "Vrazhdebna" district, where the airport is located.