Balázs Fürjes, government commissioner for Budapest and its agglomeration, said that a plan had been drawn up as early as 1937 to connect the two railway stations with the tunnel, and such a plan should be revisited today.

Déli railway station would be put underground, paving the way for surface areas to be developed.

Similarly, in the case of Nyugati railway station, a large area would be freed up and part of the railway would be placed underground,” he said.