Semmering-Basistunnel#
Semmering-Basistunnel, tunnel (22 km) under the Semmering Pass, planned between Gloggnitz and Muerzzuschlag on the Southern Railway. Time saved on the Vienna-Graz line by means of the Semmering-Basistunnel would be 30 minutes, compared to the Semmering Railway. The excavation of a probing tunnel started in 1994. The project was provisionally suspended in 2000.