The double-lane road tunnel is the centrepiece of the Völkermarkt bypass. The town centre is relieved from heavy traffic which in turn means a better quality of life for the population.
The Roppen tunnel between Innsbruck and Landeck in Austria was made safer by the construction of the second tube. The 5,069 meter long tunnel was driven conventionally.
The extension of the Klaus tunnel string with the 2nd tubes on the A9 Pyhrn motorway in Austria means the end of oncoming traffic and thus provides better safety for 18,000 drivers per day.