With more than 80% coverage of all mobility needs of the Viennese population, the Wiener Linien (Vienna Transport Authority) network ranks among the best developed in the world.
Wiener Linien have committed themselves to act according the propositions supply security, environmental sustainability, economic and social responsibility and have been awarded in 2001 from the Climate Alliance Austria for their achievements.
Measures like the operation of the motorbus fleet with liquid gas, the partial energy recovery in the electric circuit as well as the use of solar energy for the water heating and support of the heating of some underground stations contribute substantially to the climate protection. Furthermore car washing facilities have been changed to water reprocessing and vehicles running with diesel were partly substituted with battery operated vehicles.
To guarantee smooth arrival and departure at mega events such as concerts, the operation of vehicles and the amount of employees on duty is increased. More and more tickets include the reference "valid as ticket in Vienna" and hence can be used on all public transportation 2 hours before and up to 6 hours after the start of the event.
For more info see this link: www.vienna.convention.at
From Messe Wien: CAT & underground lines in 35 - 40 minutes, or by taxi, traveling time: 20 minutes
From Hofburg Vienna: CAT & underground lines in 25 - 30 minutes, or by taxi, traveling time: 20 minutes