Viennese zero
The Vienna zero is the reference level for urban surveys in the area of the municipality of Vienna . The Austrian capital's own height reference system was defined at the end of the 19th century and is based on the mean water of the Danube Canal level at the Schwedenbrücke , which connects the districts of Innere Stadt and Leopoldstadt .
This altitude system , which is still used today, refers to a level value of 4 m above the level zero point, which is 152.68 m above sea level. A. is. Thus "Vienna Zero" corresponds to a height of 156.68 m above sea level. A.
For the Danube navigation is Danube level in Reichsbrücke relevant.