Inland waterways statistics, which is performed as a full survey, represents a detailed source of information concerning freight transport on the river Danube (including Rhine-Main-Danube canal). As part of this statistics data referring to goods transport as well as to vessel traffic, which covers the number of locked vessels on the Austrian section of the Danube, are collected. The surveys referring to Inland waterways statistics provide an important basis for a wide range of economic and transport related policy decisions. Findings concerning transport performance within specific reference periods are provided to responsible institutions and other interested persons.