viadonau is continually striving to achieve the harmonised development of the Danube waterway and enhance the integration of the Danube Region into the policies of the European Union. To achieve this, the company maintains close contact with the other waterway authorities, decision-makers and interest groups in the Danube riparian states. Improvement and maintenance of this network is carried out in accordance with the guidelines of the relevant judicial transport policies, either as part of common initiatives, projects and events, or through bilateral administrative and cooperation agreements.

At a European level, viadonau supports the European Commission with, amongst other things, the implementation of the European Action Programme for Inland Waterway Transport (NAIADES and NAIADES II) and the development of the Rhine-Danube Corridor as part of the trans-European transport network (TEN-T).

The work of the European river commissions (including the Danube Commission and the Central Commission for Navigation on the Rhine) is also supported by viadonau through its expertise and the provision of specialised information for inland waterway transport.