Fairway conditions

• Establishment of Fixed Sensors for GNS Monitoring:
  - Upgrading sensors at 19 gauging stations. (BG, RO)
  - Deployment of 183 buoys with advanced sensors. (HR, RO)
  - Installing 11 sensors for vertical bridge clearance. (HU, RO)
   
• Establishment of Mobile Sensors for GNS Monitoring:
  - Introducing 3 new surveying vessels. (HU, RO)
  - Upgrading sensors for 8 existing surveying vessels. (SK, HU, HR, BG, RO)
  - Incorporating 4 aquatic drones. (HU, HR, RO)
  - Deployment of 2 aeronautical drones. (HR, RO)

Our main goal is to enhance the navigability of the transnational waterway Danube by improving accuracy in fairway depth, water level, and bridge clearance. This ensures a safe and efficient passage for vessels. Moreover, the accuracy of water-level forecasts will be improved as part of the FAIRway Danube II.

FAIRway Danube II also produces annual reports on the navigability of the Danube and its navigable tributaries. 
The most important parameter is the availability of the navigation channel, i.e. the number of days per year on which the navigation channel in each section of the Danube has a minimum depth of 2.5 meters (2.0 meters in Germany). 
In addition, the maintenance and surveying work carried out in the riparian states is documented. The aim is to compile the information for all sections of the Danube (and its navigable tributaries) in a single document and create a basis for decision-makers.