Improving our reporting

Airservices Australia is committed to providing clear, accurate, and transparent information about how our airspace is managed. We began monthly reporting on SODPROPS use in June 2024 and since then have worked to continuously improve our methodology. This includes how we align data sources and calculations to improve accuracy, and how we present the information to improve simplicity and clarity.

Reporting from December 2024 on, following implementation of changes to support greater use of SODPROPS when conditions allow, can be viewed below.

Earlier reporting can be viewed here.

Additional SODPROPS use

Additional SODPROPS movements may be recorded when conditions were not available.  This is primarily due to transition periods. These occur when SODPROPS is in operation and the system identifies that suitable conditions are no longer available but some aircraft will already be planned on SODPROPS flight paths. These flights will continue their departure or landing as planned, when safe to do so. This could be several minutes after the system notes SODPROPS conditions have ended.

These extra SODPROPS movements were captured in February 2025 reporting, and we have now updated the report structure to separate these extra movements from movements during available conditions. This will apply to reporting from February 2025 on. Previous months only captured SODPROPS movements during available hours and these reports will not be changed. The new structure reports on use and movements during available conditions on the left of the page and movements outside of these conditions on the right.

Rounding of hours

For simplicity, the reporting now uses whole hours rather than hours and minutes. Results of 30 minutes or more are rounded up to the next hour and less than 30 minutes are rounded down. Hours in December and January reports have been rounded but the percentage use remains consistent with previously published reports for these months, based on hours and minutes.