The Western Australia Route Review Project (WARRP) was a comprehensive review of airspace use, flight routes and aviation procedures across Western Australia. The review was undertaken by Airservices between 2006 and 2008. Changes were implemented in November 2008.
It followed a 2003 audit of airspace use in WA by Australia’s aviation safety regulator, the Civil Aviation Safety Authority. As a result of the audit, changes were needed to maintain safety, reduce complexity, and to effectively manage the increased demand for air travel, other aviation services and military flying.
View full details of the project brief (PDF).