Airservices is a government-owned corporation providing safe, secure, efficient and environmentally responsible services to the aviation industry. We manage air traffic operations for around 75 million passengers on more than three million flights every year.

Ground Based Augmentation System

The Ground Based Augmentation System (GBAS) is a satellite-based precision landing system and is recognised by ICAO as a replacement for current instrument landing systems (ILS). GBAS is a critical component of Australia’s next-generation air traffic management infrastructure.

The system uses GPS signals to provide aircraft with very precise positioning guidance during the final stages of an approach, both horizontal and vertical, which is especially critical  during the landing phase of flight. This allows for a safer, more efficient descent and landing. Just one GBAS station can guide up to 26 highly precise approach flight paths simultaneously.