With a focus on the recent progress of Ground-Based Augmentation System (GBAS) and Satellite-Based Augmentation System (SBAS) implementation by several States in the Asia/Pacific region, a GBAS/SBAS Implementation Workshop was held in Seoul, Republic of Korea, from 3 to 5 June 2019. The workshop was attended by 123 participants from 16 States, two International Organizations and seven industry participants.
The objectives of the workshop were to improve understanding of GBAS/SBAS systems, to listen to States’ and
Industry’s perspectives, and to share experiences on their implementation including system development, certification, safety assessment, flight procedure design and validation. Following a review of the status of the GBAS/SBAS systems in the Asia Pacific region, the workshop addressed the following implementation challenges:
- Definition of target operations
(APV, CAT I, CAT II/III);
- Preliminary study on ionosphere study, test bed and simulation;
- Process for performance compliance demonstration to the regulator;
- Need for the SBAS system operator to be a certified CNS provider and demonstration that, during any maintenance/upgrade of the system, performances will be continuously met;
- Safety assessment of the operations for the integration into the ATM environment;
- Validation methodology of the Final Approach Segment (FAS) data block;
- Assignment of SBAS/GBAS channels;
- NOTAM and information to air traffic controllers about GBAS/SBAS outage
- Airbus and Boeing fleet readiness to support GBAS and SBAS.
The participants appreciated the workshop as it was informative and useful for the planning of their GBAS/SBAS implementation. Overall, the workshop provided a good opportunity to see regional implementation status and compare with other States and regions, i.e. Europe and USA.