Implementation Strategy and Challenges Tony Henley BAE Systems

1. Implementation Strategyand ChallengesTony HenleyBAE Systems ASAS -TN Seminar Brighton 11-13th October 2004

2. Overview Preliminaries - Necessary background Standards Work in progress Certification Methodology in place Applications - Where are we today Early Implementation What are we waiting for Recommendations from �Towards an Implementation Strategy�

3. What is ASAS Airborne Separation Assistance (Assurance) System Use with caution! Package 1 not about Separation Not a single �System� But a collection of applications enabled by new technology Provides new OPERATIONAL capabilities in Radar airspace and SURVEILLANCE in non radar areas Not primarily to �tidy up� limitations of current or future air traffic control strategies

4. Technology ASAS is enabled by ADS-B 1090 Extended Squitter- selected by EUROCONTROL and FAA ( but UAT for GA) & Australia European Mode S mandate gives ADS-B-Out almost at no cost ADS-B-in (essential for ASAS) available for Commercial aircraft Possible long term capacity issues (VDL mode 4) European and ICAO recognition May provide a second link - for integrity/ capacity Potential integration problems ) (UAT) Mitre Corp invention - used in all US Safe flight 21 activity Unlikely to work in Europe - frequency clash with mobile phones) (Civil version of JTIDS)

5. ASAS/ACASInteroperability ACAS RAs must be followed even in a ASAS environment Today ACAS must remain independent Traffic information must be consistent and If a common ACAS and ASAS CDTI display is used unique symbology is required for RAs

6. STANDARDS Safety and Interoperability

7. What needs to be Standardised Overall Air/Ground applications including the concept of operations Ground ATM systems Communication, navigation and surveillance elements And because many countries involved ICAO to provide common Standards

8. Standards for the Air/Ground Concept

9. What is happening at ICAO Operational Data Link Panel (OPLINK) �ADS-B concept of use� endorsed by ANC11 Annex 10 Amendment 77 (Nov2002) Technical standards for 1090�MHz Extended Squitter still to be defined minimum data set for given ASAS application, performance & integrity Also references VDL Mode 4 technical specification in the process of establishing the technical standards for UAT

10. AN-Conf/11 (Sept 03)Recommendation 1/7 Ground and airborne automatic dependent surveillance-broadcast (ADS-B) applications for global interoperability That ICAO and States: a) recognize ADS-B as an enabler of the global ATM operational concept bringing substantial safety and capacity benefits; b) support the cost-effective early implementation of packages of ground and airborne ADS-B applications, noting the early achievable benefits from new ATM applications; and c) ensure that implementation of ADS-B is harmonized, compatible and interoperable with respect to operational procedures, supporting data link and ATM applications.

11. ICAO Does not prevent local implementations but does ensure common definition of applications approved by international committee Is encouraging early implementation while Highlighting the need for interoperability

12. Requirements Focus Group International ASAS definition group comprising EUROCONTROL, FAA, EUROCAE, RTCA with Australian and Japanese support To ensure harmonise applications in support of the work of ICAO Panels Developing operational descriptions and safety cases for each application Legal status of deliverables (almost) agreed

13. RFG Progress Operational descriptions almost complete for Surveillance in Non Radar areas Sequencing and merging Progressing Surveillance in Radar areas Surveillance on Airport Ground and Airborne Based Visual approaches Beginning Soon In trail procedures Crossing and passing

14. Ground ATM systems

15. Changing Environment Local standards traditionally used but growing move to European and Global Standards European Common ATC architecture (OATA) leading to new standards EUROCAE developing Ground ATC standards in part under MOU with EUROCONTROL European Standards Bodies CENELC and ETSI developing Standards for ATC systems under EU Mandates

16. Single European Sky legislation Provides a foundation for a common certification system for air navigation services and an "Interoperability Regulation". ASAS Applications will be amongst the first under the new regulation framework How local implantations can be approved under the new framework is not yet clear

17. Airborne Standards

18. CNS Equipment Standards for ASAS Based on MOPS Minimum Operational Performances Standard generated by RTCA and EUROCAE Define the minimum requirements of a given onboard function and provide an agreed testing methodology RTCA has developed MOPS for 1090MHz Extended Squitter for ADS-B and TIS�B (DO-260A) UAT ADS-B (DO 282) EUROCAE has developed MOPS for 1090 MHz Extended Squitter (ED-102,) Interim MOPS for VDL mode 4 (ED 108)

19. Transition to EASA New applications can use �Temporary Guidance Leaflets� (TGL) Issued by JAA/EASA (CNS/ATM Steering Group) in coordination with FAA Address both airworthiness and operational approval Leads to Advisory Circular Joint (ACJ). Close co-operation between standards bodies eg EUROCAE and the new EASA will be essential

20. Standards Summary Air/ground integration issues should be agreed at ICAO level ICAO level ASAS documents exist or in preparation RFG is key to supporting their completion Critical international co-operation- must be supported Requirements very dependent on the specific application to be deployed Focus efforts on those giving near term gains New European Regulations may slow down progress on ground system standards Improve co-operation e.g. between EUROCAE, EASA, EUROCONTROL Safety Regulation group Airborne system standards process is well established But EASA expected to change things in time

21. Certificationand Operational Approval