page 1 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Safety and ASAS Applications Progress and Contents Ken Carpenter on behalf of the AP1 team

page 2 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents SAF-ASAS  It is a paper, and it’s in draft  Drafting group is the AP1 team reporting to the FAA/EUROCONTROL R&D Committee  This talk will cover purpose of SAF-ASAS progress that has been made the contents of the paper (8 slides) who to complain to  Completed version should be available in November

page 3 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Purpose  To provide guidance on how to develop safe applications how to demonstrate that applications are safe  Discusses the problems for each category does not discuss specific applications does not try to show that ASAS is safe  Provides a review of the available methods  Discusses the use of the methods for ASAS applications  Discusses what it means for an ASAS application to be safe

page 4 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Progress  Jan 2002 work started  Dec 2002 draft version (D1) distributed for comment chapter 4 ( ‘Guidelines for safe ASAS applications’ ) not present comments have been received and accommodated  Aug 2003 second draft (D2) distributed for comment chapter 4 complete - no chapter 5 (‘Conclusions’) comments have been received, are being considered  Nov 2003 document complete  Feb 2004 Presentation to FAA/EUROCONTROL R&D Committee

page 5 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Contents  Chapter 2 the provision of safety safety issues in ASAS applications (by category)  Chapter 3 safety standards design and assessment methodologies  Chapter 4 development of safe ASAS applications safety assessment of ASAS applications

page 6 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents The provision of safety  Same requirements for ASAS applications as any other ATM operation  ASAS assists the provision of separation by controllers or by flight crew  ASAS applications have to meet the TLS for separation provision proof of safety by comparison has to be justified TLS for separation provision ~ 10  8 collisions/flight hour?  ASAS has to support safe applications Equipment certification requirement - 10  9 collisions/flight hour

page 7 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Safety issues in ASAS applications  Gives all the specific issues we thought of  General considerations in addition to those listed below human performance ACAS  For each category the role of ASAS in separation provision safety issues related to roles and procedures safety issues related to systems safety issues related to implementation

page 8 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Safety standards  Review of existing standards that apply to ASAS SAE ARP 926A, 4754, 4761; FAR & JAR AMJ these are for systems DO-264/ED78A  end to end  Air Traffic Services supported by communications FAA NAS Modernization Safety Management Program EUROCONTROL Safety Regulatory Requirements ESARR 4 & EATMP ANS Safety Assessment Methodology  OSA methodology central to most work on ASAS needs expansion to comply with ESARR 4

page 9 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Assessment methodologies  Design and human factors analysis analytical empirical  Risk analysis hazard analysis human error assessment  ICAO - collision risk assessment and separation comparison with TLS comparison with a reference system  Use made to date for ASAS applications

page 10 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Development of safe ASAS applications  Recommends iterative development concept early specification full specification pre-deployment operations  Favour hybrid/spiral model for development process iterative loops through objectives, evaluation of alternatives, development, validation and assessment  Guidelines on addressing safety and human performance during development

page 11 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Safety assessment of ASAS applications  Everything affects safety the operational procedures the decision support tools the controllers and pilots the communications  Guidelines offered on operational safety analysis technical safety analysis spacing values and separation minima  Guidelines on each of the application categories

page 12 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Activities versus development phase

page 13 ASAS Thematic Network Second Workshop “Safety and ASAS Applications” Progress and contents Points of contact  Rose Ashford (NASA PoC)  Gene Wong (FAA PoC):  Francis Casaux (EUROCONTROL PoC)