Safety and ASAS Applications Progress and Contents Ken

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Safety and ASAS Applications Progress and Contents Ken Carpenter on behalf of the AP

Safety and ASAS Applications Progress and Contents Ken Carpenter on behalf of the AP 1 team ASAS Thematic Network Second Workshop 1 page 1

SAF-ASAS u It is a paper, and it’s in draft u Drafting group is

SAF-ASAS u It is a paper, and it’s in draft u Drafting group is the AP 1 team reporting to the FAA/EUROCONTROL R&D Committee u This l l talk will cover purpose of SAF-ASAS progress that has been made the contents of the paper (8 slides) who to complain to u Completed ASAS Thematic Network Second Workshop version should be available in November 2 page 2

Purpose u To l l provide guidance on how to develop safe applications how

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

Progress u u u Jan 2002 l work started Dec 2002 l draft version

Progress u u u Jan 2002 l work started Dec 2002 l draft version (D 1) distributed for comment l chapter 4 (‘Guidelines for safe ASAS applications’) not present l comments have been received and accommodated Aug 2003 l second draft (D 2) distributed for comment l chapter 4 complete - no chapter 5 (‘Conclusions’) l comments have been received, are being considered Nov 2003 l document complete Feb 2004 l Presentation to FAA/EUROCONTROL R&D Committee ASAS Thematic Network Second Workshop 4 page 4

Contents u Chapter 2 l the provision of safety l safety issues in ASAS

Contents u Chapter 2 l the provision of safety l safety issues in ASAS applications (by category) u Chapter 3 l safety standards l design and assessment methodologies u Chapter 4 l development of safe ASAS applications l safety assessment of ASAS applications ASAS Thematic Network Second Workshop 5 page 5

The provision of safety u Same requirements for ASAS applications as any other ATM

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

Safety issues in ASAS applications u Gives all the specific issues we thought of

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

Safety standards u Review of existing standards that apply to ASAS l SAE ARP

Safety standards u Review of existing standards that apply to ASAS l SAE ARP 926 A, 4754, 4761; FAR & JAR AMJ 25 -1309 these are for systems l DO-264/ED 78 A Ø end to end Ø Air Traffic Services supported by communications l FAA NAS Modernization Safety Management Program l EUROCONTROL Safety Regulatory Requirements l ESARR 4 & EATMP ANS Safety Assessment Methodology u OSA l methodology central to most work on ASAS needs expansion to comply with ESARR 4 ASAS Thematic Network Second Workshop 8 page 8

Assessment methodologies u Design and human factors analysis l analytical l empirical u Risk

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

Development of safe ASAS applications u Recommends iterative development l concept l early specification

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

Safety assessment of ASAS applications u Everything affects safety l the operational procedures l

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

Activities versus development phase ASAS Thematic Network Second Workshop 12 page 12

Activities versus development phase ASAS Thematic Network Second Workshop 12 page 12

Points of contact u Rose Ashford (NASA Po. C) l u Gene Wong (FAA

Points of contact u Rose Ashford (NASA Po. C) l u Gene Wong (FAA Po. C): l u [email protected] arc. nasa. gov gene. [email protected] gov Francis Casaux (EUROCONTROL Po. C) l [email protected] fr ASAS Thematic Network Second Workshop 13 page 13