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Required Total System Performance (RTSP) Bernard Miaillier EUROCONTROL

Required Total System Performance (RTSP) Bernard Miaillier EUROCONTROL. EUROCONTROL. Agenda Item 3. Genesis of RTSP. RCP, RNP, RSP Conceived within the FANS Committee For CNS P erformance R equirements Notion generalised to R TS P ICAO ATMCP tasked to investigate feasibility

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Required Total System Performance (RTSP) Bernard Miaillier EUROCONTROL

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  1. Required Total System Performance (RTSP)Bernard Miaillier EUROCONTROL EUROCONTROL Agenda Item 3

  2. Genesis of RTSP • RCP, RNP, RSP • Conceived within the FANS Committee • For CNS Performance Requirements • Notion generalised to RTSP • ICAO ATMCP tasked to investigate feasibility • Future ATM to be performance based (incl. safety)(see Agenda Item 1, WP/4 - operational concept ) • Complex topic, initial work aimed at ANC/11

  3. Need for Performance Orientation • ATM serves society and air traffic stakeholders • Various expectations, safety comes first • Performance, always a reference: “safe, orderly and expeditious flow of traffic” • Performance orientation trend in economy • Communicate on goals, achievements • Current and future requirements • Plans and actual levels • Support / facilitate decision making • Understand the effect of changes • To move system developmentfrom add-ons to goal driven

  4. A Performance Framework to Structure Discussion • Three pillars • A hierarchy of ATM Performance Concepts • Accurate models of ‘what drives what’ • e.g. cause/effect relationships between expectations, functions, system components, concept of use, architecture • Rigorous description of traceable performance parameters • An approach: ISO13236 Quality of Service Framework

  5. Level 2: RASP safety, throughput, delay, predictability, flexibility, etc. Actual Performance Measurement & Monitoring Level 3: RTSP on operational functions/entities set of characteristics Rf1P RfnP Level 4: System Requirements for an airspace and/or type of users sets of consistent enabler requirements, e.g. RNP, RCP, etc. { … } { … } Level 5: Standards & specifications (technologies) tech. SARPs, MOPS, standards, ISO90xy, etc. Hierarchical ATM Performance Concepts & Models Level 1: Political and socio-economic requirements safety, security, environmental efficiency, costs, etc.

  6. Quality of Service (QoS) Framework ISO 13236 • Use for RTSP seems appropriate for • ATM system constituents, even operational services • they can be represented in terms of information processing • Describing underlying technical services • Main requirements covered by 4 characteristics • Delay - Transient responsiveness • Capacity - Throughput • Integrity - Accuracy • Reliability - Availability Illustration • RNP • navigation accuracy • RCP • 95% transit delay • message integrity • reliability/availability

  7. From Expectations to System Characteristics Trade-offs, except for safety Operational concept Scenarios System architecture RTSP ATM System RASP Expectations “SMART” Metrics Global / regional / local targets Vs global standards

  8. RTSP: an aggregate of ATM system component requirements • Describes the performance of the ATM Concept Components in a given environment • Adapted to local and user needs • Defined for most demanding characteristics • Not independent from available implementation options • balance between generic (to keep implementation flexibility), specific (to prevent proliferation of solutions) • Driven by most stringent requirements • likely: conflict management and navigation (real-time, safety related decisions) • Summed up by a few Categories only ?

  9. RTSP / Performance in ICAO Activities • Framework to facilitate co-ordination of individual contributions • Planning Tool • Global, regional or local: same model, consistency, harmonisation • For the target situation and the implementation steps towards it • Monitoring Tool • Against objectives, at appropriate level • Feed back is essential

  10. Future Work • Feasibility to be confirmed • Define metrics • Further develop the framework • Distribute individual aspects to panels with an overall consolidation body • Keep momentum on SARPs development and planning Priorities • Upper layers, definition of indicators/targets • Understand ATM system behaviour

  11. Agenda Item 3: Expected Discussion Outcome • WP/8: basis for discussion • Conference expected to • Support performance orientation for future ATM definition • Call for, and support, more work to • Formulate and define objectives/targets & metrics • Harmonise all contributions within an overall framework.

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