The EMERALD RTD Plan and the
ASAS Validation Framework
R P (Bill) Booth
10 October 2002
EMERALD RTD & the ASAS VF
Objective
To compare the EMERALD RTD Plan against
the MAEVA Validation Framework to
determine the nature of validation exercises
necessary to deliver the plan
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EMERALD RTD & the ASAS VF
What is the EMERALD RTD Plan?
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EMERALD RTD & the ASAS VF
RTD Plan for ASAS applications
• Identification of the RTD issues
• Identification of RTD domains:
• Operational concepts
• Benefits & constraints
• Safety Assessment
• ASAS operations and human factors
• ASAS design and airborne functions
• Transition issues
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EMERALD RTD & the ASAS VF
RTD Plan for ASAS applications
• User requirements or concept phase
• User requirement analysis or feasibility phase
• Functional requirements or acceptability phase
• ASAS development or prototyping phase
• Experimentation or validation phase
• Implementation phase (not part of the RTD plan)
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EMERALD RTD & the ASAS VF
User requirements (or concept phase)
• The concept of ‘Co-operative Air Traffic Control’ needs to be
investigated in more detail
• There is a need for operational requirements for ASAS
applications based on expected benefits (and constraints)
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EMERALD RTD & the ASAS VF
User requirement analysis (or feasibility phase)
• Select ASAS applications for European needs
• Conduct an initial cost/benefit analysis
• Define operational scenarios
• Define ASAS requirements for the ADS-B media
• Define an airborne architecture for ASAS and airborne
functions
• Conduct initial safety studies
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EMERALD RTD & the ASAS VF
Functional requirements (or acceptability phase)
• Define operational procedures for the selected ASAS
applications
• Define the new ‘Rules of the Air’ and the airborne
separation minima
• Conduct a pass/fail, cost/benefit analysis
• Address the transition issues : suitable rate of equipage,
impact upon aircraft operators and ATM organisations
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EMERALD RTD & the ASAS VF
ASAS development (or prototyping phase)
• Develop prototypes for ASAS equipment and for the new
ground system functions
• Conduct off-line simulations for the evaluation of ASAS
algorithms and compatibility with ACAS
• Develop real-time mock-ups
• Draft industry standards
• Prepare initial training programmes for pilots and
controllers
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EMERALD RTD & the ASAS VF
Experimentation (or validation phase)
• Conduct real-time simulations involving pilots and
controllers
• Conduct flight trials
• Measure the potential benefits and constraints through a
validation process
• Re-evaluate the cost/benefit analysis
• Conduct an in-depth safety study
• Finalise ICAO standards and industry standards
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EMERALD RTD & the ASAS VF
How does the RTD Plan Map onto
the Validation Activities?
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EMERALD RTD & the ASAS VF
Validation Activities and the RTD Plan
• RTD plan issues equate to Validation aims of MAEVA
• In some cases experiment techniques are specified
• Cost/benefit (efficiency) issues
• Architecture and algorithm issues
• Some examples follow….
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“Measure potential benefits & constraints
through real-time simulations”
Techniques
Real-time
Validation Exercise
Aim
The plan does not specify
the term ‘benefits’.
Inputs
Final Application Definition
& HMI,
Experimentation Platform.
Dependencies
All previous work leading to
definitions.
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“Validate ASAS algorithms through realtime simulations”
Techniques
Real-time
Validation Exercise
Aim
To examine all possible
flows of control and data
issues.
Inputs
Final Application Definition
& HMI,
an encounter model,
Experimentation Platform.
Dependencies
ASAS algorithms to be
mature.
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“Validate the new share of responsibility
between pilots and controllers”
Techniques
Real-time, analytical,
survey
Validation Exercise
Aim
Pilot and controller
workload with ASAS
Inputs
Final Application Definition
& HMI,
Realistic future traffic
samples
Experimentation Platform.
All previous work leading to
definitions.
Dependencies
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EMERALD RTD & the ASAS VF
Conclusions
• The ASAS VF maps well to the high-level activities
defined in the RTD plan.
• Many issues in the RTD Plan are outside the
validation scope.
• Some issues in the RTD plan need further
definition leading to high-level VF objectives
• Key issue is complete specification of the ASAS
applications to be validated
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ASAS - Thematic Network
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Kick-off November 2002
Further details from Francis Casaux or Bill Booth
The EMERALD RTD Plan and the
ASAS Validation Framework