NAS-Wide Simulation Capabilities
[RAMS Plus, CHILL/SIM-C]
GMU – December 2008
Copyright 2008 : ISA Software
Introduction & Objectives
NAS-Wide Simulation Workshop aims to
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Review the State-of-the-Art of existing tools/models
Review capabilities suited to NextGen Conops assessment
Identify any gaps in modeling functionality that may need further
developments
Look at the near-term plans for tools (e.g. to see if those gaps are
being addressed)
Identify remaining areas to be considered by tool developers
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We will present two of our NAS-Wide modeling capabilities:
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RAMS Plus – Gate to Gate NAS-Wide ATC/ATM/Airport model
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CHILL/SIM-C – System-wide agent-based hybrid modeling platform
All supporting multiple data input sources (ETMS, ACES, ASDI, CTFM, etc.)
Copyright
2008 : ISA Software
Explicitly designed to produce
extensive
outputs for metric generation
RAMS Plus : Macro-Micro Modeling
Copyright 2008 : ISA Software
CHILL/SIM-C : System-wide agent based modeling
Copyright 2008 : ISA Software
RAMS Plus – Background/History
• Designed as a comprehensive ATC Controller / Airspace modeling tool
• Developed originally under aegis of EUROCONTROL, beginning in 1991
• Developed, supported, and distributed by ISA Software since 2000
• Enhanced to include Terminal, Approach, Airport and Ground models
• Supports regional to system-wide modeling
• Worldwide User base
• FAA HQ, FAA Tech Center, NASA, MITRE
• EUROCONTROL: EEC, HQ, CRDS, MUAC
• ATNSP/Research: Spain, UK, Italy, Portugal, Sweden, Bulgaria,
Australia, Africa (ASECNA), Japan, Korea, China, Brazil, Ukraine,
Slovakia …
• Private sector: Lockheed Martin, Ineco Spain, IDS Italy, ISA Software
Copyright 2008 : ISA Software
RAMS Plus – NextGen Modeling
• 4D Trajectory Based Aircraft Performance Model
• Geospatial Dynamic Airspace Definition
• Route based or Free Flight Navigation
• Classic and/or P-RNAV Navigational Performance Model
• ATC Controller Model
• Dynamic Assessment of Controller Workload
• Integrate cognitive workload model (MWM – Wickens based)
• Complexity / Dynamic Density Analysis
• 4D Conflict Detection with multiple priority based separation schemas
• 4D Conflict Resolution Maneuvering
• Conditional Routing
• Miles In Trail
• Military/Special Use/Weather Areas
• Time Based Metering
• TTA Target Time of Arrival
• Airport Landing/Takeoff Cycle Model (Stochastic)
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• Supports stochastic multi-iteration scenarios
RAMS Plus – Completed Studies
• Nice airport ground and approach operations
• Reorganization experiments including en-route, transition, approach/departure routes, taxi, and
gate/parking modeling elements [500 operations per day].
• Airbus 380 impact Assessment – Nice airport
• China Air Routes Re-organization
• Very large scale simulation study comparing current and future [>11000 flights] traffic for several variants of
route structures. Included high density terminal areas for 40 major and medium size airports in the region.
• ADS-B Impact/Benefits Assessment
• Impact/benefits of the use of ADS-B with reduced en-route separations across the entire US NAS.
• Environmental Concept Benefits Assessment
• EU Environmentally Responsible Air Transport (ERAT) modeling for CDA, Steep Approach and Airport CDM
processes
•Ultra High Airspace Concept Analysis Study
• to evaluate the use of Super-Sectors in the ultra high (FL345+) airspace for FAA (presented at DASC, Salt
Lake City, 2004).
•Quadrant (RVSM) Altitudes Concept Analysis Study
• to study the effects of introducing standard RVSM and quadrant-based RVSM in the US NAS (FAA report 2003).
• EU Episode III FTS Performance Assessment Studies
• SESAR Concept Performance and Cost Benefit Assessments
Copyright 2008 : ISA Software
CHILL/SIM-C – Background/History
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Developed in collaboration with FAA since 1999
Designed To Support Present And Future Concept Assessment
• NextGen / C-ATM / CDM in the USA
• SESAR / DMean in Europe
Provides an interoperable collaborative model framework for the entire
NAS
Highly interactive and supports hybrid (FTS / RTS / Gaming) modeling
Very high performance
• Entire NAS (40,000+ flights simulated in 4 minutes in CHILL/SIM-C
• FAA MSP FTS (18000+ flights, >200 sectors, 50 MSP’s) in 20 mins
Designed To Produce Extensive Performance Metrics
API’s for many languages (C++, Java, TCL/Tk, Python, Matlab …)
Integrates ‘legacy tools’ (e.g. RAMS Plus) to allow the integration of
validated models
Promotes Rapid Development of New Concept Model Components
Copyright 2008 : ISA Software
CHILL/SIM-C NextGen Modeling
• System-Wide Information Management (SWIM)
• Improved levels of Automation (Data messaging / CDM etc)
• Collaboration between ATSP & Airspace Users
• Semi or Full Delegation of Separation Assurance (->Free Flight)
• Management by Planning (Strategic / Trajectory-based ATM)
• Demand-Capacity Balancing
• Dynamic Sector Capacity and Airspace allocation
• User Preference Management
• Flow Evaluation Area / Flow Constrained Area
• Weather impact planning / avoidance
• Generic Flow modeling
• Traffic Management Initiatives (TBM / MIT / Dynamic Reroutes / Playbook)
• Traffic Flow Manager (ATSCC/TMU) Modeling
• Multi-Sector Planner (MSP) Modeling
• Air Traffic Control Model (uses RAMS Plus as a connected agent)
• Airport / Ground model (uses RAMS Plus airport components)
2008 : ISA Software
• Complexity assessment / Copyright
prediction
agents
CHILL/SIM-C – Example Applications
• NAS-Wide Strategic Flow Management Application (LM-TSS, GE-Research, ISA Software)
• User-oriented strategic flow management and user preference management through advanced simulation
and hybrid heuristic/genetic optimization tools1.
• > 25Million flight plan evaluations over 1000+ Sectors for the NAS (1.5H execution)
• Regional TFM Applications (LM-TSS, ISA Software)
• Optimization of user preferred re-routing in response to FCA/Weather including complexity prediction and
management capabilities2.
• Multi-Sector Planner Coordination FTS Study (FAA ATO-P, ISA Software)
• Study of the coordination and communication requirements for multiple MSP’s operating over 3 major ATC
Centres and in collaboration with > 200 Sector teams.
• Impact of UAV/UAS in the NAS (FAA Tech-Ctr, DOD, USAF)
• FTS Evaluation of UAS operation and impacts on the NAS.
• EU Episode III Airspace Management Concept Gaming Experiments (AENA, ISA Software)
• Analysis of SESAR Airspace Management Concepts using Interactive Gaming Scenarios
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FTS/Hybrid Simulation – Lab Environment
DCB
MIL
MSP
AOC
MONACO
ATC
APT
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Next Steps
• Continuous enhancement of existing components
• Enhanced Weather Modeling (4D Cube, ProbWx)
• Performance based services (modify service levels instead of traffic management/delay)
• Enhanced GDP (Airport Network) model
• Next round of MSP modeling (following RTS @ NASA in Jan 09)
• Transitions between managed/unmanaged airspace (SESAR)
• AOC model improvements (Not easy!!)
Copyright 2008 : ISA Software
CHILL in Action
Copyright 2008 : ISA Software