1 CSSI, Inc. Headquarters 400 Virginia Avenue, SW • Suite 210 • Washington, DC 20024 202.863.2175 • 202.863.7400 fax • 888.275.0862 toll-free www.cssiinc.co m Moving Research to Reality Advances in NASPAC Innovations in NAS-wide Simulation Workshop George Mason University January 27 th - 28 th 2010 Lakshmi Vempati
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CSSI, Inc. Headquarters 400 Virginia Avenue, SW • Suite 210 • Washington, DC 20024
Moving Research to Reality. Advances in NASPAC Innovations in NAS-wide Simulation Workshop George Mason University January 27 th - 28 th 2010 Lakshmi Vempati. CSSI, Inc. Headquarters 400 Virginia Avenue, SW • Suite 210 • Washington, DC 20024 - PowerPoint PPT Presentation
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CSSI, Inc. Headquarters
400 Virginia Avenue, SW • Suite 210 • Washington, DC 20024
• Model separation of aircraft in US oceanic airspace through the use of restrictions
• Oceanic regions modeled (with updated find crossings module)○ Oakland oceanic (ZOA),○ New York oceanic (ZNY) and○ Anchorage oceanic (ZAN) sectors 10 and 11.
• Challenges ○ No geometry information in the simulation engine○ Limitation of existing find crossings module to NW quadrant of the globe only
• Pre processing and data requirements○ Process and merge ATOP FPL with FZ where necessary and cleanse data○ Compile international waypoint data into NASPAC readable format○ Sector definitions for New York, Oakland and Anchorage○ Oceanic separation standards lookup based on
■ Equipage■ Oceanic Region
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Gate Finder
• Gate Finder to generate restrictions○ Un-capacitated US oceanic sectors for Oakland (ZOA), New York (ZNY), and Anchorage
(ZAN) fully functional with newer sector crossings module○ Restriction generated at any "filed waypoint + filed cruise altitude" in the schedule used by 2 or
more flights
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Restriction
All headings (0-359)All airport pairsFor entire day10 min in trail separation± 500 ft altitude bounds above or below the target filed cruise altitude
Yes
Filed waypoint + filed cruise altitude used by 2 or more flights
Gate Finder
Sector names
Input schedule
Sector definitions
Oceanic Operations: Example restrictions
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• Restrictions created for one NASPAC schedule:○ Vertically-oriented lines represent restrictions created on oceanic network waypoints○ Horizontally-oriented lines represent restrictions on all other waypoints
Terminal Area Modeling
• Incorporate SID/STAR/IAP routes into flight schedules and integrate into trajectory modeler to support modeling altitude restrictions (level-offs)
• Challenges○ SID/STAR/IAP definitions are updated every 56 days. ○ Not all procedure definitions are included in the National Flight Database. Example SIDs with
non-structured routing○ SID/STAR/IAP charts contain extensive information in free text as well as graphically. Not all
information is captured in the database. ○ Special cases:
■ Altitude restrictions based on direction of arrival e.g. KORD Janesville 5 Arrival■ Procedures applicable to: Aircraft type (e.g. Turboprop, Turbojet), Equipage (e.g. DME,
GPS), Speed restrictions (e.g. 250K, 280K), Time of day, Runway use (e.g. R12L fly at 10000)
■ Expect to cross at lowest available altitude (e.g. KEWR Williamsport 5Arrival)■ Combination of multiple aircraft type, multiple runway altitude restrictions (e.g. KBOS
Gardner 3 Arrival)○ Existing schedule filed waypoint inconsistencies○ Field 10 parsing issues ○ Issues with merging existing routes with SID/STAR/IAP
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SID/STAR Implementation
• Pre-processing and data requirements○ Field 10 (Route of flight information)○ SID/STAR/IAP definitions ○ Supplemental information from aeronautical charts○ Parse field10, lookup SID/STAR when specified and merge into waypoints list
• Assignment and Merging Algorithm
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Field 10 ParserInput schedule
Sid/Star/IAP Database
Assigning/Merging Algorithm
Modified schedule
Yes
No
Has SID/STAR
LookupAssign
Merge
SID/STAR Assignment Examples
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ATL Departures
IAD Arrivals
Closing comments
• Initial oceanic restrictions and in trail separations (distance and time-based) implemented
• Initial SID/STAR routing, assignment and merging
• Ongoing efforts:○ Oceanic in-trail climb/descent○ IAP assignment○ Full integration into NASPAC
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Questions?
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CSSI, Inc. Headquarters
400 Virginia Avenue, SW • Suite 210 • Washington, DC 20024