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URET
User Request Evaluation Tool
27
© 2000 The MITRE Corporation
Overview of URET
Need for a Conflict Probe
• Users’ expressed needs
– More flexibility
– Choice of route, altitude, speed profiles
• System evolution toward fewer ATC restrictions
– Reduced structure results in more complex aircraft encounters
– Controllers need decision support systems
• to accommodate user preferences
• to handle more complex situations
“....any removal of restrictions to flight is a move
in the direction of free-flight.”
-RTCA Task Force 3
28
© 2000 The MITRE Corporation
Graphic Plan Display - Current Time
0 25
Future Time
0
Recenter Zoom In Zoom Out Suppress Map Options... Clean Up Exit
ABB
BWG
BPO
HYK
LOZ
IIU
AZQ
CDX
NWA531.T1
*
AAL416 *
310C
ORD 470
Graphic... Plan Options ... Plans Show
COA1737
270C
GSO 400
1 1+
AAL1265
350C
ORD 400
1+ 1+ 1+
TWA338
330C
ORF 440
2+
DAL1167
330C
ATL 470
1+
N40WG
260C
I95 290
+ 1
FL330
NWA531
290C
ATL 480
N953F
390 105
SUS 200
T230
330
N425JL
330C
LCK 440
1 2 1
Aircraft List - Sorted by: Initial Posting Criteria
R Y A Flight ID Alt. TAS Route
782
406
640
567
001
664
754
COA1737 (83)
NWA531
N425JL
N953F(26)
N40WG
TWA338 (83)
DAL342(88)
270
290
330
390T230
260
330
290
B737/A
B727/A
LR25/R
C560/R
AC69/R
DC9/A
MD88/R
MDW./.DNV..VHP..FLM..GZG.BROO K
DTW.VWV.MAYZE.ROD.J43.VXV.MA
CHI.GQO013041.LCK
FGX..IIU..SUS/2157
CRG./.GHATS060055..FLM..I95
STL./.DACOS..AZO..BKW.J42.MOL.T
TOL.FDY288003.ROD.J43.VXV .MAC
Callsign or CID: I
1
1
1
1 2 1
2
430
470
440
400
290
450
440
NWA531 (83)
Conv. Speed... Restrictions... Keep Ack. Delete Show Plans Sort...
1
Overview of URET
Basic FFP1 Capabilities Provided
• Aircraft-to-Aircraft Conflict Detection
• Aircraft-to-Airspace Conflict Detection
• Evaluation of user or controller
requests for flight plan amendments
– Route or Altitude Changes
– Airspeed Adjustments
29
© 2000 The MITRE Corporation
R-side
Controller D-side
Controller Assistant
Controller
Primary
User
En Route Facility • For a sector control team
　
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本文鏈接地址：FAA’s Free Flight Modernization Initiatives(8)