eurocontrol call sign similarity project wg1/3-csst.pdf · eurocontrol call sign similarity project...
TRANSCRIPT
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EUROCONTROL Call Sign Similarity ProjectCall Sign Similarity Tool (CSST)ICAO MID Region 1st Call Sign Confusion Ad-hoc Working GroupAbu Dhabi, United Arab Emirates16- 18 February 2015
Richard LawrenceCall Sign Similarity Project Manager
NMD/NOM/SAF
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Operational Concept – Use Cases
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CSS Tool Overview
CSS Tool[file] Flight Schedule
Conflict ListConstraints, Preferences
Report
Reference data & system
parameters
Environmental
Data
Profile
Catalogue
Local
Rules
Ref. Similarity
Rules
Ref.
Parameters
3. Quality Check
1. Load Schedule2. Initialise ATC C/S
[file] Flight Schedule
With proposed ATC C/S
With Status:Resolved/Unresolved + reason
4a. Detect4b. De-conflict
5. AcceptAO AO
CSMC
AO
CSMC
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CSS Tool Overview
CSS Tool
Flight Schedule
1. [file] Flight Schedule
5. Conflict List
4. Work mode
5. Report
System
parameters
ENV
Data
Profile
Catalogue
ANSP/State
constraints
Similarity
Rules
Tuning
Parameters
Conflict List
Live Data
3. Detect conflicts
1. Load Schedule2. Initialise ATC C/S
5. [file] Flight Schedule
With proposed ATC C/S
With Status:Resolved/Unresolved + reason
4a. Input work mode4b. De-conflict
5. Accept & TerminateAO AO
NM/CSMC
Constraints, Preferences, De-confliction mode
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CSS Tool
CSST is an application hosted in the Network Manager (NM) NOP Portal.
AO
CSST application
Back-End Services
NOP Portal
Profile Catalogue
Environment dataCSMC
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CSS Tool Overview
CSS Tool
Flight Schedule
1. [file] Flight Schedule
5. Conflict List
4. Work mode
5. Report
System
parameters
ENV
Data
Profile
Catalogue
ANSP/State
constraints
Similarity
Rules
Tuning
Parameters
Conflict List
Live Data
3. Detect conflicts
1. Load Schedule2. Initialise ATC C/S
5. [file] Flight ScheduleWith proposed ATC C/S
With Status:Resolved/Unresolved + reason
4a. Input work mode4b. De-conflict
5. Accept & TerminateAO AO
NM/CSMC
Constraints, Preferences, De-confliction mode
Similarity rules
- Conflicts between flights
- Conflict within one flight
e.g. use of letters 1& I, runway designator, flight levels
- All rules considered for Detection;
ANSPs’ constraints
- Constraints on Flight Id (Call Sign) Composition
e.g. no use of alphanumeric, use of Bigrams in France, use of final letters in NATS
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CSS Tool Overview
CSS Tool
Flight Schedule
1. [file] Flight Schedule
5. Conflict List
4. Work mode
5. Report
System
parameters
ENV
Data
Profile
Catalogue
ANSP/State
constraints
Similarity
Rules
Tuning
Parameters
Conflict List
Live Data
3. Detect conflicts
1. Load Schedule2. Initialise ATC C/S
5. [file] Flight ScheduleWith proposed ATC C/S
With Status:Resolved/Unresolved + reason
4a. Input work mode4b. De-conflict
5. Accept & TerminateAO AO
NM/CSMC
Constraints, Preferences, De-confliction mode
Environmental Data
- Timings
- Overlaps
- Buffers – for delays etc
Profile Catalogue
- CFMU Information Reporting catalogue covering ECAC area: default = ATC Unit Airspace (AUA)
- Routeing information – ‘city pairs’
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CSS Tool Overview
CSS Tool
Flight Schedule
1. [file] Flight Schedule
5. Conflict List
4. Work mode
5. Report
System
parameters
ENV
Data
Profile
Catalogue
ANSP/State
constraints
Similarity
Rules
Tuning
Parameters
Conflict List
Live Data
3. Detect conflicts
1. Load Schedule2. Initialise ATC C/S
5. [file] Flight ScheduleWith proposed ATC C/S
With Status:Resolved/Unresolved + reason
4a. Input work mode4b. De-conflict
5. Accept & TerminateAO AO
NM/CSMC
Constraints, Preferences, De-confliction mode
AO preferences
- De-selection of individual rules
Provide some flexibility in the de-confliction;
- Related conflicts are not considered for de-confliction
- Preferences in format and data content
De-confliction modes:
- Full Automatic, Semi-Automatic, Manual
- Flight Selection Criteria – determines which call sign to change
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NOP Portal Access
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NOP Portal Access
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CSS Tool Workflow
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AO Flow
Schedule Management1. Create view.
Build1. Upload schedule into the view.2. Initialise.3. Quality Check.
Prepare 1. The tool associates an airspace profile, to each flight in the
schedule. Profiles are obtained from profile catalogue.
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View Management
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Create a Flight Schedule
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Checking a Schedule
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Assign Flight Profile to a schedule
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CSST - Prepare: Assigning a profile
NM Profile Catalogue: flown profiles of previous season. Approx 180.000 profiles.
For a city pair and an aircraft type (turbo or jet) associate an airspace profile. This is the most flown profile. Flying duration in the airspace is an average of all flights using the
given profile. The airspace profile consists only of airspaces type AUA (TMA,
CTA). But can be customised for example for London AUA.
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CSST - Assigning a profile
Profile most flown for city pair A-B : AUA1, AUA8, AUA4 Airspace profile is a list of airspaces and its flying time Flying time i.e. in AUA8 = [duration (F3) + duration (F4) + duration (F5) ] /3
AUA 1
AUA 5
AUA 4
AUA 7
AUA 8
AUA 6
AUA 3
AUA 2
F1F2
F5F4F3
F6
A
B
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AO Flow
DETECT1. The tool computes the potential overlaps.
Result: Flights that overlap in space (aerodromes and airspaces) and time.
2. For the overlapping profiles, it computes Callsign conflicts by applying the Similarity Rules. Results: Lists of ‘flight’ and ‘entity’ conflicts. Two kinds of conflicts are detected.
Reference conflicts : conflicts with regard to the CSMC reference detection setups.
AO conflicts: conflicts with regards to user-relaxed or hardened setups.
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CSST - Detect
Overlap in spaceF1 and F2 in airspace AUA 8, F1 and F3 in aerodromes A, B F2 and F3 in airspace AUA 6
A
BC
D
Overlap in timeF1 06:00 EOBTF2 06:30 EOBTF3 22:00 EOBTPotential conflict F1-F2
C/S conflictsAF 123 (F1)AF 213 (F2)Conflict F1-F2 identified
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Customising CSS Tool Set-ups
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More Set-ups
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Similarity Rules Set-up
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Schedule Query
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Conflict List
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New button ‘Go To Conflicts’ will fast track to conflicts list.
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New button ‘Go To Conflicts’ will fast track to conflicts list.
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AO Flow
DE-CONFLICT1. The Flight Ids are modified to resolve/improve the
conflict. Manually or Semi-manually: The Tool proposes some ATC Flight Ids and
lets the user select. Automatic: The tool automatically de-conflicts the schedule.
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De-conflict Solution Area
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No solutions found
Possible actions when no solution is found Try to change the other flight
If possible, and not done yet Extend search space for C/S
Try other C/S ranges Allow more C/S format (Remove link with CFN) if any
Reduce “conflicts” with other flights Dropping / De-selecting some “minor” similarity rules Reducing buffer time parameters (Note: A priori De-confliction uses the same rules/parameters as for Conflict
Detection) Accept the situation
Disregard the conflict
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De-confliction – which flight
Processing a Level A conflict: which flight to change Not the one with No_change indicator set Not the one subject to ANSP constraint « C/S = CFN » Not the one with over flight permission (preferably) Not the one with airport restrictions (preferably)
Heuristics The one with the most conflicts (as will eliminate more conflicts) The one with the least frequency in the schedule (operating days)
Least impact on the schedule The most recent one (the newest city pair in schedule) The second one in FIR (First come First served) Medium-Haul, then Long-Haul, then Domestic
Some indicates L-H as last to be changed What when both same type? E.g. M-H, M-H?
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De-confliction Results
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CSS Tool - Wrap-Up
Easily accessible via NOP Portal. Rich ‘city pair’ profile catalogue - full ECAC coverage. Worldwide aerodrome detection. Full automatic ; semi-manual or manual . Highly configurable.
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CSS Tool/Service - Benefits to Users
Centralised service, managed and maintained by CSMC (EUROCONTROL).
Uses CSS UG agreed set of call sign similarity rules. Cross AO ‘Sanity Check’ performed by CSMC Economies of scale. Implements the safety objective – anticipated 75%
reduction in similarities.
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CSST Access
Access using NM token id enabled for CSST (free for existing tokens)
NM Service Request Form at:http://www.eurocontrol.int/network-operations/access-service-request-
form
Stand alone url at: https://www.nm.eurocontrol.int/PORTALCSST/gateway/spec/index.html
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Call Sign Similarity Tool 3636
NOP - On Line Help
User Guide
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CSST User Manual /Web based help
User Manual updated and online at the public website:
http://www.eurocontrol.int/lists/publications/network-operations-library?type=3320&keyword
Web based help at:https://www.public.nm.eurocontrol.int/PU
BPORTAL/gateway/spec/index.html(Workflow description Portlets and
animated case studies)