Transcript Slide 1
Digital NOTAM Towards a concept of operations xNOTAM Workshop #2 Brussels, 20-21 November 2007 Item 2
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Presentation objectives
Analyse digital NOTAM from an operational point of view What is a digital NOTAM Who will produce digital NOTAM Who will use digital NOTAM
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Digital NOTAM definition
Current NOTAM
“ A notice distributed by means of telecommunication containing information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to personnel concerned with flight operations.
” “ A data set made available through digital services containing information concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to systems and automated equipment used by personnel concerned with flight operations.
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Digital NOTAM definition
Events “Permanent” - the effect of which will last until the next permanent change or until the end of the lifetime of the feature Effective at a time instant “Temporary” - changes of a limited duration that are considered to be overlaid on the permanent state of the feature Effective during a time period “Transient” – a new feature, with a temporary duration (short lifetime) Effective during a time period
Digital NOTAM
Aeronautical Information Event
Hierarchy of Events
Airport Event Event Airspace Event Navaid Event
Movement and Landing Area Event Airport Services Event Obstacle Event Very helpful for defining application business rules … and remarkably similar to the NSC concept!
Work in progress, in cooperation with FAA Identify usual events and provide AIXM encoding guidelines Work area Displaced THR Closed TWY
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Concept of Operations - goal
Digital NOTAM Concept of Operations Provide a high-level description (graphical and textual) of the operations to be carried out, simultaneously or in succession, for the origination, encoding and provision to the user of digital NOTAM and of related products and services.
Part of the AIM Concept
Digital NOTAM
Aeronautical Information Event
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Beyond AIP and NOTAM: AIXM 5
Concept of Operations
elements
NOTAM AIP
for people for machines
Real time digital aeronautical data
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Concept of Operations
elements
Data centric system Common workflow for static & dynamic data AIS products become views/reports on the data Digital production chain Enable on-demand production Gradual world-wide adoption NOTAM only will continue to be provided from many States for years as long as necessary for legacy applications Until the digital NOTAM system reaches equivalent facility of usage Some current NOTAM strengths Can be broadcasted worldwide Real Time broadcasting Can be read/printed by ops without automated AIS System Plausibility and Impact analysis covered by ops
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Concept of Operations
elements
Data encoding responsibility transferred to originator Ensure integrity Critical new role of the (former) AIS/NOTAM office Guarantee the quality of the information Training and support to originator Encoding of non-common situations will require special skills (deep knowledge of the data model) “NOTAM Operator” and “static data operator” will become just “data operator” Transitory role: legacy NOTAM editor approve output that is automatically generated touch-up machine generated text to make it more human readable
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Concept of Operations
elements
Solution completeness: create equivalent AIXM-update messages for all currently published NOTAM However, even in a fully automated system, some information is intended for people -> supported as textual Notes Database responsibility capability to validate and question Event notifications received from any organisation, when they do not comply with own quality criteria Full reliance on HMI Manual editing of AIXM messages is excluded Common situations should be fast and simple to encode Un-common situations should also be supported
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Concept of Operations
elements
NOTAM automatic generation from AIXM changes Quite obvious for A,B,C,Q fields D field AIXM TIMESHEET complex data type – fully structured information compact and still readable - requires sophisticated algorithms E field content may be drafted automatically “human touch” might be necessary make it look closer to the natural language
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Concept of Operations
elements
NOTAM automatic generation - advantages Enforces standard phraseology D and E field as main beneficiaries Uniformity in NOTAM content Prevent excessive use of abbreviations Guarantee standard use of units of measurement Encourages small NOTAM with individual scope and purpose instead of large generic information improving further filtering Improved coherence between NOTAM translations same software component -> similar results
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Concept of Operations
elements
NOTAM validation - currently a major task for NOTAM data providers Data Service Providers Regional databases, such as the EAD In future, changed objective Semantic analysis rather than syntactic work Evaluation of data consistency Evaluation of impact on operations Using “semantic rules” organisation specific whether received data require manual analysis or not
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Concept of Operations
elements
Generate PIB not from NOTAM, but from Event data Merge with static data Merge with other data (MET)
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Concept of Operations
Goal Provide a high-level description (graphical and textual) of the operations to be carried out, simultaneously or in succession, for the origination, encoding and provision to the user of digital NOTAM and of related products and services.
Part of the AIM Concept Benefit from other AIM projects D-AIM AIS/MET Data Link CHAIN Etc.
Data Sources Airports CNS Infra structure Airspace Designers ATC AIS Organisation 16 Others Data Outputs
Digital AIM D-AIM Increment
Data Users Flight Briefing ATSP Pilots AIP, Amd & Supp AICs NOTAM PIB … Airlines
Digital AIM Services
Commercial Database Providers Other Airspace User Other States
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Concept of Operations
xNOTAM Project focus -> digital NOTAM origination, encoding and distribution services/interfaces
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Event
Concept of Operations
AI Event Submission and Distribution
Originator
Originator
National Reference
National Reference Database
Database
Could b e a planned change or an ad-hoc situation
AIS Product
Product Editor
Editor Analyse change Client
Client
Evaluate im pact of Event Identify affected features Generate identifier
need NOTAM?
[yes ] Generate text NOTAM
NOTAM Sub scrib er updated
Get Reference Data
where is data?
[remote] [local] Encode Event Provide Reference Data
need AIP or chart AMDT?
Distribute NOTAM [yes ] Generate AIP AMDT, SUP and/or chart revision
AIP / chart Sub scrib er updated pre-validate?
Pre-Validate Distribute AIP AMDT, SUP or chart Subm it Event Validate
is valid ?
[no]
Originator acknoledged
Make available through digital Service
Data user client system updated
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Concept of operations
Data integrator and Service Provider
Receive NOTAM Receive AIP, SUP, charts, ...
legacy system interface
Convert to digital data <
Could be replaced in future by live access to distributed data sources
Store data provide data services provide improved PIB provide digital charts etc.
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