Airspace Management (ASM) & Aeronautical Information Services (AIS) – Comprehensive Notes

Definition of Airspace Management (ASM)
- ASM is a planning function with the primary objective of maximising the utilization of available airspace by dynamic time-sharing and, at times, the segregation of airspace among various categories of users based on short-term needs.
- Regulatory reference: Regulation (EC) No 549/2004.
Scope of Airspace Management
- Describes the combined function of categorising, legislating, regulating airspace, licensing Air Traffic Services, and determining the capacity for Air Traffic Flow Management (ATFM). $ASM = ext{categorisation} + ext{legislation} + ext{regulation} + ext{licensing ATS} + ext{ATFM capacity planning}$
ASM Hierarchy
- Government level: National High Level Policy Body.
- ASM Level 1: Military and Civil (AMC) collaboration; high-level strategic policy.
- ASM Level 2/3: User requests handled via FMP (Flight Management Plan), NMOC (Network Manager), AUP (Airspace Utilisation Plan), ATSU (Air Traffic Services Unit), etc.
- Key players include: National HLAPB, AMC, NMOC, FMP, AUP, ATSU, Aircraft Operators, ADP (Airspace Data Provider).
Responsibility for ASM
- Member states shall establish a National High Level Airspace Policy Body.
- If civil and military authorities share responsibility, the National High Level Airspace Policy Body shall be joint civil-military.
National High Level Airspace Policy Body – Strategic Objectives
- Maintain and actively seek to improve safe and effective airspace management and supporting infrastructure.
- Exercise fair and effective regulation of airspace and its management.
- Build confidence and respect between airspace regulators and stakeholders through consultation and regulation.
- Maintain and improve standards of service via effective planning.
- Accommodate shared use of national airspace by all user groups.
- Harmonise airspace management procedures with neighbouring states.
- Conduct regular monitoring of compliance with the Flexible Use of Airspace (FUA) concept at each level.
Flexible Use of Airspace (FUA)
- FUA is based on airspace as a continuum allocated day-to-day to accommodate user requirements.
- Airspace is no longer inherently “civil” or “military”; any necessary segregation is temporary and real-time based.
- Contiguous airspace volumes are not constrained by national boundaries when feasible.
Airspace Management Levels (3 levels)
- ASM Level 1: Strategic Airspace Management (national policy, strategic planning, including FUA).
- ASM Level 2: Pre-Tactical Airspace Management (daily/temporary allocation of airspace).
- ASM Level 3: Tactical Airspace Management (real-time activation/deactivation/reallocation of Level 2 allocations).
Strategic ASM – Level 1 (ASC policy & planning)
- National HLAPB formulates national ASM policy and conducts strategic planning, considering national/international user requirements and ATS provider requirements.
- Includes Flexible Use of Airspace procedures.
Pre-Tactical ASM – Level 2
- Day-to-day management and temporary allocation of airspace.
- Airspace Management Cells (AMC) support this level; AUP (Airspace Utilisation Plan) published by the Network Manager defines limitations, CDRs, and RSA statuses.
- Real-life examples shown in AUP include: CDRs closed/open; RSA in force; and related blocks such as PPAN, PAN, LETPA, EPAIL, SANTAREM, etc.
- AUP content includes designations of airspace and the status of restrictions (e.g., CDRs, PBN designations, and area activations).
Airspace Management Cells (AMC) – Pre-Tactical ASM (Level 2)
- AUP details the airspace limitations (e.g., CDR1 closed, CDR2 available, RSA in force).
- Real-life examples illustrate how AUP information translates into airspace use decisions.
AUP (Airspace Utilisation Plan) – Real Life Examples
- AUP published in the Network Operations Portal (NOP) includes:
- AUP data such as PPAN, PAN, LETPA, EPAIL, etc.
- Designated airspaces, route segments, and CDR allocations.
- NOP provides updated data including CDR types, airspace restrictions, and how they affect planned routes (e.g., SVL to KORNO via CDRs).
Network Operations Portal (NOP) & Network Manager (NMOC)
- NOP provides access to AUP data, sector flight forecasts, delayed flights, network plan, and tactical information.
- NMOC coordinates ATFCM measures and contingency plans.
- Access examples: https://www.public.nm.eurocontrol.int/PUBPORTAL/ (as of 2018-10).
- The NOP includes features like “Initial Network Plan,” “Network Headline News,” and “Network Plan” with real-time updates, forecasts, and scenario lists.
- ATFCM measures (scenarios) aim to optimise capacity across European ACCs and minimise ATFM regulations while protecting sectors.
Contingency planning & Network Management (NM)
- NM ATFCM contingency plans exist for summer and winter operations (e.g., Summer 2018, Winter 2018-2019).
- CCAMS contingency plans exist for network outages or CCAMS failures.
- EVITA (European Crisis Visualisation) is a tool for ATFCM weather assessment.
- CCMS (Central Claim Management System) logs operational problems, user requirements, and general requests.
Airspace Data, ATFCM, and AXES Management
- NM is involved in “Network Axis Management” with information about axis processes (e.g., South East Axis, South West Axis).
- Official NM communications include weekly axis meetings and news.
TSA – Temporary Segregated Areas
- TSAs are pre-defined airspace areas reserved for exclusive use of specific activities/users for a defined period.
- Established at ASM Level 1 and serve as a planning/contingency tool for managing temporary airspace needs.
Conditional Routes (CDRs)
- A Conditional Route is a non-permanent ATS route or a portion thereof, plannable under certain conditions.
- Categories: CDR 1, CDR 2, CDR 3.
- CDR 1: Permanently plannable route (often shown in black).
- CDR 2: Non-permanently plannable (plannable per the AUP conditions; often shown in blue).
- CDR 3: Not plannable per se, but may be used tactically at ATC discretion.
- A CDR may have more than one Category and may be defined for different flight levels.
- Examples: The SVL to KORNO route can have multiple CDRs with different directional directions or levels.
Conditional Routes – Visual/Color Coding & Level Implications
- CDR 1 (permanently plannable) is typically shown in black.
- CDR 2 (non-permanently plannable) is typically shown in blue.
- CDRs may have multiple categories depending on conditions.
Tactical ASM – Level 3
- Involves real-time activation, deactivation, or reallocation of airspace allocated at Level 2.
Summary – Key ASM Concepts
- Define ASM and its scope.
- Identify responsibility for ASM (state-level policy bodies; civil-military collaboration).
- Understand the three ASM levels and their purposes (strategic planning, pre-tactical allocation, tactical real-time management).
- Recognise ASM activities: TSA creation, CDR management, and airspace data sharing via AUP/NOP.
- Acknowledge the role of NM/ATFCM in capacity planning and contingency.
- Appreciate the relationship between ASM and real-world operations (ATFM, network management, flexible use of airspace).
Summary – References
- Handbook for Airspace Management – Eurocontrol Spec 0112
- Regulation (EC) 549/2004 (SES Framework)
- Regulation (EC) 2150/2005 (Common Rules for the Flexible Use of Airspace – FUA)
Aeronautical Information Service (AIS)
- An AIS is a service within a defined coverage area responsible for providing aeronautical information/data necessary for the safety, regularity, and efficiency of air navigation. Based on ICAO Annex 15. $ICAO ext{ Annex }15$
- Responsibility: Each Contracting State shall provide AIS, or arrange a joint service, or delegate to a non-governmental agency; the State remains responsible for published information. $State ext{ obligation} <br>ightarrow ext{AIS}$
- Function: Receive/originate, collate, edit, and publish aeronautical information for the entire territory and areas outside its territory as an Integrated Aeronautical Information Package (IAIP).
- Primary users: Flight operations personnel, ATS units, and pre-flight information services.
European AIS Data (EAD)
- EAD is a EUROCONTROL-owned service providing a centralized AIS database with a data quality framework.
- Data quality must be consistent; data supplied by States; EAD provides NOTAM data and other AIS data to airspace users.
- Availability: 99.975% uptime; 24-hour service desk; secure channels (VPN, SSL).
- Benefits: Global NOTAM processing, shared system maintenance, and reduced costs via centralized data management.
- Stakeholders include: CAA, ANSP, EUROCONTROL, military, aircraft operators, pilots, ATC, and developers.
AIS Data Providers & Users
- Migrated & Operational providers; Not Committed providers; World-wide providers (e.g., Philippines, Jordan, Canada, New Zealand, etc.).
- Data users include ANSPs, military, educational institutions, developers,
  airlines, airports, and public users.
Publications & Information Packages
- AIP (Aeronautical Information Publication) – static information updated every $28 ext{ days}$ ; a long-term information source.
- AIP Supplements – long-duration or short-duration changes with extensive text/graphics.
- AIP Amendments – updates to the AIP; AIRAC cycle governs timing.
- AICs – Aeronautical Information Circulars; advisory/explanatory information (technical, navigational, legislative, safety).
- PIBs – Pre-Flight Information Bulletins; edited, user-friendly NOTAM summaries for regions/route lists.
- AIRAC Cycle – Aeronautical Information Regulation and Control; changes occur on fixed 28-day intervals; advance notice of 28 days; sometimes 56 days for certain changes.
- NOTAMs – Notices distributed by telecommunication about establishments or changes in facilities or hazards; three categories: NOTAMN (new), NOTAMR (replacement), NOTAMC (cancellation).
- NOTAM format: NOTAM code groups contain 5 letters; first letter is Q; second/third identify subject; fourth/fifth denote status. Example format and plain language entries shown in NOTAM examples.
- Snowtams, Birdtams, ASHTams – specialist NOTAMs for specific subjects.
AIP Spain (ENAIRE) & AIS Resources
- AIP Spain is maintained electronically by ENAIRE; includes GEN, ENR, and AD parts; includes sections on VFR maps, AIS quality, drone information, and ENAIRE AIS services.
- ENAIRE’s AIS portals offer access to AIP Spain content, NOTAMs, PIBs, and related AIS data.
- ICARO – Spain’s NOTAM library (online tool) with NOTAM search, history, and notification via ICARO XXI app; accessible via web and mobile platforms.
- Website references for AIS and NOTAM resources include ENAIRE AIS and ICARO tools; public NOTAM information via ICARO and the NOTAM portal.
NOTAM Details & Formats (Illustrative Examples)
- NOTAMs are written in a standard format with plain-language entries available via PIBs or NOTAM bulletins.
- Example NOTAM structure includes: NOTAM number, location indicator, validity period, and the description of the operational impact (e.g., runway closure, airspace restrictions).
- NOTAMs can be accessed as NOTAMN (new), NOTAMR (replacement), NOTAMC (cancellation); the NOTAM code comprises five letters, with Q-code describing the topic and scope.
- PIBs provide a summarized, user-friendly version of NOTAM information for pilots and operators.
AIS Information Flow & Public Access
- AIS information flows from national AIS units to ANSPs, airports, airline operators, briefing units, and international partners.
- Central access points include AIP portals, NOTAM offices, PIB summaries, and AIS/NOTAM query tools (e.g., ICARO).
- The NOTAM and AIS ecosystem is designed to support flight planning, pre-flight briefing, and en-route operations with up-to-date data.
Aeronautical Information Packages (AIP) – Structure & Content
- GEN (General): differences between local and ICAO procedures, national regulations, sunrise/sunset tables, ICAO location indicators, services provided, charges, etc.
- ENR (En Route): procedures for en-route, airspace descriptions, ATS routes, navigation warnings, radio failure procedures, etc.
- AD (Aerodromes): aerodrome data, SIDs/STARs, instrument approaches, runway dimensions, frequencies, opening times, etc.
- AIRAC: fixed-date cycles for updates; ensure coordination with flight planning and FMS databases.
Practical AIS & NOTAM Tools & Tutorials
- NOP (Network Operations Portal) and NM Flight Management Zone offer tutorials and help resources.
- NOTAMs can be searched by text, validity interval, or by NOTAM reference; ICARO provides a NOTAM repository with historical records and current NOTAMs.
- Video tutorials exist for NM flight management tools and EVITA for crisis visualization.
Aeronautical Charting and AIS Information in Practice
- AIS also covers aeronautical charts, regional communications, and chart updates; AIP Spain includes digital navigation aids, VFR charts, and region-specific updates.
- ENAIRE AIS provides regular updates on NOTAMs, AIP changes, and AIS services for pilots.
Annex 15 References & Domain Context
- ICAO Annex 15 (AIS) forms the international standard for aeronautical information services.
- The AIS framework aligns with European regulations for AIS data sharing, NOTAM dissemination, and AIP maintenance.
Practical Takeaways for Exam Preparation
- Be able to define ASM and describe its three levels (Strategic Level 1, Pre-Tactical Level 2, Tactical Level 3) and the relationship to FUA and TSA.
- Understand the role of NOP/NMOC in airspace data, ATFCM planning, and contingency planning.
- Recognize CDRs (CDR1, CDR2, CDR3) and TSA concepts; know the general color-coding and Category implications.
- Describe what an AUP is, what it contains, and how it is used by AMC to manage daily airspace allocations.
- Recall AIS foundational concepts: IAIP, AIP GEN/ENR/AD structure, AIRAC, AICs, PIBs, NOTAMs, and the roles of EAD and ICARO.
- Identify key international/regulatory references: Reg (EC) 549/2004, Reg (EC) 2150/2005, and Eurocontrol’s ASM-related guidance.
Quick References & Links (as included in the slides)
- Network Operations Portal (NOP): https://www.public.nm.eurocontrol.int/PUBPORTAL/
- EVITA (Crisis Visualization): information found on EUROCONTROL site
- ICARO – Spanish NOTAM library: helpdesk.icaro@enaire.es
- ENAIRE AIS: https://www.enaire.es/servicios/ais
- AIP España / ENAIRE AIP portal: aip.enaire.es
- ICAO Annex 15: AIS framework (international standard)
Important Numbers & Dates (memory aids)
- AIP updates: every $28 ext{ days}$ (AIRAC cycle) $<br>ightarrow ext{timed changes to aeronautical information}$
- AIRAC interval: $28 ext{ days}$ ; some changes may require up to $56 ext{ days}$ notice when feasible
- Regulation references: $Regulation ext{ }(EC) ext{ }No ext{ }549/2004$ ; $Regulation ext{ }(EC) ext{ }2150/2005$
- Availability goals for EAD: 99.975 ext ext{%} uptime; 24h service desk
Keywords to Remember
- ASM Levels: 1 (Strategic), 2 (Pre-Tactical), 3 (Tactical)
- FUA: airspace as a continuum; temporary segregation
- TSA: Temporary Segregated Areas
- CDRs: Conditional Routes (CDR1, CDR2, CDR3) with permanent/non-permanent/tactical designations
- AUP/NOP/NMOC: data sharing and network management
- AIS/EAD/NOTAM/PIB/AIP: core AIS data products and dissemination channels
- AIRAC: regular cycle-based updates; long-term planning and flight planning alignment
Ethical/Practical Implications
- Effective ASM and AIS data management underpin safety, efficiency, and regularity of air navigation.
- Shared airspace use requires transparency and regular stakeholder consultation to maintain trust and compliance.
- Contingency planning (ATFCM/NMOC/CCMS/EVITA) is essential to handle disruptions (weather, system outages, etc.).
Connections to Foundational Principles
- ASM connects with overarching air traffic management (ATM) concepts: safety, efficiency, capacity management, and flexible use of airspace for mixed-aviator needs.
- AIS supports ICAO/BIS standards for data quality, timely dissemination, and interoperability across borders and agencies.
Notable Examples & Scenarios
- Real-life AUP examples show how CDRs and RSA statuses affect daily flight planning.
- NOP provides flight forecasts and network-wide situation awareness to minimize ATFM events.
- TSAs provide reserved airspace for events or activities, balancing national security/operational needs with civilian traffic.
Quick Study Prompts
- Explain the difference between ASM Level 1, 2, and 3 with practical examples.
- What is FUA, and why is it important for cross-border cooperation?
- Differentiate CDR1, CDR2, and CDR3 with color-coding conventions.
- Describe the components of IAIP and how NOTAMs and PIBs feed into pre-flight planning.
- List key AIS players (State AIS, ENAIRE, EAD) and their roles in data provision and usage.
Closing Notes
- The ASM and AIS ecosystems are tightly linked; robust data management, clear procedures, and inter-agency cooperation are essential for safe, efficient, and flexible air navigation in Europe and beyond.