Digital Aeronautical Information Management (D-AIM)

The aviation operations are increasingly data driven and consequently dependent on accurate and timely aeronautical information exchange. ATM/CNS is increasingly based on a networked and interoperable information sharing infrastructure, including the aircraft.

With the need for predictability there will be an equal need for temporal geo-spatial information in support of decision-making. In order to improve cost effectiveness, there will be a need for reduced fragmentation, and a rationalised CNS infrastructure and service provision.

The objective of D-AIM is to create a test-bed for one of the foundations of future ATM, which is information sharing.

The goal of D-AIM is to enable the existing and future operational AIM infrastructure with geo-enabled AIM components (data stores, interfaces), providing the AIM community with an example application of open geospatial interoperability standards in support of digital AIM. This is achieved through the leveraging of current global geospatial standards into the AIM and AIM users environments.

To reach this objective aeronautical information shall be available digitally. Additionally, information should be integrated, by removing barriers between static and dynamic data and enabling data fusion from multiple sources. This requires standardised data exchange formats and interfaces, ready to be used by the next intended user (system).

D-AIM aims to establish an overall environment for sharing the required information. In order to achieve this, D-AIM will adopt a standard- and service oriented architecture (SOA). This allows static and dynamic aeronautical information to be merged and shared through data-hubs. By adopting a standards-based approach, data is made available in a standardised exchange format through standardised interfaces.

Static and dynamic aeronautical information is made available to service consumers through web-services. Provision of information from MET and AIS data sources via web-services is increasing automation for the service provider and data integrator, opens new areas of service and is in-line with the goal of a paperless environment.

The geo-spatial dimension is essential if the information is to be available when and where needed by users. The filtering of the information increases the situational awareness of the user and helps to prevent information over-flow and reduce costly data management.

D-AIM is using standardised interfaces and data link infrastructure for provision of ground-to-ground information sharing as well as ground-to-air information sharing, integrating AIM and Data Link communication as a common ground for interoperable technology trials.

D-AIM serves the AIM community to meet future ATM requirements of updated aeronautical information, by progressing with automation and integration of data in a new service provision platform.

Deliverables

The deliverables that have been completed are available on OneSky Teams. Future deliverables will be made available on OneSky Teams as they are finalised.

Principles

Interoperable Data Exchange

Global interoperable data exchange is based on the:

  • Standardisation of data content and meaning through data modelling
  • Standardisation of interfaces to provide well defined means to access data and enable seamless interoperation

The main characteristics of interoperability are:

  • <Temporal>   Rich temporality to support timely information filtering and decision making
  • <Open>           Based on documented standards to facilitate community adoption
  • <Geospatial> Rich geo-referencing to support location based and decision making
  • <Global>          Worldwide participation and applicability
  • <Standards> Based on leveraged standards to reduce costs

Interoperability Standards

The following global interoperability standards will be adopted:

Global AIM Data Models

In order to facilitate the interchange of aeronautical information, several exchange models have been developed. Currently, these are:

Service Orientated Architecture

Service-oriented architecture (SOA) is a term that represents a model in which automation logic is decomposed into smaller, distinct units of logic. Within SOA these units of logic are known as services. Distributed services can be chained to provide business automation. In an SOA individual services are encouraged to exist autonomously yet not isolated from each other. Hence these services are required to conform to a set of principles that allow them to evolve independently, while still maintaining a sufficient amount of commonality and standardisation.

SOA enables aeronautical information provision through these standardised digital services.

Geomatic Standards

The International Organization for Standardization Technical Committee 211 (TC211) is responsible for developing the ISO 19100 geographic series of standards. These provide a common framework for developing geospatial applications. The ISO TC211 standards also include temporal and metadata aspects. In addition, the Geography Markup Language (GML) specification provides a way to encode geo-temporal information.

The Open Geospatial Consortium leads the development of implementation specifications for the geospatial industry including location based services such as Web Feature Services and Web Map Services.

World Wide Web Consortium

The World Wide Web Consortium (W3C) develops interoperable technologies (specifications, guidelines, software, and tools) to lead the Web to its full potential. Examples include XML and XML Schemas.

The Organisation for the Advancement of Structured Information Standards

The Organisation for the Advancement of Structured Information Standards (OASIS) drives the development, convergence and adoption of open standards for the global information society. Its work includes SOA and Web Services.

Projects

The principles of D-AIM will be validated through a number of projects.

D-AIM Sweden

D-AIM Sweden is a joint project involving the Swedish Air Navigation Service Provide, LFV, and EUROCONTROL. The project is expected to run until the end of 2009.

The goals of this project are to:

  • Investigate new digital services in addition to current AIS output
  • Deliver timely and filtered quality information into user contexts
  • Proof of concept of interoperable and timely data sharing based on AIM standards
  • Move the current LFV architecture towards Service Oriented Architecture

The following use cases and scenarios will be tried in this project:

  • Loading baseline aeronautical data using Web Feature Services (WFS) and Web Map Services (WMS)
  • Updating a Temporary Segregated Airspace (TSA) & visualising the change in the cockpit display
  • Closing a Runway/Taxiway & visualising this in the cockpit display. This will involve an aerodrome map (AMDB) and an overlay based on a digital NOTAM
  • Sharing geospatial weather data

Video examples of the project trial

Choose any of the links below to watch the airborne display during the first project trial

  1. Take-off and visualisation of AMDB with own-ship-position and obstacles on the moving map cockpit display.
  2. En route, issue of a Temporary Segregated Airspace (TSA) activation message and visualisation of the change on the moving map cockpit display
  3. Landing, issue and broadcast of METAR, SIGMET, ADS-B, runway closure NOTAM and visualisation on the moving map cockpit display
  4. D-AIM Data Integrator use case