Method & Sources

Source register

Every source used, the exact statement it supports, and whether that statement has been verified against the KPI definition. 24 sources · 33 source–value links.

Verification overview

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Sources (3)

  • T3 · Intergovernmental organisation · Tier 1 · Official primary

    ⚑ Outdated source
    WELCOME to the GNSS webinar / EUROCONTROL Stakeholder Forum

    EUROCONTROL

    EUROCONTROL presentation using Airbus interference detection data for H2 2020. Presentation material, not a formal statistical publication.

    Published:
    Date not displayed; file path indicates March 2021.
    Accessed:
    9 Nov 2026
    • "38.5% of European en-route traffic operates through regions intermittently, but regularly affected by RFI"; "5% of traffic in these regions could, given current RFI levels, need special assistance."

      Period: H2 2020 · Scope: European en-route traffic

      Limitations: Exposure, not disruption. Based on Airbus detection data. Presentation material. Outdated.

      Reliability: Tier 3 (EUROCONTROL).

      Statement located in retrieved text.

      ✓ Verified primary source

      Checked 9 Nov 2026

  • T3 · Intergovernmental organisation · Tier 1 · Official primary

    ⚑ Outdated source
    Monitoring GNSS RF Interference (Network Manager User Forum)

    EUROCONTROL

    EUROCONTROL presentation covering 1 January–31 December 2021. Presentation material, not a formal statistical publication.

    Published:
    Date not displayed; file path indicates February 2022.
    Accessed:
    9 Nov 2026
    • "Can affect around 38% of European Network Traffic."

      Period: 1 January–31 December 2021 · Scope: European network traffic

      Limitations: Exposure, not disruption. Approximate. Presentation material. Outdated.

      Reliability: Tier 3 (EUROCONTROL).

      Statement located in retrieved text.

      ✓ Verified primary source

      Checked 9 Nov 2026

  • T8 · Supplied input (not evidence) · No governance tier (not evidence)

    Space Autonomy Monitor: Phase 1 KPI framework and initial figures (no URL: not a public document)

    Project owner (internal brief)

    Starting inputs only. Not independent evidence. Figures are preserved for traceability and flagged until traced to a documented source.

    Published:
    Supplied on 9 November 2026. Underlying references were not provided with the brief.
    Accessed:
    9 Nov 2026
    • 38% of European air traffic exposed; up to 40% also referenced.

      Period: Not stated · Scope: Europe

      Limitations: Supplied summary.

      Reliability: Not independent evidence.

      38% matches EUROCONTROL 2021; "up to 40%" not traced.

      ⚑ Source verification pending

      Not checked