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Independent reference on the Future Railway Mobile Communication System
FRMCS ATLAS

Organisations & bodies

Who shapes FRMCS?

FRMCS is shaped by the interplay of railway organisations, standardisation bodies, authorities and industry. This directory shows their tasks and contributions — from operational requirements through technical specifications to regulatory requirements.

Editorial status: All entries are under review. The short descriptions rely on the linked official source in each case; the original source is always authoritative. A publication by a body is not automatically legally binding.

5 results

UIC – International Union of Railways

OrganisationRequirementsTechnical standardisation

International Union of Railways. Runs the FRMCS programme, in which railways develop their operational requirements and the railway-specific system specifications for FRMCS.

Mainly publishes: Requirements, System specifications

Official source: uic.org

Sub-bodies

  • FWG – Functional Working Group

    Working group/CommitteeRequirements

    Working group within the UIC FRMCS programme for the railways' functional and operational requirements for FRMCS.

    Mainly publishes: Requirements

  • FRMCS SG – FRMCS Steering Group

    Coordination/Validation bodyRequirements

    Steering body of the UIC FRMCS programme.

    Mainly publishes: Programme decisions

3GPP – 3rd Generation Partnership Project

OrganisationTechnical standardisationIn review

Partnership of regional standards organizations that develops mobile communication standards (including 5G). Railway-specific requirements are incorporated into these standards as features; not every 3GPP publication is FRMCS-relevant.

Mainly publishes: Technical specifications, Technical reports

Official source: 3gpp.org

Sub-bodies

  • TSG SA – Technical Specification Group Service and System Aspects

    Working group/CommitteeTechnical standardisationIn review

    3GPP group for services, system architecture and security. Railway-related service and mission-critical requirements are also addressed here.

    Mainly publishes: Technical specifications

    • SA1 – TSG SA Working Group 1 – Services

      Working group/CommitteeTechnical standardisationRequirementsIn review

      Develops service requirements (Stage 1); direct railway-specific work into which railway requirements are fed.

      Mainly publishes: Requirement specifications

EUG – ERTMS Users Group

OrganisationIndustry/UsersRequirementsIn review

Association of infrastructure managers; represents the user perspective in ERTMS specification work and integration.

Mainly publishes: User requirements, Change requests

Official source: ertms.be

Projects such as MORANE-2 or 5GRail are not permanent bodies and are therefore not listed in this directory. FRMCS Atlas is an independent offering and has no official relationship with the organisations named.