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ERA Railway Terminology visual v0 featured

ERA Railway Terminology Collection

Last updated: 12 March 2026

The ERA Railway Terminology Collection gathers terms and abbreviations that are contained in the EU legal framework for railway, technical documents produced by bodies which are engaged in the development of important evolution in the railway system and other relevant glossaries.

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The file you will get by clicking the "Download the full Terminology" button below is in CSV format. To convert it to a readable Excel file:

1. Download the CSV file
2. Open a blank Excel sheet
3. Go to Data → Get Data from CSV → select the CSV file you just downloaded
4. The Excel file will be generated (without any encoding issues)

Starting with "A" (434)

ERA Railway Terminology Collection is a consultation tool, developed to support the sharing of information through the actors involved in running the Single European Railway Area (SERA). The responsibility for the correctness, completeness, accuracy, or reliability of the information in ERA RTC lays upon the authors of the definitions, as they derive from reference documents having their own preparation and approval flow. Users cannot call ERA liable for the use they make of the content. Please consider that when the collection is exported (.csv) and then printed or converted, it becomes uncontrolled.
Term Context Document Type Origin document

ASB

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

ASBL

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

AsBo

Vehicles / VA

Application Guide

Guidelines for the practical arrangements for the vehicle authorisation process - v. 2.1 on 14/02/2024

ASCII

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

ASEAN

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

ASEM

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

ASEM

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

ASEM TFAP

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

ASI

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

ASOR

EU Policy

EU Technical Document

Technical document from the Publications Office of the European Union - ‘Style guide’ Coordination Interinstitutional Style Guide - version on 19.04.2022

ASP

ERTMS

Technical Document

ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023

ASPM

ERTMS

Glossary

ERTMS/ATO Glossary - version 2 on 05.07.2023

ASR

ERTMS

Glossary

ERTMS/ATO Glossary - version 2 on 05.07.2023

ASRO

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

ASS

Withdrawn

Application Guide

TAP TSI Annex B.52 Reservation application_guide - version 1.0 of 06/12/2013

Latest release

Assemble

Entity in Charge of Maintenance

Application Guide

ISO 9879:2024(en) Railway applications — Rolling stock maintenance — Vocabulary

Latest release

Assembly

International Standard

ISO

ISO 5658-2:2006(en) Reaction to fire tests — Spread of flame — Part 2: Lateral spread on building and transport products in vertical configuration

Assembly before putting into service

Infrastructure

Regulation

Commission Regulation (EU) No 1299/2014 of 18 November 2014 on the technical specifications for interoperability relating to the ‘infrastructure’ subsystem of the rail system in the European Union

Assessment

Entity in Charge of Maintenance

Certification Scheme

Certification scheme for ECM and outsourced maintenance functions under Regulation (EU) 2019/779

Assessment

Noise

Directive

Directive 2002/49/EC of the European Parliament and of the Council of 25 June 2002 relating to the assessment and management of environmental noise