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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)

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

Essentially flat surface

International Standard

ISO

ISO 5660-1:2015(en) Reaction-to-fire tests — Heat release, smoke production and mass loss rate — Part 1: Heat release rate (cone calorimeter method) and smoke production rate

Establishment

SERA_EU Transport

Directive

Directive (EU) 2015/2302 of the European Parliament and of the Council of 25 November 2015 on package travel and linked travel arrangements, amending Regulation (EC) No 2006/2004 and Directive 2011/83/EU of the European Parliament and of the Council and repealing Council Directive 90/314/EEC

Establishment of technical compatibility with the network

Interoperability

Recommendation

2014/897/EU: Commission Recommendation of 5 December 2014 on matters related to the placing in service and use of structural subsystems and vehicles under Directives 2008/57/EC and 2004/49/EC of the European Parliament and of the Council

Estimated position

ERTMS

Technical Document

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

Estimated speed

ERTMS

Technical Document

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

Estimated Time of Arrival (ETA)

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

Estimated Time of Handover (ETH)

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

Estimated Time of Interchang (ETI)

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

Estimated Time of Interchange (ETI)

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

et

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

ET

International Standard

ISO

ISO 3166 (en) - Online Browsing Platform (OBP) Codes for the representation of names of countries and their subdivisions — Part 1: Country code

ETA

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

ETA

Withdrawn

TSI

Commission Regulation (EU) No 1305/2014 of 11 December 2014 on the technical specification for interoperability relating to the telematics applications for freight subsystem of the rail system in the European Union and repealing the Regulation (EC) No 62/2006

Latest release

ETA

Withdrawn

TSI

Commission Regulation (EU) No 454/2011 of 5 May 2011 on the technical specification for interoperability relating to the subsystem ‘telematics applications for passenger services’ of the trans-European rail system

Latest release

ETC

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

ETC

Infrastructure

Application Guide

Guide on the application of the common specifications of the register of Infrastructure - v. 3.1.0 on 31.03.2025

ETCOM

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

ETCS

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

ETCS

Vehicles / VA

Application Guide

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

ETCS

ERTMS

ERA Technical Document

Technical Document ERTMS Operational Principles and Rules ERA_ERTMS_OPE_AppA_5 / V 5.0 on 09.04.2019