European Union Agency for Railways

ERA Railway Terminology visual v0 featured

ERA Railway Terminology Collection

Last updated: 5 December 2025.

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)

Download the full Terminology

Starting with "D" (336)

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

Distributor

Single Market Mutual Recognition Conformity Assessment

Decision

Decision No 768/2008/EC of the European Parliament and of the Council of 9 July 2008 on a common framework for the marketing of products, and repealing Council Decision 93/465/EEC

Distributor

ERTMS

Directive

Directive 2014/53/EU of the European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC

Distributor

Single Market Mutual Recognition Conformity Assessment

Regulation

Regulation (EC) No 765/2008 of the European Parliament and of the Council of 9 July 2008 setting out the requirements for accreditation and repealing Regulation (EEC) No 339/93

Distributor

Telematics Applications for Passenger

Application Guide

TAP TSI Annex B.51 Tariff application_guide - version 1.0 of 06/12/2013

Distributor

Telematics Applications for Passenger

Application Guide

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

Distributor

Telematics Applications for Passenger

Application Guide

TAP TSI Annex B.53 Direct Fulfilment application_guide - version 1.0 of 06/12/2013

Distributor

Telematics Applications for Passenger

Application Guide

TAP TSI Annex B.54 Indirect Fulfilment application_guide - version 1.0 of 06/12/2013

Distributor

Telematics Applications for Passenger

Application Guide

TAP TSI Annex B.55 PRM assistance application_guide - version 1.0 of 06/12/2013

Distributor

Energy

Regulation

Regulation (EU) 2023/1804 of the European Parliament and of the Council of 13 September 2023 on the deployment of alternative fuels infrastructure, and repealing Directive 2014/94/EU

Distributor

Single Market Mutual Recognition Conformity Assessment

Regulation

Regulation (EU) 2019/515 of the European Parliament and of the Council of 19 March 2019 on the mutual recognition of goods lawfully marketed in another Member State and repealing Regulation (EC) No 764/2008

Distributor

Single Market Mutual Recognition Conformity Assessment

Regulation

Regulation (EU) 2019/1020 of the European Parliament and of the Council of 20 June 2019 on market surveillance and compliance of products and amending Directive 2004/42/EC and Regulations (EC) No 765/2008 and (EU) No 305/2011

Latest release

Distributor

Single Market Mutual Recognition Conformity Assessment

Regulation

Regulation (EU) 2023/988 of the European Parliament and of the Council of 10 May 2023 on general product safety, amending Regulation (EU) No 1025/2012 of the European Parliament and of the Council and Directive (EU) 2020/1828 of the European Parliament and the Council, and repealing Directive 2001/95/EC of the European Parliament and of the Council and Council Directive 87/357/EEC

Latest release

Disturbance

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

Diversionary lines

RNE Glossary

Glossary

RNE Glossary - NS_CID_Glossary_2025

Latest release

Diversity

ERTMS

Technical Document

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

DJ

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

DK

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

DKE

International Standard

EU Technical Document

CEN CENELEC ABBRAVIATION ACRONYM 2025

Latest release

DM

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

DM

Freight

Glossary

Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018