ERA Railway Terminology Collection

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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Latest release: 1 April 2025

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Starting with "D" (299)

Disclaimer
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
D	Vehicles / VA	ERA Technical Document	Specifications to perform the assessment of conformity of friction elements for wheel tread brakes (Version 3) Technical document ERA/TD/2013-02/INT Friction elements for wheel tread brakes for freight wagons. V. 3.0, 2015
D-ARS function	Registers	Decision	Commission Implementing Decision (EU) 2018/1614 of 25 October 2018 laying down specifications for the vehicle registers referred to in Article 47 of Directive (EU) 2016/797 of the European Parliament and of the Council and amending and repealing Commission Decision 2007/756/EC
da	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
Daily noise exposure level (LEX,8h) (dB(A) re. 20 μPa)	Human and Organisational Factor	Directive	Directive 2003/10/EC of the European Parliament and of the Council of 6 February 2003 on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (noise)
Damage	Freight	Glossary	Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018
Damage indicators	Freight	Glossary	Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018
DANGER (aspect)	ERTMS	Technical Document	ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
Danger Area	Persons with Reduced Mobility	TSI	Commission Regulation (EU) No 1300/2014 of 18 November 2014 on the technical specifications for interoperability relating to accessibility of the Union's rail system for persons with disabilities and persons with reduced mobility.
Danger Point	ERTMS	Technical Document	ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
Dangerous (or hazardous) substance	Freight	Glossary	Handbook of scenarios for assessing major chemical accident risks JRC106029 - Ed. 2017
Dangerous goods	Operation	TSI	Commission Implementing Regulation (EU) 2019/773 of 16 May 2019 on the technical specification for interoperability relating to the operation and traffic management subsystem of the rail system within the European Union and repealing Decision 2012/757/EU
Dangerous goods	Freight	Glossary	Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018
Dangerous goods	EU Policy	Glossary	Glossary for transport statistics - 5TH EDITION 2019
Dangerous goods	Safety / SSC-SA	Directive	Directive (EU) 2016/798 of the European Parliament and of the Council of 11 May 2016 on railway safety (recast)
Dangerous goods	International Relations	Convention	Convention concerning International Carriage by Rail (COTIF) Appendix C – Regulations concerning the International Carriage of Dangerous Goods by Rail (RID)
Dangerous goods / hazardous materials / restricted articles	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2023
Dangerous goods classification	Freight	Glossary	Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018
Dangerous goods event	Freight	Glossary	Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018
Dangerous phenomenon "fully developed"	Freight	Glossary	Handbook of scenarios for assessing major chemical accident risks JRC106029 - Ed. 2017
Dangerous phenomenon (DP) (right side):	Freight	Glossary	Handbook of scenarios for assessing major chemical accident risks JRC106029 - Ed. 2017

Certification Scheme
Common Safety Method
Conformity Assessment
Control-Command and Signalling
Data Protection
Energy
Entity in Charge of Maintenance
ERTMS
EU Policy
Freight
Human and Organisational Factor
Infrastructure
International Relations
International Standard
Interoperability
Noise
Operation
Persons with Reduced Mobility
Railway Tunnels
Registers
Regulation
RNE Glossary
Safety / SSC-SA
Sectorial Scheme
Security
SERA_EU Transport
Telematics Applications for Freight
Telematics Applications for Passenger
Vehicles / VA
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