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 update: 1 May 2025

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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
Conventional railway line	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2023
Conventional screw coupling and other non-automatic coupling systems	Interoperability	Decision	Commission Decision of 30 November 2009 on the reference document referred to in Article 27(4) of Directive 2008/57/EC of the European Parliament and of the Council on the interoperability of the rail system within the Community. (2009/965/EC)
Conventional railway system	International Standard	ISO	ISO/DIS 22575(en) Railway applications — General terms and definitions
Conveyance	International Relations	Convention	Convention concerning International Carriage by Rail (COTIF) Appendix C – Regulations concerning the International Carriage of Dangerous Goods by Rail (RID)
Cooperation mode	Telematics Applications for Freight	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
Coordinating IM	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2023
Coordinating OSS / C-OSS	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2023
Coordination	SERA_EU Transport	Directive	Directive 2012/34/EU of the Parliament and of the Council of 21 November 2012 establishing a single European railway area (recast)
Coordination of requests	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2023
Coordination of TCRs	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2023
Coordination procedure	SERA_EU Transport	Regulation	Commission Implementing Regulation (EU) 2017/2177 of 22 November 2017 on access to service facilities and rail-related services
COPA	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
COPEC	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
COR	Operation	Application Guide	Application Guide GUI/TSI OPE/2024 - version 4.00 of 24/06/2024 Guide for the application of the TSI OPE
CoR	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
CORDIS	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
Core network	International Relations	Regulation	Regulation (EU) 2021/1153 of the European Parliament and of the Council of 7 July 2021 establishing the Connecting Europe Facility and repealing Regulations (EU) No 1316/2013 and (EU) No 283/2014
Core network corridors	International Relations	Regulation	Regulation (EU) 2021/1153 of the European Parliament and of the Council of 7 July 2021 establishing the Connecting Europe Facility and repealing Regulations (EU) No 1316/2013 and (EU) No 283/2014
Coreper	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
Corine	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

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