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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Starting with "C" (756)

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
COGECA	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
COGEN	International Standard	EU Technical Document	CEN CENELEC ABBRAVIATION ACRONYM 2025
Collapse of the roof	Freight	Glossary	Handbook of scenarios for assessing major chemical accident risks JRC106029 - Ed. 2017
Collective entry	International Relations	Convention	Convention concerning International Carriage by Rail (COTIF) Appendix C – Regulations concerning the International Carriage of Dangerous Goods by Rail (RID)
Collective risk	Freight	Glossary	Transport of dangerous goods. Risks Management Framework. Framework glossary v. 1.0/2018
Collision of train with obstacle within the clearance gauge	Safety / SSC-SA	Directive	Directive (EU) 2016/798 of the European Parliament and of the Council of 11 May 2016 on railway safety (recast)
Collision of train with rail vehicle	Safety / SSC-SA	Directive	Directive (EU) 2016/798 of the European Parliament and of the Council of 11 May 2016 on railway safety (recast)
Colour region	International Standard	ISO	ISO 3864-4:2011(en) Graphical symbols — Safety colours and safety signs — Part 4: Colorimetric and photometric properties of safety sign materials
Combination packaging	International Relations	Convention	Convention concerning International Carriage by Rail (COTIF) Appendix C – Regulations concerning the International Carriage of Dangerous Goods by Rail (RID)
Combination sign	International Standard	ISO	ISO 3864-1:2011(en) Graphical symbols — Safety colours and safety signs — Part 1: Design principles for safety signs and safety markings
Combined audit	International Standard	ISO	ISO 19011:2018(en) Guidelines for auditing management systems
Combined audit	SMS Safety Culture Human and Organisational Factor	ISO	ISO 9000:2015(en) Quality management systems — Fundamentals and vocabulary	Latest release
Combined road-rail transport or Combined Transport	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
Combined transport	International Relations	Agreement	Agreement between the European Community and the Swiss Confederation on the Carriage of Goods and Passengers by Rail and Road
Combined Transport	Freight	ERA Technical Document	Codification of lines and wagons for combined transport and associated operational procedures Technical document : ERA/TD/2023-01/CCT - Version : 1.1 on 21 March 2023
Combined transport	International Relations	CIT Document	General Terms and Conditions of Carriage for International Freight Traffic by Rail (GTC-CIM) (version 01 January 2019)
Combined Transport	RNE Glossary	Glossary	RNE Glossary - NS_CID_Glossary_2025
Combined transport	Freight	Glossary	Terminology on Combined Transport from Economic Commission for Europe (UN/ECE). Prepared by the UN/ECE, the European Conference of Ministers of Transport (ECMT) and the European Commission (EC). UNITED NATIONS - New York and Geneva, 2001
Combined transport	Freight	Directive	Council Directive 92/106/EEC of 7 December 1992 on the establishment of common rules for certain types of combined transport of goods between Member States
Combined transport	EU Policy	Glossary	Glossary for transport statistics - 6TH EDITION 2026	Latest release

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Control-Command and Signalling
Data Protection
Energy
Entity in Charge of Maintenance
ERTMS
EU Policy
Freight
Infrastructure
International Relations
International Standard
Interoperability
Noise
Operation
Persons with Reduced Mobility
Railway Tunnels
Registers
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RNE Glossary
Safety / SSC-SA
Security
SERA_EU Transport
Single Market Mutual Recognition Conformity Assessment
SMS Safety Culture Human and Organisational Factor
Telematics Applications for Passenger and Freight Services
Vehicles / VA
Withdrawn

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