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 "M" (306)

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
m	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
m	EU Policy	Glossary	Glossary for transport statistics - 5TH EDITION 2019
m1	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
m1W	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
m2	EU Policy	Glossary	Glossary for transport statistics - 5TH EDITION 2019
m2	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
MA	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
MA	ERTMS	Technical Document	ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
MA	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
MA	ERTMS	ERA Technical Document	Technical Document ERTMS Operational Principles and Rules ERA_ERTMS_OPE_AppA_5 / V 5.0 on 09.04.2019
MAC	ERTMS	Technical Document	ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
Machine-readable format	Interoperability	Regulation	Regulation EU) 2024/903 of the European Parliament and of the Concil of 13 March 2024 laying down measures for a high level of public sector interoperability across the Union.	Latest release
Maglev system	International Standard	ISO	ISO/DIS 22575(en) Railway applications — General terms and definitions
Magnetic track brake	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)
Main establishment	Data Protection	Regulation	Regulation (EU) 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of natural persons with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC
Main line railway system	International Standard	ISO	ISO/DIS 22575(en) Railway applications — General terms and definitions
Main ports	EU Policy	Glossary	Eurostat Transport Glossary on web
Main signal	ERTMS	Technical Document	ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023
Main/running track	EU Policy	Glossary	Glossary for transport statistics - 5TH EDITION 2019
Maintainability	ERTMS	Technical Document	ERTMS/ETCS - Glossary of Terms and Abbreviations - version : 4.0.0 - date 05/07/2023

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