EN 14067-4:2024

SLOVENSKI STANDARD
01-junij-2024
Železniške naprave - Aerodinamika - 4. del: Zahteve in ugotavljanje skladnosti za
aerodinamiko na odprti progi
Railway applications - Aerodynamics - Part 4: Requirements and assessment
procedures for aerodynamics on open track
Bahnanwendungen - Aerodynamik - Teil 4: Anforderungen und Bewertungsverfahren für
Aerodynamik auf offener Strecke
Applications ferroviaires - Aérodynamique - Partie 4: Exigences et procédures
d'évaluation pour l'aérodynamique à l'air libre
Ta slovenski standard je istoveten z: EN 14067-4:2024
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 14067-4
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2024
EUROPÄISCHE NORM
ICS 45.060.01 Supersedes EN 14067-4:2013+A1:2018
English Version
Railway applications - Aerodynamics - Part 4:
Requirements and assessment procedures for
aerodynamics on open track
Applications ferroviaires - Aérodynamique - Partie 4: Bahnanwendungen - Aerodynamik - Teil 4:
Exigences et procédures d'évaluation pour Anforderungen und Bewertungsverfahren für
l'aérodynamique à l'air libre Aerodynamik auf offener Strecke
This European Standard was approved by CEN on 27 February 2024.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 14067-4:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols . 7
5 Requirements on locomotives and passenger rolling stock . 13
5.1 Limitation of pressure variations beside the track . 13
5.1.1 General. 13
5.1.2 Requirements . 14
5.1.3 Full conformity assessment . 15
5.1.4 Simplified conformity assessment. 15
5.2 Limitation of slipstream effects beside the track . 17
5.2.1 General. 17
5.2.2 Requirements . 17
5.2.3 Full conformity assessment . 19
5.2.4 Simplified conformity assessment. 20
5.3 Aerodynamic loads in the track bed . 22
5.4 Aerodynamically induced ballast projection . 22
5.5 Running resistance . 22
6 Requirements on infrastructure . 23
6.1 Train-induced pressure loads acting on structures parallel to the track . 23
6.1.1 General. 23
6.1.2 Requirements . 23
6.1.3 Conformity assessment . 23
6.2 Train-induced air speeds acting on infrastructure components beside the track . 23
6.3 Train-induced aerodynamic loads in the track bed . 23
6.4 Train-induced air speed acting on people beside the track . 23
6.5 Aerodynamically induced ballast projection . 24
7 Methods and test procedures . 24
7.1 Assessment of train-induced pressure variations beside the track . 24
7.1.1 General. 24
7.1.2 Pressure variations in the pressure field (reference case) . 27
7.1.3 Pressure variations on surfaces parallel to the track. 36
7.1.4 Effect of wind on loads caused by the train . 44
7.2 Assessment of train-induced air flow beside the track . 44
7.2.1 General. 44
7.2.2 Slipstream effects on persons beside the track (reference case) . 44
7.2.3 Slipstream effects on objects beside the track . 48
7.3 Assessment of train-induced aerodynamic loads in the track bed . 48
7.4 Assessment of running resistance . 49
7.4.1 General. 49
7.4.2 Full-scale tests . 49
Annex A (informative) Procedure for full-scale tests regarding train-induced air flow in the
track bed . 57
A.1 General . 57
A.2 Track set-up . 57
A.3 Vehicle configuration and test conditions . 58
A.4 Instrumentation and data acquisition . 58
A.5 Data processing . 59
Bibliography . 60

European foreword
This document (EN 14067-4:2024) has been prepared by Technical Committee CEN/TC 256 “Railway
Applications”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2024, and conflicting national standards shall
be withdrawn at the latest by October 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 14067-4:2013+A1:2018.
Results of the EU-funded research project “AeroTRAIN” (Grant Agreement No. 233985) are contained in
this document.
In comparison with the previous edition, the following technical modifications have been made:
— The scope was amended to cover track gauges other than 1 435 mm. Minor modifications and
improvements were made throughout the whole document. The methods and test procedures for
running resistance and train-induced aerodynamic loads in the track bed were updated.
This document has been prepared under a standardization request addressed to CEN by the European
Commission.
EN 14067, Railway applications — Aerodynamics consists of the following parts:
— Part 4: Requirements and assessment procedures for aerodynamics on open track;
— Part 5: Requirements and assessment procedures for aerodynamics in tunnels;
— Part 6: Requirements and assessment procedures for cross wind assessment;
— Part 7 (TR): Fundamentals for test procedures for train-induced ballast projection.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website. According to the CEN-CENELEC
Internal Regulations, the national standards organisations of the following countries are bound to
implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania,
Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United Kingdom.
Introduction
Trains running on open track generate aerodynamic loads on objects and persons they pass. If trains are
being passed by other trains, trains are also subject to aerodynamic loading themselves. The aerodynamic
loading caused by a train passing an object or a person near the track, or when two trains pass each other,
is an important interface parameter between the subsystems of rolling stock, infrastructure and
operation. It is thus subject to regulation when specifying the trans-European railway system.
Trains running on open track must overcome a running resistance which has a strong effect on the
required engine power, achievable speed, travel time and energy consumption. Thus, running resistance
is often subject to contractual agreements and requires standardized test and assessment methods. The
test set-up for ballast projection was also updated.
1 Scope
This document establishes requirements, test procedures, assessment methods and acceptance criteria
for operating rolling stock in open track. For pressure variations and slipstream effects beside the track,
requirements and assessment methods are provided. For running resistance, assessment methods are
addressed in this document. Load cases on infrastructure components due to train-induced pressure
variations and slipstream effects are addressed in this document. For ballasted track test set-ups for
ballast projection assessment are proposed.
The requirements only apply to rolling stock of the heavy rail system with maximum train speeds above
160 km/h and not to other rail systems. The document is applicable to all rolling stock and infrastructure
in open air with nominal track gauges of 1 435 mm to 1 668 mm inclusive.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. Fo
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