EN 14067-4:2024/prA1
(Amendment)Railway applications - Aerodynamics - Part 4: Requirements and assessment procedures for aerodynamics on open track
Railway applications - Aerodynamics - Part 4: Requirements and assessment procedures for aerodynamics on open track
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.
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
Železniške naprave - Aerodinamika - 4. del: Zahteve in ugotavljanje skladnosti za aerodinamiko na odprti progi - Dopolnilo A1
General Information
- Status
- Not Published
- Publication Date
- 07-Oct-2026
- Technical Committee
- CEN/TC 256 - Railway applications
- Drafting Committee
- CEN/TC 256/WG 6 - Aerodynamics
- Current Stage
- 4097 - End of interruption of work - split/merged
- Start Date
- 14-Mar-2025
- Completion Date
- 14-Apr-2025
Relations
- Effective Date
- 17-Mar-2025
- Effective Date
- 03-Jul-2024
Overview
The EN 14067-4:2024/prA1 standard, developed by CEN, focuses on the aerodynamics of railway applications specifically for open track conditions. This updated standard sets forth comprehensive requirements, test procedures, assessment methods, and acceptance criteria for operating heavy rail rolling stock at speeds exceeding 160 km/h in open air environments. It addresses key aerodynamic factors such as pressure variations, slipstream effects beside the track, and running resistance, which are critical for ensuring safety, performance, and infrastructure integrity.
This standard applies to rolling stock and railway infrastructure with nominal track gauges ranging from 1,435 mm to 1,668 mm, covering typical European standard and broad gauge railways. It also provides proposed test setups to evaluate ballast projection risks associated with high-speed train operations on ballasted tracks.
Key Topics
Pressure Variations and Slipstream Effects
Detailed requirements for managing and assessing the effects of aerodynamic pressure fluctuations and slipstreams generated by trains moving at high speeds along open tracks.Running Resistance Assessments
Methods for evaluating aerodynamic drag as part of running resistance to optimize energy efficiency and operational costs.Load Cases on Infrastructure Components
Identification and evaluation of loads imposed on track infrastructure due to train-induced pressure changes and airflow patterns, helping to prevent wear and damage.Ballast Projection Testing
Procedures for testing and mitigating the risk of ballast stones being projected by slipstreams, which could compromise safety and infrastructure.Test Procedures and Acceptance Criteria
Benchmarked full-scale and laboratory testing methods with updated metrics for accuracy and safety validation.
Applications
This standard is essential for:
Railway operators and rolling stock manufacturers developing or operating high-speed heavy rail systems to ensure compliance with aerodynamic safety and performance criteria.
Infrastructure managers responsible for monitoring the impact of high-speed trains on track stability and nearby structures.
Testing laboratories and certification bodies conducting aerodynamic performance validation and issuing conformity assessments.
Design engineers optimizing train shapes and configurations to reduce slipstream hazards and running resistance on open tracks.
By applying EN 14067-4:2024/prA1, stakeholders can improve passenger comfort, enhance energy efficiency, minimize environmental impact, and protect railway infrastructure from aerodynamic-induced damage.
Related Standards
EN 14067-1 to EN 14067-3
Other parts of the EN 14067 series focusing on overall aerodynamics in different conditions and sub-systems of railway vehicles.EN 14752
Standard concerning rolling stock and aerodynamic testing methods complementing EN 14067 guidelines.UIC Leaflets on Aerodynamics
Recommendations issued by the International Union of Railways addressing additional operational aspects of train aerodynamics.ISO 3095
International standards relating to noise generated by railway rolling stock, relevant due to aerodynamic noise considerations.
Keywords: railway aerodynamics, open track railway, high-speed trains, slipstream effects, pressure variations, running resistance, ballast projection, EN 14067-4, heavy rail systems, aerodynamic testing, railway infrastructure safety, CEN standards, rolling stock standards, track gauge standards.
Frequently Asked Questions
EN 14067-4:2024/prA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Railway applications - Aerodynamics - Part 4: Requirements and assessment procedures for aerodynamics on open track". This standard covers: 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.
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.
EN 14067-4:2024/prA1 is classified under the following ICS (International Classification for Standards) categories: 45.060.01 - Railway rolling stock in general. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 14067-4:2024/prA1 has the following relationships with other standards: It is inter standard links to EN 14067-4:2024+A1:2025, EN 14067-4:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 14067-4:2024/prA1 is associated with the following European legislation: EU Directives/Regulations: 2016/797/EU; Standardization Mandates: M/591. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.
You can purchase EN 14067-4:2024/prA1 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2025
Železniške naprave - Aerodinamika - 4. del: Zahteve in ugotavljanje skladnosti za
aerodinamiko na odprti progi - Dopolnilo A1
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/prA1
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.
DRAFT
EUROPEAN STANDARD
EN 14067-4:2024
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
November 2024
ICS
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 draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 256.
This draft amendment A1, if approved, will modify the European Standard EN 14067-4:2024. If this draft becomes an
amendment, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
inclusion of this amendment into the relevant national standard without any alteration.
This draft amendment was established by CEN 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, Ger
...
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