EN 14067-4:2024+A1:2025
(Main + Amendment)Railway applications - Aerodynamics - Part 4: Requirements and assessment procedures for aerodynamics on open track
General Information
- Abstract
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.
- Status
- Published
- Publication Date
- 13-May-2025
- Technical Committee
- CEN/TC 256 - Railway applications
- Drafting Committee
- CEN/TC 256/WG 6 - Aerodynamics
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 14-May-2025
- Due Date
- 08-Oct-2026
- Completion Date
- 14-May-2025
Overview
EN 14067-4:2024+A1:2025 - Railway applications - Aerodynamics - Part 4: Requirements and assessment procedures for aerodynamics on open track (CEN) defines the regulatory framework for assessing aerodynamic effects of high‑speed heavy rail on open track. The standard establishes requirements, test procedures, assessment methods and acceptance criteria for train-induced pressure variations, slipstream effects, running resistance, and aerodynamically induced ballast projection. It applies to heavy-rail rolling stock with maximum speeds above 160 km/h and to infrastructure in open air for nominal track gauges 1 435 mm to 1 668 mm.
Key Topics
- Pressure variations beside the track
- Requirements and assessment methods for peak-to-peak pressure changes and surface pressures on structures parallel to the track.
- Conformity assessment paths: full and simplified procedures.
- Slipstream effects
- Assessment of train-induced air speeds affecting people and objects beside the track; acceptance criteria and test setups.
- Running resistance
- Methods for evaluating aerodynamic contribution to running resistance, including full-scale tests and standardized data handling.
- Aerodynamic loads on infrastructure
- Load cases for structures and components resulting from passing trains; guidance for conformity assessment.
- Ballast projection
- Test set-ups and procedures for assessing aerodynamically induced ballast projection on ballasted track.
- Methods and tools
- Use of Computational Fluid Dynamics (CFD) and full-scale measurement procedures; instrumentation, data acquisition and processing requirements are specified.
- Scope constraints
- Applicable only to heavy rail (>160 km/h) and open air conditions; not intended for other rail systems or tunnel-specific conditions (see EN 14067 parts).
Applications
Who uses EN 14067-4:2024+A1:2025 and why:
- Rolling stock designers and manufacturers - to demonstrate aerodynamic conformity and to reduce slipstream, pressure loads and running resistance during design and certification.
- Infrastructure engineers and asset owners - to evaluate structural loads, people safety beside the track, and to design protective elements (barriers, parapets).
- Rail operators and planners - to incorporate aerodynamic impacts into operational rules, platform and trackside safety assessments.
- Testing laboratories and certification bodies - to perform full-scale tests, CFD validation and conformity assessments according to CEN requirements.
- Procurement and specification teams - to define contractual acceptance criteria for new rolling stock and infrastructure upgrades.
Related Standards
- EN 14067 series (Parts 5, 6, 7) - tunnels, cross-wind, ballast projection guidance
- EN 1991‑2 (Eurocode 1: traffic loads on bridges)
- EN 17343 (general railway terms)
- EN 16727‑2‑2 (noise barrier mechanical performance)
- ISO 8756 (handling of temperature, pressure and humidity data)
EN 14067-4:2024+A1:2025 is a key reference for anyone addressing railway aerodynamics, open-track safety, and performance testing for high-speed heavy rail.
Relations
- Effective Date
- 17-Mar-2025
- Effective Date
- 17-Mar-2025
- Effective Date
- 25-Aug-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Get Certified
Connect with accredited certification bodies for this standard
Bureau Veritas Railway Certification
Railway and transportation certification.
Deutsch Quality Systems (India) Pvt. Ltd. (DQS India)
Subsidiary of DQS Holding GmbH, founding member of IQNet. CDSCO Notified Body.
Excellence Ireland Quality Association (EIQA)
Irish quality certification organization.
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Frequently Asked Questions
EN 14067-4:2024+A1:2025 is a standard 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+A1:2025 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+A1:2025 has the following relationships with other standards: It is inter standard links to EN 14067-4:2024, EN 14067-4:2024/prA1, ISO 8756:1994, EN 17343:2023, EN 1991-2:2003, EN 2599:2001, EN 16727-2-2:2016, EN 15273-1:2009, EN 14752:2005, EN 14531-1:2015+A1:2018, EN 14531-2:2015, EN 14752:2025, EN 14067-6:2018+A1:2022, EN 14531-1:2015, EN 14067-6:2010. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 14067-4:2024+A1:2025 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.
EN 14067-4:2024+A1:2025 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.