Does UIC 774-3 apply to freight wagons as well as passenger coaches?

Yes, it applies to all rolling stock types including locomotives, passenger coaches, and freight wagons operating in Europe.

How does UIC 774-3 relate to EN 15528?

UIC 774-3 complements EN 15528 by specifying noise and vibration measurement, performance limits, and mitigation strategies for compliant rolling stock design.

Who should implement UIC Leaflet 774-3?

Rolling stock manufacturers, railway operators, maintenance teams, and environmental certification authorities implement UIC 774-3 to ensure safe, comfortable, and environmentally compliant train operations.

Quiet and Smooth: UIC Leaflet 774-3 on Railway Noise and Vibration Standards Explained

Q: What is UIC Leaflet 774-3?

UIC Leaflet 774-3 defines measurement methods, performance limits, and mitigation strategies for noise and vibration emissions from railway vehicles to ensure safe, comfortable, and environmentally compliant operations.

UIC Leaflet 774-3 defines methods and limits for railway noise and vibration emissions, ensuring environmentally compliant, safe, and comfortable train operations across Europe.

Quiet and Smooth: UIC Leaflet 774-3 on Railway Noise and Vibration Standards Explained

November 20, 2023 12:56 pm

What Is UIC Leaflet 774-3?

UIC Leaflet 774-3 is a standard issued by the International Union of Railways (UIC) that defines measurement methods, performance limits, and mitigation strategies for noise and vibration emissions from railway vehicles.
It ensures environmentally compliant, safe, and comfortable operations for both passenger and freight trains across European rail networks.

Importance of UIC Leaflet 774-3

Noise and vibration from trains can affect passenger comfort, local communities, and track infrastructure.
UIC 774-3 standardizes emission measurement procedures, acceptable limits, and mitigation techniques to reduce environmental impact and maintain operational quality.

Specifies measurement procedures for rolling noise and vibrations
Defines acceptable emission limits for passenger and freight vehicles
Supports design improvements to reduce noise and vibration
Ensures compliance with European environmental regulations

Scope and Technical Coverage

The leaflet applies to all railway vehicles operating in Europe, including locomotives, passenger coaches, and freight wagons.
It covers rolling noise, structure-borne vibration, and noise mitigation measures.

Measurement methods for track and rolling noise
Vibration measurement and analysis
Limits for acceptable emissions
Noise reduction techniques and maintenance procedures
Documentation and reporting for regulatory compliance

Key Technical Parameters

Parameter	Description	Operational Impact
Rolling Noise Level	Measured sound emissions from wheels on track	Ensures environmental compliance and passenger comfort
Structure-Borne Vibration	Transmission of mechanical vibrations to vehicle body and track	Reduces track damage and improves ride quality
Emission Limits	Maximum allowable noise and vibration levels	Prevents community disturbance and regulatory violations
Mitigation Techniques	Design and maintenance strategies to reduce noise/vibration	Enhances passenger comfort and prolongs infrastructure life

Relationship with Other Standards

UIC 774-3 complements EN 15528 (vehicle design), UIC 526-1 (freight wagon design), and national environmental regulations.
It ensures rolling stock noise and vibration performance is standardized, safe, and compatible with European rail operations.

Supports EN 15528 rolling stock design and noise performance standards
Integrates with UIC 526-1 axle and bogie design for noise reduction
Ensures compliance with local and European environmental regulations

Who Uses UIC Leaflet 774-3?

The standard is applied by rolling stock manufacturers, railway operators, infrastructure managers, and regulatory authorities to ensure environmentally compliant and comfortable train operations.