BS ISO 10844:2014

BS ISO 10844:2014 - Acoustics - Specification of test tracks for measuring noise emitted by road vehicles and their tyres

BS ISO 10844:2014 is the definitive standard for the acoustic measurement of road surfaces. This British Standard, identical to the international ISO 10844:2014 standard, provides detailed technical specifications for the design, construction, and maintenance of test tracks used to measure vehicle and tyre noise.

Ensuring consistent, reliable data is critical for vehicle manufacturers, tyre producers, and regulatory bodies. This standard helps organisations comply with noise emission regulations and develop quieter, more sustainable transportation solutions.

Key Features and Benefits:

• Precise Acoustic Specifications: Detailed requirements for track surface texture, geometry, and acoustic absorption to enable accurate, reproducible noise measurements.
• Comprehensive Test Procedures: Guidance on measurement equipment, test conditions, and data analysis to ensure consistent results across different test facilities.
• Regulatory Compliance: Supports compliance with noise emission regulations such as UN Regulation No. 51 and EU Regulation (EU) No 540/2014.
• Product Development: Enables vehicle and tyre manufacturers to evaluate noise performance and make informed design decisions.
• Research and Innovation: Provides a standardised platform for acoustic research, helping drive advancements in noise reduction technologies.

Technical Specifications:

BS ISO 10844:2014 covers the following key technical requirements for test track design and construction:

• Surface Texture: Detailed specifications for the mean texture depth (MTD) and other surface characteristics to ensure consistent acoustic properties.
• Geometry: Guidelines for track length, width, and layout to accommodate various vehicle types and testing scenarios.
• Acoustic Absorption: Limits on the sound absorption coefficient to minimise the influence of the track surface on noise measurements.
• Maintenance: Procedures for regular inspection and maintenance to preserve the track's acoustic performance over time.

The standard also provides comprehensive test methods and data analysis procedures to ensure the reliability and reproducibility of noise measurements, including:

• Measurement Equipment: Specifications for microphones, data acquisition systems, and other instrumentation.
• Test Conditions: Requirements for environmental factors such as temperature, wind, and precipitation to minimise their impact on test results.
• Data Analysis: Guidelines for processing and reporting noise data, including statistical analysis and uncertainty calculations.

By adhering to the technical requirements and test procedures outlined in BS ISO 10844:2014, organisations can generate high-quality, comparable data to support their product development, regulatory compliance, and research initiatives. This standard is an essential tool for the automotive, tyre, and transportation industries, as well as research institutions and government agencies involved in vehicle noise and vibration management.