BS EN ISO 3381:2021 Railway Applications. Acoustics. Noise Measurement Inside Railbound Vehicles

Standard Number: BS EN ISO 3381:2021

Pages: 50

Released: 2021-09-29

ISBN: 978 0 539 06027 0

Name: Railway applications. Acoustics. Noise measurement inside railbound vehicles

Status: Standard

Overview

In the ever-evolving world of railway applications, ensuring passenger comfort and safety is paramount. The BS EN ISO 3381:2021 standard is a crucial document that addresses the measurement of noise inside railbound vehicles. Released on September 29, 2021, this comprehensive 50-page standard provides detailed guidelines and methodologies for accurately assessing acoustic conditions within railway environments.

Why This Standard is Essential

Noise pollution is a significant concern in modern rail transport. Excessive noise can lead to passenger discomfort, health issues, and even impact the overall travel experience. The BS EN ISO 3381:2021 standard is designed to mitigate these issues by providing a robust framework for noise measurement. By adhering to this standard, railway operators can ensure that their vehicles meet the highest acoustic quality standards, thereby enhancing passenger satisfaction and safety.

Key Features

• Comprehensive Guidelines: The standard offers detailed instructions on how to measure noise levels inside railbound vehicles, ensuring consistency and accuracy in data collection.
• Up-to-Date Information: Released in 2021, this standard incorporates the latest advancements and research in the field of acoustics and railway applications.
• International Recognition: As an ISO standard, it is recognized and respected globally, making it a valuable resource for railway operators worldwide.
• Enhanced Passenger Comfort: By following the guidelines set forth in this standard, railway operators can significantly reduce noise pollution, leading to a more comfortable and enjoyable travel experience for passengers.

Detailed Content

The BS EN ISO 3381:2021 standard is meticulously structured to cover all aspects of noise measurement inside railbound vehicles. It includes:

• Measurement Techniques: Detailed methodologies for accurately measuring noise levels, including the use of specific instruments and equipment.
• Data Analysis: Guidelines on how to analyze the collected data to ensure it meets the required standards.
• Reporting: Instructions on how to document and report the findings in a clear and concise manner.
• Compliance: Information on how to ensure that the noise levels within railbound vehicles comply with international standards and regulations.

Who Should Use This Standard?

The BS EN ISO 3381:2021 standard is an invaluable resource for a wide range of professionals in the railway industry, including:

• Railway Operators: To ensure their vehicles meet the highest acoustic standards and provide a comfortable environment for passengers.
• Acoustic Engineers: To accurately measure and analyze noise levels within railbound vehicles.
• Regulatory Bodies: To set and enforce noise level standards within the railway industry.
• Manufacturers: To design and produce railbound vehicles that comply with international noise standards.

Benefits of Compliance

Adhering to the BS EN ISO 3381:2021 standard offers numerous benefits, including:

• Improved Passenger Experience: Reduced noise levels lead to a more pleasant and comfortable journey for passengers.
• Enhanced Safety: Lower noise levels can reduce the risk of hearing damage and other health issues associated with excessive noise exposure.
• Regulatory Compliance: Ensures that railbound vehicles meet international noise standards, avoiding potential fines and legal issues.
• Competitive Advantage: Railway operators that adhere to this standard can differentiate themselves by offering a superior travel experience.

Conclusion

The BS EN ISO 3381:2021 standard is an essential document for anyone involved in the railway industry. By providing comprehensive guidelines for noise measurement inside railbound vehicles, it helps ensure passenger comfort, safety, and compliance with international standards. Whether you are a railway operator, acoustic engineer, regulatory body, or manufacturer, this standard is a valuable resource that can help you achieve the highest levels of acoustic quality in your railbound vehicles.

BS EN ISO 3381:2021

This standard BS EN ISO 3381:2021 Railway applications. Acoustics. Noise measurement inside railbound vehicles is classified in these ICS categories:

• 45.020 Railway engineering in general
• 45.060.01 Railway rolling stock in general
• 17.140.30 Noise emitted by means of transport

This document specifies the measurement method and conditions to obtain reproducible noise levels on-board all kinds of vehicles operating on rails or other types of fixed track, hereinafter conventionally called “unit”, except for track maintenance vehicles in working modes.

This document is applicable to type testing. It does not include all the instructions to carry out monitoring testing or evaluation of noise exposure of passengers or drivers over a whole journey.

This document is not applicable to guided buses.

It provides measurement procedures for vehicle interior noise (in general, a vehicle type test is carried out using only a selected subset of these tests):

• when the vehicle is moving at constant speed;

• when the vehicle is stationary;

• when the vehicle is accelerating or decelerating;

• in the driver's cab when an external warning horn is sounding (specifically required for European Union regulation application)

It does not provide measurement procedures for:

• audibility or intelligibility of any audible signals;

• assessment of warning devices other than warning horns.

The assessment of noise exposure of train crew due to operational conditions is not in the scope of this document.

The results can be used, for example:

• to characterise the noise inside these units;

• to compare the internal noise of various units on a particular track section;

• to collect basic source data for units.

The test procedures specified in this document are of engineering grade (grade 2), the preferred grade for noise declaration purposes as defined in ISO 12001 . If test conditions are relaxed, for example as they are for monitoring of in-service trains, then the results are no longer of engineering grade.

The procedures specified for accelerating and decelerating tests are of survey grade (grade 3).