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  • BSI
    19/30400897 DC BS EN ISO 3381. Railway applications. Acoustics. Noise measurement inside railbound vehicles
    Edition: 2019
    $44.66
    / user per year

Description of 19/30400897 DC 2019

This document specifies the measurement method and conditions to obtain reproducible and comparable 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.

NOTE

For constant speed tests the concept of “comparability” needs further caution, as this term is used as well to classify the measurement precision grade related to track roughness and track decay rates given in this document. Nevertheless, the measurement may be acceptable as type test on a track of controlled acoustic quality, but not compliant to the track specification given in this document.

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:

  • 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.

NOTE

In general, a vehicle type acceptance test would require only a selected subset of these tests to be performed.

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 may 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), that is the preferred one for noise declaration purposes, as defined in EN ISO 12001. If test conditions are relaxed for example as done 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.



Standard Number19/30400897 DC
TitleBS EN ISO 3381. Railway applications. Acoustics. Noise measurement inside railbound vehicles
StatusDefinitive
Publication Date2019-10-11
Identical National Standard OfISO/DIS 3381
DescriptorsRailways, Noise (environmental), Testing conditions, Internal, Acoustic measurement, Railway vehicles, Test equipment, Railway equipment, Wave physics, Acoustics, Sound intensity
ICS45.060.01 Railway rolling stock in general, 17.140.30 Noise emitted by means of transport, 45.020 Railway engineering in general
CommitteeEH/1/2
PublisherBSI
Pages51

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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