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naSRPS EN 1793-5:2020

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - Sound absorption under direct sound field conditions

General information

45.99     Mar 27, 2025

50.20    May 15, 2025

ISS

Z226/PKS 1

European Norm

17.140.30     93.080.30  

English  

Scope

This European Standard describes a test method for measuring a quantity representative of the intrinsic characteristics of sound reflection from road noise reducing devices: the reflection index.
The test method is intended for the following applications:
- determination of the intrinsic characteristics of sound reflection of noise reducing devices to be installed along roads, to be measured either on typical installations alongside roads or on a relevant sample section;
- determination of the in situ intrinsic characteristics of sound reflection of noise reducing devices in actual use;
- comparison of design specifications with actual performance data after the completion of the construction work;
- verification of the long-term performance of noise reducing devices (with a repeated application of the method).
The test method is not intended for the following applications:
- determination of the intrinsic characteristics of sound reflection of noise reducing devices to be installed in reverberant conditions, e.g. inside tunnels or deep trenches.
Results are expressed as a function of frequency, in one-third octave bands between 100 Hz and 5 kHz. If it is not possible to get valid measurements results over the whole frequency range indicated, the results shall be given in a restricted frequency range and the reasons of the restriction(s) shall be clearly reported.

Life cycle

PREVIOUSLY

PUBLISHED
SRPS EN 1793-5:2016

PUBLISHED
SRPS EN 1793-5:2016/AC:2018

NOW

PROJECT
naSRPS EN 1793-5:2020
45.99 Dispatch of FV draft to CCMC
Mar 27, 2025

Related project

Adopted from FprEN 1793-5