EN 1793-5:2016

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 5: Intrinsic characteristics - In situ values of sound reflection under direct sound field conditions

Publication date:   Sep 19, 2016

General information

60.60 Standard published   Mar 30, 2016

CEN

CEN/TC 226 Road equipment

European Norm

17.140.30   Noise emitted by means of transport | 93.080.30   Road equipment and installations

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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

WITHDRAWN
CEN/TS 1793-5:2003

NOW

PUBLISHED
EN 1793-5:2016
60.60 Standard published
Mar 30, 2016

CORRIGENDA / AMENDMENTS

PUBLISHED
EN 1793-5:2016/AC:2018

REVISED BY

IN_DEVELOPMENT
prEN 1793-5