DS/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


Status:
Current
Type:
Standard
Language:
English
Price from:
€ 104.71

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.


Number of pages: 60

Published: 2016-05-04

Date of approval: 2016-04-07

International relationships : EN 1793-5:2016 IDT

ICS: 17.140.30 - Noise emitted by means of transport 93.080.30 - Road equipment and installations

Item number: M285014


Committees

Committee

  • CEN/TC 226
  • CEN/TC 226/WG 6

Danish committee

DS/S-349