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ILNAS-EN 1793-5:2016
Edition
03/2016
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
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
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Abstract
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.
Status
| Standard - Active |
Origin
| Technical Committee : |
| CEN/TC 226 : Road equipment |
Implementation
| start of the vote on the project | 20/03/2014 | date of ratification (dor) | 23/01/2016 | |||
| end of the vote on the project | 20/08/2014 | date of anouncement (doa) | 30/06/2016 | |||
| start of the vote on the final project | 22/10/2015 | date of publication (dop) | 30/09/2016 | |||
| end of the vote on the final project | 22/12/2015 | date of withdrawal (dow) | 30/09/2016 |
|
Publication Official Journal
of the Grand-Duchy of Luxembourg |
03/05/2016 |
| Reference |
Relations
| Evolutions |
| ILNAS-EN 1793-5:2016/AC:2018 |
| Relations to older standards |
| CEN/TS 1793-5:2003 |
International Classification for Standards (ICS codes) :
| 17.140.30 : Noise emitted by means of transport |
| 93.080.30 : Road equipment and installations |
