Norm

NEN-EN 1793-5:2014 Ontw. en

Verkeersgeluidbeperkende constructies langs wegen - Beproevingsmethode voor de bepaling van de akoestische prestatie - Deel 5: Intrinsieke kenmerken - In-situ waarden voor geluidsreflectie in vrije veld condities

  • Deze norm is ingetrokken sinds 11-04-2016

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Over deze norm

Status Ingetrokken
Aantal pagina's 52
Gepubliceerd op 01-05-2014
Taal Engels
The present document 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.

Details

ICS-code 17.140.30
93.080.30
Nederlandse titel Verkeersgeluidbeperkende constructies langs wegen - Beproevingsmethode voor de bepaling van de akoestische prestatie - Deel 5: Intrinsieke kenmerken - In-situ waarden voor geluidsreflectie in vrije veld condities
Engelse titel 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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