DIN EN 1793-5:2018 Edition

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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

Published By	Publication Date	Number of Pages
DIN	2018-12	62

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Categories: 17.140.30 - Noise emitted by means of transport, 93.080.30 - Road equipment and installations, DIN

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Description

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.

Additional information

Published Code	DIN
Published By	Deutsches Institut für Normung
Publication Date	2018-12
Pages Count	62
Language	Germany
Descriptors	Acoustic absorption, Acoustic measurement, Acoustic properties and phenomena, Acoustics, Airborne sound insulation, Building acoustics, Definitions, In situ, Indexes, Laboratory testing, Measurement, Measuring instruments, Measuring techniques, Methods for measuring, Noise control, Noise control devices, Noise protection devices, Noise protection walls, Noise reduction, Properties, Protection devices, Roads, Sound absorption coefficient, Sound fields, Sound insulation, Sound insulation measure, Sound insulation requirement, Sound reflection, Sound sources, Testing, Traffic noise, Streets
File Size	7.5 MB
ICS Codes	17.140.30 - Noise emitted by means of transport 93.080.30 - Road equipment and installations

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DIN EN 1793-5:2018 Edition

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