ISO/TR 17534-3:2015
(Main)Acoustics — Software for the calculation of sound outdoors — Part 3: Recommendations for quality assured implementation of ISO 9613-2 in software according to ISO 17534-1
Acoustics — Software for the calculation of sound outdoors — Part 3: Recommendations for quality assured implementation of ISO 9613-2 in software according to ISO 17534-1
ISO/TR 17534-3:2015 contains additional recommendations for the calculation method of ISO 9613‑2 that are agreed on to be implemented in software quality ensured test cases with detailed results that allow checking the correct implementation and forms to declare conformity with these requirements by a specified software product.
Acoustique — Logiciels de prévision de bruit dans l'environnement — Partie 3: Recommandations pour l'assurance qualité mise en oeuvre de la norme ISO 9613-2 dans le logiciel selon ISO 17534-1
General Information
Standards Content (Sample)
TECHNICAL ISO/TR
REPORT 17534-3
First edition
2015-01-15
Acoustics — Software for the
calculation of sound outdoors —
Part 3:
Recommendations for quality assured
implementation of ISO 9613-2 in
software according to ISO 17534-1
Acoustique — Logiciels de prévision de bruit dans l’environnement —
PartieParte 3: Recommandations pour l’assurance qualité mise en
oeuvre de la norme ISO 9613-2 dans le logiciel selon ISO 17534-1
Reference number
©
ISO 2015
© ISO 2015
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ii © ISO 2015 – All rights reserved
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Identification of the official documentation . 1
5 Additional recommendations . 1
5.1 General . 1
5.2 Screening . 2
5.3 Limitation of the maximal possible attenuation by barriers . 4
5.4 Calculation of the path-length difference, z . 4
5.5 Diffraction with barrier on reflecting ground . 4
5.6 No level increase caused by barriers due to lateral diffraction . 4
5.7 No ground effect calculated with rays laterally diffracted . 5
5.8 No lateral diffraction with elevated ground screening the direct ray. 5
5.9 Multi-reflection .
the extension to reflections of higher orders . 5
6 Test cases . 6
6.1 General . 6
6.2 Test cases with step by step results and final result interval. 6
6.2.1 T01-T03 .
Flat ground with homogeneous acoustic properties . 6
6.2.2 T01 .
Reflecting ground (G = 0) . 7
6.2.3 T02 .
Mixed ground (G = 0,5) . 8
6.2.4 T03 .
Porous ground (G = 1). 9
6.2.5 T04 .
Flat ground with spatially varying acoustic properties . 9
6.2.6 T05 .
Identical to T04, but calculation with the alternative method according to
ISO 9613-2:1996, 7.3.2 .11
6.2.7 T06 .
Ground with spatially varying heights and acoustic properties .12
6.2.8 T07 .
Identical to T06, but calculation with the alternative method according to
ISO 9613-2:1996, 7.3.2 .15
6.2.9 T08 .
Flat ground with spatially varying acoustic properties and long barrier .16
6.2.10 T09 .
Flat ground with spatially varying acoustic properties and short barrier .19
6.2.11 T10 .
Ground with spatially varying heights and acoustic properties and
short barrier .22
6.2.12 T11 .
Flat ground with homogeneous acoustic properties and cubic building .
receiver at low height .24
6.2.13 T12 .
Flat ground with homogeneous acoustic properties and cubic building .
receiver at large height.28
6.2.14 T13 .
Flat ground with homogeneous acoustic properties and polygonal
building .
receiver at low height .31
6.2.15 T14 .
Ground with spatially varying heights and acoustic properties and
polygonal building .34
6.2.16 T15 .
Flat ground with homogeneous acoustic properties and polygonal
building .
receiver at large height.37
6.2.17 T16 .
Flat ground with homogeneous acoustic properties and three buildings .39
6.2.18 T17 .
Flat ground with homogeneous acoustic properties and three buildings .
alternative position of source and receiver .43
6.2.19 T18 .
Flat ground with homogeneous acoustic properties and complex building
with backyard .46
6.2.20 T19 .
Ground with spatially varying heights and acoustic properties and
reflecting barrier . . .50
7 Declaration of conformity (DOC) .52
Bibliography .56
iv © ISO 2015 – All rights reserved
Foreword
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The committee responsible for this document is ISO/TC 43, Acoustics, Subcommittee SC 1, Noise.
ISO 17534 consists of the following parts, under the general title Acoustics — Software for the calculation
of sound outdoors:
— Part 1: Quality requirements and quality assurance
— Part 2: General recommendations
...
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