EN 1793-6:2018+A1:2021

Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions

This document describes a test method for measuring a quantity representative of the intrinsic characteristics of airborne sound insulation for traffic noise reducing devices: the sound insulation index.
The test method is intended for the following applications:
-   determination of the intrinsic characteristics of airborne sound insulation of noise reducing devices to be installed along roads, to be measured either in situ or in laboratory conditions;
-   determination of the in situ intrinsic characteristics of airborne sound insulation 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);
-   interactive design process of new products, including the formulation of installation manuals.
The test method is not intended for the determination of the intrinsic characteristics of airborne sound insulation of noise reducing devices to be installed in reverberant conditions, e.g. inside tunnels or deep trenches or under covers.
Results are expressed as a function of frequency in one-third octave bands, where possible, between 100 Hz and 5 kHz. If it is not possible to get valid measurement results over the whole frequency range indicated, the results will be given in a restricted frequency range and the reasons for the restriction(s) will be clearly reported.

Lärmschutzvorrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 6: Produktspezifische Merkmale - In-situ-Werte der Luftschalldämmung in gerichteten Schallfeldern

Diese Europäische Norm beschreibt ein Prüfverfahren zur Messung einer Größe, die für die produkt-spezifischen Merkmale der Luftschalldämmung von Lärmschutzvorrichtungen charakteristisch ist: den Schalldämmungsindex.
Das Prüfverfahren ist für die folgenden Anwendungen vorgesehen:
-   Bestimmung der produktspezifischen Merkmale der Luftschalldämmung von Lärmschutzvorrichtungen, die entlang von Straßen einzubauen sind und die in situ oder unter Prüfstandbedingungen zu messen sind;
-   Bestimmung der in situ gegebenen produktspezifischen Merkmale der Luftschalldämmung von Lärmschutzvorrichtungen im tatsächlichen Einsatz;
-   Vergleich der Bemessungsfestlegungen mit den tatsächlichen Leistungsdaten nach Abschluss der Bauarbeiten;
-   Überprüfung der Langzeitwirksamkeit von Lärmschutzvorrichtungen (durch wiederholtes Anwenden des Verfahrens);
-   interaktiver Bemessungsprozess von neuen Produkten, einschließlich der Formulierung von Einbauanleitungen.
Das Prüfverfahren ist nicht für die Bestimmung der produktspezifischen Eigenschaften der Luftschall-dämmung von Lärmschutzvorrichtungen vorgesehen, die in halligen Schallfeldern einzubauen sind, z. B. innerhalb von Tunneln, in ausgeprägten Tieflagen oder unter Abdeckungen.
Ergebnisse werden als Funktion der Frequenz in Terzbändern zwischen 100 Hz und 5 kHz angegeben, wo möglich. Falls kein gültiges Messergebnis über den gesamten Frequenzbereich zu gewinnen ist, müssen die Ergebnisse im eingeschränkten Frequenzbereich zusammen mit den Gründen der Einschränkung(en) klar angegeben werden.

Dispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination de la performance acoustique - Partie 6 : Caractéristiques intrinsèques - Valeurs in situ d'isolation aux bruits aériens dans des conditions de champ acoustique direct

Le présent document décrit une méthode d'essai permettant de mesurer une grandeur représentative des caractéristiques intrinsèques de l'isolation aux bruits aériens des dispositifs de réduction du bruit du trafic routier : l'indice d'isolation acoustique.
La méthode d'essai est destinée aux applications suivantes :
-   la détermination des caractéristiques intrinsèques d'isolation aux bruits aériens de dispositifs de réduction du bruit destinés à être installés le long des routes, à mesurer sur site ou dans des conditions de laboratoire ;
-   la détermination des caractéristiques intrinsèques sur site d'isolation aux bruits aériens de dispositifs de réduction du bruit en service ;
-   la comparaison des spécifications de conception avec des données de performance réelles de l'ouvrage de construction achevé ;
-   la vérification des performances à long terme de dispositifs de réduction du bruit (par l'application répétée de la méthode) ;
-   un processus interactif de conception de nouveaux produits, y compris la formulation des manuels d'installation.
La méthode d'essai n'est pas destinée à la détermination des caractéristiques intrinsèques d'isolation aux bruits aériens de dispositifs de réduction du bruit destinés à être installés dans des conditions réverbérantes, par exemple à l'intérieur de tunnels ou de tranchées profondes ou sous des couvertures.
Les résultats sont exprimés en fonction de la fréquence, par bandes de tiers d'octave, si possible, entre 100 Hz et 5 kHz. S'il est impossible d'obtenir des résultats de mesure valables sur toute la plage de fréquences indiquée, les résultats seront donnés pour la plage de fréquences réduite et les raisons de la ou des restriction(s) seront clairement consignées.

Protihrupne ovire za cestni promet - Preskusna metoda za ugotavljanje akustičnih lastnosti - 6. del: Bistvene karakteristike - Terenske vrednosti izolirnosti pred zvokom v zraku pri usmerjenem zvočnem polju

General Information

• Status: Published
• Publication Date: 09-Mar-2021
• Withdrawal Date: 29-Sep-2021
• ICS: 17.140.30 - Noise emitted by means of transport
• ICS: 93.080.30 - Road equipment and installations
• Technical Committee: CEN/TC 226 - Road equipment
• Drafting Committee: CEN/TC 226/WG 6 - Noise reducing devices
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 10-Mar-2021
• Completion Date: 10-Mar-2021
• Ref Project: SIST EN 1793-6:2018+A1:2021 - Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions

Relations

• Merged From: EN 1793-6:2018 - Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions
• Effective Date: 18-Jan-2023
• Merged From: EN 1793-6:2018/prA1 - Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions
• Effective Date: 30-Dec-2020
• Revised: prEN 1793-6 - Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation under direct sound field conditions
• Effective Date: 18-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 1793-6:2018
Protihrupne ovire za cestni promet - Preskusna metoda za ugotavljanje akustičnih
lastnosti - 6. del: Bistvene karakteristike - Terenske vrednosti izolirnosti pred
zvokom v zraku pri usmerjenem zvočnem polju
Road traffic noise reducing devices - Test method for determining the acoustic
performance - Part 6: Intrinsic characteristics - In situ values of airborne sound insulation
under direct sound field conditions
Lärmschutzvorrichtungen an Straßen - Prüfverfahren zur Bestimmung der akustischen
Eigenschaften - Teil 6: Produktspezifische Merkmale - In-situ-Werte der
Luftschalldämmung in gerichteten Schallfeldern
Dispositifs de réduction du bruit du trafic routier - Méthode d'essai pour la détermination
de la performance acoustique - Partie 6 : Caractéristiques intrinsèques - Valeurs in situ
d'isolation aux bruits aériens dans des conditions de champ acoustique direct
Ta slovenski standard je istoveten z: EN 1793-6:2018+A1:2021
ICS:
17.140.30 Emisija hrupa transportnih Noise emitted by means of
sredstev transport
93.080.30 Cestna oprema in pomožne Road equipment and
naprave installations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 1793-6:2018+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2021
EUROPÄISCHE NORM
ICS 17.140.30; 93.080.30
English Version
Road traffic noise reducing devices - Test method for
determining the acoustic performance - Part 6: Intrinsic
characteristics - In situ values of airborne sound insulation
under direct sound field conditions
Dispositifs de réduction du bruit du trafic routier - Lärmschutzvorrichtungen an Straßen - Prüfverfahren
Méthode d'essai pour la détermination de la zur Bestimmung der akustischen Eigenschaften - Teil
performance acoustique - Partie 6 : Caractéristiques 6: Produktspezifische Merkmale - In-situ-Werte der
intrinsèques - Valeurs in situ d'isolation aux bruits Luftschalldämmung in gerichteten Schallfeldern
aériens dans des conditions de champ acoustique
direct
This European Standard was approved by CEN on 19 February 2018 and includes Amendment 1 approved by CEN on 17 August
2020.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1793-6:2018+A1:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Sound insulation index measurements . 12
4.1 General principle . 12
4.2 Measured quantity . 12
4.3 Test arrangement . 13
4.4 Measuring equipment . 18
4.4.1 Components of the measuring system . 18
4.4.2 Sound source . 18
4.4.3 Test signal . 18
4.5 Data processing . 19
4.5.1 Calibration . 19
4.5.2 Sample rate . 19
4.5.3 Background noise . 20
4.5.4 Scanning technique using a single microphone . 20
4.5.5 Scanning technique using nine microphones . 20
4.5.6 Adrienne temporal window . 21
4.5.7 Placement of the Adrienne temporal window . 22
4.5.8 Low frequency limit and sample size . 23
4.6 Positioning of the measuring equipment . 24
4.6.1 Selection of the measurement positions. 24
4.6.2 Post measurements . 25
4.6.3 Additional measurements. 25
4.6.4 Reflecting objects . 25
4.6.5 Safety considerations. 25
4.7 Sample surface and meteorological conditions . 26
4.7.1 Condition of the sample surface . 26
4.7.2 Wind . 26
4.7.3 Air temperature . 26
4.8 Single-number rating . 26
4.8.1 General . 26
4.8.2 Acoustic elements . 26
4.8.3 Posts . 27
4.8.4 Global . 27
5 Measurement uncertainty . 28
6 Measuring procedure . 28
7 Test report . 29
Annex A (informative) Categorization of single-number rating . 31
Annex B (informative) Guidance note on use of the single-number rating . 32
Annex C (informative) Measurement uncertainty . 33
C.1 General . 33
C.2 Measurement uncertainty based upon reproducibility data . 33
C.3 Standard deviation of repeatability and reproducibility of the sound insulation
index . 33
Annex D (informative) Template of test report on airborne sound insulation of road traffic
noise reducing devices . 36
D.1 General . 36
D.2 Test setup (example) . 38
D.3 Test object and test situation (example). 39
D.4 Results (example) . 42
D.4.1 Part 1 – Results for ‘element’ in tabular form . 42
D.4.2 Part 2 – Results for ‘element’ in graphic form . 43
D.4.3 Part 3 – Results for ‘post’ in tabular form . 43
D.4.4 Part 4 – Results for ‘post’ in graphic form. 44
D.4.5 Part 5 – Results for global condition (average of ‘element’ and ‘post’) in tabular form . 45
D.4.6 Part 6 – Results for global condition (average of ‘element’ and ‘post’) in graphic form . 46
D.5 Uncertainty (example) . 46
Bibliography . 49

European foreword
This document (EN 1793-6:2018+A1:2021) has been prepared by Technical Committee CEN/TC 226
“Road equipment”, the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by September 2021, and conflicting national standards
shall be withdrawn at the latest by September 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document includes Amendment 1 approved by CEN on 06 January 2020.
This document supersedes !EN 1793-6:2018".
!Deleted text"
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
EN 1793-6 is part of a series of documents and will be read in conjunction with the following:
— EN 1793-1, Road traffic noise reducing devices - Test method for determining the acoustic
performance - Part 1: Intrinsic characteristics of sound absorption under diffuse sound field
conditions;
— EN 1793-2, Road traffic noise reducing devices - Test method for determining the acoustic
performance - Part 2: Intrinsic characteristics of airborne sound insulation under diffuse sound field
conditions;
— EN 1793-3, Ro
...