EN 16272-2:2023
(Main)Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics - Airborne sound insulation under diffuse sound field conditions
Railway applications - Infrastructure - Noise barriers and related devices acting on airborne sound propagation - Test method for determining the acoustic performance - Part 2: Intrinsic characteristics - Airborne sound insulation under diffuse sound field conditions
This document specifies the laboratory method for measuring the airborne sound insulation performance of railway noise barriers in reverberant conditions. It covers the assessment of the intrinsic performance of noise barriers and related devices acting on airborne sound propagation that can reasonably be assembled inside the testing facility described in EN ISO 10140 2 and EN ISO 10140 4.
This method is not intended for the determination of the intrinsic characteristics of airborne sound insulation of noise barriers to be installed on railway in non-reverberant conditions.
All noise reducing devices different from noise barriers and related devices acting on airborne sound propagation, e.g. devices for attenuation of ground borne vibration and on board devices, are out of the scope of this document.
Bahnanwendungen - Oberbau - Lärmschutzwände und verwandte Vorrichtungen zur Beeinflussung der Luftschallausbreitung - Prüfverfahren zur Bestimmung der akustischen Eigenschaften - Teil 2: Produktspezifische Merkmale - Luftschalldämmung unter den Bedingungen eines diffusen Schallfeldes
Dieses Dokument legt die Labormethode zur Messung der Luftschalldämmeigenschaften von Lärmschutzwänden für Eisenbahnen in halligen Umgebungen fest. Es beinhaltet die Bewertung der produktspezifischen Merkmale von Lärmschutzwänden und verwandten Vorrichtungen gegen Schallübertragung, die in den Prüfeinrichtungen nach EN ISO 10140 2 und EN ISO 10140 4 untersucht werden können.
Dieses Verfahren ist nicht für die Bestimmung der produktspezifischen Eigenschaften der Luftschalldämmung von Lärmschutzwänden bestimmt, die für Schienenwege unter nicht halligen Bedingungen installiert werden sollen.
Alle Lärmminderungsvorrichtungen, die nicht zu Lärmschutzwänden und verwandten Vorrichtungen gegen Schallübertragung gehören, z. B. Vorrichtungen zur Verminderung von Erdbodenerschütterungen und mittransportierte Vorrichtungen, gehören nicht zum Anwendungsbereich dieses Dokuments.
Applications ferroviaires - Infrastructure - Dispositifs de réduction du bruit - Méthode d'essai pour la détermination de la performance acoustique - Partie 2: Caractéristiques intrinsèques - Isolation au bruit aérien dans des conditions de champ acoustique diffus
Le présent document définit la méthode en salle réverbérante permettant de mesurer les performances d'isolation aux bruits aériens des écrans antibruit dans des conditions de champ réverbéré. Il couvre l'évaluation des performances intrinsèques des dispositifs de réduction du bruit qui peuvent raisonnablement être assemblés à l'intérieur du local d'essai décrit dans l'EN ISO 10140 2 et l'EN ISO 10140 4.
La présente méthode n'est pas destinée à déterminer les caractéristiques intrinsèques de l'isolation aux bruits aériens des écrans antibruit destinés à être installés sur des voies ferrées en conditions de champ non réverbéré.
Tous les dispositifs de réduction du bruit, autres que les écrans antibruit et autres dispositifs associés agissant sur la propagation des bruits aériens, par exemple les dispositifs d'atténuation des vibrations transmises par le sol et les dispositifs embarqués, ne relèvent pas du domaine d'application du présent document.
Železniške naprave - Infrastruktura - Protihrupne ovire in pripadajoče naprave, ki vplivajo na širjenje zvoka v zraku - Preskusna metoda za ugotavljanje akustičnih lastnosti - 2. del: Posebne karakteristike - Izolacija zvoka v zraku pri razpršenem zvočnem polju
Ta dokument določa laboratorijsko metodo za merjenje lastnosti za izolacijo pred zvokom v zraku pri protihrupnih ovirah za železnice v odmevnih pogojih. Zajema vrednotenje posebnih karakteristik protihrupnih ovir in pripadajočih naprav, ki vplivajo na širjenje zvoka po zraku, ki jih je mogoče razumno sestaviti v laboratoriju, opisanem v standardih EN ISO 10140-2 in EN ISO 10140-4.
Ta metoda ni namenjena ugotavljanju posebnih karakteristik izolacije pred zvokom po zraku protihrupnih ovir za namestitev na železnicah v neodmevnih pogojih.
Vse protihrupne naprave, ki ne spadajo med protihrupne ovire in pripadajoče naprave, ki vplivajo na širjenje zvoka po zraku, npr. naprave za zmanjšanje talnih vibracij in naprave v vozilih, niso zajete v tem evropskem standardu.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2024
Železniške naprave - Infrastruktura - Protihrupne ovire in pripadajoče naprave, ki
vplivajo na širjenje zvoka v zraku - Preskusna metoda za ugotavljanje akustičnih
lastnosti - 2. del: Posebne karakteristike - Izolacija zvoka v zraku pri razpršenem
zvočnem polju
Railway applications - Infrastructure - Noise barriers and related devices acting on
airborne sound propagation - Test method for determining the acoustic performance -
Part 2: Intrinsic characteristics - Airborne sound insulation under diffuse sound field
conditions
Bahnanwendungen - Oberbau - Lärmschutzwände und verwandte Vorrichtungen zur
Beeinflussung der Luftschallausbreitung - Prüfverfahren zur Bestimmung der
akustischen Eigenschaften - Teil 2: Produktspezifische Merkmale - Luftschalldämmung
unter den Bedingungen eines diffusen Schallfeldes
Applications ferroviaires - Infrastructure - Dispositifs de réduction du bruit - Méthode
d'essai pour la détermination de la performance acoustique - Partie 2: Caractéristiques
intrinsèques - Isolation au bruit aérien dans des conditions de champ acoustique diffus
Ta slovenski standard je istoveten z: EN 16272-2:2023
ICS:
17.140.30 Emisija hrupa transportnih Noise emitted by means of
sredstev transport
93.100 Gradnja železnic Construction of railways
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 16272-2
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2023
EUROPÄISCHE NORM
ICS 93.100 Supersedes EN 16272-2:2012
English Version
Railway applications - Infrastructure - Noise barriers and
related devices acting on airborne sound propagation -
Test method for determining the acoustic performance -
Part 2: Intrinsic characteristics - Airborne sound insulation
under diffuse sound field conditions
Applications ferroviaires - Infrastructure - Dispositifs Bahnanwendungen - Infrastruktur - Lärmschutzwände
de réduction du bruit - Méthode d'essai pour la und verwandte Vorrichtungen zur Beeinflussung der
détermination de la performance acoustique - Partie 2: Luftschallausbreitung - Prüfverfahren zur Bestimmung
Caractéristiques intrinsèques - Isolation au bruit aérien der akustischen Eigenschaften - Teil 2:
dans des conditions de champ acoustique diffus Produktspezifische Merkmale - Luftschalldämmung
unter den Bedingungen eines diffusen Schallfeldes
This European Standard was approved by CEN on 8 October 2023.
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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16272-2:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 7
2 Normative references . 7
3 Terms, definitions, symbols and abbreviations . 8
3.1 Terms and definitions . 8
3.2 Symbols and abbreviations . 9
4 Test arrangement . 9
5 Test procedure and evaluation . 10
5.1 Test method . 10
5.2 Expression of results . 10
6 Measurement uncertainty . 10
7 Test report . 11
Annex A (normative) Measurement uncertainty . 12
A.1 General . 12
A.2 Measurement uncertainty based upon reproducibility data . 12
A.3 Standard deviation of repeatability and reproducibility of the sound reduction index . 12
Annex B (normative) Test report template . 14
B.1 Overview . 14
B.2 Test object (example) . 15
B.3 Test situation (example) . 17
B.3.1 Test rooms and test arrangement . 17
B.3.2 Test equipment and test procedures . 18
B.3.3 Test conditions . 19
B.4 Test results (example) . 19
B.5 Measurement uncertainty (example) . 20
Bibliography . 21
European foreword
This document (EN 16272-2:2023) has been prepared by Technical Committee CEN/TC 256 “Railway
application”, the secretariat of which is held by DIN.
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 May 2024 and conflicting national standards shall be
withdrawn at the latest by May 2024.
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 supersedes EN 16272-2:2012.
With respect to the superseded document, the following changes have been made:
— The title has been slightly changed.
— The declaration of measurement uncertainty and the related confidence level is now mandatory.
— An annex with the values of the standard deviation of reproducibility and repeatability has been
added; this makes possible the declaration of the measurement uncertainty and the related
confidence level, which is now mandatory (Annex A).
— A detailed example has been added, including the declaration of the uncertainty (Annex B).
EN 16272-2 is part of a series of standards and should be read in conjunction with the other parts. All
parts are listed below:
EN 16272-1, Railway applications — Infrastructure — Noise barriers and related devices acting on
airborne sound propagation — Test method for determining the acoustic performance — Part 1: Intrinsic
characteristics - Sound absorption under diffuse sound field conditions
EN 16272-2, Railway applications — Infrastructure — Noise barriers and related devices acting on
airborne sound propagation — Test method for determining the acoustic performance — Part 2: Intrinsic
characteristics - Airborne sound insulation under diffuse sound field conditions (the present document)
EN 16272-3-1, Railway applications — Infrastructure — Noise barriers and related devices acting on
airborne sound propagation — Test method for determining the acoustic performance — Part 3-1:
Normalized railway noise spectrum and single number ratings for diffuse sound field applications
EN 16272-3-2, Railway applications — Infrastructure — Noise barriers and related devices acting on
airborne sound propagation — Test method for determining the acoustic performance — Part 3-2:
Normalized railway noise spectrum and single number ratings for direct sound field applications
EN 16272-4, Railway applications — Track — Noise barriers and related devices acting on airborne sound
propagation — Test method for determining the acoustic performance — Part 4: Intrinsic characteristics -
In situ values of sound diffraction under direct sound field conditions
EN 16272-5, Railway applications — Infrastructure — Noise barriers and related devices acting on
airborne sound propagation — Test method for determining the acoustic performance — Part 5: Intrinsic
characteristics - Sound absorption under direct sound field conditions
EN 16272-6, Railway applications — Infrastructure — Noise barriers and related devices acting on
airborne sound propagation — Test method for determining the acoustic performance — Part 6: Intrinsic
characteristics - Airborne sound insulation under direct sound field conditions
CEN/TS 16272-7, Railway applications — Track — Noise barriers and related devices acting on airborne
sound propagation — Test method for determining the acoustic performance — Part 7: Extrinsic
characteristics - In situ values of insertion loss
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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, Türkiye and the United
Kingdom.
Introduction
Noise barriers installed along railways should provide adequate sound insulation so that sound
transmitted through the device is not significant compared with the sound diffracted over the top. This
document specifies a test method for qualifying the intrinsic airborne sound insulation performance for
noise barriers designed for railways in reverberant conditions, e.g. inside tunnels or deep trenches or
under covers.
The measurement results of this method for airborne sound insulation are comparable but not identical
with the results of the test method EN 16272-6, mainly because the present method uses a diffuse sound
field, while the other method assumes a directional sound field. Research studies suggest that good
correlation exists between field data, measured according to EN 16272-6 and laboratory data, measured
according to the method described in the present document [1], [2], [3], [4].
This document is not concerned with determining insertion loss (extrinsic performance) which
additionally depends on factors that are not related to the product itself; e.g. the dimensions of the barrier
and quality of installation work and site factors such as ground impedance, site geometry, etc. The test is
designed to allow the intrinsic airborne sound insulation performance of the device to be measured; the
resulting rating should aid the selection of devices for reverberant rail side applications.
For the purpose of this document reverberant conditions are defined based on the geometric envelope,
e, across the railway formed by the barriers, trench sides or buildings (the geometric envelope does not
include the rail surface) as shown by the dashed lines in Figure 1. Conditions are defined as being
reverberant when the percentage of open space in the geometric envelope is less than or equal to 25 %,
i.e. reverberant conditions occur when w/e ≤ 0,25, where e = (w+h +h ).
1 2
NOTE This method can be used to qualify n
...
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