Acoustics - Railway applications - Measurement of noise emitted by railbound vehicles (ISO 3095:2013)

This International Standard specifies measurement methods and conditions to obtain reproducible and comparable exterior noise emission levels and spectra for all kinds of vehicles operating on rails or other types of fixed track, hereinafter conventionally called ?unit?. This International Standard is applicable to type testing of units. It does not include all the instructions to characterize the noise emission of the other infrastructure related sources (bridges, crossings, switching, impact noise, curving noise, etc.).

Bahnanwendungen - Akustik - Messung der Geräuschemission von spurgebundenen Fahrzeugen (ISO 3095:2013)

Diese Europäische Norm legt die Messverfahren und -bedingungen fest, um reproduzierbare und vergleichbare Außengeräuschpegel und -spektren für alle Arten spurgebundener Fahrzeuge zu gewinnen, die auf Schienen oder anderen Arten fest verlegter Gleise verkehren, hier nachfolgend üblicherweise „Einheit“ genannt.
Diese Norm ist anwendbar für die Typprüfung von Einheiten. Sie umfasst nicht all jene Vorschriften mit denen die Geräuschemission der anderen infrastrukturbezogenen Quellen (Brücken, Bahnübergänge, Weichen, Stoßgeräusche, Kurvengeräusche usw.) bestimmt werden.
Diese Norm ist nicht anwendbar auf
-   die Geräuschemission von arbeitenden Gleisbaumaschinen,
-   die Beurteilung der Umweltbelastung,
-   die Beurteilung der Geräuscheinwirkung,
-   das Geräusch der Warnsignale.
Die Ergebnisse können z. B. benutzt werden,
-   um das von Zügen abgestrahlte Außengeräusch zu charakterisieren,
-   um die Geräuschemission von verschiedenen Einheiten auf einem bestimmten Gleisabschnitt zu vergleichen,
-   um grundlegende Quelldaten für Züge zu erheben.
Die für die Typprüfung in dieser Norm festgelegten Verfahren haben die Genauigkeitsklasse 2 (mit Fehler-grenzen von  2 dB), das ist die für die Zwecke der Geräuschangabe bevorzugte Genauigkeitsklasse, wie in EN ISO 12001 bestimmt. Wenn die Prüfbedingungen (z. B. Fahrzeug- und/oder Gleiszustand, Mess-bedingungen) gelockert werden, z. B. um gewöhnliche Züge am Gleis zu überwachen, haben die Ergebnisse folglich nicht mehr die Genauigkeitsklasse 2.
Die für Beschleunigungs- und Bremsprüfungen festgelegten Verfahren haben die Genauigkeitsklasse 3 (siehe EN ISO 12001).

Acoustique - Applications ferroviaires - Mesurage du bruit émis par les véhicules circulant sur rails (ISO 3095:2013)

L'ISO 3095:2013 spécifie la méthode et les conditions de mesurage pour obtenir des niveaux et spectres d'émission de bruit extérieur reproductibles et comparables pour tous les types de véhicules ferroviaires circulant sur des rails ou d'autres types de voie fixe, ci-après appelés par convention «élément».
L'ISO 3095:2013 est applicable à l'essai de type des éléments. Elle n'inclut pas toutes les instructions qui visent à caractériser l'émission de bruit des autres sources liées à l'infrastructure (les ponts, les passages à niveau, les aiguillages, le bruit d'impact, le bruit en courbe, etc.).
L'ISO 3095:2013 n'est pas applicable:
- au bruit à l'émission des éléments de maintenance des voies lors de leurs phases de travail,
- à l'évaluation de l'impact sur l'environnement,
- à l'évaluation de la gêne due au bruit,
- aux bus guidés,
- aux bruits de signaux d'avertissement.
Les résultats peuvent être utilisés, par exemple:
- pour caractériser le bruit extérieur émis par les unités,
- pour comparer l'émission de bruit de divers éléments sur une section de voie particulière,
- pour recueillir des données de source de base pour les trains.

Akustika - Železniške naprave - Merjenje hrupa, ki ga oddajajo tirna vozila (ISO 3095:2013)

Ta mednarodni standard določa merilne metode in pogoje za pridobivanje ponovljivih in primerljivih ravni in spektrov zunanjega hrupa, ki ga oddajajo različna tirna vozila (v nadaljevanju »enota«). Ta mednarodni standard se uporablja za tipsko preskušanje enot. Standard ne vključuje vseh navodil za označevanje hrupa, ki ga oddajajo drugi viri infrastrukture (mostovi, prehodi, stikalna oprema, udarni zvok, zvok pri zavijanju itd.).

General Information

Status
Published
Public Enquiry End Date
31-Jul-2010
Publication Date
11-Sep-2013
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
04-Sep-2013
Due Date
09-Nov-2013
Completion Date
12-Sep-2013

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 3095:2013
01-oktober-2013
1DGRPHãþD
SIST EN ISO 3095:2005
Akustika - Železniške naprave - Merjenje hrupa, ki ga oddajajo tirna vozila (ISO
3095:2013)
Acoustics - Railway applications - Measurement of noise emitted by railbound vehicles
(ISO 3095:2013)
Bahnanwendungen - Akustik - Messung der Geräuschemission von spurgebundenen
Fahrzeugen (ISO 3095:2013)
Acoustique - Applications ferroviaires - Mesurage du bruit émis par les véhicules
circulant sur rails (ISO 3095:2013)
Ta slovenski standard je istoveten z: EN ISO 3095:2013
ICS:
17.140.30 Emisija hrupa transportnih Noise emitted by means of
sredstev transport
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
SIST EN ISO 3095:2013 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 3095:2013

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SIST EN ISO 3095:2013


EUROPEAN STANDARD
EN ISO 3095

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2013
ICS 17.140.30; 45.020 Supersedes EN ISO 3095:2005
English Version
Acoustics - Railway applications - Measurement of noise emitted
by railbound vehicles (ISO 3095:2013)
Acoustique - Applications ferroviaires - Mesurage du bruit Bahnanwendungen - Akustik - Messung der
émis par les véhicules circulant sur rails (ISO 3095:2013) Geräuschemission von spurgebundenen Fahrzeugen (ISO
3095:2013)
This European Standard was approved by CEN on 1 May 2013.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3095:2013: E
worldwide for CEN national Members.

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SIST EN ISO 3095:2013
EN ISO 3095:2013 (E)
Contents Page
Foreword .3
2

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SIST EN ISO 3095:2013
EN ISO 3095:2013 (E)
Foreword
This document (EN ISO 3095:2013) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 43
"Acoustics".
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 February 2014, and conflicting national standards shall be withdrawn
at the latest by February 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 3095:2005.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 3095:2013 has been approved by CEN as EN ISO 3095:2013 without any modification.
3

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SIST EN ISO 3095:2013

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SIST EN ISO 3095:2013
INTERNATIONAL ISO
STANDARD 3095
Third edition
2013-08-01
Acoustics — Railway applications
— Measurement of noise emitted by
railbound vehicles
Acoustique — Applications ferroviaires — Mesurage du bruit émis
par les véhicules circulant sur rails
Reference number
ISO 3095:2013(E)
©
ISO 2013

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Instrumentation and calibration . 5
4.1 Instrumentation . 5
4.2 Calibration . 5
5 Stationary test . 5
5.1 General . 5
5.2 Environmental conditions . 5
5.3 Track conditions . 6
5.4 Vehicle conditions . 6
5.5 Measurement positions . 7
5.6 Measured quantities . 8
5.7 Test procedure . 8
5.8 Data processing . 9
6 Constant speed test .10
6.1 Environmental conditions .10
6.2 Track conditions .11
6.3 Vehicle conditions .13
6.4 Measurement positions .16
6.5 Measured quantities .17
6.6 Test procedure .17
6.7 Data processing .20
7 Acceleration test from standstill .21
7.1 General .21
7.2 Environmental conditions .21
7.3 Track conditions .22
7.4 Vehicle conditions .22
7.5 Maximum level method .23
7.6 Averaged level method .25
8 Braking test .26
8.1 Environmental conditions .26
8.2 Track conditions .27
8.3 Vehicle conditions .27
8.4 Measurement positions .27
8.5 Measurement quantity .28
8.6 Test procedure .28
8.7 Data processing .28
9 Quality of the measurements .29
9.1 Deviations from the requirements .29
9.2 Measurement tolerances .29
9.3 Measurement spread .29
9.4 Measurement uncertainties .29
10 Test report .29
Annex A (normative) Method to characterize the impulsive character of the noise .31
Annex B (normative) Tests at constant speed — Special cases .32
Annex C (normative) Method to assess acceptable small deviations from acoustic rail
© ISO 2013 – All rights reserved iii

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

roughness requirements .37
Annex D (informative) Guidance for light rail vehicles measurement .39
Annex E (informative) Comparability of test situations in terms of acoustic rail roughness .43
Annex F (informative) Additional measurements .46
Annex G (informative) Quantification of measurement uncertainties according to ISO/
[8]
IEC Guide 98-3:2008 .47
Bibliography .52
iv © ISO 2013 – All rights reserved

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received. www.iso.org/patents
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
The committee responsible for this document is the European Committee for Standardization (CEN) in
collaboration with Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 3095:2005), which has been
technically revised.
© ISO 2013 – All rights reserved v

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

Introduction
Railway exterior noise is encountered both along open track and in and around depots, stops, stations
and other holding locations. It includes a number of different physical sources such as rolling noise,
impact noise, traction noise, aerodynamic noise, curving noise, braking noise, horn noise and noise from
auxiliary equipment and other components. The noise for any given train type strongly depends on the
rolling stock design, operating conditions and the track type and condition.
Rolling noise is one of the main sources which contain a significant and sometimes dominant noise
contribution from the track. This International Standard is intended to characterize the noise emission
from the unit, minimizing the influence of the track.
vi © ISO 2013 – All rights reserved

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SIST EN ISO 3095:2013
INTERNATIONAL STANDARD ISO 3095:2013(E)
Acoustics — Railway applications — Measurement of noise
emitted by railbound vehicles
1 Scope
This International Standard specifies measurement methods and conditions to obtain reproducible and
comparable exterior noise emission levels and spectra for all kinds of vehicles operating on rails or other
types of fixed track, hereinafter conventionally called “unit”.
This International Standard is applicable to type testing of units. It does not include all the instructions
to characterize the noise emission of the other infrastructure related sources (bridges, crossings,
switching, impact noise, curving noise, etc.).
This International Standard is not applicable to:
— the noise emission of track maintenance units while working;
— environmental impact assessment;
— noise immission assessment;
— guided buses;
— warning signal noise.
The results may be used, for example:
— to characterize the exterior noise emitted by units;
— to compare the noise emission of various units on a particular track section;
— to collect basic source data for units.
NOTE 1 The type testing procedures specified in this International Standard are of engineering grade (grade 2),
that is the preferred one for noise declaration purposes, as defined in ISO 12001. If test conditions (e.g. vehicle
and/or track conditions, measuring conditions) are relaxed (e.g. as done for trackside monitoring of in-service
trains), then the results are no longer of engineering grade.
NOTE 2 The procedures specified for accelerating and decelerating tests are of survey grade, see ISO 12001.
NOTE 3 Additional guidance is provided in Annex D for measurements in the specific case of light rail vehicles.
2 Normative references
The following referenced documents, in whole or in part, are normatively referenced in this document
and are indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
IEC 60942:2003, Electroacoustics — Sound calibrators
IEC 61260:1995, Electroacoustics — Octave-band and fractional-octave-band filters
IEC 61260:1995/Amd. 1:2001, Electroacoustics — Octave-band and fractional-octave-band filters —
Amendment 1
IEC 61672-1:2002, Electroacoustics — Sound level meters — Part 1: Specifications
IEC 61672-2:2003, Electroacoustics — Sound level meters — Part 2: Pattern evaluation tests
© ISO 2013 – All rights reserved 1

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

EN 15461:2011, Railway applications — Noise emission — Characterization of the dynamic properties of
track sections for pass by noise measurements (includes Amdendment 1:2010)
EN 15610:2009, Railway applications — Noise emission — Rail roughness measurement related to rolling
noise generation
ISO/IEC 17025:2005, General requirements for the competence of testing and calibration laboratories
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
train
single vehicle or a number of coupled vehicles/units operating on a guided ground transport system
Note 1 to entry: See Table 1.
Table 1 — Definitions of rolling stock formations
Articulated Non-articulated
Vehicle - see unit. Vehicle - any single car on its running gear.
Unit - minimum operational formation of articulated Unit - minimum operational formation comprising of
cars. one or more vehicles coupled together.
Train - refers to any formation which may operate in Train - refers to any formation which may operate
service, it may comprise of one or more units coupled in-service, may be either a single unit or one or more
together. units coupled together.
[SOURCE: EN 13452-1:2003]
3.2
car
single non-articulated element of a railbound vehicle or unit
3.3
type test for noise emission of railbound units
one or more tests performed to prove that a product is capable of conforming to all relevant requirements
of a specification
[SOURCE: ISO 12576-1:2001, 3.27, modified — for noise emission of railbound units has been added.]
3.4
environmental impact assessment test
measurement performed for collecting data to be used in a prediction method for environmental assessment
3.5
acoustic rail roughness
r(x)
variation of the height of the rail running surface associated with rolling noise excitation, expressed as
a function of distance x along the rail
Note 1 to entry: Acoustic rail roughness is expressed in µm.
[SOURCE: EN 15610:2009]
2 © ISO 2013 – All rights reserved

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

3.6
acoustic roughness spectrum
r()λ
amplitude of the acoustic roughness expressed as a function of the wavelength λ
Note 1 to entry: Acoustic roughness spectrum is expressed in μm and usually presented in terms of acoustic

roughness level L in dB re 1 μm.
r
[SOURCE: EN 15610:2009]
3.7
track decay rate
rate of attenuation of vibration amplitude of either vertical or lateral bending wave motion in the rail as
a function of the distance along the rail
Note 1 to entry: It is represented by a one-third octave spectrum of values expressed in decibels per metre (dB/m)
representing attenuation over distance.
[SOURCE: EN 15461:2011 and Amd. 1:2010]
3.8
test section
specific section of track associated with a particular set of measurements
[SOURCE: EN 15610:2009]
3.9
reference track section
portion of track on which the track decay rates and the acoustic roughness levels are controlled
3.10
sound pressure
p
difference between instantaneous total pressure and static pressure
Note 1 to entry: The quantity refers also to the rms value.
[SOURCE: ISO 80000-8:2007]
3.11
sound pressure level
L
p
2
 
p
L =10 lg dB
 
p
p
 0 
where p is the sound pressure and the reference value in airborne acoustics is p = 20 μPa.
0
2
Note 1 to entry: Because of practical limitations of the measuring instruments, p is always understood to denote
the square of a frequency-weighted, frequency-band-limited or time weighted sound pressure or both. If specific
frequency and time weightings, as specified in IEC 61672-1:2002, or specific frequency bands or both are applied,
this should be indicated by appropriate subscripts.
[SOURCE: ISO 80000-8:2007, modified — year added to IEC 61672-1 in Note 1 to entry]
3.12
AF-weighted sound pressure level history
L (t)
pAF
A-weighted sound pressure level as a function of time with time weighting F (fast)
© ISO 2013 – All rights reserved 3

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

3.13
AF-weighted maximum sound pressure level
L
pAFmax
maximum value of the A-weighted sound pressure level determined during the measurement time
interval T by using time weighting F (fast)
[SOURCE: IEC 61672-1:2002]
3.14
A-weighted equivalent continuous sound pressure level
L
pAeq,T
A-weighted sound pressure level given by the following Formula:
T
 2 
1 p(t)
A
 
L =10lg dt dB
p,Aeq T
∫ 2
 T 
p
0
0
 
where
L is the A-weighted equivalent continuous sound pressure level in dB;
pAeq,T
T is the measurement time interval in s;
p (t) is the A-weighted instantaneous sound pressure at running time t in Pa;
A
p is the reference sound pressure; p = 20 μPa.
0 0
Note 1 to entry: Adapted from ISO 1996-1:2003.
3.15
impulsive sound
noise characterized by one or more brief bursts of sound pressure and is such that the duration of a
single impulsive noise is usually less than 1 s
Note 1 to entry: Adapted from ISO 1996-1:2003.
Note 2 to entry: This definition does not apply to a whole pass-by event.
Note 3 to entry: Examples of impulsive noise sources: Blowoff valves, relay switches.
3.16
intermittent sound
noise that occurs at regular or irregular time intervals and is such that the duration of each such
occurrence is more than about 5 s
Note 1 to entry: Adapted from ISO 1996-1:2003.
Note 2 to entry: This definition does not apply to a whole pass-by event.
Note 3 to entry: Intermittence should be assessed relatively to the duration of the event.
Note 4 to entry: Examples: compressor, cooling fans.
3.17
tonal sound
sound characterized by a single frequency component or narrow-band components that emerge audibly
from the total sound
[SOURCE: ISO 1996-1:2003]
4 © ISO 2013 – All rights reserved

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SIST EN ISO 3095:2013
ISO 3095:2013(E)

4 Instrumentation and calibration
4.1 Instrumentation
Each component of the instrumentation system shall meet the requirements for a class 1 instrument
specified in IEC 61672-1:2002.
In the case of measurements of survey grade this requirement is relaxed to class 2 instruments.
The sound calibrator shall meet the requirements of class 1 according to IEC 60942:2003.
Microphones with free field characteristics shall be used. A suitable microphone windscreen shall
always be used.
Where one-third octave frequency band analysis is required, the filters shall meet the requirements of
class 1, according to IEC 61260:1995.
The compliance of the calibrator with the requirements of IEC 60942:2003 shall be verified at least
once a year. The compliance of the instrumentation system with the requirements of IEC 61672-1:2002
and IEC 61672-2:2003 shall be verified at least every 2 years. The date of the last verification of the
compliance with the relevant standards shall be recorded.
4.2 Calibration
Before and after each series of measurements, a sound calibrator shall be applied to the microphone(s) for
verifying the calibration of the entire measuring system at
...

SLOVENSKI STANDARD
oSIST prEN ISO 3095:2010
01-julij-2010
Železniške naprave - Akustika - Merjenje hrupa, ki ga oddajajo tirna vozila (ISO/DIS
3095:2010)
Railway applications - Acoustics - Measurement of noise emitted by railbound vehicles
(ISO/DIS 3095:2010)
Bahnanwendungen - Akustik - Messung der Geräuschemission von spurgebundenen
Fahrzeugen (ISO/DIS 3095:2010)
Applications ferroviaires - Acoustique - Mesurage du bruit émis par les véhicules
circulant sur rails (ISO/DIS 3095:2010)
Ta slovenski standard je istoveten z: prEN ISO 3095
ICS:
17.140.30 Emisija hrupa transportnih Noise emitted by means of
sredstev transport
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
oSIST prEN ISO 3095:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 3095:2010

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oSIST prEN ISO 3095:2010


EUROPEAN STANDARD
DRAFT
prEN ISO 3095
NORME EUROPÉENNE

EUROPÄISCHE NORM

March 2010
ICS 17.140.30; 45.060.01 Will supersede EN ISO 3095:2005
English Version
Railway applications - Acoustics - Measurement of noise emitted
by railbound vehicles (ISO/DIS 3095:2010)
Applications ferroviaires - Acoustique - Mesurage du bruit Bahnanwendungen - Akustik - Messung der
émis par les véhicules circulant sur rails (ISO/DIS Geräuschemission von spurgebundenen Fahrzeugen
3095:2010) (ISO/DIS 3095:2010)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 3095:2010: E
worldwide for CEN national Members.

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oSIST prEN ISO 3095:2010
prEN ISO 3095:2010 (E)
Contents Page
Foreword .3

2

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oSIST prEN ISO 3095:2010
prEN ISO 3095:2010 (E)
Foreword
This document (prEN ISO 3095:2010) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 43
"Acoustics".
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 3095:2005.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s).

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oSIST prEN ISO 3095:2010

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oSIST prEN ISO 3095:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 3095
ISO/TC 43/SC 1 Secretariat: DS
Voting begins on: Voting terminates on:
2010-03-04 2010-08-04
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Railway applications — Acoustics — Measurement of noise
emitted by railbound vehicles
Applications ferroviaires — Acoustique — Mesurage du bruit émis par les véhicules circulant sur rails
[Revision of second edition (ISO 3095:2005)]
ICS 17.140.30; 45.020

ISO/CEN PARALLEL PROCESSING
This draft has been developed within the European Committee for Standardization (CEN), and processed
under the CEN-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
To expedite distribution, this document is circulated as received from the committee secretariat.
ISO Central Secretariat work of editing and text composition will be undertaken at publication
stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
©
International Organization for Standardization, 2010

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oSIST prEN ISO 3095:2010
ISO/DIS 3095
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©
ii ISO 2010 – All rights reserved

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oSIST prEN ISO 3095:2010

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oSIST prEN ISO 3095:2010
ISO/DIS 3095
Contents Page
Foreword . 5
1 Scope. 7
2 Normative references. 7
3 Terms and definitions. 8
4 Instrumentation and calibration . 11
4.1 Instrumentation . 11
4.2 Calibration. 11
5 Stationary test . 11
5.1 General . 11
5.2 Environmental conditions . 12
5.2.1 Acoustical environment . 12
5.2.2 Meteorological conditions. 12
5.2.3 Background sound pressure level . 12
5.3 Track conditions. 12
5.4 Vehicle conditions. 12
5.4.1 General . 12
5.4.2 Normal operating conditions . 12
5.4.3 Additional operating conditions . 13
5.5 Measurement positions . 13
5.5.1 Standard measurement positions . 13
5.5.2 Additional measurement positions . 14
5.6 Measured quantities. 14
5.7 Test procedure . 14
5.8 Data processing . 15
5.8.1 Standard processing. 15
5.8.2 Additional processing. 15
6 Constant speed test. 16
6.1 Environmental conditions . 16
6.1.1 Acoustical environment . 16
6.1.2 Meteorological conditions. 16
6.1.3 Background sound pressure level . 16
6.2 Track conditions. 17
6.2.1 General . 17
6.2.2 Geometry of the line. 17
6.2.3 Track superstructure . 17
6.2.4 Track quality . 17
6.2.5 Rail roughness of the test track . 18
6.2.6 Dynamic properties of the test track. 18
6.2.7 Special conditions. 19
6.3 Vehicle conditions. 19
6.3.1 General . 19
6.3.2 Loading . 19
6.3.3 Wheel tread conditioning . 20
6.3.4 Train composition (adjacent vehicles). 20
6.4 Measurement positions . 21
6.4.1 Standard measurement positions . 21
6.4.2 Additional measurement positions . 21
6.5 Measured quantities. 22
6.6 Test procedure . 22
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oSIST prEN ISO 3095:2010
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6.6.1 Pass-by speeds. 22
6.6.2 Recording and measurement time intervals . 23
6.7 Data processing . 25
6.7.1 Standard processing . 25
6.7.2 Additional processing . 25
7 Acceleration test from standstill . 26
7.1 General. 26
7.2 Environmental conditions. 26
7.2.1 Acoustical environment . 26
7.2.2 Meteorological conditions . 26
7.2.3 Background sound pressure level. 26
7.3 Track conditions . 26
7.4 Vehicle conditions . 27
7.4.1 General. 27
7.4.2 Loading or operating conditions. 27
7.5 Maximum level method . 27
7.5.1 Measurement positions. 27
7.5.2 Measurement quantity. 28
7.5.3 Test procedure . 28
7.5.4 Data processing . 28
7.6 Averaged level method. 29
7.6.1 Measurement positions. 29
7.6.2 Measurement quantity. 29
7.6.3 Test procedure . 29
7.6.4 Data processing . 29
8 Braking test . 30
8.1 Environmental conditions. 30
8.1.1 Acoustical environment . 30
8.1.2 Meteorological conditions . 30
8.1.3 Background sound pressure level. 30
8.2 Track conditions . 30
8.3 Vehicle conditions . 30
8.3.1 General. 30
8.3.2 Loading or operating conditions. 31
8.4 Measurement positions. 31
8.5 Measurement quantity. 31
8.6 Test procedure . 31
8.7 Data processing . 31
9 Quality of the measurements. 32
9.1 Deviations from the requirements . 32
9.2 Measurement tolerances. 32
9.3 Measurement spread . 32
9.4 Measurement uncertainties . 32
10 Test Report . 32
Annex A (normative) Method to characterize the impulsive character of the noise . 34
Annex B (normative) Tests at constant speed - Special cases . 35
B.1 General. 35
B.2 Units with wheelsets located at or close to their centre. 35
B.3 Permanently coupled unit composed of two vehicles. 37
B.4 Measurement of a single trailer unit . 38
Annex C (normative) Method to assess acceptable small deviations from rail roughness
requirements . 40
C.1 Principle. 40
C.2 Data Processing. 40
C.2.1 Generate a 'just compliant' corrected spectrum from the measured acoustic rail
roughness wavelength spectrum (step 1). 40
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C.2.2 Quantify the deviations in the rail roughness frequency spectrum (step 2) . 41
C.2.3 Calculate a revised noise spectrum (step3) . 41
C.3 Acceptance criterion. 41
Annex D (normative)  Additional measurements . 42
D.1 Additional measurements of noise at platforms and stopping points . 42
D.1.1 General . 42
D.1.2 Measurement position . 42
D.1.3 Vehicle conditions. 42
D.2 Additional measurements of noise on bridges. 42
Annex E (informative) Quantification of measurement uncertainties according to ENV13005. 43
E.1 General . 43
E.2 Uncertainty model. 43
E.3 Determination of the standard uncertainty . 44
E.4 Determination of the combined standard uncertainty . 46
E.5 Determination of the combined standard uncertainty . 46
E.6 Example. 46
Annex F (informative) Major influence parameters on track noise including track dynamics . 49
Annex ZA (informative)  Relationship between this European Standard and the Essential
Requirements of EU Directive 2008/57/EC . 50
Bibliography . 51

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oSIST prEN ISO 3095:2010
ISO/DIS 3095
Foreword
This document (prEN 3095:2009) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.


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oSIST prEN ISO 3095:2010
ISO/DIS 3095
Introduction
Railway exterior noise is encountered both along open track and in and around railway yards and stations. It
includes a number of different physical sources such as rolling noise, impact noise, traction noise,
aerodynamic noise, curve squeal, braking noise, horn noise and noise from auxiliary equipment and other
components. The noise for any given train type strongly depends on the rolling stock design, operating
conditions and the track type and condition. Some of the typical sources and where they occur are indicated in
Table 1.
Rolling noise is one of the main sources which contains a significant and sometimes dominant noise
contribution from the track. This standard is intended to characterise the noise from the unit, minimising the
influence of the track. For this reason, rail impact noise, bridge noise and curve squeal are not included. Also
noise from trackside warning systems and horns are not included.
Table 1 — Overview of common railway exterior noise sources and typical operating conditions and
situations. x = covered in this standard, o=not covered
Source Operating conditions Situation
Stationary Acceleration Constant Braking to Braking at Yards/ Along line
from speed standstill speed stations/
standstill stopping
locations
Rolling o x o o x x
noise, incl.
tracks and
bridges
Traction x x x x o x x
noise, incl.
auxiliary
equipment
Arodynamic  x o x
noise
Curve squeal o o o o o
Brake  x x x
screech
Brake friction  X o x x
Impact noise o o o o o
(track)
Impact noise o   o
(coupling)
Compressors x o o o o x
and valve
Horns o o o o o x o

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oSIST prEN ISO 3095:2010
ISO/DIS 3095
1 Scope
This European Standard specifies the measurement method and conditions to obtain reproducible and
comparable exterior noise emission levels and spectra for all kinds of railbound vehicles operating on rails or
other types of fixed track, hereinafter conventionally called “unit”.
This standard is applicable to type testing of units. It does not include all the instructions to characterize the
noise emission of the other infrastructure related sources (bridges, crossings, switching
...

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