EN ISO 3095:2005

Railway applications - Acoustics - Measurement of noise emitted by railbound vehicles (ISO 3095:2005)

ISO 3095:2005 specifies the conditions for obtaining reproducible and comparable measurement results of levels and spectra of noise emitted by all kinds of vehicles operating on rails or other types of fixed track, except for track maintenance vehicles in operation.
It is applicable to type testing and periodic monitoring testing.
The results may be used, for example, to characterize the noise emitted by these trains, to compare the noise emission of various vehicles on a particular track section, and to collect basic source data for trains.
The test procedures specified in ISO 3095:2005 are of engineering grade (grade 2, with a precision of 2 dB), that is the preferred one for noise declaration purposes, as defined in ISO 12001.
The procedures specified for accelerating and decelerating tests are of survey grade.

Bahnanwendungen - Akustik - Messung der Geräuschemission von spurgebundenen Fahrzeugen (ISO 3095:2005)

Applications ferroviaires - Acoustique - Mesurage du bruit émis par les véhicules circulant sur rails (ISO/FDIS 3095:2005)

L'ISO 3095:2005 spécifie les conditions requises pour obtenir des résultats de mesure reproductibles et comparables des niveaux et des spectres du bruit émis par tous les types de véhicules circulant sur rails ou tous autres véhicules à déplacement guidé, ci-après désignés conventionnellement «train», exceptés les véhicules de maintenance de la voie en fonctionnement.
Elle est applicable pour les essais de type et les essais de contrôle périodique («monitoring»).
Les résultats peuvent être utilisés, par exemple, pour caractériser le bruit émis par ces trains, pour comparer l'émission de bruit de différents véhicules sur une section de voie particulière et pour collecter des données de base relative à l'émission des trains.
Les procédures d'essai décrites dans l'ISO 3095:2005 sont de la classe expertise (classe 2 avec une précision de plus ou moins 2 dB), méthode à préférer pour la déclaration du bruit, telle que définie dans l'ISO 12001.
Les procédures spécifiées pour les essais d'accélération et de décélération sont de la classe contrôle.

Železniške naprave – Akustika – Merjenje hrupa, ki ga oddajajo tirna vozila (ISO 3095:2005)

General Information

• Status: Withdrawn
• Publication Date: 14-Aug-2005
• Withdrawal Date: 06-Aug-2013
• ICS: 17.140.30 - Noise emitted by means of transport
• ICS: 45.060.01 - Railway rolling stock in general
• Technical Committee: CEN/TC 256 - Railway applications
• Drafting Committee: CEN/TC 256/WG 3 - Noise emission
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 07-Aug-2013
• Completion Date: 07-Aug-2013
• Directive: 2001/16/EC - Directive 2001/16/EC of the European Parliament and of the Council of 19 March 2001 on the interoperability of the trans-European conventional rail system
• Directive: 93/38/EEC - Procurement procedures of entities operating in the water, energy, transport and telecommunications sectors
• Directive: 96/48/EC - Interoperability of the trans-European high-speed rail system
• Mandate: M/024 - Mandate to CEN/CENELEC/ETSI for programming and standardization in the field of railway equipment
• Mandate: M/275 - Mandate to CEN/CENELEC/ETSI for standardization in the field of railway equipment on the interoperability of the Trans-European high-speed rail system
• Ref Project: SIST EN ISO 3095:2005 - Railway applications - Acoustics - Measurement of noise emitted by railbound vehicles (ISO 3095:2005)

Relations

• Replaced By: EN ISO 3095:2013 - Acoustics - Railway applications - Measurement of noise emitted by railbound vehicles (ISO 3095:2013)
• Effective Date: 14-Aug-2013

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2005
Železniške naprave – Akustika – Merjenje hrupa, ki ga oddajajo tirna vozila (ISO
3095:2005)
Railway applications - Acoustics - Measurement of noise emitted by railbound vehicles
(ISO 3095:2005)
Bahnanwendungen - Akustik - Messung der Geräuschemission von spurgebundenen
Fahrzeugen (ISO 3095:2005)
Applications ferroviaires - Acoustique - Mesurage du bruit émis par les véhicules
circulant sur rails (ISO/FDIS 3095:2005)
Ta slovenski standard je istoveten z: EN ISO 3095:2005
ICS:
17.140.30
45.060.01
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 3095
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2005
ICS 17.140.30; 45.060.01
English Version
Railway applications - Acoustics - Measurement of noise emitted
by railbound vehicles (ISO 3095:2005)
Applications ferroviaires - Acoustique - Mesurage du bruit Bahnanwendungen - Akustik - Messung der
émis par les véhicules circulant sur rails (ISO/FDIS Geräuschemission von spurgebundenen Fahrzeugen (ISO
3095:2005) 3095:2005)
This European Standard was approved by CEN on 19 May 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3095:2005: E
worldwide for CEN national Members.

Contents
page
Foreword .3
1 Scope .4
2 Normative references .4
3 Terms and definitions.4
4 Measurement quantities .11
5 Instrumentation.11
6 Test conditions .12
7 Test procedure .15
8 Test report .17
Annex A (normative)  Rail roughness measurement specifications.19
Annex B (normative)  Additional measurements .25
Annex C (informative)  Procedure for determining the rail roughness limit spectrum .28
Annex D (informative) Major influence parameters on track noise including track dynamics.33
Annex ZA (informative)  Relationship between this European Standard and the Essential
Requirements of EU Directive 96/48.34
Bibliography.36

Foreword
This European Standard (EN ISO 3095:2005) 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 2006, and conflicting national standards shall be withdrawn
at the latest by February 2006.
This document has been prepared under a mandate given to CEN/CENELEC/ETSI by the European
Commission and the European Free Trade Association, and supports essential requirements of EU Directive
96/48.
For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
1 Scope
This European Standard specifies the conditions for obtaining reproducible and comparable measurement
results of levels and spectra of noise emitted by all kinds of vehicles operating on rails or other types of fixed
track, hereinafter conventionally called “train”, except for track maintenance vehicles in operation.
This standard is applicable for:
 type testing;
 periodic monitoring testing.
The results may be used, for example:
 to characterise the noise emitted by these trains;
 to compare the noise emission of various vehicles on a particular track section;
 to collect basic source data for trains.
The test procedures specified in this European Standard are of engineering grade (grade 2, with a precision of
± 2 dB), that is the preferred one for noise declaration purposes, as defined in EN ISO 12001.
The procedures specified for accelerating and decelerating tests are of survey grade.
NOTE 1 Although this standard is for characterising noise emission for vehicles, the wheel-rail rolling noise often contains
a significant and sometimes dominant noise contribution from the track.
NOTE 2 This Standard aims to specify the conditions for obtaining reproducible and comparable measurement results
of noise emitted by railbound vehicles and the method described may also be used to monitor the noise emissions in
ordinary traffic. In the latter case it is not necessary that track and vehicle conditions fulfil the requirements described in
the standard. Therefore the results of such tests are only representative of a “particular” situation.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references the latest edition of the referenced
document (including any amendments) applies.
EN 60942, Electroacoustics — Sound calibrators (IEC 60942:2003)
EN 61260, Electroacoustics — Octave-band and fractional-octave-band filters (IEC 61260:1995)
EN 61672-1, Electroacoustics — Sound level meters — Part 1: Specifications (IEC 61672-1:2002)
EN 61672-2, Electroacoustics — Sound level meters — Part 2: Pattern evaluation tests (IEC 61672-2:2003)
EN ISO 266, Acoustics — Preferred frequencies (ISO 266:1997)
3 Terms and definitions
NOTE Definitions from 3.7 to 3.14 apply to values measured either as a frequency spectrum or in a particular
frequency band of centre f (expressed in Hz).

For the purposes of this European Standard, 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
[EN 13452-1]
3.2
type test for noise emission of railbound vehicles
type test
measurement performed to prove that, or to check if, a vehicle delivered by the manufacturer complies with
the noise specifications
3.3
monitoring test for noise emission of railbound vehicles
monitoring test
measurement performed to check if the noise of a vehicle has changed since initial delivery or after
modification
3.4
environmental assessment test
measurement performed for collecting data to be utilised in prediction method for environmental assessment
3.5
roughness
r
root mean square (RMS) value of the amplitude variation of the running surface of a rail in the direction of
motion (longitudinal level) measured over a rail length, expressed in µm
3.6
roughness level
L
r
level given by the equation:
L = 10 lg (r/r )dB        (1)
r 0
where
L  is the roughness level in dB;
r
r is the RMS roughness in µm;
r the reference roughness; r = 1 µm.
0 0
This definition applies to values measured either as a wavelength spectrum or in a particular wavelength band
centred at λ (expressed in m)
3.7
sound pressure
p(t)
root mean square (RMS) value of a fluctuating pressure superimposed on the static atmospheric pressure
measured over a certain time period, expressed in Pa
3.8
sound pressure level
L
p
level given by the equation:
L = 10 lg ( p(t)/p )dB        (2)
p 0
where
L is the sound pressure level in dB;
p
p(t) is the RMS sound pressure in Pa;
p  the reference sound pressure; p = 20 µPa
0 0
NOTE Adapted from ISO 1996-1:2003.
3.9
A-weighted sound pressure level
L
pA
sound pressure level obtained by using the frequency weighting A (see EN 61672 –1 and EN 61672-2), given
by the following equation:
L = 10 lg ( p (t)/p )dB       (3)
pA A 0
where
L is the A-weighted sound pressure level in dB;
pA
p (t)  is the RMS A-weighted sound pressure in Pa;
A
p  the reference sound pressure; p = 20 µPa.
0 0
3.10
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)
[EN 61672-1]
3.11
A-weighted equivalent continuous sound pressure level
L
pAeq,T
A-weighted sound pressure level given by the following equation:
T
 
1 p ()t
A
 
L = 10 lg dtdB
pAeq,T
∫ 2
 
T p
 0 
(4)
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 in Pa;
A
p the reference sound pressure; p = 20 µPa.
0 0
NOTE Adapted from ISO 1996-1:2003.
3.12
A-weighted equivalent continuous sound pressure level on the pass-by time
L
pAeq,Tp
A-weighted sound pressure level given by the following equation:
T
2 2
 
1 p ()t
A
 
L = 10 lg dtdB       (5)
pAeq,T
∫ 2
p
 
T − T p
2 1 T 0
 1 
where
L is the A-weighted equivalent continuous sound pressure level on the pass-by time
pAeq,Tp
in dB;
T = T - T is the measurement pass-by time interval beginning at T and ending at T in s, see
p 2 1 1 2
Figure 1;
p (t)  is the A-weighted instantaneous sound pressure in Pa;
A
p  the reference sound pressure; p = 20 µPa.
0 0
3.13
single event level
SEL
A-weighted sound level of a single event measured for a time interval T and normalised to T = 1 s. The time
interval T will be long enough to include all the acoustic energy related to the event, considering at least the
points at - 10 dB below the lower L during T. SEL is given by the following equation:
pA
T
 
1 p ()t
A
 
SEL = 10 lg dtdB       (6)
∫ 2
 
T p
0 0
 0 
where
SEL  is the A-weighted sound exposure level in dB;
T = 1 s is the reference time interval;
T  is the measurement time interval in s;
p (t)  is the A-weighted instantaneous sound pressure in Pa;
A
p  the reference sound pressure; p = 20 µPa.
0 0
single event level, SEL, is related to the A-weighted equivalent continuous sound pressure level, L , by the
pAeq,T
following equation:
SEL = L + 10 lg (T/T ) dB       (7)
pAeq,T 0
3.14
transit exposure level
TEL
A-weighted sound level of a train passage, measured for a time interval T and normalised to the pass-by time
T . The time interval T will be long enough to include all the acoustic energy related to the event, considering
p
at least the points at - 10 dB below the lower L during T . TEL is given by the following equation:
pA p
T
 
1 p ()t
A
 
TEL = 10 lg dtdB       (8)
∫
 
T p
p 0
 
where
TEL  is the A-weighted transit exposure level in dB;
T is the measurement time interval in s;
T is the pass-by time of the train in seconds which is the overall length of the train divided by the
p
train speed;
p (t) is the A-weighted instantaneous sound pressure in Pa;
A
p the reference sound pressure; p = 20 µPa.
0 0
transit exposure level, TEL, is related to single event level, SEL, and to the A-weighted equivalent continuous
sound pressure level, L by the following equations:
pAeq,T
TEL = SEL + 10 lg (T /T )        (9)
0 p
and
TEL = L +10 lg (T / T )        (10)
pAeq,T p
where T = 1s is the reference time interval
3.15
measurement time interval T, and train pass-by time
T
p
measurement time interval, T, is chosen, so the measurement starts when the A-weighted sound pressure
level is 10 dB lower than found when the front of the train is opposite the microphone position. The
measurement is stopped when the A-weighted sound pressure level is 10 dB lower than found when the rear
of the train is opposite the microphone positi
...