ISO 13473-5

Characterization of pavement texture by use of surface profiles — Part 5: Determination of megatexture

ISO 13473-5:2009 specifies procedures for determining the average depth or level of pavement surface megatexture by measuring the profile curve of a surface and calculating megatexture descriptors from this profile. The technique is designed to give meaningful and accurate measurement and description of pavement megatexture characteristics for various purposes. Since there is an overlap between megatexture and the surrounding ranges, the megatexture descriptors unavoidably have a certain correlation with corresponding measures in those ranges. ISO 13473-5:2009 specifies measurements and procedures which are in relevant parts compatible with those in ISO 13473-1, ISO 8608 and EN 13036-5.

Caractérisation de la texture d'un revêtement de chaussée à partir de relevés de profils de la surface — Partie 5: Détermination de la mégatexture

L'ISO 13473-5:2009 spécifie des modes opératoires permettant de déterminer la profondeur moyenne ou le niveau de la mégatexture d'une surface de revêtement en mesurant la courbe du profil de cette surface et en calculant les descripteurs de mégatexture de ce profil. La technique a été élaborée pour donner une mesure et une description significatives et précises des caractéristiques de la mégatexture du revêtement pour différentes utilisations. Du fait du recouvrement entre la mégatexture et les domaines voisins, les descripteurs de la mégatexture présentent inévitablement une certaine corrélation avec les mesures correspondantes de ces autres domaines. L'ISO 13473-5:2009 spécifie des mesurages et des modes opératoires qui sont dans leurs différents aspects aussi compatibles que possible avec ceux de l'ISO 13473-1, de l'ISO 8608 et de l'EN 13036-5.

General Information

• Status: Not Published
• ICS: 17.140.30 - Noise emitted by means of transport
• ICS: 93.080.20 - Road construction materials
• Technical Committee: ISO/TC 43/SC 1 - Noise
• Drafting Committee: ISO/TC 43/SC 1 - Noise
• Current Stage: 6000 - International Standard under publication
• Due Date: 13-Feb-2025
• Completion Date: 13-Feb-2025

Relations

• Revises: ISO 13473-5:2009 - Characterization of pavement texture by use of surface profiles — Part 5: Determination of megatexture
• Effective Date: 06-Jun-2022

Standards Content (Sample)

FINAL DRAFT
International
Standard
ISO/FDIS 13473-5
ISO/TC 43/SC 1
Characterization of pavement
Secretariat: DIN
texture by use of surface profiles —
Voting begins on:
2024-12-18
Part 5:
Determination of megatexture
Voting terminates on:
2025-02-12
Caractérisation de la texture d'un revêtement de chaussée à
partir de relevés de profils de la surface —
Partie 5: Détermination de la mégatexture
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 SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
ISO/FDIS 13473-5:2024(en) © ISO 2024

FINAL DRAFT
ISO/FDIS 13473-5:2024(en)
International
Standard
ISO/FDIS 13473-5
ISO/TC 43/SC 1
Characterization of pavement
Secretariat: DIN
texture by use of surface profiles —
Voting begins on:
Part 5:
Determination of megatexture
Voting terminates on:
Caractérisation de la texture d'un revêtement de chaussée à
partir de relevés de profils de la surface —
Partie 5: Détermination de la mégatexture
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 SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/FDIS 13473-5:2024(en) © ISO 2024

ii
ISO/FDIS 13473-5:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General terms .1
3.2 Ranges of texture .3
3.3 Megatexture measurement method .5
4 Measurement instruments . 6
4.1 Instruments in general .6
4.1.1 General .6
4.1.2 Performance check .7
4.1.3 Indication of invalid readings (drop-outs) .7
5 Test surface considerations . 7
5.1 General .7
5.2 Test lengths.7
6 Measurement method . 8
6.1 General .8
6.2 Sensitivity to vertical motion of the vehicle .8
6.3 Calibration .9
6.4 Measuring speed .9
6.5 Measurement of the texture profile .9
7 Data processing . 10
7.1 General .10
7.2 Preprocessing: drop-out rate and validity of measurements.10
7.3 Spike identification and reshaping the profile .11
7.4 Resampling to a certain spatial resolution .11
7.5 Filtering of the profile .11
7.6 Calculation of RMS . 12
Me
7.7 Averaging . 12
7.8 Longitudinal standard deviation . 12
7.9 Singularities . 12
8 Measurement uncertainty .13
9 Safety considerations during measurements . 14
10 Test report .15
Annex A (normative) Spike removal procedure . 17
Annex B (informative) Example of test report and graphical presentations .20
Annex C (informative) Measurement uncertainty.25
Annex D (informative) Megatexture digital filters .28
Annex E (informative) Megatexture reference program code .30
Annex F (informative) Procedure for sampling of measurement sections if the whole area of
interest cannot be measured .31
Annex G (normative) Profile conditioning before filtering .34
Annex H (informative) Guidelines for choosing a suitable calculation length .37
Bibliography .39

iii
ISO/FDIS 13473-5:2024(en)
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 document should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 1, Noise.
This second edition cancels and replaces the first edition (ISO 13473-5:2009), which has been technically
revised.
The main changes are as follows:
— default measure RMS in mm instead of L in dB;
Me Me
— use the same pre-processing procedures as in ISO 13473-1 (drop-out and spikes);
— use digital filters to calculate megatexture, earlier done by spectral analysis;
— improvements of the uncertainty description of megatexture calculations;
— informative annex with reference program and reference calculations, available at the www.erpug.org
homepage.
A list of all parts in the ISO 13473 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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Characterization of pavement texture by use of surface profiles — —
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Caractérisation de la texture d'un revêtement de chaussée à partir de relevés de profils de la surface —
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ISO/DIS FDIS 13473--5:2024(Een) Formatted: Font: 11 pt, Bold
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© ISO 2024
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All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, spacing: single
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either
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ISO at the address below or ISO’s member body in the country of the requester.
withdrawn standard
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ISO copyright office
CP 401 • Ch. de Blandonnet 8
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CH-1214 Vernier, Geneva
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Phone: + 41 22 749 01 11
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EmailE-mail: [e-mail]
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Website: www.iso.orgwww.iso.org
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ISO/FDIS 13473-5:2024(en)
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Contents
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Foreword . vi
Introduction . vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 General terms . 1
3.2 Ranges of texture . 3
3.3 Megatexture measurement method . 5
4 Measurement instruments . 6
4.1 Instruments in general . 6
5 Test surface considerations . 7
5.1 General. 7
5.2 Test lengths . 7
6 Measurement method . 8
6.1 General. 8
6.2 Sensitivity to vertical motion of the vehicle . 9
6.3 Calibration . 9
6.4 Measuring speed . 9
6.5 Measurement of the texture profile . 9
7 Data processing . 10
7.1 General. 10
7.2 Preprocessing: drop-out rate and validity of measurements . 10
7.3 Spike identification and reshaping the profile . 11
7.4 Resampling to a certain spatial resolution . 11
7.5 Filtering of the profile . 12
7.6 Calculation of RMS . 12
Me
7.7 Averaging . 12
7.8 Longitudinal standard deviation . 12
7.9 Singularities . 13
8 Measurement uncertainty . 13
9 Safety considerations during measurements . 15
10 Test report . 15
Annex A (normative) Spike removal procedure . 18
Annex B (informative) Example of test report and graphical presentations . 21
Annex C (informative) Measurement uncertainty . 25
Annex D (informative) Megatexture digital filters . 28
Annex E (informative) Megatexture reference program code . 30
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Annex F (informative) Procedure for sampling of measurement sections if the whole area of
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interest cannot be measured . 31
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Annex G (normative) Profile conditioning before filtering . 35
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Annex H (informative) Guidelines for choosing a suitable calculation length . 38
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Bibliography . 40
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ISO/DIS FDIS 13473--5:2024(Een) Formatted: Font: 11 pt, Bold
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Foreword . vi
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Introduction . viii
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1 Scope . 1
spacing: single
2 Normative references . 1
3 Terms and definitions . 1
3.1 General terms . 1
3.2 Ranges of texture . 3
3.3 Megatexture measurement method . 5
4 Measurement instruments . 6
4.1 Instruments in general . 6
4.1.1 Performance check . 6
4.1.2 Indication of invalid readings (drop-outs) . 6
5 Test surface considerations . 6
5.1 General. 6
5.2 Test lengths . 7
6 Measurement method . 8
6.1 General. 8
6.2 Sensitivity to vertical motion of the vehicle . 8
6.3 Calibration . 8
6.4 Measuring speed . 8
6.5 Measurement of the texture profile . 8
7 Data processing . 9
7.1 General. 9
7.2 Preprocessing: drop-out rate and validity of measurements . 9
7.3 Resampling to a certain spatial resolution . 10
7.4 Spike identification and reshaping the profile . 10
7.5 Filtering of the profile . 10
7.6 Calculation of RMS .
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