prEN 13036-8

Road and airfield surface characteristics - Test methods - Part 8: Determination of transverse unevenness and crossfall indices

This document specifies the mathematical processing of digitized transverse profile measurements to produce indices in the transverse direction for unevenness, other defects and crossfall. The document describes the calculation methods of the indices such as irregularities (1) rut depth, (2) ridge height, (3) water depth and area, crossfall and how to evaluate and report the indices. It also describes possibilities to do further analysis to examine defects and problems on the road that can be seen in the transverse profile. The latter is described in Annex E, Other transverse indices (edge deformation/edge slump, crossfall line, rut area and width and the distance between the rut bottoms).
The quantified evenness indices derived from this document are useful support for quality control of newly laid pavement surfaces, especially with respect to the evidence of irregularities due to improper laying and/or compacting actions. It is also useful for evaluating the condition of pavements in service as part of routine condition monitoring programs, and finally as indices to be used for maintenance planning of resurfacing activities on pavements in use. The derived indices are portable in the sense that they can be obtained from transverse profiles measured with any suitable instrument.
All indices described in this document are related to the actual lane and direction of the road at which the measurement is done.

Oberflächeneigenschaften von Straßen und Flugplätzen - Prüfverfahren - Teil 8: Bestimmung von Querunebenheit und Querneigung

Dieses Dokument legt die mathematische Verarbeitung digitalisierter Querprofilmessungen zur Berechnung von Indizes für Querunebenheit, sonstige Mängel in Querrichtung und Querneigung fest. Dieses Dokument beschreibt die Berechnungsverfahren für die Indizes wie z. B. die Unregelmäßigkeiten (1) Spurrinnentiefe, (2) Grathöhe, (3) Wassertiefe und  fläche, Querneigung, und wie die Indizes auszuwerten und aufzuzeichnen sind. Es beschreibt auch die Möglichkeiten zur Durchführung weiterer Analysen zur Untersuchung von Mängeln und Problemen der Straßenoberfläche, die im Querprofil zu erkennen sind. Letztere werden in Anhang E „Sonstige Querindizes“ (Kantenverformung/Kantenabsenkung, Querneigungsverlauf, Spurrinnenfläche und  breite und Abstand zwischen Spurrinnensohlen) beschrieben.
Die aus diesem Dokument abgeleiteten quantifizierten Ebenheitsindizes sind eine nützliche Unterstützung bei der Qualitätskontrolle der Oberflächen von neu verlegten Fahrbahnbelägen, insbesondere hinsichtlich des Nachweises von Unregelmäßigkeiten infolge unsachgemäßer Verlege- und/oder Verdichtungsarbeiten; Sie sind auch nützlich für die Bewertung des Zustands von befahrenen Fahrbahnbelägen als Teil von regelmäßig durchgeführten Programmen zur Zustandsüberwachung und schließlich als Indizes zur Verwendung bei der Instandhaltungsplanung für Oberflächenerneuerungsarbeiten von befahrenen Fahrbahnbelägen. Die abgeleiteten Indizes sind übertragbar in dem Sinne, dass sie aus Querprofilen erhalten werden können, die mit einem beliebigen geeigneten Gerät gemessen wurden.
Alle in diesem Dokument beschriebenen Indizes beziehen sich auf den konkreten Fahrstreifen und die Fahrtrichtung, für die die Messung tatsächlich durchgeführt wurde.

Caractéristiques de surface des routes et aérodromes - Méthodes d'essais - Partie 8 : Détermination des indices d'uni transversal et de dévers

Le présent document spécifie le traitement mathématique des mesurages numérisés de profils transversaux afin de produire des indices dans la direction transversale pour les défauts d'uni, les autres défauts et les dévers. Le document décrit les méthodes de calcul des indices tels que les défauts (1) la profondeur d'ornière, (2) la hauteur de bourrelet, (3) la hauteur et la surface de l'eau, le dévers, ainsi que la manière d’évaluer et de communiquer les indices. Il décrit également comment réaliser une analyse plus approfondie pour examiner les défauts et les problèmes de la route qui peuvent être constatés sur le profil transversal. Ce dernier est décrit à l'Annexe E, « Autres indices transversaux » (déformation/affaissement de la rive, ligne de dévers, surface et largeur d'ornière et distance entre les fonds d'ornière).
Les indices d'uni quantifiés obtenus à partir du présent document sont utiles pour assurer le contrôle de la qualité des chaussées nouvellement mises en œuvre, notamment en ce qui concerne la détection de défauts dus à une mise en œuvre et/ou à un compactage inapproprié. Ils sont également utiles pour évaluer l'état des chaussées en service dans le cadre des programmes de surveillance de routine et, enfin, en tant qu'indices à utiliser pour la planification de l'entretien des travaux de réfection des chaussées en service. Les indices obtenus sont portables dans la mesure où ils peuvent être obtenus à partir de profils transversaux mesurés à l'aide de tout instrument approprié.
Tous les indices décrits dans le présent document sont liés à la voie et à la direction effectives de la route sur laquelle le mesurage est effectué.

Značilnosti cestnih in letaliških površin - Preskusne metode - 8. del: Določanje indeksov prečne neravnosti in prečnega nagiba

General Information

• Status: Not Published
• Publication Date: 15-Jul-2025
• ICS: 93.080.10 - Road construction
• ICS: 93.120 - Construction of airports
• Technical Committee: CEN/TC 227 - Road materials
• Drafting Committee: CEN/TC 227/WG 5 - Surface characteristics
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 29-Aug-2024
• Due Date: 21-Aug-2023
• Completion Date: 29-Aug-2024
• Ref Project: oSIST prEN 13036-8:2024 - Road and airfield surface characteristics - Test methods - Part 8: Determination of transverse unevenness and crossfall indices

Relations

• Revises: EN 13036-8:2008 - Road and airfield surface characteristics - Test methods - Part 8: Determination of transverse unevenness indices
• Effective Date: 13-Jul-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2024
Značilnosti cestnih in letaliških površin - Preskusne metode - 8. del: Določanje
indeksov prečne neravnosti in prečnega nagiba
Road and airfield surface characteristics - Test methods - Part 8: Determination of
transverse unevenness and crossfall indices
Oberflächeneigenschaften von Straßen und Flugplätzen - Prüfverfahren - Teil 8:
Bestimmung von Querunebenheit und Querneigung
Caractéristiques de surface des routes et aérodromes - Méthodes d'essais - Partie 8 :
Détermination des indices d'uni transversal et de dévers
Ta slovenski standard je istoveten z: prEN 13036-8
ICS:
17.040.20 Lastnosti površin Properties of surfaces
93.080.10 Gradnja cest Road construction
93.120 Gradnja letališč Construction of airports
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2024
ICS 93.080.10; 93.120 Will supersede EN 13036-8:2008
English Version
Road and airfield surface characteristics - Test methods -
Part 8: Determination of transverse unevenness and
crossfall indices
Oberflächeneigenschaften von Straßen und
Flugplätzen - Prüfverfahren - Teil 8: Bestimmung der
Breitenunebenheit und der Querneigung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 227.
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-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.
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

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13036-8:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
Introduction . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Symbols and abbreviated terms . 10
5 Pre-processing of the transverse profile . 11
5.1 General. 11
5.2 Transverse profile measured with a traffic speed profilometer . 12
6 Computation of indices . 15
6.1 General. 15
6.2 Rut depth indices . 15
6.2.1 General. 15
6.2.2 The Sliding Wire Rut Depth method (R ) . 16
SW
6.2.3 The Total Transverse Unevenness method (R ) . 17
TTU
6.2.4 The Left and Right Rut Depth method (R and R ) . 18
L R
6.3 Other transverse indices . 19
6.3.1 General. 19
6.3.2 Ridge Height (R ) . 19
H
6.3.3 Water in ruts . 20
6.3.4 Miscellaneous transverse indices . 22
6.4 Crossfall (CF ) . 22
R
7 Measurement devices and their application . 24
7.1 Measurement devices . 24
7.2 Lateral positioning . 25
8 Accuracy . 25
8.1 General. 25
8.2 Resolution of presented indices . 25
8.3 Precision . 25
8.4 Bias . 25
9 Safety . 26
10 Report for project level measurements . 26
Annex A (normative) Measurement of indices of transverse unevenness and irregularities with a
straightedge . 28
A.1 Measuring using the straightedge. 28
A.1.1 General. 28
A.1.2 Sampling frequency, covered measurement/analysis width . 28
A.1.3 Method of measurement . 28
A.2 Reporting of results . 30
A.2.1 Test report . 30
Annex B (informative) The use of transverse indices . 31
Annex C (informative) Implementation guide . 32
Annex D (informative) Evaluating and using the transverse indices. 33
Annex E (informative) Other transverse indices . 34
E.1 General . 34
E.2 Crossfall line (CF ) . 34
L
E.3 Edge slump (ES) . 34
E.4 Distance between rut bottoms (DRB) . 36
E.5 Rut width, left and right (RW , RW ) . 37
L R
E.6 Rut area, left and right (RA , RA ) . 38
L R
Bibliography . 40

European foreword
This document (prEN 13036-8:2024) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by BSI- British Standards Institution.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 13036-8:2008.
EN 13036-8:2008:
— routines for pre-processing the transverse profile before calculating the indices;
— the standard includes procedures to calculate transversal unevenness for profilometers with a
densely collected transverse profile;
— the standard contains more possibilities to characterize the transversal unevenness and crossfall.
The calculation routines for all indices have been updated and better described:
— two additional principles to describe the rut depth are added, sliding wire rut depth and total
transverse unevenness;
— one additional principle to describe crossfall is added, crossfall line;
— the definition of Edge slump is updated;
— distance between rut buttons is added;
— rut width is added;
— rut area is added;
— water area is added;
— step height has been removed;
— a link to an implementation guide to calculate the indices has been added.
EN 13036 consists of the following parts, under the general title Road and airfield surface characteristics
— Test methods:
— Part 1: Road and airfield surface characteristics — Test methods — Part 1: Measurement of
pavement surface macrotexture depth using a volumetric patch technique
— Part 2: Road and airfield surface characteristics — Test methods — Part 2: Assessment of the skid
resistance of a road pavement surface by the use of dynamic measuring systems
— Part 3: Road and airfield surface characteristics — Test methods — Part 3: Measurement of
pavement surface horizontal drainability
— Part 4: Road and airfield surface characteristics — Test methods — Part 4: Method for measurement
of slip/skid resistance of a surface: the pendulum test
— Part 5: Road and airfield surface characteristics — Test methods — Part 5: Determination of
longitudinal unevenness indices
— Part 6: Road and airfield surface characteristics — Test methods — Part 6: Measurement of
transverse and longitudinal profiles in the evenness and megatexture wavelength ranges
— Part 7: Road and airfield surface characteristics — Test methods — Part 7: Irregularity measurement
of pavement courses: the straightedge test
— Part 8: Road and airfield surface characteristics — Test methods — Part 8: Determination of
transverse unevenness and crossfall indices

Introduction
Road surface unevenness and crossfall affects safety, ride comfort, environmental impact, and the
technical performance of roads. When a road is in use the surface will be deformed and worn due to the
traffic load. Contributing causes of surface degradation are the time in use, the traffic load,
weather/climate conditions, geological conditions, used materials as well as the strength of the road
construction. To simplify quan
...