SIST EN 13036-8:2025
(Main)Road and airfield surface characteristics - Test methods - Part 8: Determination of transverse unevenness and crossfall indices
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, (4) 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.
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. Unregelmäßigkeiten, (1) Spurrinnentiefe, (2) Grathöhe, (3) Wassertiefe und -fläche, (4) 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. Letzteres ist in Anhang E beschrieben.
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
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nadomešča:
SIST EN 13036-8:2009
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: EN 13036-8:2025
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.
EN 13036-8
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2025
EUROPÄISCHE NORM
ICS 93.080.10 Supersedes EN 13036-8:2008
English Version
Road and airfield surface characteristics - Test methods -
Part 8: Determination of transverse unevenness and
crossfall indices
Caractéristiques de surface des routes et aérodromes - Oberflächeneigenschaften von Straßen und
Méthodes d'essais - Partie 8 : Détermination des Flugplätzen - Prüfverfahren - Teil 8: Bestimmung von
indices d'uni transversal et de dévers Indizes für die Querunebenheit und die Querneigung
This European Standard was approved by CEN on 9 June 2025.
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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13036-8:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviated terms . 9
5 Pre-processing of the transverse profile . 10
5.1 General. 10
5.2 Transverse profile measured with a traffic speed profilometer . 11
6 Computation of indices . 14
6.1 General. 14
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 ) . 16
TTU
6.2.4 The Left and Right Rut Depth method (R and R ) . 17
L R
6.3 Other transverse indices . 18
6.3.1 General. 18
6.3.2 Ridge Height (R ) . 19
H
6.3.3 Indices for water in ruts . 19
6.3.4 Miscellaneous transverse indices . 21
6.4 Crossfall index (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 . 26
9 Safety . 26
10 Report for project level measurements . 27
Annex A (informative) Measurement of indices of transverse unevenness and irregularities with
a straightedge . 28
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
Bibliography . 40
European foreword
This document (EN 13036-8:2025) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by BSI- British Standards Institution.
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 January 2026, and conflicting national standards shall
be withdrawn at the latest by January 2026.
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 will supersede EN 13036-8:2008.
— the title of the document has changed from Determination of transverse unevenness to Determination
of transverse unevenness and crossfall indices;
— 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: Measurement of pavement surface macrotexture depth using a volumetric patch technique
— Part 2: Assessment of the skid resistance of a road pavement surface by the use of dynamic measuring
systems
— Part 3: Measurement of pavement surface horizontal drainability
— Part 4: Method for measurement of slip/skid resistance of a surface: the pendulum test
— Part 5: Determination of longitudinal unevenness indices
— Part 6: Measurement of transverse and longitudinal profiles in the evenness and megatexture
wavelength ranges
— Part 7: Irregularity measurement of pavement courses: the straightedge test
— Part 8: Determination of transverse unevenness and crossfall indices
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 organisations 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.
Part 2 is available as a CEN/TS.
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 quantifying the degree of deformation and wear, indicators have been
developed that are based on the transverse (perpendicular to the direction of traffic flow) and
longitudinal (parallel to the direction of traffic flow) profiles. Rut depth is such an indicator of the
technical performance of the surface course that arises from permanent deformation from traffic loads
and wear from the tyre and pavement interaction. A road with a moderate level of rut depth in
combination with a sufficient crossfall will lower or even eliminate the risk of aquaplaning in wet
conditions and as far as rut depth is concerned, a low or moderate level will ensure sufficient lateral
stability of vehicles with trailers (especially by a lane change). More than two wheel paths can occur due
to wear from heavy traffic and cars since the transverse location of the wheels differs. This is most
prominent in countries where studded tyres are used. The transverse unevenness encompasses aspects,
such as: irregularities in the transverse profile including the longitudinal ruts and deformations in the
wheel paths caused by the traffic. Measurement devices measuring the transverse profiles can be divided
into two groups:
— slow or stationary equipment, such as the straightedge for irregularities and longitudinal ruts;
— equipment used at traffic speed, such as profilometers, which depending on the characteristics o
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