SIST-TS CEN/TS 15901-5:2010

SLOVENSKI STANDARD
SIST-TS CEN/TS 15901-5:2010
01-februar-2010
=QDþLOQRVWLFHVWQLKLQY]OHWQLKSRYUãLQGHO3RVWRSHNGRORþDQMDWRUQH
VSRVREQRVWLYR]QHSRYUãLQH]RSUHPR]DY]GROåQHPHULWYHVNRQWUROLUDQLP
GUVHQMHP/)&5'.52$55RDG$QDO\VHUDQG5HFRUGHURI1RUVHPHWHU
Road and airfield surface characteristics - Part 5: Procedure for determining the skid
resistance of a pavement surface using a device with longitudinal controlled slip
(LFCRDK): ROAR (Road Analyser and Recorder of Norsemeter)
Verfahren zur Bestimmung der Griffigkeit von Fahrbahndecken durch Verwendung eines
Geräts mit geregeltem Schlupf in Längsrichtung (LFCRDK): das in Dänemark
verwendete ROAR-Gerät (Road Analyser und Recorder of Norsemeter)
Caractéristiques de surface des routes et aéroports - Partie 5 : Mode opératoire de
détermination de l'adhérence d'un revêtement de chaussée à l'aide d'un dispositif à
frottement longitudinal contrôlé (CFLRDK) : le ROAR (Analyseur de Route et
Enregistreur du Norsemeter)
Ta slovenski standard je istoveten z: CEN/TS 15901-5:2009
ICS:
17.040.20 Lastnosti površin Properties of surfaces
93.080.10 Gradnja cest Road construction
93.120 *UDGQMDOHWDOLãþ Construction of airports
SIST-TS CEN/TS 15901-5:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST-TS CEN/TS 15901-5:2010

---------------------- Page: 2 ----------------------

SIST-TS CEN/TS 15901-5:2010


TECHNICAL SPECIFICATION
CEN/TS 15901-5

SPÉCIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION
November 2009
ICS 93.080.20
English Version
Road and airfield surface characteristics - Part 5: Procedure for
determining the skid resistance of a pavement surface using a
device with longitudinal controlled slip (LFCRDK): ROAR (Road
Analyser and Recorder of Norsemeter)
Caractéristiques de surface des routes et aéroports - Partie Oberflächeneigenschaften von Straßen und Flugplätzen -
5 : Mode opératoire de détermination de l'adhérence d'un
Teil 5: Verfahren zur Bestimmung der Griffigkeit von
revêtement de chaussée à l'aide d'un dispositif à frottement Fahrbahndecken durch Verwendung eines Geräts mit
longitudinal contrôlé (CFLRDK) : le ROAR (Analyseur de geregeltem Schlupf in Längsrichtung (LFCRDK): das in
Route et Enregistreur du Norsemeter) Dänemark verwendete ROAR-Gerät (Road Analyser and
Recorder of Norsemeter)
This Technical Specification (CEN/TS) was approved by CEN on 27 June 2009 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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.






EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2009 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 15901-5:2009: E
worldwide for CEN national Members.

---------------------- Page: 3 ----------------------

SIST-TS CEN/TS 15901-5:2010
CEN/TS 15901-5:2009 (E)
Contents Page
Foreword .3
1 Scope .4
2 Normative references .4
3 Recommended uses .4
4 Terms and definitions .5
5 Safety .7
6 Essential characteristics .7
6.1 Principle of measurements .7
6.2 Description of ROAR .7
7 Key characteristics .8
7.1 General .8
7.2 Test speed .8
7.3 Braking system .8
7.4 Static wheel load .8
7.5 Test wheel arrangement .8
7.6 Test tyre .8
7.7 Minimum sampling interval .9
7.8 Pavement wetting system, water film thickness .9
7.9 General requirements for measuring system .9
7.10 Parameters recorded .9
8 Test procedure . 10
8.1 Standard test conditions . 10
8.2 Prior to testing . 10
8.3 Testing . 10
9 Data recording . 10
10 Calibration . 11
11 Accuracy . 11
12 Test report . 11
Bibliography . 13

2

---------------------- Page: 4 ----------------------

SIST-TS CEN/TS 15901-5:2010
CEN/TS 15901-5:2009 (E)
Foreword
This document (CEN/TS 15901-5:2009) has been prepared by Technical Committee CEN/TC 227 “Road
materials”, the secretariat of which is held by DIN.
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.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, 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 the United Kingdom.
3

---------------------- Page: 5 ----------------------

SIST-TS CEN/TS 15901-5:2010
CEN/TS 15901-5:2009 (E)
1 Scope
This Technical Specification describes a method for determining the skid resistance of a surface by
measurement of the longitudinal friction coefficient LFCN.
The method provides a measure of the wet skid resistance properties of a bound surface by measurement of
the longitudinal friction coefficient using a continuous reading braked wheel fixed-slip device.
The test tyre is dragged over a pre-wetted pavement under controlled speed conditions while the test tyre is
parallel to the direction of motion and perpendicular to the pavement.
This Technical Specification covers the operation of the Road Analyser and Recorder of Norsemeter (ROAR).
The fixed slip ratio is 20 %.
A machine conforming to the general characteristics of the ROAR and the specific provisions of this Technical
Specification may also be used for the tests.
In addition to friction measurements, to determine the macrotexture of the pavement surface a laser system is
used. This system is placed in front of the towing vehicle in order to measure the macrotexture (mean profile
depth – MPD) on dry pavements and on the same path as the skid resistance measurement is done. The
standard for this measurement and the device is described in EN ISO 13473-1.
The skid resistance of a pavement is determined by friction measurements and measurements of pavement
texture. The skid resistance may be reported either as friction measurement or as a combination of friction
and texture measurements.
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 ISO 13473-1, Characterization of pavement texture by use of surface profiles – Part 1: Determination of
Mean Profile Depth (ISO 13473-1:1997)
ISO 13473-2, Characterization of pavement texture by use of surface profiles – Part 2: Terminology and basic
requirements related to pavement texture profile analysis
3 Recommended uses
The ROAR is used in the following fields of application:
 network monitoring (Pavement Management);
 approval of new surfacing;
 measurements for project-level compliance;
 investigation of surface skid resistance;
 comparative measurements among different devices;
 research measurements.
4

---------------------- Page: 6 ----------------------

SIST-TS CEN/TS 15901-5:2010
CEN/TS 15901-5:2009 (E)
4 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
4.1
friction
resistance to relative motion between two bodies in contact, the frictional force being the force, acting
tangentially in the contact area, which is measured by a friction-measuring device
4.2
braking force coefficient
ratio between the longitudinal frictional force and the load on the test tyre, the test tyre mass and the rim mass,
which is without dimension
4.3
skid resistance
characterisation of the friction of a road surface when measured in accordance with a standardised method
4.4
wet road skid resistance
property of a trafficked surface that limits relative movement between the surface and the part of a vehicle tyre
in contact with the surface, when lubricated with a film of water
NOTE Factors that contribute to skid resistance are tyre pressure, contact area, tread pattern and rubber
composition: the alignment, texture, surface contamination and characteristics of the road surface, vehicle speed and
weather conditions.
The skid resistance of a surface in Europe varies seasonally. Generally, wet skid resistance is higher in winter as a result
of the effects of wet detritus and the effects of frost and wear by tyres on microtexture and macrotexture. Wet skid
resistance is lower in summer as a result of dry polishing by tyres in the presence of fine detritus.
The change in skid resistance of a surface in service is affected by the volume of traffic and the composition of the traffic,
i.e. cars, buses, commercial vehicles of different sizes, as the tyres of these vehicles polish and/or wear the surfacing
material in different ways. The geometry of the road will affect the change in skid resistance. Generally, tyres polish less
on straight roads than on bends.
Where the surface contains aggregate with a coating of binders, e.g. bitumen, resin or Portland cement, the skid
resistance can change as the coating is worn away by tyres.
4.5
friction coefficient ROAR
µ
ratio between the horizontal force in the direction of the motion that can be activated between the test wheel
and the wet pavement and the vertical wheel load accomplished under controlled slipping conditions
NOTE The controlled slipping condition is achieved
...