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CEN/TS 15901-4:2009

Road and airfield surface characteristics - Part 4: Procedure for determining the skid resistance of pavements using a device with longitudinal controlled slip (LFCT): Tatra Runway Tester (TRT)

Edition date: 2012-06-26
In Force
Available languages: German, English, French
Summary: This Technical Specification describes a method for determining the skid resistance of pavements by measurement of the longitudinal friction coefficient LFCT. The method provides a measure of the skid resistance properties of a bound surface by measurement of the longitudinal friction coefficient using a continuous reading braked test wheel with a slip ratio of 25 % (standard) or a variable slip between 0 % to 100 % (for research measurements). The test tyre is dragged over a pre-wetted pavement under controlled load and constant speed conditions. The measured values can be affected by the test speed. This Technical Specification covers the operation of the Tatra Runway Tester (TRT). The acronym Tatra Runway Tester (TRT) applies to a device, developed by Tatra Kopřivnice in the Czech Republic to perform routine, continuous measurements of friction for long road sections or punctual measurements at different speeds to characterise a particular section. It is not manufactured under license. A machine conforming to the general characteristics of the TRT and the specific provisions of this Technical Specification may also be used for the tests. The skid resistance of a pavement is determined by friction measurements and measurements of pavement texture. Where measurement of pavement texture is required, the standard for this measurement and the device is described in EN ISO 13473-1.

Diese Technische Spezifikation beschreibt ein Verfahren für die Bestimmung der Griffigkeit von Fahrbahndecken durch Messung des Reibungskoeffizienten in Längsrichtung LFCT. Dieses Verfahren liefert ein Maß für die Griffigkeitseigenschaften einer gebundenen Oberfläche durch Messung des Reibungskoeffizienten in Längsrichtung mit Hilfe eines kontinuierlich messenden Messfahrzeugs mit gebremstem Messrad mit einem Schlupfverhältnis von 25 % (Normwert) oder einem variablen Schlupf zwischen 0 % und 100 % (für Forschungsmessungen). Der Messreifen wird unter geregelten Lastbedingungen und mit konstanter Geschwindigkeit über eine zuvor angenässte Fahrbahndecke gezogen. Die Messwerte werden von der Messgeschwindigkeit beeinflusst. Diese Technische Spezifikation behandelt den Betrieb des Tatra-Fahrbahnmessgeräts (en: Tatra Runway Tester, TRT). Die Bezeichnung Tatra-Fahrbahnmessgerät bzw. die Abkürzung TRT gilt für das in der Tschechischen Republik von Tatra Kopřivnice entwickelte Messgerät zur Durchführung von routinemäßigen kontinuierlichen Reibungsmessungen auf langen Straßenabschnitten oder zur Durchführung von punktuellen Messungen bei unterschiedlichen Geschwindigkeiten zur Charakterisierung eines bestimmten Abschnitts. Es wird nicht in Lizenz hergestellt. Für diese Prüfungen darf auch ein Messgerät verwendet werden, dass den allgemeinen Merkmalen des Tatra-Fahrbahnmessgeräts und den speziellen Vorgaben dieser Technischen Spezifikation entspricht. Die Griffigkeit einer Fahrbahn wird mit Hilfe von Reibungsmessungen und Messungen der Fahrbahntextur ermittelt. Das Normverfahren für die Messung der Fahrbahntextur, falls diese erforderlich ist, und das dafür zu verwendende Messgerät sind in EN ISO 13473-1 beschrieben.

La présente Spécification technique décrit une méthode permettant de déterminer l’adhérence des chaussées revêtues par mesure du coefficient de frottement longitudinal CFLT. La méthode permet de déterminer les propriétés d’adhérence d’une surface de roulement en mesurant le coefficient de frottement longitudinal à l’aide d’une roue d’essai freinée de mesure en continu offrant un taux de glissement de 25 % (norme) ou un taux de glissement variable compris entre 0 % et 100 % (mesures de recherche). Le pneumatique d’essai est traîné sur une chaussée préalablement mouillée, dans des conditions contrôlées de charge et de vitesse constante. Les valeurs mesurées peuvent être affectées par la vitesse d’essai. La présente spécification technique porte sur le fonctionnement du Tatra Runway Tester (TRT). L’acronyme TRT (Tatra Runway Tester) s’applique à un appareil développé par Tatra Kopřivnice en République Tchèque, permettant de procéder à des mesures de routine et en continu du frottement sur de longues sections routières, ou à des mesures ponctuelles à différentes vitesses afin de caractériser une section particulière. Cet appareil n’est pas fabriqué sous licence. Pour les essais, il est possible d’utiliser une machine conforme aux caractéristiques générales du TRT et aux dispositions particulières de la présente Spécification technique. L’adhérence d’une chaussée est déterminée par mesures du frottement et de la texture de la chaussée. Si une mesure de la texture de la chaussée est requise, la méthode et le dispositif sont présentés dans l’EN ISO 13473-1.
ICS: 93.080.20-Road construction materials
CTN: CEN/TC 227 - 6208

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