Articles in Taxonomy

Skid resistance measurements with the SRT – Information leaflet A57

BRRC has a static device for measuring skid resistance in places where conventional skid resistance measurements with measuring vehicles are impossible, such as footways, driveways, industrial floors, road markings, shopping streets, entrance halls, etc. It is the Skid Resistance Tester of the British Transport Research Laboratory (TRL), shortly referred to as SRT by professionals.
BRRC’s information leaflet A57 decribes the device and its applications.


Road Equipment Commission (REC-E226)

The publication of the European Construction Product Directive in 1989 marked the beginning of the gradual introduction of European standardization. European standards are to replace existing Belgian standards, or at least require them to be thoroughly revised. By affixing a CE mark, the manufacturer declares that the performance characteristics of his product have been determined by the appropriate European standard and that measures have been taken for the product to continue meeting these declared characteristics.

As the actors in the road equipment branch were concerned about the impact of this European standardization, a steering committee on European standardization in the road equipment branch was formed at BRRC in the spring of 2003. The first task of this committee was to increase the awareness of, and disseminate information to, the various actors in the field: road authorities, manufacturers, specialized institutions, etc. For that purpose, a series of thematic sessions on the standardization and CE marking of road equipment was held in March 2004.


Passively safe support structures for road equipment

A little less than 40 % of all road fatalities result from collisions with roadside obstacles. Collisions with such isolated obstacles are about twice as lethal as on average and cause 1.6 times more serious injuries as on average. Natural obstacles (such as trees) are by far the largest group. Additionally, considerable numbers of lives are lost in collisions with lighting columns and other road equipment.
Collisions with lighting columns and other robust support structures account for slightly less than 10 % of the total number of road deaths. Yet for lighting columns and for sign or signal poles there are alternatives that are not inferior in functionality to conventional rigid structures. This makes a major difference for the occupants of a passenger car running into such a support structure.


BRRC as a sectoral operator for CEN/TCs 226 Road equipment, 227 Road materials and 396 Earthworks

Le 20 mars 2007, le conseil d’administration du Bureau de Normalisation (NBN) a reconnu notre centre de recherche en tant qu’opérateur sectoriel pour les comités techniques européens CEN/TC226 Equipements de la route et CEN/TC227 Matériaux routiers.

Fin 2009, le CRR, conjointement avec le CSTC, a été accepté en tant qu’opérateur sectoriel pour le tout nouveau CEN/TC396 Terrassements.


Measurement of the nighttime visibility (retroreflection) of road markings in dry weather (RL)

Areas of Expertise (1)


La visibilité de nuit est l’intensité lumineuse perçue par un automobiliste à 30 m provenant d’une unité de surface du marquage échantillonné et par une unité d’intensité lumineuse du marquage, lorsque ce marquage est éclairé par le rayon lumineux oblique des phares du véhicule. La visibilité de nuit est, tout comme celle de jour, exprimée en mcd lx-1 m-2. Les cahiers des charges exigent des marquages neufs des rétroréflexions situées entre 100 et 300 mcd lx-1 m-2 pour les marquages blancs et entre 80 et 200 mcd lx-1 m-2 pour les jaunes. Certains marquages blancs présentent des rétroréflexions initiales de 500 mcd lx-1 m-2 et plus. L’appareillage de mesure dont dispose le CRR est un RL2000 de la firme DELTA et est décrit dans la fiche d’information CRR F56.