Nordic certification of road marking materials in Denmark 2015–2017

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Trond Cato Johansen

A Nordic certification system for road marking materials was introduced in 2015. In the first stage, the certification system applies to the countries of Denmark, Norway and Sweden. In these countries, a documented product approval will be required in order to use a road marking material on roads managed by the national road authorities. Product approval will be based on monitored and documented performance measurements of material samples applied on test fields on public roads.

The first round of material tests in Denmark started in autumn 2015. In all, 32 materials, out of which 24 were for certification and 8 for manufacturer’s internal test, were applied at the Danish test site in Hornbæk. In 2016, a new test site was established close to Gørlev, where another 22 materials were applied, 20 for certification and 2 for manufacturer’s internal test.

The present report documents the follow-up performance measurements that were carried out in 2017, i.e. one year follow-up measurements for materials applied in 2016 and two years follow-up measurements for materials applied in 2015. The performance parameters include the coefficient of retroreflected luminance (RL) under dry and wet conditions, the luminance coefficient under diffuse illumination (Qd), the friction, and the chromaticity in daylight.

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