Nordic certification system for road marking materials: version 3:2016

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Trond Cato Johansen
Sven-Olof Lundkvist

The report describes the certification system for road marking materials and how it is applied in the Nordic countries. Procedures and methods that are used for application of materials and performance measurements are specified. The Nordic certification system for road marking materials was introduced in 2015. The system is based on documented performance measurements of material samples applied on test fields on public roads. From 2016, the certification system includes both flat (type I) and structured/profiled (type II) markings. The certification system is based on the European standards EN 1824 Road marking materials – Road trials, EN 1436 Road marking materials – Road marking performance for road users, and EN 12802 Road marking materials – Laboratory methods for identification. Material tests are carried out at two test sites: one in Sweden and one in Denmark. The tests fields are situated on public roads and the tested materials are thus exposed to real traffic conditions and to weather conditions representative for the Nordic countries. The materials are followed up by performance measurements during one or two years. The certification includes requirements on coefficient of retroreflected luminance RL under dry and wet conditions, luminance coefficient under diffuse illumination Qd, friction and colour coordinates. The number of wheel passages are measured at the test sites annually. The certification system includes material identification, which allows for future material sampling and analysis.

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