BS EN 1463‑2:2021 pdf download.Road marking materials — Retroreflecting road studs Part 2: Road test performance specifications.
4 Test sites and conditions 4.1 General Test sites shall be arranged at suitable locations that meet at least the requirements of 4.2 to 4.5. The test results will depend on the weather, traffic and road surface conditions. These shall all be described in the corresponding individual test report (see 8.2).
4.2 Test site design characteristics and location Studs shall be tested on a road with two lanes in one direction (Figure 1). On this test site there shall be no other than the national maximum speed limit.Roads used for test sites shall be straight and flat, with the lowest longitudinal and transverse gradient possible and free of singular points (such as traffic lights and intersections), substantial obstacles to daylight, source of frequent dirt (such as quarries and field exits) and movement of tracked vehicles. Any change of site conditions during the test period shall be avoided. The lengthwise slope and any special circumstances shall be stated in the general report for the test site. NOTE The in use specifications for “flat” refer to a maximum slope of 4 %.
4.3 Weather conditions At the termination of a road trial, a weather report for the duration of the road trial shall be produced. The weather report can be based on data from the nearest meteorological station and it can include data obtained on the test site itself; it should include aspects of the weather of influence to the results of the road trial. Whether or not it is agreed between the participating parties that weather information is to be collected, the weather report shall include as a minimum an account of temperature conditions during the testing period. NOTE Annex C is providing guidance for a simplified reporting method in accordance with the Köppen Climate Classification. The weather report can include a monthly account of mean minimum and maximum day temperatures, the cumulated precipitations in millimetres of water and the number of sand/grit scattering actions, snow ploughing actions etc.BS EN 1463‑2 pdf download.