ROAD SIGNS QUALITY
Specialists of “DerzhdorNDI” SE Road Equipment Department developed MR B.2.3-37641918-902:2019 "Methodical recommendations for measuring the indicators of quality characteristics of road signs".
Guidelines were elaborated to improve the quality control of road signs using retro-reflective film installed on public roads.
The elaborated document presents:
• Test procedure for retroreflective films, road signs and signs in general;
• a clear methodology for measuring the specific light power factor, color coordinates, and luminance coefficient is established;
• a methodology for measuring conditional light resistance, elasticity, resistance to static fluids of retro-reflecting films (these methods were absent in actual national standard) presented additionally
• the method of testing the marks for impact strength, resistance to alternating temperatures, adhesion presented (these methods were also absent in actual national standard)
The methodological recommendations will allow carrying out more qualitative verification of both the materials used for the production of road signs and the road signs themselves, which in turn will lead to choose the best quality signs of the leading manufacturers.