Measuring Techniques for Retroreflectivity Levels of Small Signs

Abstract:

Collisions between vehicles and pedestrians are a significant problem, and substantial evidence indicates that the problem is closely linked with low illumination. A less expensive approach to enhancing the conspicuity of pedestrians involves using retroreflective material – material that has been engineered to passively reflect light back in the direction of its source. In a Textile faculty of TU Liberec was developed microscopic method to research the affecting factors textile thin bands retroreflectivity [1]. This work has been done through the use of several quality tools allowing studying different phenomena such as effect of color and technology on retroreflectivity levels.

• Periodical: Defect and Diffusion Forum (Volume 368)
• Pages: 193-197
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.368.193
• Online since: July 2016
• Authors: Michal Vik*, Brigita Kolčavová Sirková, Martina Viková, Lucie Duchoňová, Marcela Pechová
• Keywords: High Visibility, Microscopy, Retroreflectivity, Safety

References

[1] Vik, M., Viková, M., Kasparová, M.: Decay of Phosphorescent Warning Design on Textile Substrates, Applied Mechanics and Materials Vol. 440 (2014) pp.112-117, ISSN: 1662-7482.

DOI: 10.4028/www.scientific.net/amm.440.112

[2] J. Lloyd: A brief history of retroreflective sign face sheet materials, Information on http: /www. rema. org. uk/pub/pdf/history-retroreflective-materials. pdf.

[3] G. Wyszecki and W. S. Stiles, Color Science: Concepts and Methods, Quantitative Data and Formulae, John Wiley and Sons, New York, (1982).

DOI: 10.1002/col.5080080421