Influence of Reflecting Characteristics of the Road Pavement on Lighting in the Mesopic Range

• Main Authors: L. Nazarenko, T. Mozharovska, N. Guriev
• Format: Article
• Language: English
• Published: LLC Production and Commercial Company «FAVOR, LTD» 2017-12-01
• Series: Метрологія та прилади
• Subjects: roadway reflecting characteristics, road lighting, mesopic photometry
• Online Access: https://mmi-journal.org/index.php/journal/article/view/147
• ISSN: 2307-2180; 2663-9564

Street lighting is a major consumer of electricity in country. Nevertheless, a significant proportion of street luminaires does not meet modern standards. The low efficiency of old light sources leads to the fact that energy consumption for lighting in Ukraine is much higher than in developed countries. This si­tuation can be corrected by conducting of state target programs for the modernization of lighting systems. The maximum efficiency of the use of light flux is possible only in case of effective interaction of light with a road pavement.The effect of pavement reflective properties on lighting systems under conditions of the mesopic range was considered in the paper. An experiment was carried out to investigate diffe­rent examples of pavement which are most often used in Ukraine. One aim was to verify that light levels sirectly depend not only on the used light source, but also on the road pavement. Next aim was to clarify the nee­ded to update the existing pavement reflective pro­perties database in Ukraine considering the results of researches indicates that pavement with lighter filler would be more effective in street lighting systems as has higher reflection coefficients in the short-wavelength region which will provide higher brightness of the roadway with the same energy consumption for street lighting. Road pavement is an important factor in optimizing and improving the energy efficiency of road lighting. Creation of a new correct base of reflectance coefficients and extended study of the impact of the roadway on the efficiency of the lighting system in general and in conditions of mesopic photometry is necessary for the design of modern energy-efficient lighting systems.