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Energy and Surface Performance of Light-Coloured Surface Treatments
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Energy and Surface Performance of Light-Coloured Surface Treatments
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Energy and Surface Performance of Light-Coloured Surface Treatments
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Journal Article
Energy and Surface Performance of Light-Coloured Surface Treatments
2025
Overview
This study presents the evaluation of the photometric performance and energy-saving potential of light-coloured pavement mixtures (LCPMs) in road lighting applications, along with their effects on surface friction, macrotexture, and specularity. The application of LCPMs in tunnels can enhance road surface illumination, thereby improving driver visibility, increasing road safety and comfort, and reducing energy consumption per kilometre. While such surface treatments enable more efficient and cost-effective lighting, maintaining an optimal balance in surface performance poses many challenges due to the impact on concurrent targets in terms of friction, macrotexture, noise contribution, and specularity. Indeed, issues related to friction performance, macrotexture characteristics, and the concurring energy-saving potential of LCPMs remain insufficiently explored. To this end, investigations were conducted to assess the energy-saving potential of light-coloured surface treatments and to evaluate the photometric, frictional, and macrotexture properties of different densely graded LCPMs. A new method was set up and implemented to compare different surface treatments. The results indicate that light-coloured surface treatments increased the average luminance coefficient (up to 0.2406), with glass-containing mixtures offering greater potential for improved surface texture, friction, and energy-efficient road lighting.
