I recommend major revisions to substantially improve the quality of the manuscript. The abstract of the manuscript is missing. A concise, informative abstract is critical. It should summarize the objectives, methods, key findings, and implications of the study.While the study discusses the use of bright aggregates, it also mentions sourcing challenges due to Swiss standards. Could you elaborate on these challenges, and perhaps discuss potential alternatives or solutions being considered in the ongoing research? This would enhance the practical relevance of the findings. 

The study mentions some surface technologies that were excluded due to ineffectiveness, such as pigment-modified asphalt. Providing more detail on why these technologies did not work as expected, including possible environmental or material factors, would add depth to the study and help guide future research efforts.