Road safety has an increasing importance, especially after UN proclamation 2011-2020 - Decade of Action for Road Safety. As many factors contribute to producing traffic accidents, infrastructure has its own part. Studies related to road surface are very important, especially due to the fact that the quality of the tyre-road surface contact could influence the occurrence of road accidents. Skid-resistance, permeability, and evenness are the main properties that should be taken into consideration for a road surface. This paper aims to correlate the characteristics of materials used in the wearing layer with the risk of producing road accidents, by calculating the braking distance, as a sub-component of stopping sight distance. The results of laboratory tests undertaken on aggregates will show that only by varying the source of materials, stopping distance can differ with up to 20 meters.
