So far, a lot of preliminary noise results have been reported. However, one of the key elements of the CP Tech Center testing in Europe was texture measurements using the Robotic Texture (RoboTex) Measurement System. Due to the need for traffic control, RoboTex measurements were not possible on all of the sections, however 8 exposed aggregate concrete sections were tested in total: 5 in Austria, 2 in Belgium, and 1 in Germany.
In summarizing the texture measurements, “cards” have been developed. On each card, you will find representative photos of the various pavements, along with a 3D image of the RoboTex data. Summary metrics are also given including the average Mean Profile Depth (MPD) and a spectral analysis of texture per the most current draft of the ISO 13473-4 specification. Average On-Board Sound Intensity Levels (A-weighted, ref 1 pW/m²) are also provided for quick reference.
Be sure to collect them all!