We provide acceptance testing of new noise test tracks, and periodic checking of existing tracks at intervals required by the standard. Conformity testing to both the new ISO 10844:2014 and the prior ISO 10844:2011 and ISO 10844:1994 versions of the standard can be provided.
For surface texture, ISO 10844:2014 requires a surface profile device meeting ISO 13473-3, characterization of pavement texture by use of surface profiles, class DE. We use a laser-based texture profiling device to scan along the entire length of the test track.
For sound absorption, ISO 10844:2014 requires an impedance tube device meeting ISO 13472-2, measurement of sound absorption properties of road surfaces in situ. Such an instrument uses the two-microphone method for acoustical absorption. The measurement is conducted in-situ, without the need for extracting core samples and the associated patching repairs.