Detection of ravelling

Influenced by weather conditions and traffic, road surfaces tend to lose aggregate. The last decade it becomes more and more clear, that this ravelling influences rolling noise, skid resistance and rolling resistance negatively. Up till now ravelling is detected through Visual Condition Surveys. However visual rating of ravelling is very subjective and inaccurate. Therefore from 1999 research and developments have been executed to detect ravelling through measuring inhomogeneity of texture with texture lasers. During SURF 2000 the results of preliminary research have been presented. That research showed the possibility of detecting the type of surface and its ravelling through processing data of ISO Class D texture lasers. It also showed that very accurate VCS-data are needed to establish a solid correlation between texture parameters and ravelling. In the presented paper is reported in what way and how accurate the severity of ravelling from texture data can be detected.


  • English

Media Info

  • Pagination: 11p

Subject/Index Terms

Filing Info

  • Accession Number: 01389573
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Aug 23 2012 3:35AM