Crack identification by use of tire/road noise

The many functional aspects of the road are related to road surface characteristics, and it is difficult to evaluate road damage with single road surface property. Road surface conditions are mainly evaluated by the Maintenance Control Index (MCI) including main three distress factors using cracks, rut depth and roughness of the road surface in Japan. However, it is difficult to evaluate another localized distresses such as bumps, potholes, and faults of the road surfaces. In this research, focusing on tire / road noise, a new method to evaluate road surface damage was investigated. It is commonly recognized that tire/road noise is greatly influenced by the road surface smoothness (evenness) and the Public Works Research Institute (PWRI) frequently conducts monitoring the tire/road noise in terms of road environmental protection as well. In this case, it is critical to calibrate the measurement system of the road noise taking into account air temperature, vehicle speed and so on. In this research, we propose a new calibration method of the system correcting frequency characteristics based on the survey results of the community roads where road surface damages are anticipated. It is visually confirmed that the correlation between the tire/road noise and road surface texture is greatly high by the frequency analysis of the sound. The new method helps surveyor to identify the many distress conditions of localized defects, which have been difficult to find so far.

Language

  • English

Media Info

  • Pagination: 12p
  • Monograph Title: Symposium on Pavement Surface Characteristics (SURF), May 2-4, 2018, Brisbane, Queensland

Subject/Index Terms

Filing Info

  • Accession Number: 01678450
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Aug 23 2018 2:38PM