Evaluation of a laser road surface tester.

Details

• Creators:
  Freeman, Thomas E ; McGhee, Kenneth H
• Corporate Creators:
  Virginia Transportation Research Council (VTRC) ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Road meters
  • Pavement distress
  • Roads--Equipment and supplies
  • Surface roughness--Equipment and supplies
  • Road meters--Evaluation
• Publication/ Report Number:
  VTRC 95-R25
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Edition:
  Summary rept.
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Description:
  The purpose of this study was to evaluate the accuracy and usefulness of pavement distress data derived from a laser road surface tester (RST) operating on Virginia's interstate highway system. The evaluation was conducted by comparing rut depth, roughness, cracking, and macrotexture measurements generated by the Laser RST with those obtained using conventional methods. The study concluded that the laser RST was not adequate as a crack pattern recognition tool. The device was not capable of generating surface macrotexture or rut depth measurements that would be of use to the Virginia Department of Transportation. Roughness information collected by the laser RST correlated well with the May's ridemeter and the K.J. Law 8300 roughness surveyor. It should be noted, however, that several years have passed since the data used in this study were collected, during which time the laser technology changed significantly.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19951/dot_19951_DS1.pdf
• File Type:
  [PDF - 1.30 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:8a3314e095bbea8f73d90997df0046ce1f05b082ca79717649ddd91585796727b96cd5eec7fdee020cc8a7f81dd0e4ec84fa70cea1587c7ee27915c649071b61