Quality Assurance of Road Roughness Measurement

Details

• Creators:
  McGhee, Kevin K
• Corporate Creators:
  Virginia. Dept. of Transportation ; Virginia Transportation Research Council (VTRC)
• Subject/TRT Terms:
  Accuracy Field Studies High-speed Road-profiling Equipment Highway Maintenance International Roughness Index (IRI) Profilometers Quality Assurance Roughness
• Publication/ Report Number:
  FHWA/VTRC 00-R20
• Resource Type:
  Tech Report
• Geographical Coverage:
  Virginia
• Edition:
  Final report.
• Corporate Publisher:
  Virginia Transportation Research Council (VTRC)
• Abstract:
  This report describes a study designed to establish the accuracy and repeatability of high-speed, road-profiling equipment. This effort focused on a series of roughness validation sites. The study addresses selecting the appropriate sites, determining the "true" or reference profiles for these sites, implementing high-speed testing procedures, and developing a method for processing profiles and reducing the corresponding roughness indices. The findings suggest that laser-equipped, high-speed inertial profilers, driven by skilled operators, are capable of providing exceptional levels of repeatability within an acceptable bias for a standard reference device (the Face Companies' Dipstick®). The study further offers some preliminary repeatability and accuracy goals for equipment used to conduct construction acceptance testing (for smoothness) as well as for network roughness surveys.
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:d35833b6325320af166beb18ebc03f4f37d9d0322f97403b0bff3cc181c68923
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/19515/dot_19515_DS1.pdf
• File Type:
  [PDF - 491.22 KB ]