THE WALKER ROUGHNESS DEVICE FOR ROUGHNESS MEASUREMENTS. FINAL REPORT

A Self-Calibrating Road Roughness Device known as the Walker Roughness Device (WRD) or SIometer has been under study and evaluation by the Department for the last several years. This device looks promising as a tool to collect road roughness for the Pavement Evaluation System. There is a very definite need for an automated data collection system for road roughness to eliminate some of the cost for this operation. This project was initiated to upgrade the WRD and develop procedures so it can be used for collecting serviceability index roughness measurements for the state. This report describes the procedures for correlating the WRD with the SDP and using the WRD for roughness measurements.

• Record URL:
  • https://library.ctr.utexas.edu/digitized/texasarchive/phase2/479-1f.pdf
• Record URL:
  • https://rosap.ntl.bts.gov/view/dot/84997
• Supplemental Notes:
  • Research study title: Upgrade of Self-Calibrating Road Roughness Device.
• Corporate Authors:

  University of Texas, Arlington

  Arlington, TX  United States  76010

  Texas State Department of Highways & Public Transportation

  P.O. Box 5051
  Austin, TX  United States  78763

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Walker, R S
  • Phung, L T
• Publication Date: 1987-7

Media Info

• Media Type: Digital/other
• Features: Appendices; Figures; References;
• Pagination: 45 p.

Subject/Index Terms

• TRT Terms: Costs; Data collection; Instruments for measuring roughness; Profilometers; Roughness; Serviceability
• Identifier Terms: Walker roughness device
• Uncontrolled Terms: Serviceability Index
• Old TRIS Terms: Surface dynamics profilometer
• Subject Areas: Design; Finance; Highways; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00472582
• Record Type: Publication
• Report/Paper Numbers: FHWA/TX-87/75+479-1F, Res Rept 479-1F
• Contract Numbers: 8-10-85-479
• Files: NTL, TRIS, ATRI, USDOT, STATEDOT
• Created Date: Aug 31 1987 12:00AM