Rutgers Pavement Resource Center – Ride Quality Tools

The Pavement Technology Unit had been inundated with requests from contractors to provide International Roughness Index (IRI) testing during various construction phases. With the release of the New Jersey Department of Transportation (NJDOT) Ride Quality specification, contractors can receive a financial penalty or bonus depending on the IRI values of the pavement surface after the final surface course has been placed and compacted. However, many of these contractors have been asking for testing of the intermediate layers during construction, in an attempt to validate the smoothness of these layers prior to the placement of the final surface layer. In an effort to support these requests and improve the final pavement smoothness, the Pavement Technology Unit has requested the evaluation and implementation of portable walk-behind pavement surface profile measurement devices that can determine the IRI of intermediate units as requested. After evaluation, the selected portable walk-behind pavement surface profile measurement device was recommended and implemented by the NJDOT Regional offices to provide on-site support to the asphalt industry. The tasks performed include: Evaluation of current walk behind systems; Purchase of four walk behind systems based on initial evaluation; Training of central pavement and material engineers and region materials engineers on the walk-behind systems (data collection, maintenance, and analysis); Purchase of a bare minimum high speed profiler that contains texture lasers; Modify the system to incorporate video, Global Positioning System (GPS), rut bar measurements and additional flexibility for future additions (tire/pavement noise); Require shock mounting on racks because boards popping out – may want to mount horizontally instead of vertically (more problems occurring on computers on top of racks); Consolidate the digital cameras control and storage on one computer; Interview Pavement Technology staff to discuss reoccurring mechanical problems with current technology; and Prepare Specification for transport vehicle (e.g., Ford chateau van model).

  • Record URL:
  • Supplemental Notes:
    • This research was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
  • Corporate Authors:

    Center for Advanced Infrastructure and Transportation

    Rutgers University
    100 Brett Road
    Piscataway, NJ  United States  08854-8058

    New Jersey Department of Transportation

    Bureau of Research, 1035 Parkway Avenue, P.O. Box 600
    Trenton, NJ  United States  08625-0600

    Research and Innovative Technology Administration

    University Transportation Centers Program
    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Maher, Ali
    • Szary, Patrick
    • Vitillo, Nicholas
    • Bennert, Thomas
    • Gucunski, Nenad
  • Publication Date: 2011-1


  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Tables;
  • Pagination: 87p

Subject/Index Terms

Filing Info

  • Accession Number: 01678588
  • Record Type: Publication
  • Report/Paper Numbers: 192-RU8485
  • Created Date: Aug 8 2018 12:30PM