Research for AASHTO Standing Committee on Highways. Task 364. Revision of AASHTO PP-74 Test Method for Optical Sizing and Roundness Determination of Glass Beads Utilized in Traffic Markings

The objective of this study is to revise American Association of State Highway and Transportation Officials (AASHTO) PP 74 to be applicable for use with optical computerized particle analyzers entered into the market since the development of the test method in 2011. The precision estimates of the test shall also be updated by including the measurements made with the new equipment.


  • English


  • Status: Completed
  • Funding: $100000.00
  • Contract Numbers:

    Project 20-07, Task

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Harrigan, Edward

  • Performing Organizations:

    Pavement Systems LLC

    6105 Maiden Lane
    Bethesda, MD  United States  20817-
  • Principal Investigators:

    Azari, Haleh

  • Start Date: 20150330
  • Expected Completion Date: 0
  • Actual Completion Date: 20160330
  • Source Data: RiP Project 39393

Subject/Index Terms

Filing Info

  • Accession Number: 01559061
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 20-07, Task
  • Files: TRB, RiP
  • Created Date: Apr 1 2015 1:25AM