Optimization of Bead Application for Painted Pavement Markings Maintenance Application

NHDOT forces perform maintenance applications of painted pavement markings to roadways each year. Retroreflective beads are applied as part of the paint application for nighttime reflectivity. The application rate of beads can vary. Too little and the retroreflectivity wears away before annual re-application; too much and the beads are wasted. This study will research the optimum application rate such that minimum retroreflectivity is achieved for the life of the painted line (12-16 month) without unnecessary expense for beads. The major tasks are outlined as follows: • Establish a test deck with a series of painted lines, each with a different application rate of beads (6.0 pound/gallon to 9.0 pound/gal at 1.0 or 0.5 pound increments) • Subject the test deck to traffic and winter maintenance. • Test retroreflectivity regularly (2 month intervals) • Evaluate reduction of retroreflectivity versus time and determine which application rate allowed minimum retroreflectivity to be maintained for 12 months and 16 months Application rates for future maintenance will be adjusted to the optimum rate.

Language

  • English

Project

  • Status: Proposed
  • Funding: $50,000
  • Contract Numbers:

    43272A

  • Sponsor Organizations:

    New Hampshire Department of Transportation

    John O. Morton Building
    P.O. Box 483
    Concord, NH  United States  03302-0483
  • Managing Organizations:

    New Hampshire Department of Transportation

    John O. Morton Building
    P.O. Box 483
    Concord, NH  United States  03302-0483
  • Project Managers:

    Nash, Deirdre

  • Performing Organizations:

    New Hampshire Department of Transportation

    John O. Morton Building
    P.O. Box 483
    Concord, NH  United States  03302-0483
  • Principal Investigators:

    Baronas, Lee

  • Start Date: 20181101
  • Expected Completion Date: 20201231
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01686179
  • Record Type: Research project
  • Source Agency: New Hampshire Department of Transportation
  • Contract Numbers: 43272A
  • Files: RiP, STATEDOT
  • Created Date: Nov 20 2018 1:32PM