REFLECTIVE TRAFFIC BEAD STUDY

EVALUATION OF A NEW FLOATING TYPE OF TRAFFIC BEAD SHOWS THAT THESE SMALL UNIFORMLY-GRADED BEADS ARE SUPERIOR IN BOTH BRIGHTNESS AND DURABILITY TO THE COARSER TRAFFIC BEADS THAT THE STATE HAD BEEN USING. THE TESTS WERE PERFORMED ON CENTERLINE STRIPES PLACED ON BOTH ASPHALT AND CONCRETE SURFACES. DURING THE 3 YEAR TEST PERIOD, THE BRIGHTNESS OF 78 TEST SECTIONS WAS EVALUATED BY HUMAN EVALUATION TEAMS AND BY A PHOTOMETER DEVELOPED DURING THE PROJECT. PLANS FOR THE CONSTRUCTION OF THESE PHOTOMETERS ARE INCLUDED AS AN AID TO OTHERS WHO MAY WANT TO EVALUATE BEAD PERFORMANCE. /AUTHOR/

• Corporate Authors:

  Colorado Department of Highways

  4201 East Arkansas Avenue
  Denver, CO  United States  80222

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Publication Date: 1970-5

Subject/Index Terms

• TRT Terms: Asphalt; Brightness; Concrete; Durability; Glass beads; Photometers; Test sections
• Old TRIS Terms: Reflective beads
• Subject Areas: Geotechnology; Highways; Materials; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 00224971
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: Final Report
• Files: TRIS, USDOT, STATEDOT
• Created Date: Mar 7 1971 12:00AM