NCHRP Research Results Digest 346: Optical Sizing and Roundness Determination of Glass Beads Used in Traffic Markings: A Summary
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NCHRP Research Results Digest 346:
Optical Sizing and Roundness Determination of Glass Beads Used in Traffic Markings: A Summary
(2010)
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Description

TRB's National Cooperative Highway Research Program (NCHRP) Research Results Digest 346: Optical Sizing and Roundness Determination of Glass Beads Used in Traffic Markings summarizes the results of a project that examined the precision and bias of both optical and traditional mechanical methods for different glass bead types. The project also compared the precision and bias of various measurement methods, and explored development of a practice for the use of computerized optical methods and equipment to measure the size and roundness of glass beads used in traffic markings.

The final report on this project was published as NCHRP Web-Only Document 156.

Topics

  • Transportation — Highways
  • Transportation — Operations and Traffic Management
  • Transportation — Materials
  • Transportation — Pavements
  • Transportation — Safety and Human Factors

Publication Info

36 pages | 8.5 x 11
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