LOW PROFILE MARKERS FOR WET/NIGHT VISIBILITY

The feasibility of using a high efficiency retroreflector as a low profile highway marker to resolve the problem of wet night lane and edge delineation problems on highways was determined. Although the placing of delineation devices flush to the road surface solves the problem of snow plow damage, the tremendous loss of light and the inability to collect and reflect adequate light with retroreflective principles, other methods of achieving the objective must be considered. The costs involved in procuring and placing the devices is also a limiting factor. Details of the implementation, including placing and subsequent testing in 10 states, are described. The evaluation of aluminized-backed markers and Lucite-backed markers are detailed.

  • Supplemental Notes:
    • Prepared for the FHWA Office of Research and Development.
  • Corporate Authors:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  USA  20590
  • Publication Date: 1978-11

Media Info

  • Features: Appendices; Photos;
  • Pagination: 18 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00194193
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-TS-79-205 Final Rpt.
  • Files: TRIS, USDOT
  • Created Date: Jun 30 1979 12:00AM