NIGHT VISIBILITY OF OVERHEAD GUIDE SIGNS: A REVIEW OF THE LITERATURE

Within recent years, an increased interest has been shown in lowering guide sign costs by eliminating illumination and using non-reflective sign backgrounds. Questions have been raised concerning the effectiveness and safety of such signing innovations. It is also a question whether such signing treatments should be sanctioned in the Manual on Uniform Traffic Control Devices. This review considers the adequacy of the proposed guide sign configurations in the light of findings in the scientific and technical literature. In particular, the request by the California Department of Transportation (CALTRANS) that non-illuminated opaque overhead signs be permitted, has been examined. In conducting this review, over a hundred research studies were uncovered concerned with diverse aspects of sign effectiveness. An opportunity was thus afforded to organize this literature, identify the basic issues pertinent to sign material choice and to summarize the substantive findings of previous studies. (Author)

  • Corporate Authors:

    Federal Highway Administration

    Turner-Fairbank Highway Research Center, 6300 Georgetown Pike
    McLean, VA  United States  22101
  • Authors:
    • Gordon, D A
  • Publication Date: 1984-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 99 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00395189
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-RD-84-087 Final Rpt., HS-039 184, FCP 21P3-132
  • Files: HSL, TRIS, USDOT
  • Created Date: Nov 30 1987 12:00AM