Identification of Pavement Marking Colors

The Ohio Department of Transportation (ODOT) is charged with selecting and enforcing color specifications for pavement markings. In recent years, changes in materials have affected the physical appearance of these markings. Even though, at application, the colors meet current federal specifications, the specifications themselves are sketchy and, in some cases, given in terms of the physical properties of the materials rather than appearance. This method is particularly troublesome since the markings are viewed under a variety of lighting conditions and against different colored backgrounds (pavement types). Perhaps more of a problem is that current practice requires only a subjective evaluation of whether colors are within specification. Recently, the ODOT has also been put under a legislative mandate to require that a certain percentage of their contracts contain warranties. This mandate makes it necessary to develop appropriate specifications for acceptable changes in the color of pavement markings over time. Research is needed to develop these specifications with regard to the color appearance properties of markings. They need to be more relevant to the needs of the driver than the current specifications, and guidelines for objective evaluation need to be provided. This research includes a review of current literature on color, perception, and measurement as well as a review of current practices with regard to pavement markings. It also includes an investigation of human perception of the color of pavement markings under a variety of conditions and the development of specifications, tolerances for which procedures for enforcement can be easily applied by the ODOT.

Language

  • English

Media Info

  • Media Type: Web
  • Features: Figures; References; Tables;
  • Pagination: 39p

Subject/Index Terms

Filing Info

  • Accession Number: 01155095
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 16 2010 1:03PM