Citation

Robnett QL. Transp. Res. Rec. 1979; 713: 6-9.

Copyright

(Copyright © 1979, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

This paper describes very briefly the development and preliminary testing of a snowplow-resistant porous lane-marking system for use with open-graded asphalt friction courses. A complete description of the research study methods and findings can be found in Robnett and Burrows. Based on the results of this study, it is concluded that the combined system of an OGAFC surface and a porous lane-marking stripe can provide superior centerline, wet-night marking compared to conventional beaded paint on a dense-graded asphalt surface. The results also demonstrate that, for the one-year test period, porous lane-marking systems provided better delineator performance under wet-night conditions than the conventional beaded paint on the OGAFC surface. An estimate of the total installation cost of the porous lane-marking systems was not determined. Apparently the initial cost would be substantially more than that of conventional lane-marking materials. To be economically attractive, the porous lane-marking system would thus have to exhibit a much longer service life. Because of a limited time frame, this study did not examine or attempt to estimate the life expectancy of optimally designed and efficiently installed porous lane-marking systems. Thus, before final decisions can be made regarding overall economy of the porous systems, additional field installations and comparative studies are needed. The economic attractiveness would undoubtedly be improved if appropriate installation equipment and techniques were developed.