Grooved Stripes for Plow-resistant Wet-night Lane Delineation
Auteur: James E. Bryden, Joseph R. Allison, Gary F. Gurney
Nombre de pages: 26 pages
ISBN: ISBN non disponible
Edition: Department of Transportation, Federal Highway Administration
Date de publication: Department of Transportation, Federal Highway Administration
Description: In this study's first stage, 44 combinations of groove geometry and paint treatments were installed on an abandoned roadway to evaluate their wet-night visibility. The most promising patterns were then installed on an operational highway for further evaluation in the study's second stage. The results indicated that only a recessed reflector system was more visible than conventional beaded paint stripes from a moving vehicle. This report details a third stage, which consisted of placing 105 recessed reflectors on an operational highway to identify installation problems, the amount of delination provided, and possible maintenance problems. Variables included in the installation were pavement type, roadway geometry, and reflector and recess depth and configuration. Evaluations consisted of wet-night visibility surveys, system condition surveys, telephotometer measurements, and subjective evaluations.