Citation

Ritter JR. Highw. Res. Rec. 1973; 447: 1-7.

Copyright

(Copyright © 1973, National Research Council (U.S.A.), Highway Research Board)

DOI

unavailable

PMID

unavailable

Abstract

Comparisons were made of side-by-side double yellow lines on rural 2-lane roads. One line was a reference line of 0.015-in. Wet paint film with 6 lb/gal of conventional glass spheres applied by the drop-on method. The experimental line either was unbeaded or had various amounts of several types and sizes of glass beads. One experimental line consisted of a 0.010-in. Wet paint film with 4 lb/gal of glass spheres applied by the drop-on method. Evaluations were made under night driving conditions at normal speeds on dry and wet pavement. The methods of application, control, and evaluation are also described. Both colored movies and slides were made at regular intervals for a documentary record. Samples of the photographs are included. This approach has been found to have many advantages over existing techniques and few disadvantages.

Language: en

Keywords

HIGHWAY SIGNS, SIGNALS AND MARKINGS; ROADS AND STREETS - Rural; ROADBUILDING MATERIALS