Citation

Mullowney WL. Transp. Res. Rec. 1978; 681: 1-16.

Copyright

(Copyright © 1978, Transportation Research Board, National Research Council, National Academy of Sciences USA, Publisher SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

A prototype delineation system developed for installation on concrete median barriers is described. The visibility of the reflective devices used was evaluated with respect to the following factors: the effect of weathering on the reflectivity of the reflectors; the effect of weathering and other destructive forces on the durability of the reflectors; and the effects of vertical placement, opposing headlight glare, and wet nighttime conditions on the visibility of an installation. Mounting materials and techniques were evaluated to determine those that were most durable with respect to weathering and other destructive forces. To document permanently the effects of headlight glare and wet nighttime conditions on the visibility of the system, 8-mm color motion pictures were taken of an experimental installation.