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The contents of this report reflect the views of the author(s), who is responsible for the facts and the accuracy of the data presented herein. The contents do not necessarily reflect the official views or policies of the Virginia Department of Transportation, the Commonwealth Transportation Board, or the Federal Highway Administration. This report does not constitute a standard, specification, or regulation. Any inclusion of manufacturer names, trade names, or trademarks is for identification purposes only and is not to be considered an endorsement.

Title:

Evaluation of Curve Delineation Signs on Rural Highways
Authors:
Jennings, Barton E.
Michael J. Demetsky
Year: 1983
VTRC No.: 84-R16
Abstract: The three post-mounted delineator systems currently used in the state of Virginia were tested at five sites for their effectiveness in controlling run-off-the-road accidents. The changes in speed and lateral placement noted with the systems in place we-re taken as drivers' responses to the systems. The study showed that drivers react most favorably to chevron signs on sharp curves > 7 degrees and to standard delineators on curves < 7 degrees. It is suggested that state-wide use of delineators based on these findings will improve the safety and uniformity in delineation on the rural highway system.