Evaluation of Curve Delineation Signs on Rural Highways

Report No: 84-R16

Published in 1983

About the report:

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.

Disclaimer Statement: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.


Other Authors

Barton E. Jennings, Michael J. Demetsky, Ph.D.

Last updated: January 17, 2024

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