Evaluation of Raised Pavement Markers for Reducing Incidences of Wrong-way Driving

Report No: 75-R67

Published in 1975

About the report:

The research reported here was undertaken to determine the feasibility of using raised pavement markers on interstate off-ramps in such a configuration that the driver will be alerted as a result of viewing an unexpected phenomenon. The results of this preliminary investigation show that the raised pavement marking system, consisting of a pattern of 45 markers, was effective in alerting drivers and would cause a wrong-way driver to realize his mistake accordingly. Based on the results of this initial phase, it is recommended that the study be expanded by permanently placing raised markers at two or three interchange off-ramps for further study. It is anticipated that this recommendation will be implemented in the near future.

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.


  • Frank D. Shepard 

Last updated: February 5, 2024

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