Evaluation of Rumble Strips

Report No: 75-R10

Published in 1974

About the report:

Rumble strips have been used for a number of years at locations where a physical stimulus was needed to alert a motorist to some hazard. However, little study has been done to determine the optimum spacings for the strips. Through testing existing Virginia rumble strip installations and various spacings at a test location, a basis was established for the spacings. The study revealed the following: (1) A spacing of 2' (0.61 m) or less created a large amount of wheel hop and/or did not allow the tires to descend between the rumble strips, both of which are undesirable. (2) A 10' (3.05 m) was found to be the best for a stopping situation such as at an intersection. (3) A 5' (1.52 m) spacing was best for use on the shoulders of roadways. (4) Strips should be no higher or lower than 1/2" (12.7 mm).

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.


  • Kurt A. Franke

Last updated: February 5, 2024

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