Roadmeter Roughness Testing in Virginia

Report No: 71-R23

Published in 1972

About the report:

A passenger car mounted PCA roadmeter has been correlated with the BPR roughometer used for road roughness testing in Virginia for many years. The results showed a good correlation and that the roadmeter is capable of excellent reproducibility. Roadmeter (Rm) and roughometer (R) roughness are related by the equation R=1.14Rm+25. A temperature correction is necessary if precise roadmeter results are to be obtained. Spectra analysis using the roadmeter is useful in more completely describing roughness characteristics and in defining the most objectionable types of roughness. The roadmeter is recommended for use by the operating divisions of the Highway Department for all future road roughness testing.

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.


  • Kenneth H. McGhee, R. W. Gunn

Last updated: February 9, 2024

Alert Icon

Please note that this file is not ADA compliant. Choose one of below options: