Disclaimer
The contents of this handbook reflect the views of the authors, who are responsible for the facts and the accuracy of the data published herein. The contents do not necessarily reflect the official view or policies of the Federal Highway Administration (FHWA). This handbook does not constitute a standard, specification, or regulation. It is not intended for construction, bidding, or permit purposes. The engineer in charge of the project was Robert Milstead, P.E. #17172 (Maryland).
Notice
The United States Government does not endorse products or manufacturers. Trade or manufacturers' names appear herein solely because they are considered essential to the object of this handbook.
Acknowledgements
The report that led to the development of this handbook was sponsored by the Texas Department of Transportation and the Federal Highway Administration. The research report was written by Dr. James Bonneson, Mr. Michael Pratt, Mr. Jeff Miles, and Dr. Paul Carlson (1). These researchers are employees with the Texas Transportation Institute (TTI).
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