This archived document is maintained by the Oregon State Library as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Title from PDF title page (viewed on July 15, 2015)."FHWA-OR-RD-16-01"--Technical report documentation page."SPR 741."Includes bibliographical references (pages 139-150).Sponsored by Oregon Department of Transportation, Research Section; Federal Highway AdministrationMode of access: Internet from the Oregon Government Publications Collection.Text in English.Final report