Public Roads;Federal Highway Administrationhttps://doi.org/10.21949/15234851918PDFJournalDuffey, EdwinMackall, J. N.Sohier, William D.Bennett, C. J.Upham, Charles M.Thompson, W. G.Harrison, J. L.Bullen, J. T.Jackson, F. H.United States. Department of Agriculture. Office of Public Roads and Rural EngineeringUnited States. Government Printing OfficeUnited StatesResearchFreight transportationPolicyFinancingStructuresPavementsOperationsMaterialsSecurityInfrastructureHuman resources managementConstructionManagementPartnershipsFUNDINGVolume 1, Issue(s) 2These documents are disseminated under the sponsorship of the U.S. Department of Transportation, Federal Highway Administration, in the interest of information exchange.The U.S. Department of Tran...