Public Roads;Federal Highway Administrationhttps://doi.org/10.21949/15235601927PDFJournalLadd, George E.Jackson, F. H.Abbot, L. A.United States. Department of Agriculture. Bureau of Public Roads{65771}United States. Government Printing Office{1103}United StatesCostsDesignEnvironmentFreight transportationFinancingManagementMaterialsOperationsPavementsPolicyPublic roadsSafetySoilsStructuresStudiesStatisticsInfrastructureResearchFUNDINGHIGHWAY STATISTICSVolume 8, 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 Transportation does not endorse any manufacturers, products, or services cited here...