PDFTech ReportDOT-TSC-OST-76-60Air transportationData collectionFreight transportationHighway transportationData processingManagementMotor carriersPassenger transportationPlanningPolicyRailroad transportationStatisticsTransportationWater transportationWaterwaysUnited StatesUnited States. Dept. of Transportation. Office of the SecretaryTap, RobertKaprelian, AlanJohn A. Volpe National Transportation Systems Center, (U.S.)United States. Dept. of Transportation. Office of the SecretaryNTL-REFERENCES AND DIRECTORIES-REFERENCES AND DIRECTORIESNTL-REFERENCES AND DIRECTORIES-StatisticsVolpe National Transportation Systems Center, Technical Reference CenterThe document contains an extensive review of internal and external sources of transportation d...