seriesNo,seriesEntityName,seriesTitle,seriesDateRange,seriesArrangement,seriesDescription,seriesTotRetentDesc,seriesPrimaryClassCode,seriesExtentDesc 21105,Road Commission. Department of Highways,Traffic Bulletins,1956-1970.,Chronological by date.,These bulletins contain information pertaining to traffic volume and the daily average of vehicles on Utah highways. The information is recorded by automatic counters located throughout the state.,,Public,0.20 cubic foot