Table 5-3c,,,
Top U.S. Domestic Freight Commodities,,,
by Mode: 1993,,,
(Millions of U.S. short tons),,,
,,,
Mode of transportation,Total,Mode of transportation,Total
,,,
  Air,,  Road,
"     Machinery, excluding electricals ",0.51,     Nonmetallic minerals ,"1,504.2"
     Chemicals or allied products ,0.36,     Petroleum or coal products ,992.7
"     Electrical machinery, equipment or supplies ",0.28,     Food or kindred products ,743.2
     Transportation equipment ,0.26,"     Lumber or wood products, excluding furniture ",583.1
"     Instruments, photographic and optical goods,",,     Chemicals or allied products ,310.5
       watches or clocks ,0.10,,
,,  Water transport,
,,     Petroleum and petroleum products ,930.6
  Pipeline,,     Crude materials ,360.6
     Crude oil ,"1,019.6",     Coal ,300.4
     Petroleum products ,850.9,     Food and farm products ,269.3
     Natural gas ,554,     Chemicals and related products ,131.6
,,,
  Rail,,  Intermodal (road and rail combination),
     Coal ,631.1,     Transportation equipment ,7.6
     Farm products ,174.9,     Chemicals or allied products ,2.1
     Nonmetallic minerals ,144.9,     Food or kindred products ,1.9
     Petroleum or coal products ,136.2,"     Lumber or wood products, excluding furniture ",1.7
     Chemicals or allied products ,130.3,"     Pulp, paper or allied products ",1.6
,,,
SOURCES,,,
"Air, road and rail: U.S. Department of Commerce. U.S. Census Bureau. 1993 Commodity Flow Survey. Special tabulation.",,,
"  (Washington, DC: 1998).",,,
"Pipeline: U.S. Department of Transportation. Bureau of Transportation Statistics. Special tabulation. (Washington, DC: 1998).",,,
"Water transport: U.S. Army Corps of Engineers (USACE). Waterborne Commerce of the United States, Calendar Year 1996; Part 5 -"
"National Summaries. (New Orleans, LA: 1997)."