(Commodity Flow Survey Data Only)
| SCTG code | Top 10 commodity groupings | All modes | Trucking | Rail | Trucking share (%) | Rail share (%) |
|---|---|---|---|---|---|---|
| By value ($billions) | ||||||
| All commodities | 6,944 | 4,982 | 320 | 71.7 | 4.6 | |
| 35 | Electronic, electrical equipment, and office equipment | 870 | 484 | 3 | 55.7 | 0.3 |
| 36 | Motorized and other vehicles (including parts) | 571 | 367 | 77 | 64.2 | 13.5 |
| 40 | Miscellaneous manufactured products | 421 | 268 | 3 | 63.7 | 0.6 |
| 34 | Machinery | 417 | 320 | 6 | 76.7 | 1.5 |
| 30 | Textiles, leather, and articles of textiles or leather | 379 | 293 | 0.47 | 77.4 | 0.1 |
| 7 | Other prepared foodstuffs and fats and oils | 346 | 319 | 13 | 92.2 | 3.8 |
| 32 | Base metal in primary or semifinished forms | 286 | 242 | 26 | 84.7 | 9.1 |
| 24 | Plastics and rubber | 279 | 219 | 21 | 78.5 | 7.6 |
| 29 | Printed products | 260 | 178 | 0.27 | 68.4 | 0.1 |
| 41 | Mixed freight | 230 | 219 | 95 | ||
| By tonnage (millions) | ||||||
| All commodities | 11,090 | 7,701 | 1,550 | 69.4 | 14 | |
| 12 | Gravel and crushed stone | 1,815 | 1,672 | 51 | 92.1 | 2.8 |
| 15 | Coal | 1,217 | 217 | 687 | 17.8 | 56.5 |
| 17 | Gasoline and aviation turbine fuel | 963 | 518 | 5 | 53.8 | 0.6 |
| 31 | Nonmetallic mineral products | 910 | 860 | 23 | 94.5 | 2.5 |
| 2 | Cereal grains | 490 | 189 | 142 | 38.5 | 29.1 |
| 18 | Fuel oils | 482 | 244 | 7 | 50.7 | 1.4 |
| 19 | Coal and petroleum products, n.e.c. | 475 | 281 | 62 | 59.2 | 13 |
| 11 | Natural sands | 443 | 413 | 11 | 93.4 | 2.5 |
| 7 | Other prepared foodstuffs and fats and oils | 397 | 348 | 32 | 87.6 | 8.1 |
| 25 | Logs and other wood in the rough | 371 | 349 | 7 | 94 | 2 |
| By ton-miles (billions) | ||||||
| All commodities | 2,661 | 1,024 | 1,023 | 38.5 | 38.4 | |
| 15 | Coal | 542 | 9 | 439 | 1.7 | 81 |
| 2 | Cereal grains | 201 | 18 | 116 | 9.1 | 58 |
| 20 | Basic chemicals | 137 | 34 | 69 | 24.7 | 50.8 |
| 17 | Gasoline and aviation turbine fuel | 137 | 29 | 3 | 21.5 | 2.1 |
| 7 | Other prepared foodstuffs and fats and oils | 124 | 79 | 34 | 63.5 | 27 |
| 32 | Base metal in primary or semifinished forms | 117 | 68 | 36 | 57.5 | 30.9 |
| 26 | Wood products | 97 | 52 | 36 | 53.9 | 36.7 |
| 12 | Gravel and crushed stone | 93 | 58 | 11 | 62.8 | 11.8 |
| 31 | Nonmetallic mineral products | 91 | 64 | 14 | 69.7 | 15.4 |
| 27 | Pulp, newsprint, paper, and paperboard | 84 | 44 | 35 | 52.3 | 42.3 |
NOTE: = data do not meet publication standards because of sampling variability or other reasons; n.e.c. = not elsewhere classified; SCTG = Standard Classification of Transported Goods.
SOURCE: U.S. Department of Transportation, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 1997 Commodity Flow Survey, United States, EC97TCF-US (Washington, DC: 1999).