Table 8. Shipment Characteristics by Two-Digit Commodity and Mode of Transportation for Metropolitan Area of Origin: 2007

Table 8. Shipment Characteristics by Two-Digit Commodity and Mode of Transportation for Metropolitan Area of Origin: 2007

Estimates are based on data from the 2007 Commodity Flow Survey. Because of rounding, estimates may not be additive.

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All Commodities5

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 35,191 100 94,149 100 23,565 100 298 10.2 - 15.5 - 10.6 - 12.6
Single modes 33,058 93.9 87,961 93.4 20,289 86.1 177 11.1 1 17.1 2.2 12.9 3.3 11.8
Truck6 27,345 77.7 70,557 74.9 12,022 51 166 8.4 3 14.5 2.3 11 2.6 11.9
For-hire truck 13,863 39.4 28,702 30.5 7,306 31 403 8.1 5.8 15.2 5.3 7.9 3 10.8
Private truck 13,482 38.3 41,855 44.5 4,716 20 79 22.1 5.3 20.4 4.7 26.1 3.5 11.9
Rail 2,872 8.2 13,122 13.9 8,173 34.7 623 29.5 2 26.2 1.8 18.5 3.3 12.6
Air (incl truck and air) 55 0.2 1 - 2 - 1,570 34.7 0.1 31.1 - 33.1 - 11.3
Pipeline7 2,787 7.9 4,281 4.5 S S S 45.7 3.5 49.6 2.2 S S S
Multiple modes 1,795 5.1 5,544 5.9 3,190 13.5 819 12.1 1 24.7 1.9 25.4 3.2 7.7
Parcel, U.S.P.S. or courier 1,218 3.5 30 - 25 0.1 820 19.9 0.9 21.4 - 15.6 - 7.7
Truck and rail 510 1.4 5,486 5.8 3,127 13.3 749 26.8 0.3 25 1.9 26 3.2 18.3
Truck and water S S S S S S 2,097 S S S S S S 34.5
Other and unknown modes 337 1 644 0.7 86 0.4 S 21.1 0.3 48.3 0.5 49.4 0.2 S

SCTG2 01, Live animals and live fish

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S S S S S S S S S S S S S
Single modes S S S S S S S S S S S S S S
Truck6 S S S S S S S S S S S S S S
For-hire truck S S S S S S S S S S S S S S

SCTG2 02, Cereal grains

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 759 100 4,057 100 957 100 103 25.7 - 22.9 - 34.1 - 18.8
Single modes 759 100 4,057 100 957 100 103 25.7 - 22.9 - 34.1 - 18.8
Truck6 491 64.6 3,015 74.3 263 27.4 80 19.4 10.5 19.8 7.8 29.5 19.7 16.3
For-hire truck 401 52.8 2,515 62 225 23.5 88 26.8 10.3 26.6 8.9 36.9 17.3 16.7
Private truck 90 11.8 S S S S S 47.4 11.3 S S S S S
Rail 269 35.4 1,042 25.7 695 72.6 718 28.6 9.9 28.3 7.9 21.9 7.2 22.6

SCTG2 03, Other agricultural products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 94 100 591 100 155 100 191 35 - 46.3 - 44.5 - 43.1
Single modes 94 100 591 100 155 100 191 35 - 46.3 - 44.5 - 43.1
Truck6 94 100 591 100 155 100 191 35 - 46.3 - 44.5 - 43.1
For-hire truck 54 57.2 S S S S 194 41.9 18.8 S S S S 9.2
Private truck S S S S 118 75.9 S S S S S 48.6 9.9 S

SCTG2 04, Animal feed and products of animal origin, nec

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 796 100 2,990 100 434 100 S 28 - 32.5 - 31.1 - S
Single modes 752 94.5 2,901 97 382 87.9 S 31.3 8.7 34.4 9 37 8.8 S
Truck6 752 94.5 2,901 97 382 87.9 S 31.3 8.7 34.4 9 37 8.8 S
For-hire truck 321 40.4 1,380 46.1 256 59.1 S 43 15.3 47 15 42.6 13.2 S
Private truck 431 54.2 1,521 50.9 S S 36 32.6 16.4 41.8 18.4 S S 14.6
Multiple modes S S S S S S S S S S S S S S
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S
Truck and water S S S S S S S S S S S S S S
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 05, Meat, fish, seafood, and their preparations

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 2,849 100 2,608 100 837 100 S 34.5 - 47.9 - 38.3 - S
Single modes 2,700 94.8 2,568 98.4 778 92.9 S 31.6 1.8 48.5 0.9 34.4 2.5 S
Truck6 2,700 94.8 2,568 98.4 778 92.9 S 31.6 1.8 48.5 0.9 34.4 2.5 S
For-hire truck 1,157 40.6 830 31.8 339 40.5 625 16.1 13.7 30.3 16.7 22.4 15.8 18.8
Private truck S S S S S S S S S S S S S S
Multiple modes S S S S S S S S S S S S S S
Truck and rail S S S S S S S S S S S S S S
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 06, Milled grain products and preparations and bakery products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 147 100 438 100 254 100 S 34.3 - 40.8 - 42.7 - S
Single modes 130 88.5 388 88.7 208 81.9 456 24.8 5 32.8 4.9 32.4 7.6 12.3
Truck6 112 76.3 326 74.4 144 56.6 432 21.5 8.6 29.8 9.3 26.1 16.4 15.4
For-hire truck 106 72.3 318 72.6 140 55.2 432 25.4 8 32 8 28.1 14.2 20.7
Private truck S S S S S S S S S S S S S S
Rail 18 12.1 63 14.3 S S 899 42.1 3.9 39.1 2.8 S S 24.2
Multiple modes S S S S S S 928 S S S S S S -
Truck and rail S S S S S S 928 S S S S S S -
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 07, Other prepared foodstuffs and fats and oils

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 426 100 602 100 69 100 S 16.2 - 40.4 - 30.3 - S
Single modes 286 67.2 221 36.7 44 63.9 S 12 9.9 16.9 16.8 28.7 10 S
Truck6 286 67.2 221 36.6 44 63.8 S 11.9 9.9 17 16.8 28.7 10 S
For-hire truck S S S S 35 50.2 745 S S S S 27.1 15.8 14.4
Private truck S S S S S S 36 S S S S S S 14.5
Air (incl truck and air) S S S S S S 766 S S S S S S 29.1
Multiple modes 29 6.8 12 2 21 31.3 998 40.3 8.5 33.8 12.1 35.1 10.9 34.2
Parcel, U.S.P.S. or courier S S S S S S 925 S S S S S S 28.9
Truck and rail 28 6.6 12 2 21 31.1 1,781 28 11.8 11.7 17.1 14 11.7 3.8
Other and unknown modes S S S S S S 13 S S S S S S 19.5

SCTG2 08, Alcoholic beverages

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 151 100 S S 6 100 64 43.8 - S S 49.1 - 39.7
Single modes 151 100 S S 6 100 64 43.8 - S S 49.1 - 39.7
Truck6 151 100 S S 6 100 64 43.8 - S S 49.1 - 39.7
For-hire truck S S S S S S 135 S S S S S S 5.1
Private truck 119 78.6 91 93.3 5 85.4 57 18.6 16.4 18.6 5.3 15.7 11.5 4.8

SCTG2 09, Tobacco products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 147 100 4 100 1 100 135 26.4 - 34.9 - 27.3 - 50
Single modes 147 100 4 100 1 100 135 26.4 - 34.9 - 27.3 - 50
Truck6 147 100 4 100 1 100 135 26.4 - 34.9 - 27.3 - 50
For-hire truck S S S S S S 432 S S S S S S 5.3
Private truck S S S S S S 119 S S S S S S 18.3

SCTG2 10, Calcareous monumental or building stone

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 41 100 296 100 193 100 600 28.1 - 29.1 - 38.5 - 35.6
Single modes 36 88.1 273 92.2 158 81.6 531 28.7 9.3 33.6 9.9 37.8 10 35.9
Truck6 36 88.1 273 92.2 158 81.6 531 28.7 9.3 33.6 9.9 37.8 10 35.9
For-hire truck 30 71.9 207 69.8 152 78.4 729 34 11.3 30.5 11.6 41.1 7.9 21.5
Private truck S S S S S S S S S S S S S S
Multiple modes S S 23 7.8 36 18.4 1,558 S S 27.8 13.6 44.1 12 24.7
Truck and rail S S 23 7.8 36 18.4 1,558 S S 27.8 13.6 44.1 12 24.7

SCTG2 11, Natural sands

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 129 100 6,936 100 1,086 100 115 23.7 - 29.2 - 34.3 - 36.3
Single modes 118 91.5 6,070 87.5 884 81.4 110 25.2 2.8 30.5 5 36.6 5.6 36
Truck6 107 82.6 5,427 78.2 533 49.1 96 26.9 5.8 34.1 7.1 31.2 8.7 37
For-hire truck 70 54.1 1,656 23.9 310 28.5 186 33.9 7.9 37.1 11.8 46 9.3 25
Private truck 37 28.5 3,770 54.4 223 20.5 S 29.6 14.1 32.6 11.2 39.1 13.5 S
Rail 11 8.9 643 9.3 S S 462 33 10.4 35.9 12.3 S S 26.6
Multiple modes 11 8.5 S S 203 18.6 S 28.1 3.5 S S 32.4 6.4 S
Truck and rail 11 8.5 S S 203 18.6 S 28.1 3.5 S S 32.4 6.4 S

SCTG2 12, Gravel and crushed stone

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 167 100 29,771 100 4,617 100 97 19.6 - 22.5 - 34.4 - 35.4
Single modes 143 85.7 26,149 87.8 2,992 64.8 92 22.8 5.1 26.4 4.8 33.7 8.9 34.2
Truck6 118 70.5 21,671 72.8 1,925 41.7 87 19.8 8.1 22 7.5 29.6 13.5 36.3
For-hire truck 40 24 7,052 23.7 S S S 32 10.5 34.5 10.5 S S S
Private truck 78 46.5 14,619 49.1 1,154 25 75 20 10.6 21.9 10.3 25.3 15.6 8.3
Rail 25 15.2 S S S S 198 46.3 6.9 S S S S 37.1
Multiple modes 23 13.9 3,509 11.8 S S 290 38.3 6.9 26.3 6.7 S S 36.4
Truck and rail 23 13.9 3,509 11.8 S S 290 38.3 6.9 26.3 6.7 S S 36.4
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 13, Nonmetallic minerals nec

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S 5,238 100 1,577 100 278 S S 35.3 - 28.2 - 33.2
Single modes S S 5,006 95.6 1,404 89 266 S S 37.5 3.2 27.7 4.1 30.7
Truck6 S S 4,204 80.3 962 61 253 S S 48.6 15.7 46.6 15.1 32.3
For-hire truck 242 82.9 3,756 71.7 862 54.6 259 49.9 16 49.7 13.5 45.7 13.3 31.8
Private truck S S S S S S S S S S S S S S
Rail S S 802 15.3 442 28 552 S S 28.7 18.4 26.9 16.9 4.3
Multiple modes 3 1 232 4.4 S S 852 21.2 5.8 37.6 4.3 S S 21.6
Truck and rail 3 1 232 4.4 S S 852 21.2 5.8 37.6 4.3 S S 21.6

SCTG2 15, Nonagglomerated bituminous coal

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 43 100 1,495 100 S S 77 20 - 15.8 - S S 33.6
Single modes 43 100 1,495 100 S S 77 20 - 15.8 - S S 33.6
Truck6 39 90 1,363 91.2 80 68.5 57 14.2 5.9 8.8 5.4 41.4 13.5 33.2
For-hire truck 39 90 1,363 91.2 80 68.5 57 14.2 5.9 8.8 5.4 41.4 13.5 33.2
Rail S S S S S S S S S S S S S S
All modes 3,845 100 5,425 100 447 100 52 32.1 - 31.9 - 41.6 - 29.1
Single modes 3,833 99.7 5,407 99.7 447 99.9 65 32 0.1 31.8 0.1 41.6 - 22.6
Truck6 2,948 76.7 4,032 74.3 401 89.8 65 30 7.9 31.5 8.9 44.7 6.1 22.6
For-hire truck S S S S S S S S S S S S S S
Private truck 2,914 75.8 3,998 73.7 395 88.3 65 30.8 10.9 32.1 10.7 45.8 11.6 22.5
Pipeline7 886 23 1,376 25.4 S S S 43.2 14.4 35.1 16.6 S S S
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 18, Fuel oils

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 4,229 100 6,973 100 593 100 46 39.2 - 39.2 - 40.8 - 40.5
Single modes 4,223 99.9 6,961 99.8 593 100 58 39.3 0.1 39.3 0.2 40.8 - 31.1
Truck6 2,502 59.2 4,056 58.2 545 91.9 58 28.8 14.1 29.8 14.3 42.2 3.5 31.1
For-hire truck S S S S 3 0.6 S S S S S 24.3 1.6 S
Private truck 2,482 58.7 4,026 57.7 542 91.4 58 28.7 14 29.7 14.3 42.4 3.5 31.2
Pipeline7 S S S S S S S S S S S S S S
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 19, Coal and petroleum products, nec

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 2,789 100 5,999 100 3,187 100 121 39.5 - 36.3 - 40.7 - 18.3
Single modes 2,778 99.6 5,997 100 3,186 100 142 39.4 0.3 36.3 - 40.7 0.1 14.7
Truck6 1,244 44.6 3,551 59.2 867 27.2 105 31.4 10.9 34 10.7 37.7 17.2 21.1
For-hire truck 106 3.8 311 5.2 107 3.4 358 38 12.9 24.9 13.4 33 15.4 21.8
Private truck 1,138 40.8 3,239 54 760 23.8 96 33.8 6.5 35.5 10.2 41.4 11.3 25.3
Rail S S 2,445 40.8 2,320 72.8 801 S S 34.6 11.1 36.8 13.6 14.7
Pipeline7 S S S S S S S S S S S S S S
Multiple modes S S S S S S S S S S S S S S
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S
Other and unknown modes S S S S S S 16 S S S S S S 10

SCTG2 20, Basic chemicals

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 567 100 S S 561 100 S 32 - S S 47 - S
Single modes 549 96.8 S S 546 97.2 S 32.7 2.1 S S 48.5 5.1 S
Truck6 466 82.1 S S S S S 30.7 3.4 S S S S S
For-hire truck 254 44.9 S S S S 352 38.4 11.7 S S S S 32.7
Private truck 211 37.3 161 12.2 17 3.1 82 42.2 15.3 38.1 19.8 47.8 15.1 31
Rail 83 14.6 303 23 288 51.3 876 35.1 15.8 41 15.9 31.2 12.4 17.8
Multiple modes 18 3.2 S S S S S 43.3 4.2 S S S S S
Parcel, U.S.P.S. or courier S S S S - - S S S S S 48.5 - S
Truck and rail 9 1.7 22 1.7 S S 385 48.9 7.7 46.1 8.9 S S 43.5
Truck and water S S S S S S S S S S S S S S

SCTG2 21, Pharmaceutical products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S S S S S S S S S S S S S
Single modes S S S S S S S S S S S S S S
Truck6 S S S S S S S S S S S S S S
For-hire truck S S S S S S S S S S S S S S
Private truck S S S S S S S S S S S S S S
Multiple modes 19 73.1 S S S S 930 20.6 19.5 S S S S 1.4
Parcel, U.S.P.S. or courier 19 73.1 S S S S 930 20.6 19.5 S S S S 1.4

SCTG2 22, Fertilizers

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 978 100 3,441 100 1,676 100 S 20.9 - 14.7 - 20.4 - S
Single modes 932 95.3 3,256 94.6 1,439 85.9 S 22 2.7 15.4 2.2 22.8 5.6 S
Truck6 543 55.6 1,905 55.4 316 18.8 S 22.9 8.4 17.4 7.4 22.1 9.8 S
For-hire truck 356 36.4 1,428 41.5 295 17.6 204 32.2 6.4 23.5 7.1 21.1 5.4 17.8
Private truck S S S S 21 1.2 S S S S S 37.3 18.1 S
Rail 388 39.7 1,351 39.3 1,123 67 809 31.6 7.6 21.3 6.9 24.7 7.2 12.3
Multiple modes 46 4.7 185 5.4 237 14.1 1,289 36.3 5.1 31.7 3.8 39.6 9.6 13.2
Truck and rail 46 4.7 185 5.4 237 14.1 1,289 36.3 5.1 31.7 3.8 39.6 9.6 13.2

SCTG2 23, Chemical products and preparations, nec

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 326 100 169 100 46 100 195 28.7 - 32.8 - 44.5 - 48.5
Single modes 321 98.7 167 98.9 45 96.4 S 29.4 7.7 33.5 9.7 46.9 10.4 S
Truck6 321 98.7 167 98.9 45 96.4 S 29.4 7.7 33.5 9.7 46.9 10.4 S
For-hire truck 111 34 S S S S 811 48.1 13.1 S S S S 11.8
Private truck 211 64.7 119 70.7 9 19.1 54 30.9 11 40.6 12.9 41.7 17.4 19
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S S S S S 927 S S S S S S 8.8
Parcel, U.S.P.S. or courier S S S S S S 927 S S S S S S 8.8
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 24, Plastics and rubber

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 2,371 100 746 100 673 100 368 25.5 - 26.3 - 28.1 - 24.3
Single modes 2,316 97.7 726 97.3 649 96.3 343 26 1.7 27 2 29.3 3.4 28.2
Truck6 2,130 89.8 663 88.9 563 83.6 319 23.3 3.4 23.4 3.6 26.1 5.7 30.8
For-hire truck 1,973 83.2 617 82.7 539 80.1 722 25.4 4.9 25.2 4.1 27.6 6 9
Private truck S S S S S S S S S S S S S S
Rail S S S S S S 1,372 S S S S S S 17.9
Air (incl truck and air) - - S S S S 1,446 42.2 0.1 S S S S 15.7
Multiple modes 47 2 S S S S 466 48.6 1.9 S S S S 48
Parcel, U.S.P.S. or courier S S 1 0.1 - 0.1 S S S 46.2 0.1 46.4 0.1 S
Truck and rail 35 1.5 14 1.9 23 3.4 1,517 43.4 4.7 38.5 7.5 45.5 12.7 15.5
Truck and water S S S S S S S S S S S S S S
Other and unknown modes 8 0.3 5 0.6 1 0.1 S 34.6 0.6 36.9 1 18 0.1 S

SCTG2 25, Logs and other wood in the rough

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 30 100 115 100 56 100 603 34 - 33.4 - 33.9 - 23.7
Single modes 30 99.8 115 100 56 100 485 8.1 0.1 2.7 - 6.8 - 5.7
Truck6 30 99.8 115 100 56 100 485 8.1 0.1 2.7 - 6.8 - 5.7
For-hire truck 30 99.8 115 100 56 100 485 8.1 0.1 2.7 - 6.8 - 5.7
Multiple modes S S S S S S S S S S S S S S
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S

SCTG2 26, Wood products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 198 100 618 100 235 100 387 31.2 - 38.2 - 41.6 - 22.8
Single modes 190 96.4 600 97 229 97.3 291 31.6 3 38.1 3.7 41.2 3.1 21.1
Truck6 179 90.8 494 79.9 194 82.6 263 32.9 7.4 37.3 8.1 41.1 6.9 20.5
For-hire truck 87 43.8 345 55.8 175 74.3 525 15.4 14.8 19.6 4.2 18 2.3 15.7
Private truck 93 47 149 24.2 S S 87 44.7 14.3 32.3 18.3 S S 18.9
Rail 11 5.6 105 17 34 14.7 826 18.6 8.1 35.7 6.2 29.3 4.7 40.6
Multiple modes S S S S S S 1,212 S S S S S S 34
Parcel, U.S.P.S. or courier - 0.2 S S S S 1,291 38.1 0.2 S S S S 2.1
Truck and rail 7 3.4 S S S S 210 39.2 17.2 S S S S 46.9
Other and unknown modes - - S S S S S 40.8 0.6 S S S S S

SCTG2 27, Pulp, newsprint, paper, and paperboard

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 1,051 100 2,959 100 2,461 100 693 39.4 - 35.1 - 37 - 8.5
Single modes 912 86.7 2,522 85.2 1,909 77.6 590 39.4 3.4 35.2 3.3 38.4 5.1 8.9
Truck6 489 46.5 1,355 45.8 791 32.2 499 25.6 12.3 26.2 12.6 26.9 14.4 7.6
For-hire truck 467 44.4 1,304 44.1 767 31.2 584 25 12.7 26.1 13 27.2 14.6 6.6
Private truck S S S S S S S S S S S S S S
Rail 423 40.2 1,167 39.4 1,118 45.4 956 49.9 12.3 40.6 12.8 40.2 13.5 31.7
Multiple modes 128 12.2 412 13.9 512 20.8 1,374 44.3 3.9 36.5 3.6 35 5.4 12
Parcel, U.S.P.S. or courier S S S S S S 862 S S S S S S 13.1
Truck and rail 128 12.1 412 13.9 512 20.8 1,383 39.4 4.3 30 3.3 28 5.2 12.5
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 28, Paper or paperboard articles

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 708 100 359 100 222 100 388 26.9 - 26.1 - 34.8 - 20.5
Single modes 659 93.1 330 91.9 178 80.1 502 27 4.2 24.9 3.1 32.5 5.5 15
Truck6 659 93.1 330 91.9 178 80.1 502 27 4.2 24.9 3.1 32.5 5.5 15
For-hire truck 557 78.6 290 80.9 161 72.6 564 28.7 8.2 26 6.6 34.2 7.4 15.4
Private truck S S 40 11.1 S S S S S 49.9 9.9 S S S
Multiple modes 43 6.1 27 7.4 43 19.2 S 36.3 8.4 39.3 5.5 44.8 6.8 S
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S
Truck and rail 32 4.5 25 6.9 43 19.2 1,705 41.2 3.1 21 3.7 20.7 7.4 0.2
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 29, Printed products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 164 100 88 100 75 100 S 26.9 - 33.6 - 41.8 - S
Single modes 107 65.3 86 98.2 74 98.9 S 24.7 17.1 23.7 1.6 35 0.7 S
Truck6 107 65.3 86 98.2 74 98.9 S 24.7 17.1 23.7 1.6 35 0.7 S
For-hire truck S S 81 92.9 74 98.7 913 S S 15.7 3.5 25.5 0.9 10.5
Private truck S S S S S S S S S S S S S S
Multiple modes S S S S S S S S S S S S S S
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S

SCTG2 30, Textiles, leather, and articles of textiles or leather

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S S S S S 1,004 S S S S S S 6.7
Single modes S S S S S S 828 S S S S S S 34.5
Truck6 S S S S S S 828 S S S S S S 34.5
For-hire truck S S S S S S 1,215 S S S S S S 24.5
Private truck S S S S S S S S S S S S S S
Multiple modes 102 36.7 S S 3 34.1 1,018 33.2 16.9 S S 44.7 16.9 6.8
Parcel, U.S.P.S. or courier 102 36.7 S S 3 34.1 1,018 33.2 16.9 S S 44.7 16.9 6.8

SCTG2 31, Nonmetallic mineral products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 877 100 7,562 100 1,822 100 166 24.7 - 22 - 33.2 - 24.5
Single modes 860 98.1 7,480 98.9 1,715 94.1 163 24.4 0.8 22 0.6 31 2.1 24.3
Truck6 774 88.3 6,955 92 1,176 64.5 151 23.2 3.2 22 2.4 27.3 8.3 25
For-hire truck 459 52.4 2,288 30.3 902 49.5 395 28.1 10.1 27.6 7.7 31.4 9.9 15
Private truck 315 35.9 4,667 61.7 273 15 60 22.1 12.4 24.3 8.4 25.8 14.3 25.6
Rail 86 9.8 525 6.9 539 29.6 1,018 38.6 3 28.4 2.5 35.3 5.5 15.2
Multiple modes S S S S S S 1,326 S S S S S S 36.8
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S
Truck and rail S S S S S S 1,403 S S S S S S 20.4
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 32, Base metal in prim. or semifin. forms & in finished basic shapes

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 639 100 446 100 233 100 429 35.5 - 36.6 - 46 - 18.6
Single modes 552 86.5 433 97.1 204 87.6 363 32 4.3 36.4 1 44 3.4 17.9
Truck6 538 84.1 429 96.2 196 83.9 354 31.6 5.1 36.4 1.3 42.8 4.5 17.5
For-hire truck 396 62 262 58.7 152 65.1 450 38.4 12 43.7 10 48.7 9.9 14.8
Private truck 142 22.2 167 37.5 44 18.8 166 47.8 15 45.1 11.6 48.5 13.4 15.5
Rail S S S S S S S S S S S S S S
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S S S S S 900 S S S S S S 37.6
Parcel, U.S.P.S. or courier S S S S S S 851 S S S S S S 19.5
Truck and rail 11 1.7 11 2.5 27 11.5 2,380 24.8 3.2 32.1 3.1 31.2 5.1 -
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 33, Articles of base metal

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 1,010 100 368 100 142 100 389 16.9 - 16.7 - 16.5 - 15.1
Single modes 927 91.8 361 98 138 96.7 219 14.9 2.9 17.7 2.3 18.1 3.8 20
Truck6 927 91.7 361 98 138 96.7 219 15 3 17.7 2.3 18.1 3.8 20.1
For-hire truck 642 63.6 223 60.5 105 73.8 362 24.2 9.5 27.3 10.2 25.9 9.4 22.5
Private truck 285 28.2 138 37.5 33 22.9 S 26.6 10.3 29.3 10.6 40.1 9.7 S
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S S S S S 545 S S S S S S 18.6
Parcel, U.S.P.S. or courier S S S S S S 545 S S S S S S 18.6
Other and unknown modes S S 4 1.1 S S S S S 40.7 1.9 S S S

SCTG2 34, Machinery

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 2,700 100 213 100 146 100 650 20.1 - 18 - 16.9 - 14
Single modes 2,465 91.3 204 95.8 134 91.8 444 23.6 8.2 19.1 4.7 17.7 8.6 24
Truck6 2,461 91.2 204 95.7 134 91.5 407 23.6 8.1 19.2 4.7 17.7 8.5 26.7
For-hire truck 2,117 78.4 167 78.1 128 87.6 755 28.6 10.2 23.2 9.9 18.6 9.4 14.5
Private truck 345 12.8 37 17.5 6 3.9 67 46.1 6.4 45.6 7.4 32.9 2.1 49.5
Air (incl truck and air) 3 0.1 S S S S 2,284 49.9 0.2 S S S S 34.5
Multiple modes S S 7 3.2 9 6.1 847 S S 36.1 4.4 38.3 8.5 13.8
Parcel, U.S.P.S. or courier S S 3 1.2 3 1.8 844 S S 34.8 4.4 30.8 8.8 13.3
Truck and water 49 1.8 4 2 6 4.3 2,853 40.6 3.5 43.5 4.7 31 6.4 33.7
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 35, Electronic & other electrical equip & components & office equip

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 1,396 100 63 100 36 100 821 25.6 - 27.8 - 27 - 14.5
Single modes 1,013 72.5 59 94.1 33 90.9 424 38.3 11.9 29.6 6.7 29.3 10.3 34.3
Truck6 997 71.4 59 93.5 33 89.5 393 38.9 12.1 29.7 6.6 29.3 10.1 36.9
For-hire truck 917 65.6 51 81.6 32 88.6 921 41 10.5 33.1 8.3 28 4.9 6.7
Private truck S S S S S S S S S S S S S S
Air (incl truck and air) S S S S S S 1,077 S S S S S S 17.4
Multiple modes 380 27.2 3 5.4 3 8.8 1,036 38.5 12 30 6.6 25.3 10.3 9.6
Parcel, U.S.P.S. or courier 380 27.2 3 5.4 3 8.8 1,036 38.5 12 30 6.6 25.3 10.3 9.6
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 36, Motorized and other vehicles (including parts)

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 445 100 46 100 34 100 918 40.9 - 47.8 - 39.6 - 9.6
Single modes S S S S 29 86.7 804 S S S S 42.8 6.1 11
Truck6 318 71.4 S S 29 85.8 716 49.9 9 S S 42.4 6 12.6
For-hire truck 210 47.2 S S 20 58.3 861 49 9.8 S S 46.8 9.2 10.8
Private truck 108 24.2 17 37.6 9 27.5 282 49.8 9.4 36.4 15.3 42.1 11.7 46.7
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S S S 1 4.4 982 S S S S 44.7 2.6 11.9
Parcel, U.S.P.S. or courier S S S S 1 4.4 982 S S S S 44.7 2.6 11.9
Other and unknown modes S S S S S S 678 S S S S S S 46.8

SCTG2 37, Transportation equipment, nec

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S S S S S 762 S S S S S S 39.4
Single modes S S S S S S 719 S S S S S S 46.4
Truck6 S S S S S S 698 S S S S S S 39.6
For-hire truck S S S S S S S S S S S S S S
Private truck S S S S S S 691 S S S S S S 39.7
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S S S S S S S S S S S S S
Parcel, U.S.P.S. or courier S S S S S S S S S S S S S S

SCTG2 38, Precision instruments and apparatus

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 162 100 3 100 3 100 861 37.5 - 26.5 - 28.5 - 25.8
Single modes S S 2 48.9 1 45.3 S S S 43.8 16.7 40.5 18.1 S
Truck6 S S 2 48.9 1 45.3 S S S 41.1 17.6 37.4 19.8 S
For-hire truck S S 1 37.6 1 44.9 S S S 35.2 19.8 37.1 19.8 S
Private truck S S S S S S S S S S S S S S
Air (incl truck and air) S S S S S S 984 S S S S S S 45.2
Multiple modes S S 2 51.1 S S 973 S S 35.2 17.4 S S 10.9
Parcel, U.S.P.S. or courier S S 2 51.1 S S 973 S S 35.2 17.4 S S 10.9

SCTG2 39, Furniture, mattresses & mattress supports, lamps, lighting

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 320 100 44 100 18 100 366 30.2 - 29.1 - 29.5 - 29.5
Single modes 316 98.9 44 99.2 18 98.2 309 30.1 0.8 29 1.9 29.4 1.9 36.8
Truck6 316 98.9 44 99.2 18 98.2 309 30.1 0.8 29 1.9 29.4 1.9 36.8
For-hire truck 158 49.4 20 44.4 12 64.9 592 33.8 14.6 36.4 14.6 37 9.7 13.4
Private truck 158 49.6 24 54.8 6 33.3 S 32.8 15.4 31.9 14.5 22.1 18.8 S
Multiple modes 3 1.1 - 0.8 S S 662 31.6 1.2 46.1 2.9 S S 12.5
Parcel, U.S.P.S. or courier 3 1 - 0.8 - 1.2 649 30.8 1.2 44.2 2.9 44.2 2.9 13
Truck and water S S S S S S S S S S S S S S

SCTG2 40, Miscellaneous manufactured products

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 826 100 363 100 212 100 704 34 - 27.6 - 43.2 - 13.1
Single modes 662 80.1 354 97.5 203 95.8 364 33.8 4.5 27.8 2.3 44 4.1 31.1
Truck6 656 79.5 353 97.4 203 95.7 356 34.2 5 27.8 2.5 44.1 4.6 29.8
For-hire truck 327 39.6 165 45.5 81 38 391 32.5 7.8 31.3 11.6 30.4 12.4 37.8
Private truck S S S S S S 286 S S S S S S 26
Air (incl truck and air) S S S S S S 821 S S S S S S 29.2
Multiple modes 141 17.1 6 1.7 5 2.4 875 44.8 4.3 35.1 0.5 36.6 1 7.9
Parcel, U.S.P.S. or courier 141 17.1 6 1.7 5 2.4 875 44.8 4.3 35.1 0.5 36.6 1 7.9
Other and unknown modes 23 2.8 3 0.8 4 1.8 1,017 48.1 6.2 42.1 5.6 45.9 10 22.9

SCTG2 41, Waste and scrap

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S S S S S S S S S S S S S
Single modes S S S S S S S S S S S S S S
Truck6 S S S S S S S S S S S S S S
For-hire truck S S S S S S S S S S S S S S
Private truck S S S S S S S S S S S S S S

SCTG2 43, Mixed freight

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes 2,774 100 1,142 100 251 100 192 21.2 - 28.9 - 24.8 - 39.7
Single modes 2,764 99.6 1,141 99.9 251 99.8 171 21.3 0.5 28.9 0.3 24.8 0.8 44.7
Truck6 2,764 99.6 1,141 99.9 251 99.8 171 21.3 0.5 28.9 0.3 24.8 0.8 44.7
For-hire truck 1,230 44.3 272 23.8 103 40.8 543 20.5 8.8 31.9 10.7 32.1 9.1 18.6
Private truck 1,534 55.3 869 76.1 148 59 131 26.6 9.2 31.6 10 24.3 9.1 40.1
Multiple modes 10 0.4 1 0.1 - 0.2 650 38 0.6 46.4 0.4 38.8 1.1 17.9
Parcel, U.S.P.S. or courier 10 0.4 1 0.1 - 0.2 650 38 0.6 46.4 0.4 38.8 1.1 17.9
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 99, Commodity Unknown

Mode of transportation Value Tons Ton-miles3 Average miles
per shipment
Value Tons Ton-miles Average miles per shipment CV
2007
(million $)
Percent of total 2007
(thousands)
Percent of total 2007
(millions)
Percent of
total
CV4 Standard Error of % CV Standard Error of % CV Standard Error of %
All modes S S S S S S S S S S S S S S
Single modes S S S S S S S S S S S S S S
Truck6 S S S S S S S S S S S S S S
For-hire truck S S S S S S S S S S S S S S
Private truck S S S S S S S S S S S S S S

KEY: S = Estimate does not meet publication standards because of high sampling variability or poor response quality. - = Zero or Less than half the unit shown; thus, it has been rounded to zero.

1 Commodity Flow Survey (CFS) geographic areas were drawn from a subset of Combined Statistical Areas (CSAs) and Metropolitan Statistical Areas (MeSAs) as defined by the Office of Management and Budget (OMB). However, CFS metropolitan areas are divided into their state parts when they include more than one state. In addition, the CFS also utilizes a unique geography referred to as, "remainder of state," to represent those areas of a state not contained within a separately published metropolitan area for the CFS (as opposed to not part of any Core-Based Statistical Area (CBSA) as defined by OMB). Because of the differences in the CFS geography, as compared to OMB defined geography, caution should be exercised when comparing CFS estimates to other estimates of similar geography.
2 Standard Classification of Transported Goods.
3 Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.
4 Coefficient of Variation.
5 Estimates exclude shipments of crude petroleum (SCTG 16).
6 "Truck" as a single mode includes any shipment that was made by private truck only, by for-hire truck only, or by a combination of private and for-hire truck.
7 Estimates for pipeline exclude shipments of crude petroleum.

NOTES: Value-of-shipment estimates are reported in current prices. Estimated measures of sampling variability for each estimate known as coefficients of variation (CV) are also provided in these tables. More information on sampling error, confidentiality protection, nonsampling error, sample design, and definitions may be found at http://www.bts.gov/publications/commodity_flow_survey/.
Rows are not shown if all cells for that particular row have no value. For example, Orlando-Deltona-Daytona Beach, FL by Alcoholic Beverages (08) by Air has no data for any cell therefore the entire row is not shown. Also, two-digit commodities are not present if there is no such data for an entire commodity by area. For example, Pittsburgh-New Castle, PA by Cereal Grains (02) has no data for any mode therefore the entire commodity is not shown.

SOURCE: U.S. Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics and U.S. Department of Commerce, U.S. Census Bureau, 2007 Economic Census: Transportation Commodity Flow Survey, December 2009.