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 72,107 100 52,343 100 8,706 100 403 12.3 - 7.4 - 9.7 - 13.2
Single modes 51,984 72.1 49,231 94.1 7,619 87.5 208 14.3 7.2 6.5 1.6 9.3 2.7 17.4
Truck6 50,128 69.5 45,939 87.8 5,983 68.7 145 15 7.2 8.2 3.3 9.3 5.4 11.5
For-hire truck 34,580 48 25,820 49.3 4,589 52.7 325 21.7 6.2 12.7 4.8 9.9 4.6 10.2
Private truck 15,548 21.6 20,120 38.4 1,394 16 53 12.5 3.7 12.5 4 10.2 1.3 8.4
Rail 1,266 1.8 913 1.7 540 6.2 636 29.8 0.6 26.5 0.4 23.5 1.3 22.2
Water 150 0.2 S S S S 396 33.2 0.1 S S S S 17.6
Shallow draft 150 0.2 S S S S 396 33.2 0.1 S S S S 17.6
Air (incl truck and air) 440 0.6 11 - 9 0.1 983 36.7 0.3 34.5 - 35.6 0.1 6.5
Multiple modes 5,925 8.2 1,195 2.3 1,040 11.9 722 14.8 2.2 22.6 0.4 29.5 2.8 5.3
Parcel, U.S.P.S. or courier 3,625 5 91 0.2 51 0.6 721 17.8 1.4 18.4 - 20.3 0.2 5.4
Truck and rail 2,251 3.1 987 1.9 933 10.7 1,019 34.2 1.4 27.1 0.4 33.3 2.9 12.6
Truck and water 45 0.1 S S S S 2,263 43.1 0.1 S S S S 24.8
Rail and water S S S S S S S S S S S S S S
Other and unknown modes S S S S 47 0.5 S S S S S 46.4 0.3 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 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
Private truck S S S S S S S S S S S S S S

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 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
Private truck S S S S S S S S S S S S S 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 S S S S S S 168 S S S S S S 25
Single modes S S S S S S 168 S S S S S S 24.9
Truck6 S S S S S S 168 S S S S S S 24.9
For-hire truck S S S S S S 317 S S S S S S 26.1
Private truck S S S S S S 121 S S S S S S 12.3
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 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 628 S S S S S S 8.5
Private truck S S S S S S 140 S S S S S S 42.2
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 S S 216 100 122 100 481 S S 38.6 - 49 - 21.7
Single modes S S 216 99.9 122 99.9 479 S S 38.7 0.1 49.1 0.3 21.8
Truck6 S S 216 99.9 122 99.9 479 S S 38.7 0.1 49.1 0.3 21.8
For-hire truck S S 159 73.4 S S 744 S S 48.7 8.8 S S 12.3
Private truck 68 17.3 57 26.5 25 20.7 S 31.1 8.9 32.3 9.3 42.5 9.9 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
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 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 1,239 100 1,422 100 379 100 S 26.2 - 29.5 - 24.5 - S
Single modes 1,233 99.5 1,417 99.7 369 97.5 S 26.3 0.2 29.5 0.1 24.4 0.8 S
Truck6 1,233 99.5 1,417 99.7 369 97.5 S 26.3 0.2 29.5 0.1 24.4 0.8 S
For-hire truck 474 38.3 509 35.8 211 55.7 444 22.4 6.4 26.6 4.2 23.4 7 12.4
Private truck 759 61.3 908 63.9 158 41.8 S 35.7 6.5 31.8 4.2 35.4 6.8 S
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes 6 0.5 4 0.3 9 2.5 S 47.1 0.3 45.7 0.1 48.5 1 S
Parcel, U.S.P.S. or courier S S S S S S 616 S S S S S S 40
Truck and rail 2 0.2 4 0.3 9 2.4 2,405 45.1 0.1 40.6 0.1 38.1 1.5 3.6
Truck and water S S S S S S S S S S S S S S
Rail 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 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 2,118 100 702 100 429 100 S 30.2 - 32.1 - 30.7 - S
Single modes 1,853 87.5 632 90 344 80.3 S 29.7 4.9 33.1 4.2 29.3 5.9 S
Truck6 1,695 80 585 83.3 301 70.2 S 31.7 5.4 34.3 4.6 31.2 6.9 S
For-hire truck 1,223 57.7 380 54.2 278 64.9 769 35.4 5.6 30.5 6.2 23.8 5 7.4
Private truck 472 22.3 205 29.2 23 5.3 S 32.3 14.5 35.9 13.5 31.7 17.3 S
Rail 158 7.5 47 6.6 44 10.2 933 30.6 8.1 24 6.1 22.2 11.6 14.7
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 84 19.7 1,373 S S S S 45.3 7.4 16.4
Parcel, U.S.P.S. or courier S S S S S S 1,540 S S S S S S 37.7
Truck and rail S S S S S S 1,028 S S S S S S 34.9
Truck and water S S S S S S S S S S S S S S

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 319 100 13 100 2 100 S 34.5 - 29.7 - 30.1 - S
Single modes 312 97.9 13 97 2 92.7 S 35.5 1.9 30.5 1.7 30.1 2.6 S
Truck6 312 97.9 13 97 2 92.7 S 35.5 1.9 30.5 1.7 30.1 2.6 S
For-hire truck S S 6 47.7 1 70.6 352 S S 25.1 19.9 16.3 10.1 6.7
Private truck 244 76.5 6 49.3 S S 44 43.2 13.6 45.9 18.1 S S 15.4
Multiple modes 7 2.1 - 3 - 7.3 460 32.7 4 25.3 3.1 39.6 3.6 9.7
Parcel, U.S.P.S. or courier 7 2.1 - 3 - 7.3 460 32.7 4 25.3 3.1 39.6 3.6 9.7

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 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 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 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 11 58.5 1,960 62.5 S S 31 44.1 15.2 44.7 13.9 S S 23.7

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 109 100 12,637 100 S S 15 30 - 25.2 - S S 10.8
Single modes 108 99.3 12,504 99 S S 15 30.2 0.5 25.2 0.6 S S 10.9
Truck6 101 93.1 10,922 86.4 S S 15 33.4 7.1 28.9 9 S S 11.5
For-hire truck 52 47.3 5,622 44.5 106 11.2 14 44.3 10.9 43.3 10.9 42.5 16.7 17.6
Private truck 50 45.7 5,300 41.9 95 10.1 15 45.7 10.1 37.5 10.5 35.1 18 8.5
Water S S S S S S S S S S S S S S
Shallow draft 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 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 52 S S S S S S 44.9

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 39 100 S S 12 100 223 34.3 - S S 40.2 - 42
Single modes 33 84.3 S S 9 75.9 187 34.1 6.1 S S 38.7 8.5 49.2
Truck6 33 84.3 S S 9 75.9 187 34.1 6.1 S S 38.7 8.5 49.2
For-hire truck 24 62.5 S S 8 63.9 S 38.9 13.9 S S 39.6 11.8 S
Private truck S S S S S S 91 S S S S S S 23.3
Multiple modes 6 15.7 S S S S 1,079 49.8 11.9 S S S S 33
Parcel, U.S.P.S. or courier - 0.1 - - - - 443 6.9 - 33 - 48.2 - 22.6
Truck and rail 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
Rail and water S S S S S S S S S S S S S S

SCTG2 14, Metallic ores and concentrates

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 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 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 183 100 4,192 100 848 100 202 5 - 4.7 - 4.4 - 2.1
Single modes 175 95.7 4,070 97.1 834 98.3 204 6.3 4.2 6.4 3 5.2 1.8 2.9
Truck6 175 95.7 4,070 97.1 834 98.3 204 6.3 4.2 6.4 3 5.2 1.8 2.9
For-hire truck 137 74.9 3,122 74.5 634 74.8 203 12 6.5 8.8 5.1 6.6 4.7 4.6
Private truck 38 20.8 948 22.6 199 23.5 210 33.5 7.8 29.5 6.6 27.4 6.1 4.8
Other and unknown modes S S S S S S S S S S S S S S

SCTG2 17, Gasoline and aviation turbine fuel

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 2,778 100 4,542 100 157 100 34 26.4 - 26.4 - 41.6 - 20.7
Single modes 2,778 100 4,542 100 157 100 34 26.4 - 26.4 - 41.6 - 20.7
Truck6 2,778 100 4,542 100 157 100 34 26.4 - 26.4 - 41.6 - 20.7
For-hire truck 1,737 62.5 2,836 62.4 S S 33 23.1 6.8 23.1 6.8 S S 24.2
Private truck 1,041 37.5 1,706 37.6 63 40 35 29.2 11.2 29.2 11.2 31.3 11.1 35.1

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 2,149 100 3,814 100 137 100 35 33.9 - 33.9 - 36.8 - 16.9
Single modes 2,149 100 3,814 100 137 100 35 33.9 - 33.9 - 36.8 - 16.9
Truck6 2,149 100 3,814 100 137 100 35 33.9 - 33.9 - 36.8 - 16.9
For-hire truck 1,624 75.6 2,881 75.5 101 73.4 35 28.3 6.8 28.3 6.8 32.5 8.2 18
Private truck 525 24.4 934 24.5 36 26.6 35 34.4 16 34.3 16 43 15.9 19.6

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 1,481 100 1,685 100 320 100 218 34 - 22.9 - 35.3 - 20.4
Single modes 1,481 100 1,684 100 320 100 224 34 - 22.9 - 35.3 - 24.1
Truck6 1,467 99.1 1,672 99.2 312 97.5 224 34.1 0.5 22.8 0.5 34.8 1.1 24.1
For-hire truck 721 48.7 967 57.4 182 56.9 260 30.2 12.4 19.7 10.7 32.4 11.3 31.3
Private truck 746 50.4 704 41.8 130 40.6 168 31.7 9.9 31.1 9.4 33 10.3 25.5
Rail 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 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 1,260 100 593 100 283 100 S 22.7 - 34.7 - 31.7 - S
Single modes 1,124 89.2 577 97.4 268 94.7 271 26.4 7 35.9 1.7 33.5 3.2 49.3
Truck6 964 76.5 478 80.6 206 72.8 S 25.8 7.3 30.2 4.3 37.8 7.4 S
For-hire truck 782 62 297 50.1 183 64.8 593 29.6 10.1 28.4 11.2 38 9.1 16.9
Private truck S S S S S S S S S S S S S S
Rail S S S S 61 21.5 S S S S S 47.9 15.2 S
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S 9 1.6 11 3.8 S S S 35.4 1.4 48.8 2.2 S
Parcel, U.S.P.S. or courier S S 5 0.8 S S S S S 45.9 1.2 S S S
Truck and rail 15 1.2 3 0.6 6 2.1 1,923 20.5 9.2 26.8 3.7 26.2 8.7 22.5
Truck and water S S S S S S S S S S S S S S
Rail and water S S S S S S S S S S S S S S
Other and unknown modes S S 6 1 4 1.5 S S S 18.7 5.3 47.1 11.1 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 1,344 100 S S S S 439 41.4 - S S S S 29.9
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 27 S S S S S S 26.1
Air (incl truck and air) 3 0.2 - 0.1 - 0.7 1,254 11.7 9.6 10.8 6.4 14.8 8.1 7.3
Multiple modes S S S S S S 550 S S S S S S 23.4
Parcel, U.S.P.S. or courier S S S S S S 550 S S S S S S 23.4
Other and unknown modes S S S S S S S S S S S S S S

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 S S S S S S 115 S S S S S S 33.2
Single modes S S S S S S 115 S S S S S S 33.3
Truck6 S S S S S S 115 S S S S S S 33.3
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 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 S S S S S S S S

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 1,725 100 1,051 100 438 100 363 9.4 - 10.9 - 20.8 - 20.2
Single modes 1,632 94.6 987 93.8 406 92.5 335 9 2.1 9.5 2.8 20.2 3.3 21.4
Truck6 1,580 91.6 943 89.6 339 77.3 326 8.6 2.2 9 3.1 19.7 5.4 21.3
For-hire truck 1,233 71.5 829 78.9 317 72.3 546 10.4 5.2 9.5 4.1 18.4 5.4 13.5
Private truck 347 20.1 113 10.8 S S S 26.8 5.1 26.4 3.2 S S S
Rail 52 3 44 4.2 67 15.2 1,718 36.7 2.3 42.5 3.3 47.8 8.4 22.6
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 498 S S S S S S 49.5
Parcel, U.S.P.S. or courier 15 0.8 1 0.1 S S 481 43.4 0.3 30.8 - S S 30.6
Truck and rail 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 53 S S S S S S 31.7

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 2,858 100 1,356 100 653 100 204 18.6 - 20 - 25.9 - 41.5
Single modes 2,552 89.3 1,179 86.9 525 80.4 124 17.6 3.5 16.1 4.6 23 6.7 43
Truck6 2,187 76.5 791 58.3 352 53.9 115 19.1 6 14.3 9.3 32.5 9.3 45.7
For-hire truck 1,722 60.2 647 47.7 320 49 S 23.4 6.7 17.5 8.4 36.3 8.7 S
Private truck 465 16.3 144 10.6 32 4.9 145 29.9 3.6 24.5 4.1 26.6 3.3 15.1
Rail 356 12.5 387 28.5 172 26.4 450 16.5 6.3 8.3 8.9 14.4 12.7 12.7
Air (incl truck and air) S S S S S S 536 S S S S S S 13.9
Multiple modes S S S S S S 896 S S S S S S 26.8
Parcel, U.S.P.S. or courier 35 1.2 S S S S 896 27.8 1 S S S S 23.5
Truck and rail S S S S S S 909 S S S S S S 41.8
Other and unknown modes 46 1.6 29 2.2 12 1.8 S 38.8 1 36.8 0.6 48 1.3 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 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
Other and unknown modes 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 329 100 234 100 61 100 213 21.6 - 29 - 31.6 - 31.1
Single modes 325 98.7 232 99.4 59 96.8 128 22.1 1.9 29.3 1.1 33.1 3.5 18.7
Truck6 322 98 229 98 54 88.5 128 22.2 1.9 29.4 1.3 31.3 4.5 18.7
For-hire truck 128 38.8 79 34 35 57.1 369 35.1 6.8 41.9 6.9 38 8.2 27.2
Private truck 195 59.2 149 64 19 31.4 89 20.3 7.4 30 7.9 29.2 10 17.5
Rail S S S S S S S S S S S S S S
Multiple modes S S S S S S 996 S S S S S S 21
Parcel, U.S.P.S. or courier S S S S S S 985 S S S S S S 23.7
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 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 340 100 S S S S S 48.8 - S S S S S
Single modes 339 99.8 S S S S S 49 0.8 S S S S S
Truck6 339 99.8 S S S S S 49 0.8 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 38 S S S S S S 17.4
Multiple modes 1 0.2 S S S S S 24.5 4.8 S S S S S
Parcel, U.S.P.S. or courier 1 0.2 S S S S S 24.5 4.8 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 670 100 269 100 75 100 418 32.3 - 35 - 40 - 16
Single modes 613 91.4 257 95.5 66 88.6 278 31.4 2.2 35.3 1.6 40.6 4.1 22.9
Truck6 613 91.4 257 95.5 66 88.6 276 31.4 2.2 35.3 1.6 40.6 4.1 23.2
For-hire truck 393 58.6 115 42.7 49 65.3 492 35.2 9.8 33.9 13.4 45.8 9.9 13.3
Private truck 220 32.8 S S 17 23.3 78 37.4 9.5 S S 31.9 10.3 20.5
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 686 S S S S S S 13.9
Parcel, U.S.P.S. or courier S S S S S S 686 S S S S S S 13.9
Other and unknown modes S S S S S S 275 S S S S S S 42.3

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 913 100 349 100 129 100 464 17.7 - 18.8 - 34.3 - 17.4
Single modes 807 88.4 343 98.2 126 97.7 205 19 4.3 19.2 1.2 34.8 1 17.1
Truck6 804 88.1 342 97.9 125 97 165 19 4.4 19.2 1.2 35 1.6 23.6
For-hire truck 426 46.7 168 48.1 99 76.6 430 30.9 8.2 33.4 11.9 43.2 8.9 10
Private truck 378 41.4 174 49.8 S S 69 30.8 9.1 27.4 12.3 S S 33
Air (incl truck and air) 2 0.3 1 0.2 S S 576 38.6 0.2 48.8 0.2 S S 28
Multiple modes 98 10.7 6 1.6 3 2.3 663 36.6 4.4 34 1.1 36.2 1 17.8
Parcel, U.S.P.S. or courier 98 10.7 6 1.6 3 2.3 663 36.6 4.4 34 1.1 36.2 1 17.8
Other and unknown modes S S 1 0.2 S S 268 S S 46.6 0.4 S S 47.4

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 6,020 100 95 100 65 100 955 41.5 - 30.7 - 35.5 - 10.3
Single modes 5,462 90.7 83 87.5 57 87.3 997 45.6 16.4 37 11 42.2 13.5 18
Truck6 5,358 89 80 84.1 50 76.7 518 46.4 17.3 36.5 12.1 39.6 13.1 14
For-hire truck 5,333 88.6 75 79.3 48 74 673 46.6 18.5 38.7 14.6 41 14.7 13.1
Private truck 26 0.4 5 4.8 2 2.7 S 31.6 2.6 32.4 5.7 33.4 8.9 S
Rail S S S S S S S S S S S S S S
Air (incl truck and air) S S S S 1 2.2 S S S S S 41.8 6.5 S
Multiple modes 544 9 12 12.2 8 12.7 986 25 16.4 18.4 11.1 26.8 13.5 11.4
Parcel, U.S.P.S. or courier 544 9 12 12.2 8 12.7 986 25 16.4 18.4 11.1 26.8 13.5 11.4
Other and unknown modes S S S S S S 9 S S S S S S 33.4

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 792 100 5,131 100 429 100 192 10.5 - 46.9 - 38.7 - 32.2
Single modes 744 93.9 5,107 99.6 424 99 146 10.1 2.1 47 0.7 39.3 3.8 38.2
Truck6 711 89.7 4,734 92.3 244 56.8 145 11.7 4.2 49.9 6.3 40.4 12.1 38.5
For-hire truck 404 51 661 12.9 93 21.7 617 25 12 35.1 9.7 22.3 15.6 22.5
Private truck 306 38.7 S S S S 50 28.2 10.6 S S S S 37.7
Rail S S S S S S S S S S S S S S
Water S S S S S S 407 S S S S S S 12.4
Shallow draft S S S S S S 407 S S S S S S 12.4
Air (incl truck and air) - 0.1 - - - - 787 17.7 0.2 29.8 - 17.2 - 43.3
Multiple modes 40 5.1 S S S S 533 43.4 2.4 S S S S 31.6
Parcel, U.S.P.S. or courier 40 5 S S S S 533 43.4 2.4 S S S S 31.6
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 43.3 0.1 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 2,800 100 1,171 100 370 100 191 27.1 - 20.2 - 32.7 - 35.1
Single modes 2,721 97.2 1,160 99 364 98.4 181 26.1 0.7 19.8 0.3 32.1 0.5 37.1
Truck6 2,211 79 900 76.9 234 63.2 158 22.7 5.4 15.4 7.2 27.4 9 43.4
For-hire truck 1,857 66.3 692 59.1 210 56.7 382 26.5 6.5 20 7.4 28 7.7 16
Private truck 354 12.6 208 17.8 24 6.5 65 34.3 12.3 33.1 11.9 45.4 11.7 49.4
Rail 505 18 259 22.2 130 35.2 S 46.4 6 43.8 8.6 41.1 8.8 S
Air (incl truck and air) S S S S - - S S S S S 48.2 0.1 S
Multiple modes S S S S S S S S S S S S S S
Parcel, U.S.P.S. or courier 13 0.4 S S S S S 48.6 0.3 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 467 S S S S S S 48

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 2,215 100 571 100 142 100 281 33.9 - 41.5 - 28 - 31.5
Single modes 2,122 95.8 563 98.6 140 98.5 202 35.9 6.9 42.2 1.6 28.4 1.4 48.4
Truck6 2,113 95.4 560 98.2 140 98.5 S 36.1 7.2 42.5 2.8 28.4 1.4 S
For-hire truck S S S S 91 64.3 359 S S S S 17.4 9.8 22.1
Private truck 874 39.5 S S S S S 49.5 10.4 S S S S S
Rail S S S S S S S S S S S S S S
Air (incl truck and air) 4 0.2 - - S S 1,144 33.7 0.7 46.9 - S S 12.4
Multiple modes 77 3.5 5 0.9 2 1.3 568 31 5.6 46.6 1.3 35.1 1.5 13.6
Parcel, U.S.P.S. or courier 71 3.2 3 0.6 1 1 569 28.8 5.3 35.8 0.6 21.9 1.4 13.6
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 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 6,008 100 1,312 100 988 100 S 31.8 - 41.5 - 45.9 - S
Single modes 3,560 59.3 S S S S 330 42.2 8.3 S S S S 29.3
Truck6 3,384 56.3 S S S S 260 44.9 8 S S S S 48.6
For-hire truck S S S S S S 673 S S S S S S 18.6
Private truck 759 12.6 113 8.7 S S S 32.3 4 36.8 5.7 S S S
Air (incl truck and air) 176 2.9 4 0.3 S S 703 18.1 8.4 47 14.5 S S 13
Multiple modes 1,936 32.2 527 40.2 S S 461 34.4 6.9 48.9 9.4 S S 19.5
Parcel, U.S.P.S. or courier 389 6.5 6 0.4 2 0.2 438 27.6 7.5 22.7 4 23.8 4.2 23.1
Truck and rail 1,547 25.8 521 39.7 590 59.7 1,139 30.4 10.7 38.7 12 41.3 16 23.4
Other and unknown modes 512 8.5 114 8.7 1 0.1 S 37.2 9.7 39.9 16.5 29 2.2 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 2,701 100 S S S S 626 37.1 - S S S S 14.6
Single modes 1,879 69.6 S S S S 253 39.4 9.9 S S S S 34.1
Truck6 1,835 67.9 S S S S S 40.5 9.5 S S S S S
For-hire truck 1,414 52.4 S S S S 506 40.9 12.1 S S S S 17.2
Private truck 421 15.6 S S S S 46 47.2 8.6 S S S S 33.6
Air (incl truck and air) 45 1.7 S S - 0.1 1,009 47.5 7.2 S S 49.3 0.4 21.8
Multiple modes 820 30.4 14 4.8 9 8.6 759 40.7 9.9 46.2 5.8 41.5 6.1 11.6
Parcel, U.S.P.S. or courier 820 30.4 14 4.8 9 8.6 759 40.7 9.9 46.3 5.8 41.7 6.1 11.7
Truck and water S S S S S S S S S S S S S S
Other and unknown modes 1 - S S S S S 38 0.3 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 22,116 100 3,178 100 422 100 313 42 - 36.5 - 24 - 27.9
Single modes S S 1,623 51.1 412 97.7 359 S S 42.6 15 24.9 2.4 23.3
Truck6 S S 1,621 51 411 97.3 272 S S 42.6 14.9 25.1 2.5 27.9
For-hire truck S S 1,490 46.9 388 92 597 S S 46.9 12.8 26.1 3.7 17.2
Private truck 798 3.6 131 4.1 22 5.3 S 21.6 6.7 28.1 5.6 35.7 2.6 S
Air (incl truck and air) S S S S S S 902 S S S S S S 14.8
Multiple modes 145 0.7 6 0.2 4 1 636 35.5 2.1 36.2 0.4 43.2 1.1 11.6
Parcel, U.S.P.S. or courier 127 0.6 5 0.1 3 0.6 636 36.5 2.1 38.9 0.4 34 0.6 11.6
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 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 794 S S S S S S 23.5
Single modes S S S S S S 813 S S S S S S 22.4
Truck6 S S S S S S 813 S S S S S S 22.4
For-hire truck S S S S S S 879 S S S S S S 18.5
Private truck S S S S S S S S S S S S S S
Multiple modes S S S S S S 646 S S S S S S 3.9
Parcel, U.S.P.S. or courier S S S S S S 646 S S S S S S 3.9

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 384 100 S S 4 100 902 29 - S S 48.5 - 19.6
Single modes S S S S S S 390 S S S S S S 35.8
Truck6 S S S S S S S S S S S S S S
For-hire truck S S S S S S 811 S S S S S S 33.4
Private truck S S S S S S 34 S S S S S S 37.2
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes S S 4 43.8 3 75.1 918 S S 49.1 16.3 45.7 18.2 21.7
Parcel, U.S.P.S. or courier S S 4 43.8 3 75.1 918 S S 49.1 16.3 45.7 18.2 21.7
Other and unknown modes S S S S S S S S S S S S S S

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 427 100 99 100 S S 632 22.8 - 45.1 - S S 20.9
Single modes 417 97.7 98 98.3 S S 369 23.1 1.2 45 0.7 S S 25.9
Truck6 417 97.7 98 98.3 S S 369 23.1 1.2 45 0.7 S S 25.9
For-hire truck 100 23.4 28 28.4 S S 787 41.4 9.1 39 12.8 S S 11.2
Private truck 317 74.3 S S S S 99 27.4 9 S S S S 44.9
Multiple modes 8 1.9 1 1 1 1.9 900 29.6 2 32 1.2 30.3 2.5 16.1
Parcel, U.S.P.S. or courier 8 1.9 1 1 1 1.9 900 29.6 2 32 1.2 30.3 2.5 16.1
Other and unknown modes 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 1,456 100 136 100 52 100 731 27.9 - 33.7 - 35.4 - 11
Single modes 1,135 78 129 94.8 48 91.7 682 38.2 11.3 35.5 5.5 37.4 5.7 17.3
Truck6 1,126 77.4 128 94.5 48 91.5 566 38.4 11.3 35.4 5.4 37.3 5.7 16
For-hire truck 764 52.5 124 91.4 47 90.8 610 44.9 11.3 36.9 6.6 37.4 5.8 14.3
Private truck S S 4 3.1 S S S S S 41.1 6.2 S S S
Water S S S S S S S S S S S S S S
Shallow draft S S S S S S S S S S S S S S
Air (incl truck and air) 4 0.3 S S S S 1,822 1 4.8 S S S S 46.3
Multiple modes 310 21.3 6 4.4 4 7.4 805 35 11.2 39 3.9 36 4.5 12.5
Parcel, U.S.P.S. or courier 310 21.3 6 4.4 4 7.4 805 35 11.2 39 3.9 36 4.5 12.5
Other and unknown modes S S S S S S S S S S S S S S

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 596 100 955 100 418 100 360 37.1 - 37.7 - 35.2 - 24.7
Single modes 502 84.2 756 79.1 307 73.5 233 41.4 9.1 39.9 6.7 43.1 9.9 21.2
Truck6 392 65.7 286 30 69 16.5 225 41.8 10 29.8 17.2 32.3 19.6 21.7
For-hire truck 359 60.3 252 26.4 57 13.6 218 40.7 11.8 29 17.3 32.6 19.2 27.3
Private truck S S S S S S 272 S S S S S S 33.1
Water 110 18.5 469 49.1 238 56.9 508 36.9 8.2 39 13.2 39 16.3 0.5
Shallow draft 110 18.5 469 49.1 238 56.9 508 36.9 8.2 39 13.2 39 16.3 0.5
Multiple modes 89 15 197 20.7 110 26.3 1,052 45.2 14.1 34.1 7.8 35.2 13.1 34.9
Truck and rail 89 15 197 20.7 110 26.3 1,052 45.2 14.1 34.1 7.8 35.2 13.1 34.9
Other and unknown modes 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 5,039 100 1,415 100 208 100 152 37.5 - 28.3 - 29.8 - 28.4
Single modes 4,917 97.6 1,398 98.8 201 96.3 81 37.8 3.2 28.6 1.9 30.1 2.2 47.4
Truck6 4,908 97.4 1,398 98.8 200 96 77 37.9 3.2 28.7 1.9 30.2 2.3 49.4
For-hire truck 580 11.5 200 14.2 73 34.9 241 31 9.5 23.6 10.6 24.2 9.3 39.4
Private truck 4,328 85.9 1,198 84.6 127 61.1 56 42.1 10.1 32.1 10.2 36.4 9.7 15.9
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 507 S S S S S S 17.1
Parcel, U.S.P.S. or courier S S S S S S 506 S S S S S S 17.1
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 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
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.