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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

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

Tuesday, July 3, 2012

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.

Excel | CSV

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 93,147 100 57,354 100 9,474 100 328 6.1 - 10.4 - 5.1 - 9.4
Single modes 80,232 86.1 55,337 96.5 8,314 87.8 178 6.2 2.6 10.1 0.8 4.9 3.2 9.8
Truck6 79,562 85.4 53,915 94 7,796 82.3 164 6.3 2.5 10 1.4 4.7 3.5 11.1
For-hire truck 38,691 41.5 31,506 54.9 6,155 65 466 5.3 2.2 15.9 4 5.4 3.7 7.9
Private truck 40,872 43.9 22,410 39.1 1,641 17.3 74 10.4 3.3 9.1 4.1 8.1 1.2 13.5
Rail 398 0.4 S S 509 5.4 S 36.7 0.2 S S 37 1.8 S
Air (incl truck and air) 271 0.3 S S S S 1,294 30 0.1 S S S S 8
Multiple modes 8,500 9.1 954 1.7 577 6.1 479 17.3 1.3 28.8 0.4 23.3 1.2 13.1
Parcel, U.S.P.S. or courier 7,955 8.5 296 0.5 149 1.6 478 17.5 1.2 15.9 0.1 15.7 0.3 13.1
Truck and rail 393 0.4 618 1.1 367 3.9 427 46.5 0.2 40.6 0.4 30.7 1.1 32.1
Truck and water S S S S S S 4,873 S S S S S S 23.1
Other multiple modes S S S S S S S S S S S S S S
Other and unknown modes 4,415 4.7 1,064 1.9 582 6.1 85 49.2 2.1 41 0.7 46 2.6 41.6

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 397 100 260 100 74 100 365 32.1 - 22.4 - 17.9 - 34.1
Single modes 267 67.1 248 95.6 70 94.3 365 15 13.1 24.1 4.7 18.8 4.5 31.8
Truck6 267 67.1 248 95.6 70 94.3 365 15 13.1 24.1 4.7 18.8 4.5 31.8
For-hire truck 171 42.9 142 54.9 61 81.7 503 19.5 16.6 20.2 11.8 14.6 6.6 19.9
Private truck S S S S 9 12.6 S S S S S 43.1 14.6 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 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 366 100 1,622 100 136 100 84 25.4 - 28 - 47.5 - 39.7
Single modes 366 100 1,622 100 136 100 84 25.4 - 28 - 47.5 - 39.7
Truck6 366 100 1,622 100 136 100 84 25.4 - 28 - 47.5 - 39.7
For-hire truck S S S S S S 217 S S S S S S 36.2
Private truck 239 65.3 1,245 76.8 S S S 37 15.4 39.1 12.3 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 559 100 285 100 103 100 191 14.6 - 20.3 - 27.6 - 45
Single modes 476 85.2 248 87 102 98.5 198 16.8 5.6 23.3 4.9 25.8 0.6 46.8
Truck6 476 85.2 248 87 102 98.5 198 16.8 5.6 23.3 4.9 25.8 0.6 46.8
For-hire truck 318 56.9 132 46.3 71 68.8 568 19.9 11.9 14.9 13.5 22.7 8.3 23.9
Private truck 158 28.2 116 40.7 31 29.7 S 22.8 15.6 28.6 12.1 30.9 7.4 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 1,363 100 748 100 S S S 31.5 - 39.1 - S S S
Single modes 1,315 96.5 715 95.6 S S S 30.3 1.7 37.3 1.9 S S S
Truck6 1,226 90 648 86.6 190 62.6 S 28.6 4.9 34 5.8 38.8 14.6 S
For-hire truck 633 46.5 302 40.4 118 39 442 33.1 17.5 34.4 18.7 38.1 19.4 19.9
Private truck 593 43.5 346 46.3 S S S 37 18 36.6 17.1 S S S
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
Truck and rail 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 2,628 100 3,464 100 781 100 259 14 - 26.2 - 30.7 - 31.3
Single modes 2,565 97.6 3,455 99.7 775 99.2 S 14.5 2.2 26.3 0.4 31.2 1.9 S
Truck6 2,497 95 3,378 97.5 691 88.4 S 13.8 2.2 25.8 0.7 29.1 3.1 S
For-hire truck 961 36.6 1,259 36.3 455 58.3 504 20.4 5.9 35.3 8 34.7 7.1 13.7
Private truck 1,536 58.5 2,119 61.2 236 30.2 S 12 7.5 21.6 8.8 20.2 12.3 S
Rail 68 2.6 77 2.2 84 10.7 1,099 37 2.5 25.8 1.4 19.4 4.2 16.3
Air (incl truck and air) - - - - - - 548 39.6 - 19.9 - 3.9 - 17.8
Multiple modes S S S S S S 969 S S S S S S 25.5
Parcel, U.S.P.S. or courier S S S S S S 969 S S S S S S 25.5
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 421 100 181 100 8 100 32 24.4 - 22.6 - 28.3 - 14.1
Single modes 408 96.9 172 94.9 8 98.1 32 22.5 1.2 19.7 2.1 32.1 1.4 13.9
Truck6 376 89.3 150 82.8 7 94.6 33 18 4.3 15.5 7.2 29.9 4.3 13.9
For-hire truck S S 4 2.1 S S 1,133 S S 11.5 17.3 S S 1.8
Private truck 352 83.6 146 80.7 4 49.4 29 20.2 6.1 16.6 7 14.8 15.1 7.4
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 688 S S 48.4 - S S 27.1
Truck and rail 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 12,853 100 161 100 8 100 S 32.3 - 31.5 - 18.2 - S
Single modes 12,853 100 161 100 8 100 S 32.3 - 31.5 - 18.2 - S
Truck6 12,853 100 161 100 8 100 S 32.3 - 31.5 - 18.2 - S
For-hire truck S S S S S S 575 S S S S S S 20.4
Private truck 12,776 99.4 153 95.1 5 62.3 33 7.8 0.2 7.8 1.6 4.4 11.9 0.9

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 13 84.2 S S S S S 37.3 11.6 S S S S S
Private truck S S S S S S S S S S S S S S
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
Truck and rail 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 6 100 325 100 23 100 43 28.9 - 28.3 - 37.2 - 37.7
Single modes 6 100 325 100 23 100 43 28.9 - 28.3 - 37.2 - 37.7
Truck6 6 100 325 100 23 100 43 28.9 - 28.3 - 37.2 - 37.7
For-hire truck 4 63.6 264 81.2 S S 82 37.7 17.7 35.9 20 S S 18.6
Private truck S S S S S S 18 S S S S S S 45.5

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 244 100 15,937 100 529 100 S 23.8 - 28.2 - 19.2 - S
Single modes 244 100 15,937 100 529 100 S 23.8 - 28.2 - 19.2 - S
Truck6 242 99 15,866 99.6 463 87.5 S 24.2 0.8 28.5 0.8 20.8 6.9 S
For-hire truck 234 95.9 15,331 96.2 452 85.6 S 25.7 5.6 30.2 5.2 21.9 6.9 S
Private truck 8 3.1 536 3.4 10 2 20 21.7 8.8 25 8.1 33.7 6.9 17.1
Rail 2 1 71 0.4 S S 931 19.6 2.8 20.3 2.7 S S 0.3

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 37 100 170 100 19 100 S 29.4 - 49.9 - 33.2 - S
Single modes 37 99.9 170 100 19 100 S 29.3 0.1 49.9 - 33.2 - S
Truck6 37 99.8 170 100 19 100 111 29.3 0.1 49.9 - 33.2 0.1 42.1
For-hire truck 25 67.2 S S 17 86.7 145 25.2 12.2 S S 39 4.9 49.7
Private truck S S S S S S 85 S S S S S S 34
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 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
Private truck 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 1,398 100 1,902 100 156 100 S 28.1 - 29 - 26.7 - S
Single modes 1,398 100 1,902 100 156 100 S 28.1 - 29 - 26.7 - S
Truck6 1,398 100 1,902 100 156 100 S 28.1 - 29 - 26.7 - S
For-hire truck 1,196 85.5 1,631 85.8 150 95.8 91 22.9 6.6 21 6.4 11.8 2.9 34.4
Private truck 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 324 100 518 100 84 100 S 39.4 - 40.6 - 41.8 - S
Single modes 324 100 518 100 84 100 S 39.4 - 40.6 - 41.8 - S
Truck6 324 100 518 100 84 100 S 39.4 - 40.6 - 41.8 - S
For-hire truck 176 54.4 292 56.3 82 96.8 201 31.2 19.2 33.5 18.4 36.5 1.5 25.2
Private truck 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 600 100 S S 44 100 S 32.7 - S S 48.6 - S
Single modes 598 99.7 S S 44 99.9 S 32.8 1.1 S S 48.6 0.7 S
Truck6 598 99.7 S S 44 99.9 S 32.8 1.1 S S 48.6 0.7 S
For-hire truck S S S S S S 313 S S S S S S 42.8
Private truck 374 62.4 363 52.6 18 41.8 S 32.7 10.1 34.7 12.6 33.3 13.8 S
Multiple modes S S - - S S 655 S S 36.6 0.1 S S 40.9
Parcel, U.S.P.S. or courier S S - - S S 655 S S 36.6 0.1 S S 40.9

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 2,328 100 1,627 100 254 100 S 39.3 - 36.8 - 37.4 - S
Single modes 2,242 96.3 1,580 97.2 236 92.9 S 40.9 8.8 37.1 1.4 35.7 2.6 S
Truck6 2,241 96.3 1,580 97.2 236 92.9 S 40.9 8.8 37.1 1.4 35.7 2.6 S
For-hire truck 832 35.7 S S S S 390 35.5 14.7 S S S S 16.5
Private truck S S 1,153 70.9 82 32.1 S S S 45.5 16.7 48.4 14.9 S
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes 86 3.7 S S S S S 37.2 15.1 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 17 6.9 S S S S S 46.6 11.3 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 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 611 S S S S S S 27.5
Private truck S S S S S S 91 S S S S S S 17.1
Multiple modes S S S S S S 140 S S S S S S 9.9
Parcel, U.S.P.S. or courier S S S S S S 140 S S S S S S 9.9

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 58 S S S S S S 26.4
Single modes S S S S S S 58 S S S S S S 26.4
Truck6 S S S S S S 58 S S S S S S 26.4
For-hire truck S S S S S S 56 S S S S S S 41.2
Private truck S S S S S S 59 S S S S S S 29.2

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 2,046 100 607 100 271 100 213 25 - 32.8 - 39.3 - 28.3
Single modes 1,807 88.3 592 97.4 269 99.2 223 26.8 5.8 33.3 1.1 39.7 2.5 36.3
Truck6 1,768 86.4 560 92.1 246 90.9 212 27 5.6 34.6 4.1 41.3 5.6 23.2
For-hire truck 1,095 53.5 389 64 210 77.7 612 24.6 7 36.4 7.2 40.9 6.4 15.2
Private truck 674 32.9 171 28.2 36 13.2 60 41.6 7.2 36.2 6.3 45.2 2.3 44.5
Rail 32 1.5 32 5.2 22 8.2 696 39.4 3.8 38.5 14.8 49.8 19.4 24.1
Air (incl truck and air) S S S S S S 1,252 S S S S S S 30.8
Multiple modes 176 8.6 S S 2 0.7 252 35.1 6.6 S S 41.8 2.8 38.8
Parcel, U.S.P.S. or courier 176 8.6 S S 2 0.7 252 35.1 6.6 S S 41.8 2.8 38.8
Other and unknown modes S S 7 1.1 - 0.1 S S S 46.7 1.3 30 1.1 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 6,550 100 2,347 100 1,064 100 397 19.6 - 18 - 22.8 - 17.5
Single modes 6,114 93.3 2,312 98.5 1,055 99.1 414 18.2 1.7 17.7 0.5 22.9 1 16.8
Truck6 6,101 93.1 2,311 98.4 1,052 98.9 383 18.2 1.7 17.7 0.4 22.8 1 14.6
For-hire truck 5,119 78.1 1,957 83.4 1,025 96.3 634 18.4 3.8 18.6 4.9 23.5 3.7 5.6
Private truck 982 15 354 15.1 27 2.6 84 27.4 3.5 30.3 4.8 33.6 2.7 28.2
Rail S S S S S S S S S S S S S S
Air (incl truck and air) 12 0.2 1 - 1 0.1 1,465 27.9 0.3 24.2 - 48 0.1 21.5
Multiple modes S S 14 0.6 9 0.8 578 S S 33 0.2 43.8 1.1 17.5
Parcel, U.S.P.S. or courier S S 10 0.4 5 0.4 577 S S 43.1 0.1 49.8 0.1 17.5
Truck and rail 5 0.1 S S S S S 26.4 0.6 S S S S S
Truck and water S S S S S S 3,518 S S S S S S 33.7
Other and unknown modes S S S S S S S S S S S S S 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 90 100 S S S S S 43.4 - S S S S S
Single modes 90 99 S S S S S 44 1.2 S S S S S
Truck6 90 99 S S S S S 44 1.2 S S S S S
For-hire truck 16 17.8 27 2.2 S S 703 22.9 12.6 25.9 18.9 S S 48.1
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 water 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 1,566 100 2,288 100 369 100 245 22.1 - 27.5 - 20.8 - 20.6
Single modes 1,470 93.9 2,100 91.8 312 84.5 194 22.6 2.6 29.9 2.9 21.5 4.8 23.9
Truck6 1,469 93.8 2,064 90.2 300 81.3 194 22.6 2.6 30.5 3 22.9 5.4 23.9
For-hire truck 548 35 523 22.9 179 48.5 515 33 7.3 29.7 7.3 40.5 9.2 14.8
Private truck 921 58.8 1,541 67.3 121 32.7 104 28.3 7.4 36.4 8.3 24 7.8 15.6
Rail 1 0.1 S S 12 3.2 324 49 0.2 S S 49.9 9.8 1
Multiple modes 30 1.9 53 2.3 18 4.9 554 44.2 0.9 41.6 2.5 38.6 4.4 18.3
Parcel, U.S.P.S. or courier 29 1.8 6 0.3 3 0.8 555 48.9 1 48.9 0.3 48.6 0.4 19.4
Truck and rail 2 0.1 47 2 15 4.1 325 8.7 0.5 10.3 7.6 11.3 13.6 -
Other and unknown modes 66 4.2 S S S S 295 47.2 3.7 S S S S 36.8

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 1,459 100 S S S S 242 27.9 - S S S S 18.7
Single modes 1,258 86.2 S S 324 93.9 104 31.6 10.5 S S 49.4 9.2 37.8
Truck6 1,197 82 1,141 76.6 235 68.2 100 31.5 10.5 42.1 6.7 39.5 10.8 23.1
For-hire truck 740 50.7 S S 208 60.2 353 37.2 11 S S 41.4 12.1 24.7
Private truck 457 31.3 335 22.5 28 8 S 39.3 9.7 34 13.4 28 10.8 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 S S S S S S S S S S
Multiple modes S S S S S S 500 S S S S S S 20.2
Parcel, U.S.P.S. or courier S S S S S S 500 S S S S S S 24.5
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 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 845 100 559 100 144 100 152 29.6 - 25.7 - 37.1 - 25.6
Single modes 834 98.6 554 99.2 143 99.7 143 30 2.1 25.9 1.3 37.1 0.3 26.6
Truck6 832 98.4 543 97.1 135 94 143 30.2 2.5 27.1 5 40.4 8.1 26.3
For-hire truck 671 79.4 430 76.9 120 83.2 289 37.1 14.1 33 12.7 43.1 14 28.5
Private truck 161 19 113 20.2 15 10.7 72 29.4 15 29.6 13 31.8 14.5 18.3
Rail S S S S S S S S S S S S S S
Multiple modes 4 0.5 S S S S 735 44.5 1.1 S S S S 27.5
Parcel, U.S.P.S. or courier S S S S S S 740 S S S S S S 27.9
Other multiple modes S S S S S S S S S S S S S S
Other and unknown modes S S S S - 0.1 S S S S S 44.3 0.6 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 890 100 188 100 53 100 519 27.1 - 25.9 - 29.9 - 15.6
Single modes 510 57.3 162 86.1 48 89.4 444 24.4 10 25.4 3.6 33.9 8.8 21.9
Truck6 510 57.3 162 86.1 48 89.4 444 24.4 10 25.4 3.6 33.9 8.8 21.9
For-hire truck 384 43.1 111 59.2 42 79.3 649 27.9 11.2 34.3 8.8 34.4 10.3 20.8
Private truck 127 14.2 51 26.9 5 10.1 74 33 10.5 24.4 11.1 37.9 12.6 36.1
Multiple modes S S 9 4.7 S S 664 S S 37.9 3 S S 13.7
Parcel, U.S.P.S. or courier S S 9 4.7 S S 664 S S 37.9 3 S S 13.7
Other and unknown modes S S S S - 0.8 S S S S S 43.6 1.3 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 9,546 100 1,254 100 739 100 814 10.2 - 15.1 - 32 - 13
Single modes 8,261 86.5 1,150 91.7 606 82 435 8.7 3.4 14.5 1.5 27.6 3.4 15.2
Truck6 8,249 86.4 1,147 91.5 605 81.9 412 8.7 3.4 14.6 1.5 27.6 3.4 14.9
For-hire truck 7,021 73.6 930 74.2 580 78.5 637 11.4 6.3 15.8 5.3 28.4 3.5 5.8
Private truck 1,228 12.9 217 17.3 25 3.4 80 31.1 3.3 43.1 4.8 23.6 0.8 36.1
Rail S S S S - - S S S S S 26.4 0.3 S
Air (incl truck and air) S S S S S S 2,038 S S S S S S 17.1
Multiple modes 1,093 11.4 94 7.5 S S 885 42.4 2.9 34.8 1.5 S S 12.4
Parcel, U.S.P.S. or courier 1,013 10.6 54 4.3 42 5.7 885 46.1 3 30.7 0.9 38.6 2.3 12.4
Truck and rail S S S S S S 2,216 S S S S S S 39.1
Truck and water S S S S S S 1,729 S S S S S S 14.8
Other and unknown modes 192 2 S S S S S 34.7 1.3 S S S S S

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 1,627 100 7,117 100 843 100 S 15.8 - 22.4 - 18.2 - S
Single modes 1,579 97 7,019 98.6 749 88.8 S 15.9 1 22.5 0.9 15.6 4.4 S
Truck6 1,521 93.5 6,466 90.8 703 83.4 S 16.5 2.4 23.6 4.7 14.9 4.7 S
For-hire truck 796 48.9 1,383 19.4 523 62.1 503 16.9 6.1 18.8 7.8 19.5 6.4 10.7
Private truck 725 44.5 5,083 71.4 180 21.4 S 31.4 6.4 28.4 8.1 21.7 5.4 S
Rail S S S S 45 5.4 S S S S S 20.6 8.4 S
Air (incl truck and air) S S S S S S 929 S S S S S S 21.6
Multiple modes 35 2.2 S S S S 362 33.6 0.8 S S S S 26.8
Parcel, U.S.P.S. or courier 25 1.6 1 - - 0.1 343 45.6 0.7 38.7 - 49.7 0.1 30.6
Truck and rail 10 0.6 56 0.8 S S 1,274 36.4 0.8 44.2 1 S S 45.2
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 3,359 100 1,485 100 344 100 187 12.8 - 22.6 - 20.6 - 24
Single modes 3,196 95.1 1,454 97.9 334 96.9 168 12.3 1.7 22.8 0.8 20.9 3.3 22
Truck6 3,184 94.8 1,437 96.8 331 96 168 12.5 1.7 22.8 1.1 20.5 3.2 22.1
For-hire truck 2,119 63.1 756 50.9 256 74.5 331 22.5 8.5 25.4 7.8 26.1 7.2 18.9
Private truck 1,066 31.7 681 45.9 74 21.6 99 23.8 9.1 39.6 8.4 33 8 11
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 S S S S S S S S
Parcel, U.S.P.S. or courier S S S S S S 360 S S S S S S 19.8
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 44 1.3 10 0.7 S S S 49.9 1.5 49.5 0.5 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 3,196 100 1,240 100 397 100 306 20.7 - 28.4 - 21.6 - 9.4
Single modes 2,821 88.3 1,215 98 388 97.7 283 23.6 5.7 28.6 1.1 22 1.1 13.3
Truck6 2,821 88.3 1,215 98 388 97.7 282 23.6 5.7 28.6 1.1 22 1.1 13.3
For-hire truck 1,775 55.5 801 64.6 357 89.9 533 21 7.3 33.4 7 22.8 2.9 12.2
Private truck 1,046 32.7 413 33.3 31 7.8 53 44.3 6.4 41.8 6.9 37 2.2 21.2
Air (incl truck and air) S S - - - - 535 S S 14.7 - 21.5 - 7.4
Multiple modes 314 9.8 10 0.8 S S 435 39.9 5.7 39.5 0.9 S S 13.3
Parcel, U.S.P.S. or courier 260 8.1 9 0.7 S S 434 30.5 3.4 40.4 0.6 S S 13.3
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 60 1.9 S S S S S 47.1 0.5 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 7,333 100 812 100 251 100 436 12.4 - 21.8 - 35 - 13.8
Single modes 5,686 77.5 777 95.8 230 91.8 286 16.4 4.6 22.8 1.5 38.5 4.5 31.6
Truck6 5,569 75.9 776 95.5 228 90.7 193 16 4.5 22.9 1.5 39.1 5.1 32.1
For-hire truck 4,348 59.3 511 62.9 213 85 598 17.4 4.2 21.5 7.1 39 5.4 14.8
Private truck 1,221 16.7 265 32.6 14 5.7 41 22.7 3.5 33.7 7.2 49.9 2.2 21.3
Air (incl truck and air) 117 1.6 2 0.2 3 1.1 1,236 33 0.6 42.8 0.5 49.8 4 13.8
Multiple modes 1,467 20 27 3.4 S S 617 14.6 3.9 45.4 1.4 S S 12.4
Parcel, U.S.P.S. or courier 1,432 19.5 15 1.8 10 3.9 617 14.7 3.9 14.5 0.8 22.6 1.4 12.4
Truck and water S S S S S S S S S S S S S S
Other and unknown modes 180 2.4 7 0.9 2 0.6 134 30.5 1.2 31.6 0.5 40.2 0.4 38.1

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 6,051 100 517 100 210 100 319 15.5 - 31.6 - 22.1 - 25.9
Single modes 4,146 68.5 463 89.5 188 89.4 S 20.9 6.5 33.5 2.9 25.9 5.9 S
Truck6 4,118 68.1 462 89.4 186 88.7 S 21.1 6.6 33.5 2.9 26.1 6.1 S
For-hire truck 2,711 44.8 210 40.7 137 65.4 640 26.5 9.3 25.6 10.7 27.1 8.5 9.7
Private truck 1,408 23.3 S S S S S 40.3 6.8 S S S S S
Air (incl truck and air) 28 0.5 1 0.1 S S 1,237 27.9 0.4 29.8 0.1 S S 10.8
Multiple modes 1,670 27.6 36 7.1 19 9.1 514 31.4 7 24.3 2.8 25 5.5 18.7
Parcel, U.S.P.S. or courier 1,670 27.6 36 7 19 9 514 31.4 7 24.1 2.8 25.5 5.5 18.8
Truck and water S S S S S S S S S S S S S S
Other and unknown modes 234 3.9 18 3.5 3 1.4 51 37.8 1.5 40.3 1.1 36.7 2.2 18.1

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 7,684 100 1,061 100 558 100 302 30.1 - 26.2 - 34.8 - 28.1
Single modes 3,902 50.8 696 65.6 253 45.3 S 27.8 13.2 27.5 11.2 24.9 16.2 S
Truck6 3,892 50.6 695 65.5 251 45 S 27.8 13.1 27.6 11.1 24.8 16.2 S
For-hire truck 2,468 32.1 416 39.2 217 38.8 560 30.5 11.7 25 13 26.8 15.8 14.8
Private truck 1,423 18.5 S S 34 6.2 141 39.8 9.4 S S 47.9 4.3 19.8
Air (incl truck and air) S S S S S S S S S S S S S S
Multiple modes 787 10.2 37 3.5 9 1.7 323 42.5 6.9 40.4 2.3 38.8 1.2 35.1
Parcel, U.S.P.S. or courier 776 10.1 36 3.4 9 1.5 323 43.1 6.9 42.4 2.4 42.7 1.2 35.1
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 675 S S S S S S 25.1

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 239 100 S S 2 100 793 48.1 - S S 38.7 - 30.9
Single modes 231 96.7 S S 2 98.6 897 48.5 2.5 S S 39.1 1.4 26.2
Truck6 S S S S 2 94.5 854 S S S S 40.9 4.2 30.3
For-hire truck S S S S 2 87.6 882 S S S S 44 9.4 29.6
Private truck 4 1.6 - 11.4 - 6.9 231 32.1 8.2 37.8 16.7 42.7 13.8 31.2
Air (incl truck and air) S S S S S S 1,718 S S S S S S 22.1
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 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 507 100 6 100 S S 737 30.4 - 30.4 - S S 23.2
Single modes S S 3 54.4 S S 378 S S 33 12.3 S S 22.5
Truck6 S S 3 48.4 - 5.2 209 S S 32.1 11.4 44 14 36
For-hire truck S S 2 43 - 5 331 S S 33.9 10.7 42.9 15.6 30.4
Private truck S S S S S S 59 S S S S S S 24.8
Air (incl truck and air) S S S S S S 656 S S S S S S 20.4
Multiple modes 258 50.8 S S S S 1,013 34.7 13.6 S S S S 19.3
Parcel, U.S.P.S. or courier 258 50.8 S S S S 1,013 34.7 13.6 S S S S 19.3
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 1,127 100 171 100 80 100 583 30.8 - 32.2 - 34.3 - 26.4
Single modes 1,080 95.8 168 98.4 76 95.2 576 31.2 1.8 32.3 0.6 34.2 1.8 26.3
Truck6 1,080 95.8 168 98.4 76 95.2 576 31.2 1.8 32.3 0.6 34.2 1.8 26.3
For-hire truck 561 49.8 80 46.6 71 89.7 882 25 13.3 37.5 15 35.2 4.1 16.9
Private truck S S S S S S 55 S S S S S S 41
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 1 0.1 S S S S S 11.1 0.4 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 4,410 100 454 100 98 100 317 42.4 - 28.7 - 31.1 - 31.4
Single modes 3,906 88.6 442 97.2 92 94.7 S 46.6 6.2 29 0.8 31.5 1.8 S
Truck6 3,906 88.6 442 97.2 92 94.7 S 46.6 6.2 29 0.8 31.5 1.8 S
For-hire truck 932 21.1 201 44.1 78 80.4 335 25.4 8.6 27.6 9.7 36.4 8 32.2
Private truck S S 241 53 14 14.4 S S S 37.8 10 33.4 8.3 S
Air (incl truck and air) - - S S - - 597 23.8 - S S 49.6 - 12.8
Multiple modes 457 10.4 8 1.7 5 5 632 34 6.1 37.1 0.5 40.6 1.9 15.2
Parcel, U.S.P.S. or courier 457 10.4 8 1.7 5 5 632 34 6.1 37.1 0.5 40.6 1.9 15.2
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 S S S S S S 221 S S S S S S 29.9
Single modes S S S S S S 84 S S S S S S 31.5
Truck6 S S S S S S 70 S S S S S S 19.5
For-hire truck 167 24.8 S S S S 338 48.2 17.4 S S S S 23.9
Private truck S S S S S S 32 S S S S S S 24.3
Rail S S S S S S 377 S S S S S S 17.2
Multiple modes 145 21.5 S S S S 388 13.4 19.6 S S S S 1.1
Truck and rail 145 21.5 S S S S 388 13.4 19.6 S S S S 1.1
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 8,399 100 3,036 100 377 100 291 10.6 - 13.7 - 10.8 - 9.1
Single modes 7,756 92.3 2,966 97.7 343 91 131 11.5 1.9 14 0.8 12.4 3.3 10
Truck6 7,752 92.3 2,966 97.7 343 91 130 11.6 1.9 14 0.8 12.4 3.3 10
For-hire truck 1,154 13.7 427 14.1 76 20.3 310 23.2 3.1 31.5 5.3 35.7 5.5 37
Private truck 6,598 78.6 2,538 83.6 267 70.7 112 12.3 4.3 17.4 5.2 12.7 6.5 9.2
Air (incl truck and air) S S S S S S 711 S S S S S S 25.3
Multiple modes 599 7.1 58 1.9 24 6.4 379 21.8 1.8 30.2 0.8 31.6 2 23.6
Parcel, U.S.P.S. or courier 599 7.1 58 1.9 24 6.4 379 21.8 1.8 30.2 0.8 31.6 2 23.6
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 5 100 S S S S S 45.5 - S S S S S
Single modes S S S S S S 136 S S S S S S 6.6
Truck6 S S S S S S 136 S S S S S S 6.6
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 43 S S S S S S 47.5
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

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.