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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 4. Shipment Characteristics by Mode of Transportation and Shipment Size for Metropolitan Area of Origin: 2007

Tuesday, July 3, 2012

Table 4. Shipment Characteristics by Mode of Transportation and Shipment Size 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 Modes

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 179,669 100 226,291 100 45,488 100 396 7.2 - 7.8 - 8.1 - 6.1
Less than 50 lbs 9,139 5.1 174 0.1 83 0.2 529 12.8 0.6 8.1 - 12.0 - 6.6
50 - 99 lbs 2,522 1.4 153 0.1 49 0.1 315 11.0 0.1 12.9 - 11.5 - 11.6
100 - 499 lbs 8,840 4.9 1,014 0.4 292 0.6 294 6.8 0.5 7.6 0.1 9.2 0.1 11.3
500 - 749 lbs 4,615 2.6 499 0.2 138 0.3 278 34.4 0.7 9.3 - 11.3 - 13.7
750 - 999 lbs 2,495 1.4 476 0.2 123 0.3 258 14.0 0.2 11.7 - 13.4 - 8.4
1,000 - 9,999 lbs 36,360 20.2 10,513 4.6 2,659 5.8 248 12.0 1.5 6.0 0.5 7.6 0.5 5.5
10,000 - 49,999 lbs 83,655 46.6 99,458 44.0 20,117 44.2 206 8.5 2.1 10.6 3.7 6.9 4.1 7.4
50,000 - 99,999 lbs 11,111 6.2 42,170 18.6 3,083 6.8 70 16.2 0.9 12.2 1.4 11.7 0.8 11.2
More than 100,000 lbs 20,930 11.6 71,835 31.7 18,944 41.6 494 26.8 2.6 18.3 4.5 20.7 4.7 11.7

Single modes

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 162,489 100 212,070 100 38,351 100 195 7.6 - 7.2 - 6.6 - 7.6
Less than 50 lbs 1,758 1.1 55 - 8 - 130 16.1 0.1 11.1 - 14.2 - 16.6
50 - 99 lbs 1,148 0.7 103 - 17 - 153 12.7 0.1 18.7 - 14.2 - 19.7
100 - 499 lbs 7,425 4.6 902 0.4 218 0.6 230 5.5 0.4 7.7 0.1 8.8 0.1 14.1
500 - 749 lbs 4,465 2.7 481 0.2 124 0.3 260 35.6 0.8 9.3 - 11.9 - 14.7
750 - 999 lbs 2,385 1.5 466 0.2 112 0.3 239 13.7 0.2 11.4 - 12.4 - 9.1
1,000 - 9,999 lbs 35,665 21.9 10,395 4.9 2,573 6.7 244 12.3 1.6 6.1 0.5 8.0 0.5 5.7
10,000 - 49,999 lbs 81,633 50.2 97,894 46.2 19,094 49.8 199 8.5 2.1 10.4 3.8 6.6 3.6 7.3
50,000 - 99,999 lbs 10,387 6.4 38,790 18.3 2,580 6.7 65 17.3 1.0 12.6 1.5 7.9 0.7 12.0
More than 100,000 lbs 17,622 10.8 62,985 29.7 13,625 35.5 409 27.9 2.6 19.4 4.8 19.4 4.2 9.2

Truck4

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 145,102 100 153,472 100 25,436 100 190 7.9 - 9.1 - 6.3 - 7.5
Less than 50 lbs 1,702 1.2 55 - 7 - 120 16.5 0.1 11.2 - 12.7 - 15.7
50 - 99 lbs 1,130 0.8 102 0.1 16 0.1 149 12.9 0.1 18.8 - 13.6 - 19.5
100 - 499 lbs 7,308 5.0 899 0.6 214 0.8 227 5.2 0.4 7.8 0.1 8.7 0.1 14.3
500 - 749 lbs 4,395 3.0 480 0.3 123 0.5 258 36.3 0.9 9.4 - 11.7 0.1 14.6
750 - 999 lbs 2,333 1.6 465 0.3 110 0.4 236 13.3 0.3 11.3 0.1 12.4 0.1 9.5
1,000 - 9,999 lbs 35,631 24.6 10,388 6.8 2,568 10.1 244 12.3 1.4 6.1 0.7 8.1 0.9 5.7
10,000 - 49,999 lbs 81,067 55.9 97,407 63.5 18,813 74.0 197 8.5 1.7 10.6 2.5 6.8 1.5 7.3
50,000 - 99,999 lbs 10,201 7.0 38,485 25.1 2,537 10.0 65 18.0 1.4 12.8 2.3 7.8 0.8 12.0
More than 100,000 lbs 1,336 0.9 5,191 3.4 S S 254 37.4 0.4 49.2 1.7 S S 19.1

For-hire truck

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 102,186 100 80,384 100 19,913 100 428 8.2 - 4.9 - 6.6 - 4.0
Less than 50 lbs 360 0.4 9 - 4 - 520 15.0 0.1 16.0 - 19.7 - 12.7
50 - 99 lbs 342 0.3 16 - 9 - 566 10.3 0.1 13.0 - 16.7 - 7.3
100 - 499 lbs 3,969 3.9 282 0.4 165 0.8 593 10.4 0.5 8.2 - 12.3 0.1 6.2
500 - 749 lbs 3,336 3.3 174 0.2 100 0.5 571 49.1 1.2 11.3 - 14.7 0.1 5.7
750 - 999 lbs 1,448 1.4 157 0.2 86 0.4 550 20.3 0.3 14.6 - 13.8 0.1 8.9
1,000 - 9,999 lbs 24,242 23.7 4,939 6.1 2,036 10.2 438 16.6 2.0 11.9 0.7 10.7 1.0 6.0
10,000 - 49,999 lbs 61,091 59.8 53,508 66.6 15,142 76.0 296 7.5 2.4 5.3 2.1 7.3 2.0 5.1
50,000 - 99,999 lbs 6,500 6.4 19,752 24.6 1,542 7.7 75 24.7 1.6 12.6 2.4 8.7 1.1 14.1
More than 100,000 lbs S S 1,547 1.9 S S 398 S S 47.1 1.0 S S 13.7

Private truck

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 42,916 100 73,088 100 5,523 100 75 10.0 - 15.0 - 10.7 - 8.6
Less than 50 lbs 1,342 3.1 46 0.1 3 0.1 61 21.9 0.4 14.9 - 18.6 - 13.4
50 - 99 lbs 788 1.8 86 0.1 7 0.1 77 19.3 0.2 23.1 - 25.0 - 27.1
100 - 499 lbs 3,339 7.8 617 0.8 49 0.9 75 8.9 0.7 12.9 0.2 14.9 0.2 10.7
500 - 749 lbs 1,059 2.5 305 0.4 23 0.4 76 16.1 0.4 16.9 0.1 21.4 0.1 11.6
750 - 999 lbs 885 2.1 308 0.4 24 0.4 78 14.9 0.3 12.9 0.1 19.5 0.1 9.8
1,000 - 9,999 lbs 11,389 26.5 5,449 7.5 532 9.6 96 11.2 2.4 8.1 1.2 8.6 1.1 10.8
10,000 - 49,999 lbs 19,975 46.5 43,899 60.1 3,671 66.5 86 13.1 1.9 19.2 4.0 13.2 3.2 9.0
50,000 - 99,999 lbs 3,702 8.6 18,733 25.6 995 18.0 53 10.3 1.0 15.4 3.6 15.5 2.5 12.0
More than 100,000 lbs 438 1.0 3,644 5.0 S S 84 28.4 0.2 49.8 2.6 S S 26.0

Rail

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 10,845 100 43,395 100 11,434 100 448 43.5 - 27.7 - 22.6 - 13.2
Less than 50 lbs - - - - - - - - - - - - - -
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs - - - - - - - - - - - - - -
500 - 749 lbs S S S S S S S S S S S S S S
750 - 999 lbs S S S S S S S S S S S S S S
1,000 - 9,999 lbs 10 0.1 3 - S S 606 49.9 0.6 44.0 - S S 40.7
10,000 - 49,999 lbs 481 4.4 445 1.0 250 2.2 S 42.1 2.4 35.5 0.2 49.8 0.8 S
50,000 - 99,999 lbs 186 1.7 305 0.7 43 0.4 S 40.1 1.1 38.7 0.3 47.8 0.2 S
More than 100,000 lbs 10,168 93.8 42,643 98.3 11,139 97.4 445 45.7 3.2 27.8 0.3 22.8 0.8 11.4

Water

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 264 100 6,587 100 900 100 S 15.8 - 33.8 - 40.8 - S
Less than 50 lbs - - - - - - - - - - - - - -
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs S S S S S S S S S S S S S S
500 - 749 lbs S S S S S S S S S S S S S S
750 - 999 lbs S S S S S S S S S S S S S S
1,000 - 9,999 lbs S S S S S S S S S S S S S S
10,000 - 49,999 lbs S S S S S S S S S S S S S S
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs 207 78.6 6,562 99.6 880 97.8 S 26.7 16.5 34.1 17.2 42.7 16.2 S

Shallow draft

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 264 100 6,587 100 900 100 S 15.8 - 33.8 - 40.8 - S
Less than 50 lbs - - - - - - - - - - - - - -
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs S S S S S S S S S S S S S S
500 - 749 lbs S S S S S S S S S S S S S S
750 - 999 lbs S S S S S S S S S S S S S S
1,000 - 9,999 lbs S S S S S S S S S S S S S S
10,000 - 49,999 lbs S S S S S S S S S S S S S S
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs 207 78.6 6,562 99.6 880 97.8 S 26.7 16.5 34.1 17.2 42.7 16.2 S

Air (incl truck and air)

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 367 100 S S 24 100 1,056 31.6 - S S 43.2 - 18.3
Less than 50 lbs 56 15.4 - 1.6 S S 947 48.8 4.1 48.9 1.1 S S 10.8
50 - 99 lbs S S S S S S 1,479 S S S S S S 15.9
100 - 499 lbs 117 32.0 3 10.9 4 18.7 1,284 47.2 10.2 47.4 13.0 45.4 12.6 26.3
500 - 749 lbs S S 1 3.7 S S 849 S S 47.8 10.6 S S 30.9
750 - 999 lbs S S S S S S 1,603 S S S S S S 13.2
1,000 - 9,999 lbs 24 6.5 3 11.9 4 15.8 983 45.3 9.1 25.8 12.9 35.7 8.4 19.5
10,000 - 49,999 lbs S S S S S S 795 S S S S S S 18.4
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs - - - - - - - - - - - - - -

Pipeline5

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 5,911 100 8,589 100 S S S 43.9 - 43.7 - S S S
Less than 50 lbs - - - - - - - - - - - - - -
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs - - - - - - - - - - - - - -
500 - 749 lbs - - - - - - - - - - - - - -
750 - 999 lbs - - - - - - - - - - - - - -
1,000 - 9,999 lbs - - - - - - - - - - - - - -
10,000 - 49,999 lbs - - - - - - - - - - - - - -
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs 5,911 100.0 8,589 100.0 S S S 43.9 - 43.7 - S S S

Multiple modes

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 14,322 100 11,025 100 6,679 100 672 14.2 - 25.0 - 23.2 - 6.6
Less than 50 lbs 7,287 50.9 115 1.0 75 1.1 668 16.8 5.5 11.1 0.5 13.2 0.3 7.3
50 - 99 lbs 1,318 9.2 48 0.4 32 0.5 672 18.7 1.2 11.6 0.2 14.7 0.2 4.3
100 - 499 lbs 1,345 9.4 102 0.9 72 1.1 736 17.8 1.1 22.4 0.5 18.8 0.4 6.9
500 - 749 lbs 116 0.8 15 0.1 13 0.2 865 35.8 0.3 38.6 0.1 29.7 0.1 25.9
750 - 999 lbs 99 0.7 7 0.1 9 0.1 S 49.9 0.4 38.5 - 38.9 0.1 S
1,000 - 9,999 lbs 123 0.9 20 0.2 44 0.7 1,792 23.1 0.6 21.9 0.1 23.4 0.4 26.4
10,000 - 49,999 lbs 1,101 7.7 942 8.5 845 12.7 1,035 25.7 2.8 42.7 4.2 23.1 7.8 22.5
50,000 - 99,999 lbs 177 1.2 S S S S S 37.3 0.9 S S S S S
More than 100,000 lbs 2,756 19.2 7,272 66.0 5,160 77.3 828 37.6 4.4 22.8 8.0 30.2 9.2 20.5

Parcel, U.S.P.S. or courier

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 10,114 100 285 100 197 100 672 14.8 - 14.7 - 14.6 - 6.7
Less than 50 lbs 7,286 72.0 115 40.4 75 38.1 668 16.8 3.9 11.1 2.9 13.2 2.6 7.3
50 - 99 lbs 1,318 13.0 48 16.7 32 16.3 672 18.7 1.9 11.6 1.0 14.7 1.0 4.3
100 - 499 lbs 1,343 13.3 102 35.7 71 36.3 734 17.8 2.1 22.4 2.7 18.7 3.0 6.9
500 - 749 lbs 116 1.1 15 5.2 12 6.1 786 36.1 0.4 39.2 1.0 34.0 1.7 23.6
750 - 999 lbs S S 6 1.9 S S 1,114 S S 45.6 0.8 S S 24.8
1,000 - 9,999 lbs S S S S S S S S S S S S S S
10,000 - 49,999 lbs - - - - - - - - - - - - - -
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs - - - - - - - - - - - - - -

Truck and rail

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 3,865 100 8,812 100 5,666 100 589 29.2 - 24.8 - 29.5 - 33.8
Less than 50 lbs 1 - S S S S 91 20.7 0.1 S S S S 17.5
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs S S S S S S S S S S S S S S
500 - 749 lbs S S S S S S S S S S S S S S
750 - 999 lbs S S S S S S S S S S S S S S
1,000 - 9,999 lbs 80 2.1 16 0.2 26 0.5 1,188 30.9 1.7 28.4 0.1 43.1 0.5 29.8
10,000 - 49,999 lbs 933 24.1 877 10.0 750 13.2 960 25.5 10.4 46.6 8.6 25.0 11.3 23.3
50,000 - 99,999 lbs 136 3.5 S S S S S 45.6 4.3 S S S S S
More than 100,000 lbs 2,712 70.2 5,639 64.0 4,553 80.4 837 38.6 11.1 26.9 10.8 37.0 12.7 20.3

Truck and water

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 242 100 372 100 216 100 1,969 39.6 - 40.0 - 33.1 - 42.4
Less than 50 lbs S S S S S S S S S S S S S S
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs S S S S - 0.1 S S S S S 10.7 6.1 S
500 - 749 lbs S S S S S S S S S S S S S S
750 - 999 lbs S S - - 1 0.5 8,611 S S 22.7 1.9 17.5 4.4 5.8
1,000 - 9,999 lbs S S 4 0.9 15 7.0 4,118 S S 17.4 19.4 28.5 19.6 25.2
10,000 - 49,999 lbs S S S S S S S S S S S S S S
50,000 - 99,999 lbs S S 224 60.1 92 42.6 S S S 26.2 16.4 23.1 17.2 S
More than 100,000 lbs S S S S S S S S S S S S S S

Rail and water

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 96 100 1,547 100 577 100 1,683 42.6 - 40.3 - 38.1 - 40.6
Less than 50 lbs - - - - - - - - - - - - - -
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs - - - - - - - - - - - - - -
500 - 749 lbs - - - - - - - - - - - - - -
750 - 999 lbs S S S S S S S S S S S S S S
1,000 - 9,999 lbs - - - - - - - - - - - - - -
10,000 - 49,999 lbs S S S S S S S S S S S S S S
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs S S 1,542 99.7 567 98.3 367 S S 24.6 0.2 23.6 1.2 1.7

Other multiple modes

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total S S S S S S 3,000 S S S S S S 19.2
Less than 50 lbs - - - - - - - - - - - - - -
50 - 99 lbs - - - - - - - - - - - - - -
100 - 499 lbs - - - - - - - - - - - - - -
500 - 749 lbs - - - - - - - - - - - - - -
750 - 999 lbs - - - - - - - - - - - - - -
1,000 - 9,999 lbs S S S S S S S S S S S S S S
10,000 - 49,999 lbs S S S S S S S S S S S S S S
50,000 - 99,999 lbs - - - - - - - - - - - - - -
More than 100,000 lbs S S S S S S 1,483 S S S S S S -

Other and unknown modes

Shipment Weight Value Tons Ton-miles2 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
CV3 Standard Error of % CV Standard Error of % CV Standard Error of %
Total 2,858 100 3,196 100 458 100 107 20.6 - 46.5 - 27.5 - 29.8
Less than 50 lbs 94 3.3 3 0.1 - - 48 30.7 2.4 29.1 0.5 46.7 0.1 28.4
50 - 99 lbs 56 2.0 3 0.1 S S S 50.0 1.3 28.4 0.3 S S S
100 - 499 lbs 70 2.5 10 0.3 S S 141 26.8 1.1 20.8 0.4 S S 46.5
500 - 749 lbs S S 3 0.1 S S 233 S S 31.3 0.7 S S 40.5
750 - 999 lbs 12 0.4 4 0.1 S S 442 41.0 0.6 41.8 0.2 S S 35.8
1,000 - 9,999 lbs 572 20.0 98 3.1 42 9.1 437 22.2 5.2 21.9 3.8 22.6 4.0 14.2
10,000 - 49,999 lbs 922 32.2 622 19.4 177 38.6 S 31.0 6.1 34.6 9.8 31.9 9.7 S
50,000 - 99,999 lbs 547 19.1 876 27.4 75 16.4 S 31.3 8.3 29.8 14.3 29.9 12.9 S
More than 100,000 lbs 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 Ton-miles estimates are based on estimated distances traveled along a modeled transportation network.
3 Coefficient of Variation.
4 ""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.
5 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 mode have no data. For example, since Denver-Aurora-Boulder by "Water" has no data for any shipment weight group, the entire mode of "Water" for that area was removed from this table. However, if a mode has at least one row of data for one of the shipment weight groups, then the entire mode is shown even though there may be rows absent of data within that mode. For example, Denver-Aurora-Boulder by "Other and unknown modes" has a row absent of data for the shipment size of "More than 100,000 lbs" but does have data for the other shipment weight groups under that mode so it will be shown in its entirety.

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.