Table 9. Shipment Characteristics by Mode of Transportation for State of Origin: 2002 and 1997

Table 9. Shipment Characteristics by Mode of Transportation for State of Origin: 2002 and 1997

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

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Mode of transportation1 Value Tons Ton-miles2 Average miles per shipment
2002
(million $)
1997
(million $)
Percent Change 1997-2002 2002
(thousands)
1997
(thousands)
Percent Change 1997-2002 2002
(millions)
1997
(millions)
Percent Change 1997-2002 2002 (average miles) 1997 (average miles) Percent change 1997-2002
All modes 31,191 30,669 1.7 33,751 34,546 −2.3 4,773 5,428 −12.1 795 586 35.6
Single modes 21,714 21,396 1.5 31,556 33,734 −6.5 3,843 4,823 −20.3 373 204 82.9
Truck 19,541 18,848 3.7 30,651 33,046 −7.2 3,711 4,459 −16.8 337 146 130.9
Rail S 71 S S S S S S S 1,600 646 147.6
Water S S S S S S 226
Air (including truck and air) 1,887 2,477 −23.8 9 28 −69.8 10 S S 1,555 1,618 −3.9
Pipeline3 S S S S S S S S S S
Multiple modes 8,361 8,287 0.9 163 134 21.0 143 176 −18.9 1,043 1,014 2.9
Parcel, USPS or courier 8,341 8,024 4.0 159 110 43.8 131 101 30.1 1,043 1,014 2.9
Truck and rail S S S S 24 S S 71 S 3,035 2,810 8.0
Other Multiple modes 3 S S S S S S S S S S S
Other and unknown modes 1,115 986 13.1 S 677 S S 428 S 392 171 129.7

KEY:
– Represents data cell equal to zero or less than 1 unit of measure.
S Estimate does not meet publication standards because of high sampling variability or poor response quality.

1 Estimates represent activity for a given mode across single and multiple mode shipments. For example, "Truck" ton-miles includes total ton-miles for shipments moving only by truck plus ton-miles for truck segments of multiple mode shipments.
2 Ton-miles estimates are based on estimated distances traveled along a modeled transportation network. See "Mileage Calculations" section for additional information.
3 Estimates exclude shipments of crude petroleum (SCTG 16).

NOTES: Value-of-shipments estimates have not been adjusted for price changes. Appendix B tables provide estimated measures of sampling variability. The Introduction and appendixes give information on confidentiality protection, sampling error, nonsampling error, sample design, and definitions. Links to this information on the Internet may be found at www.census.gov/cfs.
Coverage for the 2002 Commodity Flow Survey (CFS) differs from the previous surveys due to a change from the 1987 Standard Industrial Classification System to the 1997 North American Industry Classification System and other survey improvements. Therefore, data users are urged to use caution when comparing 2002 CFS estimates with estimates from prior years.

SOURCE: Bureau of Transportation Statistics (USDOT) and U.S. Census Bureau, 2002 Commodity Flow Survey, Individual State Data, December 2004.