Table B-6. Estimated Measures of Reliability for Shipment Characteristics by Two-Digit Commodity and Mode of Transportation for State of Origin: 2002

Table B-6. Estimated Measures of Reliability for Shipment Characteristics by Two-Digit Commodity and Mode of Transportation for State of Origin: 2002

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

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All Commodities

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 20.9 8.9 23.7 20.5
Single modes 12.1 7.6 7.7 3.0 23.6 0.6 25.0
Truck 14.9 7.5 10.0 5.2 13.6 9.9 23.3
For-hire truck 19.7 4.9 13.5 4.0 16.5 6.9 14.3
Private truck 13.1 4.2 14.8 4.6 15.5 3.5 10.5
Rail 24.1 2.0 26.7 5.5 37.0 10.0 12.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 33.5 0.8 44.7 46.8 10.2
Pipeline S S S
Multiple modes 44.6 2.3 S S S S 14.0
Parcel, USPS or courier 45.6 2.4 42.4 S S 14.0
Truck and rail S S S S S S 36.1
Truck and water S S S S S S 30.9
Rail and water
Other Multiple modes S S S S S S 31.1
Other and unknown modes S S S S S S 31.3

SCTG 1, Live animals and live fish

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 32.9 31.9 43.9 29.0
Single modes 32.9 31.9 43.9 29.0
Truck 32.9 31.9 43.9 29.0
For-hire truck 40.0 8.9 38.2 9.2 46.4 2.6 22.1
Private truck 46.6 8.9 46.3 9.2 S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

SCTG 2, Cereal grains

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 21.4 23.5 47.5 40.7
Single modes 21.4 23.5 47.5 0.1 40.7
Truck 29.9 12.5 35.4 12.3 29.8 17.5 S
For-hire truck 33.1 11.0 37.4 10.5 34.8 16.6 28.5
Private truck 42.2 5.1 42.9 5.3 40.2 1.8 21.8
Rail 31.7 12.5 34.9 12.3 S S 28.0
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier
Truck and rail
Truck and water S S S S S S 31.6
Rail and water
Other Multiple modes
Other and unknown modes

SCTG 3, Other agricultural products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 13.9 14.9 25.6 S
Single modes 13.9 0.9 15.0 1.1 25.6 0.1 S
Truck 19.0 10.6 19.0 10.6 22.0 14.1 21.3
For-hire truck 20.7 9.4 21.1 9.4 26.4 11.2 19.7
Private truck 46.9 6.0 45.9 6.1 44.9 5.7 30.5
Rail 37.0 10.7 38.4 10.7 34.6 14.1 19.2
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 44.1

SCTG 4, Animal feed and products of animal origin, nec

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S 40.5 29.8
Single modes S S S S 43.5 7.5 29.2
Truck S S S S 45.6 8.7 29.3
For-hire truck S S S S S S 35.4
Private truck S S S S S S 28.6
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier
Truck and rail S S S S S S 31.6
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 5, Meat, fish, seafood, and their preparations

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 47.7 49.6 S S 24.1
Single modes 48.4 2.1 S S S S 24.1
Truck 47.7 2.0 47.0 2.2 S S 24.1
For-hire truck 45.9 2.2 45.0 3.1 S S 24.1
Private truck S S S S S S 31.6
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 6, Milled grain products and preparations, and bakery products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S S
Single modes S S S S S S S
Truck S S S S S S S
For-hire truck S S S S S S 29.9
Private truck S S S S S S 29.3
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 30.3
Parcel, USPS or courier S S S S S S 30.3
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 7, Other prepared foodstuffs and fats and oils

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 24.3 23.6 33.2 S
Single modes 24.6 1.1 23.6 33.3 0.7 S
Truck 25.8 8.2 28.5 9.1 30.7 13.0 48.7
For-hire truck 47.6 12.5 S S 42.4 14.2 S
Private truck 33.4 13.3 25.8 12.6 49.4 18.0 S
Rail S S S S S S 30.1
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.7
Parcel, USPS or courier S S S S S S 31.7
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 30.3

SCTG 8, Alcoholic beverages

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 24.2 40.6 S S 19.0
Single modes 24.1 7.7 18.9 11.0 S S 16.0
Truck 24.6 8.3 11.8 13.0 S S 15.6
For-hire truck 49.3 1.5 S S 43.6 6.5 24.7
Private truck 25.5 8.7 10.0 14.2 S S 17.2
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier
Truck and rail S S S S S S 31.6
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 35.9 6.5 S S S S 27.3

SCTG 9, Tobacco products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S 26.8
Single modes S S S S S S 26.8
Truck S S S S S S 26.8
For-hire truck
Private truck S S S S S S 26.8
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

SCTG 10, Monumental or building stone

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S 28.0
Single modes S S S S S S 28.1
Truck S S S S S S 29.8
For-hire truck
Private truck S S S S S S 29.8
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier
Truck and rail S S S S S S 31.6
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 11, Natural sands

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 48.1 S S S S 23.2
Single modes S S S S S S 22.6
Truck S S S S S S 22.6
For-hire truck S S S S S S 30.7
Private truck S S S S S S 25.1
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 12, Gravel and crushed stone

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 45.3 S S 36.2 48.6
Single modes S S 44.6 8.7 35.4 3.1 44.2
Truck S S 44.7 8.6 35.5 3.1 44.1
For-hire truck S S S S S S S
Private truck S S 46.6 7.0 39.4 6.5 37.9
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 13, Nonmetallic minerals nec

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 36.0 S S 34.1 S
Single modes 36.1 0.4 S S 33.8 0.8 S
Truck 47.4 9.6 S S 28.8 10.9 S
For-hire truck 35.0 9.9 36.2 10.8 36.1 8.9 23.6
Private truck S S S S S S S
Rail 41.9 5.4 41.9 10.9 41.3 12.2 25.9
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier
Truck and rail S S S S S S 31.6
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

SCTG 14, Metallic ores and concentrates

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S 31.6
Single modes S S S S S S 31.6
Truck S S S S S S 31.6
For-hire truck S S S S S S 31.6
Private truck S S S S S S 31.6
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier S S S S S S 31.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 15, Coal

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes
Single modes
Truck
For-hire truck
Private truck
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

SCTG 17, Gasoline and aviation turbine fuel

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 11.0 13.1 15.5 20.2
Single modes 11.0 13.1 15.5 19.7
Truck 11.0 13.1 15.5 19.7
For-hire truck 47.8 4.5 34.3 3.7 24.7 3.6 31.1
Private truck 13.1 4.5 15.5 3.7 17.2 3.6 19.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 27.9

SCTG 18, Fuel oils

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 20.0 20.6 24.2 38.2
Single modes 20.0 20.6 24.2 37.6
Truck 20.0 20.6 24.2 37.6
For-hire truck 41.8 9.4 38.5 9.4 33.6 9.5 38.0
Private truck 22.0 9.4 22.2 9.4 24.9 9.5 34.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 28.0

SCTG 19, Coal and petroleum products, nec

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 45.1 S S S S 24.6
Single modes 45.8 12.9 S S S S 26.6
Truck 45.8 12.9 S S S S 26.6
For-hire truck S S S S S S 42.4
Private truck 42.8 11.4 S S 48.1 9.7 26.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.9
Parcel, USPS or courier S S S S S S 31.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 34.2

SCTG 20, Basic chemicals

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 39.4 34.3 39.8 S
Single modes 39.7 10.0 36.9 9.8 37.7 9.3 S
Truck 39.7 10.0 36.9 9.8 37.7 9.3 S
For-hire truck 40.8 14.3 36.4 10.6 39.1 11.5 25.7
Private truck 48.0 9.5 S S S S 31.4
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S S S S S S
Parcel, USPS or courier S S S S S S 31.6
Truck and rail S S S S S S 27.9
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 29.7

SCTG 21, Pharmaceutical products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 35.2 S S S S 27.4
Single modes S S S S S S 30.8
Truck S S S S S S 31.6
For-hire truck S S S S S S 31.6
Private truck
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 29.9
Pipeline S S S
Multiple modes 40.3 9.2 32.0 15.2 31.4 13.8 26.5
Parcel, USPS or courier 40.3 9.3 32.0 15.2 31.4 13.8 26.5
Truck and rail
Truck and water
Rail and water
Other Multiple modes S S S S S S 31.6
Other and unknown modes S S S S S S 31.2

SCTG 22, Fertilizers

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 43.6 43.9 S S 37.2
Single modes S S S S S S 38.4
Truck S S S S S S 38.4
For-hire truck S S S S S S 31.4
Private truck S S S S S S 38.4
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 23, Chemical products and preparations, nec

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 49.0 S S 26.7 41.6
Single modes S S 34.7 18.4 31.0 15.1 48.6
Truck S S 34.7 18.4 31.0 15.1 48.6
For-hire truck 49.3 4.1 S S S S 30.8
Private truck S S 25.7 16.4 33.9 14.1 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 29.1
Parcel, USPS or courier S S S S S S 29.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 28.6

SCTG 24, Plastics and rubber

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 28.3 39.7 33.0 43.2
Single modes 28.7 2.6 38.3 1.1 33.0 0.4 S
Truck 28.7 2.5 38.3 1.1 33.0 0.4 S
For-hire truck 31.7 7.9 46.7 7.9 34.9 5.1 9.0
Private truck 44.1 8.8 S S S S 40.3
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 27.9
Pipeline S S S
Multiple modes 21.8 1.7 20.6 0.2 29.2 0.4 21.1
Parcel, USPS or courier 22.6 1.7 23.6 0.1 27.3 0.1 21.3
Truck and rail S S S S S S 29.8
Truck and water S S S S S S 31.6
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 25.5

SCTG 25, Logs and other wood in the rough

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S 29.7
Single modes S S S S S S 30.7
Truck S S S S S S 30.7
For-hire truck S S S S S S 31.6
Private truck S S S S S S 30.8
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 26, Wood products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 17.8 15.6 19.2 22.7
Single modes 17.0 7.2 15.8 0.7 19.5 1.2 19.6
Truck 17.7 7.7 16.9 3.0 21.5 5.2 19.8
For-hire truck 24.7 7.1 25.5 6.1 23.9 5.4 8.7
Private truck 25.0 5.9 25.2 5.4 24.0 2.9 14.5
Rail S S S S S S 25.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 27.2
Parcel, USPS or courier S S S S S S 27.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 27, Pulp, newsprint, paper, and paperboard

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 40.6 42.8 S S 23.4
Single modes 40.8 10.5 42.8 10.5 S S 23.5
Truck 40.8 10.5 42.8 10.5 S S 23.5
For-hire truck S S S S S S 31.6
Private truck 40.0 10.3 42.1 10.4 S S 24.1
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 31.6
Parcel, USPS or courier S S S S S S 31.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.1

SCTG 28, Paper or paperboard articles

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 28.7 28.7 32.5 S
Single modes 28.0 0.8 27.6 0.8 32.5 0.1 S
Truck 28.0 0.8 27.6 0.8 32.5 0.1 S
For-hire truck 32.0 12.2 33.1 12.8 33.5 10.2 10.1
Private truck 40.3 11.1 35.7 12.5 36.7 10.0 30.7
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes 30.3 0.4 35.3 41.0 0.1 36.1
Parcel, USPS or courier 30.3 0.4 35.3 41.0 0.1 36.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 36.4

SCTG 29, Printed products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 30.9 S S S S 20.6
Single modes 36.0 14.8 S S S S S
Truck 36.3 14.6 S S S S S
For-hire truck S S S S S S 22.5
Private truck 45.0 10.7 S S S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 49.0 0.4 46.8 0.3 23.9
Pipeline S S S
Multiple modes 47.3 15.4 S S 38.6 18.0 16.8
Parcel, USPS or courier 47.3 15.4 S S 38.6 18.0 16.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

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

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 20.0 27.2 27.4 21.9
Single modes 34.1 12.8 41.2 12.9 S S 46.8
Truck 34.1 12.8 41.2 12.9 S S 46.8
For-hire truck S S S S S S 26.2
Private truck 36.0 11.8 47.0 12.5 47.5 13.6 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes 33.7 9.5 45.7 7.2 35.7 12.4 19.7
Parcel, USPS or courier 33.7 9.5 45.7 7.2 35.7 12.4 19.7
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 36.0 5.6 S S 43.5 7.5 S

SCTG 31, Nonmetallic mineral products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 36.9 S S 40.4 30.4
Single modes 40.0 9.3 S S 40.7 8.4 37.6
Truck 46.0 10.0 S S 38.5 14.0 35.7
For-hire truck S S 38.6 7.6 39.2 11.4 S
Private truck S S S S 40.1 16.1 S
Rail S S S S S S 25.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 30.0
Parcel, USPS or courier S S S S S S 30.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 40.0 9.0 S S S S 46.5

SCTG 32, Base metal in primary or semifinished forms and in finished basic shapes

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 40.8 48.9 S S 25.3
Single modes 38.9 9.8 48.4 9.9 S S 30.7
Truck 38.9 9.8 48.4 9.9 S S 31.9
For-hire truck S S S S S S 24.3
Private truck 38.5 10.3 S S 40.0 14.8 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S S S S S 27.5
Parcel, USPS or courier S S S S S S 27.5
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 41.0

SCTG 33, Articles of base metal

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S 30.9 29.6
Single modes S S S S 30.6 9.3 49.5
Truck S S S S 30.6 9.3 39.2
For-hire truck S S 36.8 15.6 30.8 16.2 19.4
Private truck S S S S S S 24.0
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes 43.6 8.0 41.5 1.5 S S 25.8
Parcel, USPS or courier 43.6 8.0 41.5 1.5 S S 25.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 34, Machinery

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 24.2 20.7 30.6 33.8
Single modes 24.5 3.7 22.5 4.5 33.0 4.3 S
Truck 24.6 3.7 22.5 4.5 33.0 4.3 S
For-hire truck 26.5 4.7 36.7 9.2 36.8 6.1 13.5
Private truck 28.4 6.5 28.6 8.1 28.0 3.4 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 24.9
Pipeline S S S
Multiple modes 37.1 2.1 44.8 0.6 37.0 0.8 18.1
Parcel, USPS or courier 37.1 2.1 44.8 0.6 37.0 0.8 18.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 39.5 4.2 38.9 4.9 S S 34.7

SCTG 35, Electronic and other electrical equipment and components and office equipment

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S 19.9
Single modes 32.4 17.8 30.4 18.3 36.6 17.7 22.2
Truck S S 37.2 15.9 S S 26.1
For-hire truck S S S S S S 18.3
Private truck 29.0 5.9 37.1 16.6 41.1 15.5 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 34.8 13.4 S S S S 15.6
Pipeline S S S
Multiple modes S S S S S S 15.2
Parcel, USPS or courier S S S S S S 15.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.4

SCTG 36, Motorized and other vehicles (including parts)

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 23.0 21.9 28.2 46.2
Single modes 19.2 4.1 21.3 1.8 25.6 2.7 S
Truck 19.3 4.2 21.5 2.1 26.0 2.7 S
For-hire truck 25.6 4.7 27.3 7.3 25.3 6.0 17.1
Private truck 21.5 7.6 23.8 8.9 37.2 5.7 13.3
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes 28.9 3.4 18.6 1.4 25.3 2.3 11.6
Parcel, USPS or courier 28.9 3.4 18.6 1.4 25.3 2.3 11.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 37, Transportation equipment, nec

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S 48.3 S S 29.5
Single modes S S S S S S 33.3
Truck S S S S S S 33.3
For-hire truck S S S S S S 31.6
Private truck S S S S S S 49.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 29.9
Parcel, USPS or courier S S S S S S 29.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 38, Precision instruments and apparatus

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 49.8 34.2 44.2 21.5
Single modes S S S S S S 33.9
Truck S S S S S S S
For-hire truck
Private truck S S S S S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S 34.5 12.0 49.3 10.6 19.6
Parcel, USPS or courier S S 34.5 12.0 49.3 10.6 19.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

SCTG 39, Furniture, mattresses and mattress supports, lamps, lighting fittings

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 36.2 39.7 49.9 22.8
Single modes 38.9 8.1 41.7 8.3 S S 26.9
Truck 38.9 8.1 41.7 8.3 S S 26.9
For-hire truck S S S S 49.6 14.9 24.0
Private truck S S S S S S 31.8
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S S S S S 23.1
Parcel, USPS or courier S S S S S S 23.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 40, Miscellaneous manufactured products

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 38.8 32.1 33.3 15.0
Single modes 46.3 12.7 34.2 11.2 35.5 13.0 21.3
Truck 46.2 12.4 34.4 9.0 33.2 9.2 28.6
For-hire truck 48.8 11.7 35.8 9.6 35.4 10.2 13.2
Private truck 35.7 2.6 S S S S 29.0
Rail S S S S 48.9 9.7 25.9
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 21.2
Pipeline S S S
Multiple modes 31.8 12.3 S S S S 16.6
Parcel, USPS or courier 31.8 12.3 S S S S 16.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 47.1 0.8 S S S S S

SCTG 41, Waste and scrap

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes S S S S S S 32.1
Single modes S S S S S S 32.1
Truck S S S S S S 40.7
For-hire truck S S S S S S 40.7
Private truck
Rail S S S S S S 29.9
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

SCTG 43, Mixed freight

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 23.3 27.0 23.3 23.6
Single modes 27.1 8.9 28.3 3.4 27.6 7.5 S
Truck 27.1 8.9 28.3 3.4 27.6 7.5 S
For-hire truck S S S S S S S
Private truck 33.9 12.2 37.3 11.4 34.6 11.8 23.0
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S S S S S 22.6
Parcel, USPS or courier S S S S S S 22.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes S S S S S S 31.6
Other and unknown modes S S S S S S 40.1

Commodity unknown

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent
CV Std. error
of percent
CV Std. error
of percent
All modes 49.7 S S S S 49.7
Single modes 49.9 2.7 S S S S 39.7
Truck 21.6 14.1 S S S S S
For-hire truck 44.0 14.8 S S S S 39.9
Private truck 37.3 15.4 S S S S 31.8
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S
Multiple modes S S S S S S 36.2
Parcel, USPS or courier S S S S S S 36.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

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.
CV Coefficient of variation of number

NOTE: The Introduction and appendixes give information onf 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.

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