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 13.4 25.3 10.5 19.8
Single modes 14.3 1.3 25.6 0.4 11.1 1.0 18.4
Truck 14.8 1.5 27.1 2.0 11.5 5.9 15.5
For-hire truck 15.4 5.3 11.0 5.6 15.2 5.2 10.5
Private truck 26.9 5.8 38.0 6.6 20.0 4.2 15.9
Rail 26.7 0.4 43.9 1.6 39.4 6.1 15.0
Water S S S S S S 28.9
Shallow draft S S S S S S 28.9
Great Lakes
Deep draft
Air (including truck and air) 36.5 0.5 46.2 42.9 0.1 8.3
Pipeline S S S
Multiple modes 14.8 1.4 14.7 16.2 0.8 10.9
Parcel, USPS or courier 15.4 1.4 22.4 34.2 0.6 11.0
Truck and rail 36.1 36.5 39.7 0.7 29.6
Truck and water S S S S S S 44.1
Rail and water S S S S S S 31.6
Other Multiple modes S S S S S S 31.6
Other and unknown modes 23.0 0.7 29.2 0.4 37.9 0.4 S

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
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 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 28.9 33.0 41.1 45.1
Single modes 28.9 33.0 41.1 45.1
Truck 28.9 0.2 33.0 0.2 41.2 0.4 44.7
For-hire truck 38.4 12.2 37.7 9.6 45.8 7.3 11.8
Private truck S S 44.7 9.5 S S 38.8
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
Parcel, USPS or courier
Truck and rail
Truck and water
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 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 16.1
Private truck S S S S S S 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
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 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 S S 30.9
Single modes S S S S S S 28.7
Truck S S S S S S 28.7
For-hire truck S S S S S S 31.6
Private truck S S S S S S 28.8
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 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 28.9 47.1 45.9 S
Single modes 29.1 2.9 47.4 1.7 46.0 1.8 S
Truck 29.2 2.9 47.5 1.7 44.5 1.9 S
For-hire truck S S 48.7 9.1 S S 20.1
Private truck 34.3 8.9 S S S S 34.7
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 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 S

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 32.5 S S S S 29.0
Single modes 32.9 1.3 S S S S 31.5
Truck 32.9 1.3 S S S S 31.5
For-hire truck S S S S S S 24.2
Private truck 37.9 12.5 39.1 14.3 34.0 17.6 19.8
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 S

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 12.4 15.7 21.3 S
Single modes 12.8 2.5 14.8 2.7 20.7 0.9 S
Truck 13.3 2.6 15.0 2.8 21.8 3.4 S
For-hire truck 18.6 6.9 16.7 6.7 25.2 4.7 7.7
Private truck 21.8 6.5 28.3 6.2 22.4 3.1 41.8
Rail S S S S S S 28.9
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 41.4
Pipeline S S S
Multiple modes S S S S S S 28.9
Parcel, USPS or courier S S S S S S 28.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

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 12.6 22.1 S S S
Single modes 15.8 6.3 25.6 6.9 40.8 16.0 S
Truck 16.2 6.7 26.0 7.3 35.2 17.2 S
For-hire truck S S S S S S S
Private truck 22.9 11.9 30.4 12.2 S S 13.6
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 34.8
Parcel, USPS or courier
Truck and rail S S S S S S 38.2
Truck and water S S S S S S 31.6
Rail and water S S S S S S 31.6
Other Multiple modes
Other and unknown modes S S S S S S 31.6

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 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
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
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 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 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 48.6
Private truck S S S S S S 44.0
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 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 S S S S 48.3 40.8
Single modes S S S S 48.3 0.4 40.8
Truck S S S S S S 41.7
For-hire truck 42.5 14.1 S S S S 24.4
Private truck S S S S S S S
Rail
Water S S S S S S 31.6
Shallow draft S S S S S S 31.6
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 S S S S 37.5 20.4
Single modes S S S S 37.5 20.4
Truck S S S S 41.1 6.0 20.3
For-hire truck 38.0 9.7 40.6 10.0 33.2 11.4 22.3
Private truck S S S S S S 21.5
Rail
Water S S S S S S 29.8
Shallow draft S S S S S S 29.8
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 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 41.2 S S S S S
Single modes 41.2 S S S S S
Truck 41.2 S S S S S
For-hire truck 42.1 4.8 S S S S S
Private truck S S S S 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 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
For-hire truck
Private truck
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
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

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 S S S S S S 19.5
Single modes S S S S S S 19.5
Truck S S S S S S 19.5
For-hire truck S S S S S S 21.8
Private truck 29.1 14.2 29.7 14.0 32.1 15.6 20.1
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 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 39.5 39.2 38.8 47.9
Single modes 39.5 39.2 38.8 47.9
Truck 39.5 39.2 38.8 47.9
For-hire truck S S S S S S 26.0
Private truck S S S S 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 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 25.3 24.6 31.8 48.6
Single modes 25.3 24.6 31.8 48.6
Truck 25.3 24.6 31.8 48.6
For-hire truck 44.7 11.0 45.0 11.4 S S 36.4
Private truck 29.8 11.0 27.5 11.4 25.9 12.7 49.3
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 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 32.5 S S S S 34.6
Single modes 32.7 1.9 S S S S 32.5
Truck 32.6 2.1 S S S S 16.7
For-hire truck 47.7 7.0 S S S S S
Private truck 33.0 8.7 S S S S 16.3
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 S S S S S S 29.8
Parcel, USPS or courier S S S S S S 29.8
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 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 48.1 48.5 46.6 20.6
Single modes 47.8 1.3 48.5 46.6 22.1
Truck 50.0 8.5 40.8 10.0 S S 22.3
For-hire truck S S 40.8 9.6 S S 21.2
Private truck S S S S S S 38.8
Rail S S S S S S 30.4
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 27.2
Pipeline S S S
Multiple modes S S S S S S 21.8
Parcel, USPS or courier S S S S S S 21.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

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 S S S S 49.0 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 30.3
Private truck S S 49.6 11.7 46.1 13.8 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 29.8
Pipeline S S S
Multiple modes S S S S S S S
Parcel, USPS or courier S S S S S S S
Truck and rail
Truck and water S S S S S S 30.7
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.6

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 S S S S S S 29.8
Single modes S S S S S S 29.8
Truck S S S S S S 29.8
For-hire truck S S S S S S 31.6
Private truck S S S S S S 29.9
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 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 16.3 43.3 33.8 S
Single modes 16.3 1.4 44.1 0.9 36.7 4.2 43.3
Truck 16.6 1.8 44.1 1.1 36.8 5.1 35.5
For-hire truck 19.0 5.5 42.4 8.7 38.0 5.8 13.0
Private truck 37.0 4.7 S S S S S
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 30.2
Pipeline S S S
Multiple modes 43.7 1.5 43.8 1.0 S S S
Parcel, USPS or courier S S S S S S S
Truck and rail 45.5 0.7 S S S S 25.0
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 30.8

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 22.8 34.9 40.7 19.6
Single modes 24.4 4.3 35.5 1.8 42.0 2.4 22.2
Truck 24.5 4.5 35.6 1.9 42.3 2.8 21.2
For-hire truck 25.0 4.2 40.4 5.5 43.5 2.8 12.4
Private truck 28.7 2.9 44.1 5.5 33.3 1.5 22.3
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 29.8
Pipeline S S S
Multiple modes 35.2 3.5 S S S S 19.5
Parcel, USPS or courier 35.3 3.5 47.2 1.1 S S 19.9
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 S

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 48.3
Single modes S S S S S S 48.3
Truck S S S S S S 48.3
For-hire truck S S S S S S 32.3
Private truck S S S S 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 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 S S S S 38.6 42.8
Single modes S S S S 40.0 3.1 37.4
Truck S S S S 40.0 3.1 37.4
For-hire truck 36.1 15.8 24.9 12.0 24.1 9.5 48.9
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 S S S S S S 26.2
Parcel, USPS or courier S S S S S S 26.2
Truck and rail S S S S S S 29.8
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S 37.4 0.2 S S 35.1

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 28.7 32.1 38.4 S
Single modes 28.7 0.3 32.1 38.4 0.1 S
Truck 27.8 1.7 30.3 3.8 40.2 6.8 S
For-hire truck 33.2 11.4 35.0 11.5 42.5 13.1 21.6
Private truck 32.4 11.3 33.5 11.4 35.7 14.1 17.3
Rail S S S S S S 29.4
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes 41.7 0.2 S S S S 43.5
Parcel, USPS or courier 41.7 0.2 S S S S 43.5
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

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 22.9 23.1 28.0 26.9
Single modes 27.0 8.1 24.0 2.3 30.9 6.2 26.9
Truck 27.1 8.1 24.1 2.3 31.4 6.5 26.5
For-hire truck 19.0 5.0 17.8 6.9 34.7 6.4 16.6
Private truck 31.0 8.0 31.3 7.5 33.6 5.5 24.7
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 30.2
Parcel, USPS or courier S S S S S S 30.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S 28.8 1.0 43.1 0.8 42.6

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 14.8 23.1 25.5 16.3
Single modes 18.0 3.1 24.5 2.2 27.3 3.7 44.6
Truck 18.1 3.2 24.6 2.3 27.5 3.9 16.1
For-hire truck 18.6 5.6 37.0 8.6 32.4 9.5 10.2
Private truck 26.9 7.1 44.1 8.6 49.7 7.9 23.5
Rail
Water S S S S S S 29.8
Shallow draft S S S S S S 29.8
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 24.5
Pipeline S S S
Multiple modes 19.6 2.9 26.6 2.0 28.6 3.6 16.6
Parcel, USPS or courier 19.6 2.9 26.7 2.0 28.6 3.6 16.6
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 47.1 0.7 37.1 0.4 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 S S 41.8 35.5 9.3
Single modes S S 44.8 6.9 38.8 6.2 18.4
Truck S S 44.9 6.9 38.8 6.2 18.8
For-hire truck S S 47.1 11.5 47.5 9.9 17.4
Private truck S S S S S S 38.0
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 28.4
Pipeline S S S
Multiple modes 34.0 10.4 48.6 6.4 44.8 5.9 10.9
Parcel, USPS or courier 34.0 10.4 48.6 6.4 44.8 5.9 10.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 48.6 0.6 S S S S 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 27.5 38.9 37.2 S
Single modes 27.5 0.2 39.0 0.4 37.4 0.9 S
Truck 27.4 0.9 39.0 0.4 37.4 0.9 S
For-hire truck 41.7 11.3 S S 45.3 15.5 27.0
Private truck 34.5 11.5 45.3 11.3 41.8 15.9 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 35.2
Parcel, USPS or courier S S S S S S 39.1
Truck and rail
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 36.6

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 20.1 32.5 43.1 20.2
Single modes 21.0 3.4 32.8 2.2 43.2 0.3 19.3
Truck 19.0 5.5 24.5 9.4 24.9 16.5 20.7
For-hire truck 23.0 6.8 27.8 7.4 26.9 14.4 11.5
Private truck 37.8 5.8 46.8 6.3 S S 18.7
Rail S S S S S S 26.2
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 30.0
Pipeline S S S
Multiple modes S S S S S S S
Parcel, USPS or courier S S S S S S 38.7
Truck and rail
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 S

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 29.8 44.9 23.8 S
Single modes 28.8 6.2 46.7 3.7 25.9 5.2 S
Truck 29.6 7.9 47.3 5.0 31.6 9.7 S
For-hire truck 39.9 11.8 36.9 12.0 40.4 11.2 28.6
Private truck 43.4 11.6 S S S S 17.0
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 19.3
Pipeline S S S
Multiple modes S S S S S S 20.0
Parcel, USPS or courier S S S S S S 20.0
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 22.9 27.4 30.2 S
Single modes 23.6 5.3 27.7 2.5 31.0 2.8 S
Truck 23.7 5.4 27.7 2.5 31.1 2.9 S
For-hire truck 26.3 8.8 36.8 11.7 33.5 12.3 28.9
Private truck 25.5 7.1 33.1 10.9 35.0 11.2 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 26.8
Pipeline S S S
Multiple modes S S 38.2 0.9 39.2 2.8 28.2
Parcel, USPS or courier S S 38.2 0.9 39.2 2.8 28.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

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 31.9 49.0 39.2 17.0
Single modes 40.6 7.6 S S 47.0 8.8 47.5
Truck 45.2 7.1 S S 44.6 5.8 S
For-hire truck S S S S 45.6 7.2 25.9
Private truck 46.6 4.7 38.8 9.5 49.9 7.7 S
Rail S S S S S S 29.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 45.4 0.5 49.0 2.2 20.3
Pipeline S S S
Multiple modes 22.7 8.0 22.3 5.8 22.1 8.4 13.4
Parcel, USPS or courier 22.7 8.0 22.3 5.8 22.1 8.4 13.4
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

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 21.7 20.2 S S 28.0
Single modes 22.0 13.9 27.5 14.7 S S 32.0
Truck 22.0 13.9 27.5 14.7 S S 31.3
For-hire truck 48.1 12.3 S S S S 47.3
Private truck 32.0 11.2 29.5 12.4 S S 34.7
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 30.0
Pipeline S S S
Multiple modes 28.3 4.5 31.0 3.4 45.7 8.1 23.1
Parcel, USPS or courier 27.2 4.5 31.1 3.4 48.5 8.1 24.4
Truck and rail
Truck and water S S S S S S 31.6
Rail and water
Other Multiple modes
Other and unknown modes 41.3 15.1 41.3 15.7 35.9 9.5 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 26.6 33.2 34.3 15.8
Single modes 28.3 6.8 34.5 2.6 35.0 1.9 15.3
Truck 32.4 10.1 34.8 6.6 35.3 7.0 15.7
For-hire truck 32.4 10.1 34.8 6.6 35.3 7.0 15.0
Private truck S S S S S S 40.9
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 29.8
Pipeline S S S
Multiple modes 32.7 6.8 S S S S 23.7
Parcel, USPS or courier 32.7 6.8 S S S S 23.7
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 46.5 46.2 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 29.2
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 45.3 12.5 S S 48.4 15.6 49.7
Parcel, USPS or courier 45.9 12.6 S S 46.8 16.4 43.3
Truck and rail S S S S S S 32.4
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 34.9

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 S S S S S S 46.0
Single modes S S S S S S 44.7
Truck S S S S S S 44.7
For-hire truck S S S S S S 33.1
Private truck S S S S S S 25.2
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 S
Parcel, USPS or courier S S S S S S S
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 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 23.0 18.7 21.7 17.0
Single modes 26.0 8.6 19.8 4.2 25.1 8.7 S
Truck 26.3 8.6 19.8 4.2 25.0 8.7 S
For-hire truck 45.3 13.4 32.0 9.9 30.0 10.0 20.9
Private truck 37.8 11.2 32.0 10.8 38.1 4.9 32.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 45.5 S S 26.9
Pipeline S S S
Multiple modes 24.8 8.5 42.0 2.8 S S 11.6
Parcel, USPS or courier 26.0 8.6 40.6 2.7 S S 11.6
Truck and rail S S S S S S 29.8
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 29.2

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 24.5
Single modes S S S S S S 21.5
Truck S S S S S S 26.4
For-hire truck S S S S S S 24.2
Private truck S S S S 43.4 6.2 S
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 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 29.9

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 42.0 S S 41.0 39.5
Single modes 43.5 3.2 S S 41.2 2.6 45.2
Truck 44.4 3.0 S S 40.5 5.4 S
For-hire truck 47.8 9.2 36.9 12.8 S S S
Private truck S S S S S S S
Rail S S S S S S 28.4
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 26.4
Pipeline S S S
Multiple modes 35.1 3.2 17.4 0.5 35.3 2.6 42.9
Parcel, USPS or courier 35.1 3.2 17.4 0.5 35.3 2.6 42.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 36.4

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 35.6 31.4 47.8 30.4
Single modes 40.3 14.0 34.2 11.1 S S S
Truck 41.0 13.2 34.2 11.1 S S 45.8
For-hire truck 48.5 14.1 40.8 17.0 S S 43.3
Private truck 47.5 12.8 S S S S 24.3
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 29.3
Pipeline S S S
Multiple modes S S S S S S 32.8
Parcel, USPS or courier S S S S S S 32.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 45.9

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.