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 9.5 15.2 21.5 20.3
Single modes 6.1 3.8 12.7 3.1 16.0 3.9 14.7
Truck 5.5 3.6 11.3 1.3 15.9 0.4 11.9
For-hire truck 10.0 1.7 17.4 0.5 18.8 0.3 10.8
Private truck 7.3 3.0 13.7 1.0 23.3 0.1 13.5
Rail 11.4 3.2 14.1 3.5 16.3 3.7 2.7
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 45.8 S S S S 13.2
Pipeline S S 38.5 0.5 S S S
Multiple modes 45.4 3.9 S S S S 12.2
Parcel, USPS or courier S S 28.8 34.2 12.3
Truck and rail 34.5 0.1 S S S S 21.5
Truck and water
Rail and water S S S S S S 28.1
Other Multiple modes S S S S S S 31.6
Other and unknown modes 22.7 0.8 S S 35.9 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 S S S S S S 34.4
Single modes S S S S S S 34.4
Truck S S S S S S 41.3
For-hire truck S S S S S S 29.8
Private truck S S S S S S 38.2
Rail S S S S S S 29.8
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 27.7
Single modes S S S S S S 27.7
Truck S S S S S S 29.5
For-hire truck S S S S S S 29.4
Private truck S S S S S S 30.3
Rail S S S S S S 28.2
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

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 48.4 S
Single modes S S S S 48.5 S
Truck S S S S 44.9 13.1 S
For-hire truck S S S S S S S
Private truck S S S S 47.2 14.4 S
Rail S S S S S S 26.0
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 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 S S S S S S S
Single modes S S S S S S 31.6
Truck S S S S S S 31.6
For-hire truck
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 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 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
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

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 24.4 23.1 28.0 S
Single modes 24.4 23.1 0.2 27.9 0.2 S
Truck 27.6 15.8 26.1 15.5 38.5 14.1 S
For-hire truck 37.7 13.3 34.2 13.6 45.6 14.8 25.7
Private truck 42.2 10.5 48.0 10.2 40.0 5.1 S
Rail 44.2 15.8 43.4 15.5 45.4 14.1 21.2
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 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 46.8 S S S S 29.0
Single modes 46.8 S S S S 29.0
Truck 46.8 S S S S 29.0
For-hire truck 43.6 7.9 44.6 11.9 45.4 9.0 25.9
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
Parcel, USPS or courier
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

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 28.1
Single modes S S S S S S 28.1
Truck S S S S S S 28.1
For-hire truck
Private truck S S S S S S 28.1
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

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 31.6
Single modes S S S S S S 31.6
Truck S S S S S S 31.6
For-hire truck
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
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 30.0 38.5 S S 28.0
Single modes 30.1 0.3 38.4 0.7 S S 27.9
Truck 30.1 0.3 38.4 0.7 S S 27.9
For-hire truck S S S S S S 44.0
Private truck 32.7 9.4 43.1 5.8 S S 32.0
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 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 42.3 44.2 S S 39.2
Single modes 43.2 3.4 44.8 3.5 S S 38.2
Truck 42.3 3.6 42.5 4.3 S S 39.5
For-hire truck S S S S S S 31.0
Private truck 34.3 10.9 37.3 10.6 S S 40.6
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 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 47.1 44.3 44.5 13.9
Single modes 47.5 0.7 44.5 0.3 44.7 0.3 14.1
Truck 49.2 8.4 S S S S 17.8
For-hire truck S S S S S S 7.2
Private truck 50.0 0.8 S S S S S
Rail S S S S S S 4.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S S S S S
Multiple modes 43.7 0.7 37.0 0.3 41.0 0.3 24.7
Parcel, USPS or courier
Truck and rail 45.3 0.7 44.1 0.2 47.2 0.2 26.7
Truck and water
Rail and water S S S S S S 31.6
Other Multiple modes
Other and unknown modes S S S S S S 33.4

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 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 29.8
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 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 15.9 16.9 22.6 35.7
Single modes 14.2 3.6 14.0 3.4 16.9 4.1 39.4
Truck 41.7 2.6 38.1 1.3 42.2 0.2 17.2
For-hire truck S S 41.5 0.6 S S 19.9
Private truck S S S S S S 20.5
Rail 14.0 5.1 14.6 4.1 16.9 4.0 5.4
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 29.7
Parcel, USPS or courier
Truck and rail S S S S S S 31.6
Truck and water
Rail and water S S S S S S 29.8
Other Multiple modes S S S S S S 31.6
Other and unknown modes 40.1 2.1 S S 38.2 S

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 26.9 27.9 26.1 37.6
Single modes 27.6 6.5 28.4 6.0 26.2 4.2 35.5
Truck 23.0 11.1 22.4 11.3 32.4 13.6 35.8
For-hire truck 40.1 4.8 37.3 8.2 41.2 6.7 24.3
Private truck 25.7 11.4 25.5 11.3 38.2 11.6 40.2
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S S 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 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 24.5 23.2 21.2 36.4
Single modes 24.9 2.2 23.6 2.0 21.2 0.3 35.2
Truck 10.9 8.8 11.0 8.6 22.0 9.6 35.1
For-hire truck 23.6 7.7 26.7 7.6 36.6 6.0 22.2
Private truck 18.4 8.4 18.5 8.5 18.8 9.1 47.3
Rail S S S S S S 28.2
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S S 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 30.3

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 23.9 28.2 34.7 31.9
Single modes 24.4 2.2 28.2 1.1 34.7 30.0
Truck 24.4 9.1 28.0 7.2 35.9 6.6 24.7
For-hire truck 44.7 4.8 45.9 6.7 45.1 4.6 21.8
Private truck 34.4 9.4 32.8 7.1 28.6 3.0 29.5
Rail 36.8 6.9 31.3 6.8 35.4 6.6 11.3
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S S 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 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 25.8 34.4 39.1 46.7
Single modes 25.9 0.4 34.4 39.1 0.1 45.3
Truck 21.8 10.3 26.1 9.9 36.2 9.8 S
For-hire truck 29.3 11.8 24.6 4.5 35.5 6.9 15.4
Private truck 46.8 7.3 35.9 8.1 48.5 3.1 S
Rail 46.2 10.6 45.4 9.7 41.6 10.8 14.7
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.6
Pipeline S S S S S S S
Multiple modes S S S S S S 34.3
Parcel, USPS or courier S S S S S S 30.9
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 42.3

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 S S 33.3
Single modes S S S S S S 42.9
Truck S S S S S S 42.9
For-hire truck
Private truck S S S S S S 42.9
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

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 42.8 36.8 43.2 21.8
Single modes 42.8 36.8 43.2 21.8
Truck 32.1 12.3 32.0 9.2 36.2 13.2 20.6
For-hire truck 40.9 9.1 41.1 8.9 42.8 10.0 22.3
Private truck 40.9 10.5 S S 47.8 10.3 21.9
Rail S S 46.7 9.2 46.8 13.2 25.8
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 41.4 47.6 30.2 S
Single modes 40.8 2.3 48.2 5.5 32.7 7.4 S
Truck 43.3 3.9 S S 31.1 6.1 S
For-hire truck 26.8 8.4 37.1 9.9 33.3 5.3 19.1
Private truck S S S S 43.9 6.6 S
Rail 39.1 5.2 34.3 4.6 37.7 8.4 21.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S 41.6 5.5 44.1 7.4 S
Parcel, USPS or courier S S S S S S S
Truck and rail 42.9 2.7 42.1 5.5 44.1 7.4 26.0
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 47.3

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 34.0 S S S S 27.8
Single modes 41.1 14.7 S S S S S
Truck 41.2 14.8 S S S S 35.9
For-hire truck S S S S S S 26.0
Private truck 34.2 11.4 32.5 14.7 33.9 12.2 10.9
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 37.4 12.0 32.9 11.5 36.1 16.3 17.9
Parcel, USPS or courier 37.4 12.0 32.9 11.5 36.1 16.3 17.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 44.8

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 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 31.6
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 29.8

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 34.9 49.9 49.3 14.7
Single modes 35.3 1.7 S S 49.3 15.0
Truck 37.1 7.2 S S S S 17.0
For-hire truck 43.6 9.1 S S S S 10.2
Private truck 46.7 6.4 22.5 10.0 37.4 2.7 21.1
Rail 33.3 5.6 16.9 4.4 16.9 10.5 4.3
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 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 S S S S S S S
Single modes S S S S S S 40.4
Truck S S S S S S 40.4
For-hire truck
Private truck S S S S S S 40.4
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 30.0
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 S S S S S S 38.4

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 39.1 40.6 40.7 S
Single modes 49.5 15.8 46.4 16.6 S S 22.5
Truck 49.5 15.8 46.4 16.6 S S 22.5
For-hire truck S S S S S S 31.6
Private truck S S S S S S 22.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes 33.9 16.4 37.5 16.8 S S 31.3
Parcel, USPS or courier 33.9 16.4 37.5 16.8 S S 31.3
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 37.6

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 33.9 S S S S 41.9
Single modes S S S S S S S
Truck S S S S S S 23.7
For-hire truck S S S S S S 39.6
Private truck 48.8 10.3 48.9 13.8 S S 26.6
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 47.4 17.6 S S 46.2
Parcel, USPS or courier S S 47.4 17.6 S S 46.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 44.6 7.6 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 47.2 36.5 39.8 12.8
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 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 47.5 11.8 40.6 14.9 40.7 7.0 9.1
Parcel, USPS or courier 47.5 11.8 40.6 14.9 40.7 7.0 9.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 30.5

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 26.1 32.5 12.2 45.5
Single modes 28.7 10.3 32.9 2.4 12.1 0.7 S
Truck 31.9 11.1 36.6 12.8 17.2 11.8 S
For-hire truck 35.3 10.9 46.7 10.0 26.2 12.0 49.7
Private truck S S S S S S 39.4
Rail 41.5 4.7 41.3 7.4 41.7 9.8 26.1
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 37.7 0.2 45.4 25.6
Parcel, USPS or courier S S 37.7 0.2 45.4 25.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 39.3

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 42.7 S S S S S
Single modes 48.8 11.8 S S S S 37.8
Truck 48.8 11.8 S S S S 37.8
For-hire truck S S S S S S 31.2
Private truck 41.3 10.9 S S S S 23.4
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 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 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 43.9 40.1 35.9 36.8
Single modes 48.6 6.6 41.3 4.3 35.9 3.1 S
Truck S S 43.3 5.2 32.1 7.1 S
For-hire truck 26.5 11.4 29.1 13.3 35.9 9.9 29.0
Private truck S S S S S S 36.2
Rail S S S S S S 29.8
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 37.0 3.9 38.4 0.2 S S 20.5
Parcel, USPS or courier 37.0 3.9 38.4 0.2 S S 20.5
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 20.1 22.8 17.2 22.0
Single modes 24.9 8.7 24.0 7.2 18.4 5.7 38.8
Truck 25.1 8.7 24.0 7.2 19.1 6.6 39.1
For-hire truck 37.3 3.0 S S 33.1 6.8 20.1
Private truck 26.0 10.2 25.1 9.2 22.2 9.9 15.4
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 40.7 5.6 40.9 1.8 44.2 5.5 10.7
Parcel, USPS or courier 40.7 5.6 40.9 1.8 44.2 5.5 10.7
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 42.6

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 29.0 S S 23.6
Single modes 20.0 19.4 36.4 10.2 31.1 14.3 S
Truck 21.5 18.2 37.4 10.5 29.4 13.5 S
For-hire truck 44.5 11.4 33.9 8.8 40.1 10.5 22.5
Private truck 34.5 14.2 40.9 13.0 36.5 13.5 43.8
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 20.8
Pipeline S S S S S S S
Multiple modes S S S S S S 19.7
Parcel, USPS or courier S S S S S S 19.7
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 46.7 4.4 S S 46.5 0.3 37.5

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 28.4 29.7 36.1 22.0
Single modes 43.5 11.2 42.3 11.5 46.0 12.3 38.5
Truck 43.5 11.2 42.3 11.5 46.6 12.3 26.3
For-hire truck S S S S S S 26.1
Private truck 46.5 11.1 45.6 11.2 49.6 11.8 30.0
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 39.2 4.6 40.4 2.0 39.5 1.6 23.2
Parcel, USPS or courier 39.2 4.6 40.4 2.0 39.5 1.6 23.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 34.7

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 S S S S 25.9
Single modes S S S S S S 31.7
Truck S S S S S S 40.9
For-hire truck
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 31.6
Pipeline S S S
Multiple modes 48.9 9.6 S S 49.4 12.2 25.8
Parcel, USPS or courier 48.9 9.6 S S 49.4 12.2 25.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 28.8

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 36.0 S S S S 31.6
Single modes 49.8 11.5 S S S S 28.1
Truck 49.8 11.5 S S S S 28.1
For-hire truck
Private truck 49.8 11.5 S S S S 28.1
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes 43.6 11.4 49.2 19.5 S S 19.0
Parcel, USPS or courier 43.6 11.4 49.2 19.5 S S 19.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 25.6
Single modes S S S S S S 34.1
Truck S S S S S S 34.1
For-hire truck
Private truck S S S S S S 34.1
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 43.0

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 18.9 18.0 25.6 11.9
Single modes 36.2 10.2 23.7 9.4 26.6 10.6 S
Truck 35.8 9.7 23.6 9.4 26.4 10.5 S
For-hire truck 42.9 7.2 S S 46.8 8.0 17.8
Private truck 42.4 9.4 25.8 12.5 34.9 12.2 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 26.1
Pipeline S S S
Multiple modes 33.5 10.3 49.4 9.1 S S 8.0
Parcel, USPS or courier 30.8 9.3 37.5 8.0 38.9 9.0 8.0
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 35.1

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 30.5
Single modes S S S S S S 30.5
Truck S S S S S S 30.5
For-hire truck S S S S S S 31.6
Private truck S S S S S S 30.6
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 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 27.1 S S S S S
Single modes 27.7 8.9 S S S S S
Truck 27.7 8.9 S S S S S
For-hire truck S S S S S S 29.1
Private truck 31.4 9.9 34.2 17.6 S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes 26.3 9.7 S S S S 41.6
Parcel, USPS or courier 29.4 10.0 28.6 11.0 38.3 17.2 42.2
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

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 38.1 S S S S 46.5
Single modes 42.9 12.8 S S S S S
Truck S S S S S S S
For-hire truck S S S S S S 38.7
Private truck S S S S S S S
Rail S S S S S S 31.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S 43.3 14.8 36.4
Parcel, USPS or courier S S S S 43.3 14.8 36.4
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.