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 13.8 10.3 6.4 14.3
Single modes 15.3 1.4 10.6 1.6 6.5 2.0 10.4
Truck 18.6 3.9 14.2 2.9 11.0 4.0 10.3
For-hire truck 28.2 5.5 21.1 4.4 15.0 4.3 6.1
Private truck 8.9 3.4 13.9 3.3 12.3 1.8 12.3
Rail 34.9 3.4 13.3 2.4 15.2 4.7 11.7
Water 36.7 31.4 0.3 33.5 1.2 18.4
Shallow draft 36.7 31.4 0.3 33.5 1.2 18.4
Great Lakes
Deep draft
Air (including truck and air) 21.9 0.2 S S S S 4.0
Pipeline 25.3 0.9 22.7 1.7 S S S
Multiple modes 13.2 1.2 29.7 0.4 29.9 1.3 6.9
Parcel, USPS or courier 14.5 1.2 19.6 22.5 0.1 6.9
Truck and rail 25.6 32.9 0.4 34.1 1.3 19.6
Truck and water S S 50.0 47.0 27.0
Rail and water
Other Multiple modes S S S S S S 30.2
Other and unknown modes 19.8 0.4 42.3 1.5 47.0 1.3 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 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 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 24.0 S
Single modes S S S S 24.0 S
Truck S S S S S S 47.1
For-hire truck S S S S S S S
Private truck S S S S S S 31.6
Rail
Water S S S S 33.3 12.8 21.1
Shallow draft S S S S 33.3 12.8 21.1
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 46.0 41.0 S S S
Single modes 46.0 41.0 S S S
Truck S S S S S S 30.1
For-hire truck
Private truck S S S S S S 30.1
Rail
Water S S S S S S 27.9
Shallow draft S S S S S S 27.9
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 S S 42.6
Single modes S S S S S S 42.5
Truck S S S S 43.2 11.6 47.3
For-hire truck S S S S S S 21.5
Private truck S S 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)
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 16.4 16.2 20.6 S
Single modes 16.5 0.3 16.2 0.2 20.6 0.2 S
Truck 16.5 0.3 16.2 0.2 20.6 0.2 S
For-hire truck 25.2 10.2 28.1 11.3 29.9 12.4 17.3
Private truck 27.5 10.4 31.1 11.3 27.8 12.3 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 S
Parcel, USPS or courier S S S S S S S
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 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 44.7 36.0 48.4 41.5
Single modes 44.4 1.4 36.0 0.4 47.9 0.5 41.9
Truck 44.6 1.6 36.2 1.5 49.9 3.6 41.9
For-hire truck S S 39.3 13.4 S S 30.0
Private truck 33.2 14.6 31.1 14.0 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 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 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 23.5 S S 46.3 31.3
Single modes 24.8 4.0 S S 47.2 2.9 S
Truck 25.0 3.9 S S 48.6 3.6 S
For-hire truck 32.2 7.8 30.1 10.5 28.4 11.5 20.1
Private truck 33.8 10.2 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 47.8 26.6
Pipeline S S S
Multiple modes S S 44.2 0.5 49.9 2.9 30.1
Parcel, USPS or courier S S S S S S 29.3
Truck and rail S S S S S S 28.0
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 31.3

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 38.6 S S 44.3 24.7
Single modes 39.7 2.8 S S 44.5 0.5 24.6
Truck 39.7 2.8 S S 44.5 0.5 24.6
For-hire truck S S S S S S 30.4
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 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
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 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
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 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 24.8 36.7 26.9 46.3
Single modes 26.3 6.2 38.8 4.5 26.9 1.0 47.8
Truck 23.2 10.4 30.5 8.4 28.7 13.5 43.7
For-hire truck 28.7 7.3 22.1 8.2 29.6 7.0 23.6
Private truck 39.1 8.0 42.5 7.6 44.5 8.1 23.5
Rail 39.5 8.7 S S 32.9 13.1 S
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
Truck and rail S S S S S S 31.9
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 18.3 16.5 18.3 24.3
Single modes 18.8 3.8 16.4 3.6 18.5 0.7 24.1
Truck 20.4 7.5 17.3 7.8 15.3 13.4 27.4
For-hire truck 24.0 9.9 23.2 10.8 34.3 12.0 20.7
Private truck 24.7 6.3 22.5 6.7 23.9 6.7 39.3
Rail 30.5 6.3 29.5 6.7 33.1 13.3 19.3
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 29.2

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 S S S S S S 42.1
Single modes S S S S S S 42.1
Truck S S S S S S 40.9
For-hire truck S S S S S S 40.9
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

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 41.2 41.4 41.2 25.8
Single modes 41.2 41.4 41.2 25.8
Truck 41.2 41.4 41.2 25.8
For-hire truck 41.2 41.4 41.2 25.8
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 39.6 37.0 S S 26.0
Single modes 34.9 4.6 33.5 4.2 49.3 13.7 22.7
Truck 33.6 7.6 32.8 6.9 44.9 16.7 20.8
For-hire truck 33.6 7.6 32.8 6.9 44.9 16.6 20.8
Private truck
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 29.9
Parcel, USPS or courier
Truck and rail S S S S S S 29.9
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 33.5 31.9 43.1 44.6
Single modes 31.0 2.1 29.9 2.0 42.3 1.1 43.2
Truck 44.4 8.9 41.9 8.7 49.4 9.6 44.9
For-hire truck 40.7 5.4 40.0 5.7 S S 48.5
Private truck 46.5 10.1 44.6 9.5 S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline 29.8 10.0 31.5 9.4 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 31.4

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 37.5 33.5 29.8 S
Single modes 38.0 1.6 34.2 1.9 29.9 1.5 S
Truck 31.8 17.3 29.4 16.9 26.7 15.8 S
For-hire truck 32.2 4.5 30.6 4.2 S S 36.7
Private truck 45.0 17.4 43.2 17.2 42.2 16.4 S
Rail 0.2 33.3
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S 48.6 17.1 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 26.4 19.7 21.1 S
Single modes 26.0 1.3 20.0 1.0 21.1 0.1 S
Truck 32.7 8.6 31.1 8.4 24.1 9.7 S
For-hire truck 35.1 5.1 27.1 6.0 29.8 5.4 31.6
Private truck S S S S 32.2 7.7 S
Rail 32.3 9.2 26.2 8.3 24.2 9.7 6.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S S
Parcel, USPS or courier S S S S S S 37.4
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 30.1

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 27.4 S S S S S
Single modes 27.1 1.2 S S S S S
Truck 27.2 4.2 S S S S S
For-hire truck 33.4 11.5 S S S S 22.6
Private truck S S S S S S 35.9
Rail S S S S S S 29.9
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 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 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 30.5 27.4 45.1 44.2
Single modes 42.5 16.1 38.6 14.7 S S S
Truck 42.5 16.1 38.6 14.7 S S S
For-hire truck 46.3 16.4 43.6 15.5 40.2 14.8 S
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 46.8 12.9 48.6 11.3 30.2 12.1 26.7
Parcel, USPS or courier 46.8 12.9 48.6 11.3 30.2 12.1 26.7
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.3

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 22.6 21.8 26.6 26.7
Single modes 23.1 3.0 21.3 3.5 26.1 2.6 26.2
Truck 39.1 7.9 37.1 7.8 43.0 7.1 30.2
For-hire truck 44.5 8.5 39.5 8.0 44.0 7.1 16.1
Private truck S S S S S S 30.1
Rail 28.6 7.6 27.1 7.7 28.2 9.0 19.3
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 S 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 S

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 38.4 32.3 29.5 S
Single modes 38.5 1.9 32.3 2.8 29.5 1.1 S
Truck 39.3 4.7 32.9 3.3 30.7 3.4 S
For-hire truck 35.9 8.7 31.0 7.0 31.0 5.4 17.5
Private truck S S 48.1 8.3 44.1 5.1 39.6
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 28.4
Pipeline S S S
Multiple modes 42.4 1.0 31.9 0.5 39.9 1.1 32.9
Parcel, USPS or courier 42.4 1.0 31.9 0.5 39.9 1.1 32.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S 47.7 2.3 S S S

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 17.0 15.7 16.0 30.0
Single modes 16.8 1.1 15.6 0.5 16.1 0.9 23.1
Truck 17.7 2.2 18.9 6.4 19.7 6.6 27.2
For-hire truck 18.2 2.7 17.3 5.6 17.8 6.2 9.8
Private truck 27.3 2.1 39.1 2.5 S S S
Rail 35.3 2.0 40.3 6.4 39.9 6.3 20.8
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 48.5 0.2 46.7 41.1 19.3
Pipeline S S S
Multiple modes 31.0 1.1 S S S S 15.4
Parcel, USPS or courier 29.0 0.9 39.4 0.2 32.2 0.2 13.1
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 45.7 0.4 S S 21.6

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 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 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 14.9 21.5 20.1 14.7
Single modes 15.1 1.6 21.9 1.5 20.4 1.9 14.1
Truck 15.8 2.6 22.7 3.0 25.5 8.7 13.4
For-hire truck 20.3 5.2 21.5 3.8 28.0 4.6 12.3
Private truck 18.6 6.4 26.3 5.8 25.9 5.6 11.4
Rail 27.8 2.5 28.0 3.2 34.1 9.2 22.3
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S S S S S 33.9
Parcel, USPS or courier S S S S S S 33.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 33.6

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 42.9 44.8 49.7 42.4
Single modes 43.0 0.2 44.8 49.7 43.6
Truck 34.6 12.5 37.3 12.9 43.9 15.6 48.6
For-hire truck S S S S S S 25.2
Private truck 47.6 11.7 S S S S S
Rail S S S S 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 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 29.8

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 16.5 22.9 18.1 S
Single modes 16.8 1.5 23.4 2.1 17.8 4.9 S
Truck 17.0 10.2 24.0 10.2 18.3 10.1 46.1
For-hire truck 21.2 12.3 25.3 11.9 22.8 12.0 20.2
Private truck S S S S S S S
Rail S S S S S S 27.9
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 33.1
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 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 32.4

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 46.1 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 25.4
Private truck S S S S S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 47.7 0.2 S S S S 23.1
Pipeline S S S S S S S
Multiple modes 46.3 14.4 S S S S 46.9
Parcel, USPS or courier 46.3 14.4 S S S S 46.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 22.2 27.8 33.8 15.7
Single modes 22.1 6.0 29.3 5.0 39.6 9.9 31.0
Truck 22.5 6.4 29.5 5.4 40.1 10.2 38.6
For-hire truck 43.0 7.9 S S 44.8 16.3 22.7
Private truck 27.3 11.3 29.2 12.0 38.5 13.8 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 26.6
Pipeline S S S
Multiple modes 31.8 5.7 32.7 4.9 39.3 9.9 12.4
Parcel, USPS or courier 31.8 5.7 32.7 4.9 39.3 9.9 12.4
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 40.0 0.5 47.8 0.5 S S 41.7

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 30.6 33.9 38.4 17.9
Single modes 31.6 10.4 39.4 7.4 45.9 11.2 36.3
Truck 31.9 10.3 40.0 8.4 48.4 11.9 36.5
For-hire truck 39.5 12.1 46.3 7.1 S S 17.6
Private truck 44.6 11.7 S S S S 34.6
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 S S 42.2 6.1 43.6 10.2 21.5
Parcel, USPS or courier S S S S S S 26.0
Truck and rail S S 43.8 6.1 46.3 7.6 26.6
Truck and water S S S S S S 31.6
Rail and water
Other Multiple modes
Other and unknown modes 45.6 1.9 S S S S 46.7

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 20.0 23.9 30.4 26.9
Single modes 19.3 3.4 20.8 3.1 22.9 7.0 45.9
Truck 19.4 4.2 19.8 4.7 23.0 10.6 37.3
For-hire truck 26.3 8.6 36.1 8.6 26.7 10.8 17.6
Private truck 22.8 6.8 25.4 9.6 39.3 10.1 16.0
Rail S S S S S S 28.1
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 28.8
Pipeline S S S
Multiple modes 45.5 2.8 S S 43.9 0.7 21.0
Parcel, USPS or courier 45.5 2.8 S S 43.9 0.7 21.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 35.5

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 15.9 S S 30.2 28.1
Single modes 14.3 3.0 S S 32.1 3.6 33.8
Truck 14.1 3.0 S S 33.2 3.9 36.7
For-hire truck 17.3 4.6 S S 35.4 6.4 14.0
Private truck 20.0 5.3 29.2 10.8 28.6 2.8 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 20.8
Pipeline S S S
Multiple modes 48.5 2.5 43.3 0.9 S S 16.4
Parcel, USPS or courier S S 46.7 0.9 S S 16.4
Truck and rail
Truck and water S S S S S S 31.6
Rail and water
Other Multiple modes
Other and unknown modes 38.7 0.8 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 15.2 14.6 20.6 33.6
Single modes 16.5 3.1 15.2 1.8 21.0 3.5 S
Truck 16.9 5.0 15.3 2.0 21.2 3.8 S
For-hire truck 18.3 6.8 19.8 8.0 22.4 7.0 8.9
Private truck 41.8 6.6 46.3 8.3 S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 30.8 2.1 30.1 0.3 31.6 0.5 11.1
Pipeline S S S
Multiple modes 21.8 3.3 41.7 2.0 28.5 3.5 21.3
Parcel, USPS or courier 22.5 2.9 44.4 1.8 35.8 1.5 20.9
Truck and rail
Truck and water S S S S S S 28.8
Rail and water
Other Multiple modes
Other and unknown modes 28.8 0.4 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 S S 42.3 40.9 16.0
Single modes S S 42.9 0.9 41.2 0.7 27.1
Truck S S 42.9 0.9 41.3 0.8 36.9
For-hire truck S S S S 43.3 10.0 14.7
Private truck 35.6 9.0 43.0 12.2 43.9 9.5 29.9
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S 45.9 0.2 12.0
Pipeline S S S
Multiple modes 32.1 9.5 25.4 0.8 30.7 0.8 10.6
Parcel, USPS or courier 32.1 9.5 25.4 0.8 30.7 0.8 10.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S 36.9 0.2 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 36.7 S S S S 28.0
Single modes 37.1 2.2 S S S S 33.0
Truck 26.7 17.8 S S S S 32.6
For-hire truck 21.4 10.2 25.3 13.2 24.8 18.8 S
Private truck 46.8 11.2 40.0 12.8 43.3 8.1 31.3
Rail S S S S S S 27.9
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 49.2 S S 26.5
Pipeline S S S
Multiple modes S S S S S S 30.9
Parcel, USPS or courier S S S S S S 30.9
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 23.3 43.3 50.0 8.8
Single modes 23.3 6.1 44.1 4.2 S S 10.9
Truck 30.1 8.0 32.9 14.9 28.8 13.1 14.4
For-hire truck 36.5 9.4 22.1 11.2 23.0 12.0 8.6
Private truck S S S S S S S
Rail 48.7 6.4 S S S S 23.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 6.8
Pipeline S S S
Multiple modes S S S S S S 14.1
Parcel, USPS or courier S S S S S S 14.2
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

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 S S 42.2 46.9 38.2
Single modes S S 46.5 13.2 S S S
Truck S S 46.5 13.2 S S S
For-hire truck S S S S S S 44.3
Private truck S S S S S S 22.9
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 30.5
Pipeline S S S
Multiple modes S S 46.1 9.0 46.2 13.9 22.1
Parcel, USPS or courier S S 46.1 9.0 46.2 13.9 22.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 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 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 S S S S S S 30.8
Parcel, USPS or courier S S S S S S 30.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 49.0 7.9 45.5 9.8 45.0 11.5 28.8

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 15.5 23.0 21.8 18.3
Single modes 17.8 8.3 23.6 6.8 22.7 8.7 32.4
Truck 17.9 8.3 23.6 6.8 22.7 8.7 30.3
For-hire truck 17.8 9.4 19.6 11.3 28.0 11.4 13.9
Private truck 44.8 5.7 S S S S 43.4
Rail
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 24.2 8.3 30.0 6.9 31.0 8.8 12.8
Parcel, USPS or courier 24.2 8.3 29.5 6.9 31.0 8.8 12.8
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 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 28.2
Single modes S S S S S S 28.2
Truck S S S S S S 29.0
For-hire truck S S S S S S 28.6
Private truck S S S S S S 31.1
Rail S S S S S S S
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 17.5 24.9 23.6 22.9
Single modes 18.5 3.1 25.3 1.3 24.3 3.0 S
Truck 18.5 3.1 25.4 1.4 24.4 3.0 S
For-hire truck 18.0 4.1 23.6 6.2 20.9 7.0 12.0
Private truck 25.7 6.0 30.8 7.2 35.4 8.5 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) S S S S S S 28.0
Pipeline S S S S S S S
Multiple modes 46.8 3.1 45.3 1.4 S S 14.5
Parcel, USPS or courier 46.8 3.1 45.3 1.4 S S 14.5
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 48.5 0.2 48.6 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 26.8 44.3 S S 23.9
Single modes 36.2 14.5 44.5 10.0 S S S
Truck 36.3 13.0 S S S S 46.7
For-hire truck 44.9 9.1 S S S S S
Private truck 45.3 10.3 S S S S 34.8
Rail S S S S S S 30.1
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 S S S S 25.1
Parcel, USPS or courier S S S S S S 25.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

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.