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 8.8 17.3 8.4 14.4
Single modes 10.8 2.2 17.9 0.9 8.9 1.1 27.9
Truck 11.0 2.5 18.1 0.9 8.1 2.3 25.2
For-hire truck 16.0 3.4 7.6 2.5 7.4 2.8 10.6
Private truck 16.1 3.7 22.8 3.2 14.9 2.9 15.2
Rail 36.8 31.9 0.3 34.2 1.9 25.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 23.2 0.5 36.2 35.8 9.7
Pipeline S S S
Multiple modes 8.3 2.2 29.7 0.9 13.7 1.1 7.8
Parcel, USPS or courier 8.2 2.2 10.2 0.2 14.5 1.0 7.8
Truck and rail S S S S 48.2 0.3 S
Truck and water S S S S S S S
Rail and water
Other Multiple modes
Other and unknown modes 18.3 0.3 22.9 0.3 12.9 0.2 48.9

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
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 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 29.8
Single modes S S S S S S 26.2
Truck S S S S S S 26.0
For-hire truck
Private truck S S S S S S 26.0
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 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 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 26.0
Single modes S S S S S S 30.9
Truck S S S S S S 30.9
For-hire truck S S S S S S 31.6
Private truck S S S S S S 31.2
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 29.8
Parcel, USPS or courier S S S S S S 30.0
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 41.0

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 33.7 36.7 36.0 S
Single modes 33.7 36.7 36.0 S
Truck 33.7 36.7 37.1 3.5 S
For-hire truck S S S S 48.4 10.5 S
Private truck 33.7 10.4 36.8 10.4 37.2 10.3 31.5
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 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 45.3 42.7 S S 39.4
Single modes 45.3 0.8 42.7 S S 39.0
Truck 45.3 0.8 42.7 S S 39.0
For-hire truck S S S S S S 39.9
Private truck S S S S S S 42.1
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 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

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 22.7 29.8 32.0 S
Single modes 22.9 0.6 29.9 32.3 0.7 S
Truck 22.9 0.6 29.9 32.3 0.7 S
For-hire truck 24.9 9.2 37.7 11.8 38.3 7.9 16.3
Private truck 34.2 9.2 37.5 11.8 42.0 8.1 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air)
Pipeline S S S
Multiple modes S S 49.2 S S 27.2
Parcel, USPS or courier S S 49.2 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 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 25.0 34.6 39.1 19.7
Single modes 25.0 34.6 39.1 19.7
Truck 25.0 34.6 39.1 19.7
For-hire truck S S S S S S 31.6
Private truck 25.0 34.6 39.1 19.7
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 30.0
Single modes S S S S S S 30.0
Truck S S S S S S 30.0
For-hire truck
Private truck S S S S S S 30.0
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 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 41.0 41.1 41.9 25.9
Single modes 41.0 0.9 41.1 0.7 41.9 0.6 25.9
Truck 41.0 0.9 41.1 0.7 41.9 0.6 25.9
For-hire truck 43.0 3.0 42.9 2.0 41.5 2.5 26.0
Private truck 43.6 2.8 42.0 1.7 44.0 2.2 26.2
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 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 22.8 23.1 27.2 20.2
Single modes 23.2 1.3 23.3 0.3 27.2 0.2 15.8
Truck 23.2 1.3 23.3 0.3 27.2 0.2 15.8
For-hire truck 32.4 6.2 37.3 6.0 39.5 6.6 29.4
Private truck 23.1 6.5 21.8 6.1 26.1 6.6 16.9
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 S S S S S S 28.8

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 10.2 9.2 15.0 6.7
Single modes 10.3 0.7 9.4 1.0 16.0 3.8 6.4
Truck 10.3 0.7 9.4 1.0 16.0 3.8 6.4
For-hire truck 22.3 5.4 27.5 5.4 30.6 7.4 13.0
Private truck 15.5 5.4 13.5 5.4 21.5 7.5 8.4
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 31.2

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 43.1 42.3 35.1
Single modes S S 41.9 1.1 42.3 30.7
Truck S S 43.6 4.7 41.9 9.0 31.0
For-hire truck 34.2 10.1 40.4 9.2 41.9 7.2 25.1
Private truck S S S S S S S
Rail 42.4 4.6 42.5 4.3 43.9 9.0 25.9
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 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
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 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 16.8 17.8 18.7 9.6
Single modes 16.8 17.8 18.7 9.6
Truck 16.8 17.8 18.7 9.6
For-hire truck 26.0 5.3 26.3 5.5 25.4 5.3 11.8
Private truck 12.6 5.3 14.6 5.5 15.7 5.3 11.9
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 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 S S S S 43.2 28.3
Single modes S S S S 44.1 4.1 27.0
Truck S S S S 44.1 4.1 27.0
For-hire truck 40.3 9.9 37.8 9.4 47.7 10.0 18.3
Private truck S S S S S S 28.7
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 S S 41.3 S S 35.3
Single modes S S 41.3 S S 36.2
Truck S S 41.3 S S 36.2
For-hire truck S S 42.5 9.0 S S 42.9
Private truck S S 47.3 9.0 42.3 15.6 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 35.8
Parcel, USPS or courier S S S S S S 35.8
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 33.3 31.1 30.4 33.2
Single modes 35.9 10.1 31.2 10.5 30.8 10.4 26.3
Truck 36.0 10.1 31.2 10.5 30.8 10.4 31.3
For-hire truck 37.8 14.4 39.5 14.1 44.9 14.1 25.6
Private truck 49.0 10.4 S S S S 32.6
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 31.1
Pipeline S S S
Multiple modes S S 45.7 5.8 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 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 S S S S S S 14.8
Single modes S S S S S S 30.5
Truck S S S S S S 41.1
For-hire truck S S S S S S 39.6
Private truck S S S S S S 30.7
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 23.6
Pipeline S S S
Multiple modes 37.2 15.0 S S S S 14.1
Parcel, USPS or courier 37.2 15.0 S S S S 14.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 47.9

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 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
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 31.5 40.9 31.8 11.2
Single modes 33.1 9.1 41.5 10.5 33.2 11.9 16.1
Truck 33.1 9.1 41.5 10.5 33.3 11.9 20.8
For-hire truck 39.8 17.3 S S 37.1 17.3 25.8
Private truck 33.7 13.8 39.2 16.7 S S 34.5
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 28.5
Pipeline S S S
Multiple modes 47.6 9.2 45.8 10.5 48.9 11.9 10.8
Parcel, USPS or courier 47.6 9.2 45.8 10.5 48.9 11.9 10.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.7

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 19.1 35.6 24.2 S
Single modes 18.1 6.0 36.8 2.6 26.8 4.8 S
Truck 19.2 6.1 40.1 5.5 20.4 6.7 S
For-hire truck 20.4 9.6 23.4 12.3 24.0 7.5 16.7
Private truck 45.2 10.5 S S 32.3 5.3 S
Rail S S S S S S 28.4
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 44.1 0.3 43.9 0.6 27.9
Pipeline S S S
Multiple modes S S 35.4 1.1 S S 27.5
Parcel, USPS or courier S S 30.7 1.0 36.0 2.3 27.5
Truck and rail S S S S S S 28.9
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 36.4 45.4 42.4 22.1
Single modes 36.4 45.4 42.4 22.1
Truck 36.4 45.4 42.4 22.1
For-hire truck S S S S S S 31.6
Private truck 36.4 45.4 42.4 22.1
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 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 17.1 31.1 41.9 33.1
Single modes 17.7 1.7 32.0 2.6 48.3 8.2 12.7
Truck 17.4 1.7 31.6 2.6 32.3 12.1 10.6
For-hire truck 37.0 1.4 S S S S 20.8
Private truck 17.2 2.4 29.7 3.7 27.3 11.9 9.9
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 43.3 0.2 41.1 S S 23.6
Parcel, USPS or courier 43.3 0.2 41.1 S S 23.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 30.8

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 14.7 13.2 19.6 22.4
Single modes 14.5 2.4 13.1 0.8 19.7 1.4 24.2
Truck 14.5 2.4 12.9 0.8 20.2 2.1 24.2
For-hire truck 23.3 9.9 16.5 8.0 21.6 4.3 18.4
Private truck 30.6 10.8 37.8 8.1 36.3 2.6 34.0
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 30.5
Parcel, USPS or courier S S S S S S 30.5
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 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 25.8 26.1 35.6 37.4
Single modes 28.6 13.2 26.7 10.6 36.9 11.1 S
Truck 28.6 13.2 26.7 10.6 36.9 11.1 S
For-hire truck 25.2 9.6 24.2 9.1 40.5 10.1 20.9
Private truck 42.0 7.7 47.2 8.7 40.8 3.0 19.0
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 39.7 10.3 37.3 10.6 S S 22.2
Parcel, USPS or courier 39.7 10.3 37.3 10.6 S S 22.3
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 45.9 2.3 S S S

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 14.0 34.0 23.7 13.2
Single modes 19.4 5.6 48.8 11.3 42.9 10.5 S
Truck 19.4 5.6 48.8 12.1 43.0 11.6 41.4
For-hire truck 23.0 4.7 S S 43.0 11.4 28.2
Private truck 27.8 2.8 38.7 7.2 42.2 0.7 50.0
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 47.4 1.5 47.4 3.9 27.2
Pipeline S S S
Multiple modes 23.0 9.5 24.4 9.3 20.6 10.9 12.4
Parcel, USPS or courier 23.0 9.5 24.4 9.3 20.6 10.9 12.4
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 26.8 32.3 43.2 10.8
Single modes 32.4 7.6 37.5 8.3 S S 36.8
Truck 32.6 7.9 37.5 8.3 S S 36.6
For-hire truck 36.1 8.6 43.1 10.1 S S 35.8
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 27.1
Pipeline S S S
Multiple modes 23.8 5.9 23.9 6.8 33.0 7.7 11.5
Parcel, USPS or courier 23.8 5.9 23.9 6.8 33.0 7.7 11.5
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 35.2 S S 38.8 34.9
Single modes 41.4 10.0 S S 47.4 15.6 S
Truck 41.7 10.4 S S 47.5 15.6 S
For-hire truck S S S S S S 21.6
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 25.1
Pipeline S S S
Multiple modes 34.4 10.0 S S 45.1 12.8 16.1
Parcel, USPS or courier 40.3 9.5 21.3 8.6 25.8 11.2 15.9
Truck and rail S S S S S S 31.6
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 47.6 0.9 S S S S S

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 17.1 S S 29.5 18.3
Single modes 17.5 1.4 S S 29.9 2.2 17.3
Truck 17.4 1.7 S S 19.6 7.6 17.5
For-hire truck 18.9 4.7 14.6 9.5 18.8 8.5 17.8
Private truck 23.2 5.3 S S 37.8 7.4 20.2
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 27.0
Pipeline S S S
Multiple modes 36.9 1.2 40.7 0.3 32.1 0.5 25.0
Parcel, USPS or courier 36.9 1.2 40.7 0.3 32.1 0.5 25.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes 45.3 0.2 47.4 0.3 46.5 1.7 34.4

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 15.0 37.2 26.2 S
Single modes 20.5 7.2 38.8 3.9 27.7 5.7 S
Truck 20.6 7.2 38.8 3.9 27.8 5.7 S
For-hire truck 23.2 9.1 30.9 11.3 25.8 7.8 6.0
Private truck 37.1 7.0 S S 45.8 6.2 S
Rail S S S S S S 31.6
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 39.8 0.1 40.0 36.7 22.5
Pipeline S S S
Multiple modes 32.4 7.6 41.8 2.8 S S 20.1
Parcel, USPS or courier 32.4 7.6 41.8 2.8 S S 20.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S 46.7 2.7 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 24.4 22.6 27.6 17.3
Single modes 27.3 4.3 22.4 3.0 28.4 3.4 28.3
Truck 28.0 4.7 22.6 2.9 28.8 3.1 28.5
For-hire truck 33.1 5.2 25.6 7.9 31.4 8.2 8.6
Private truck 33.6 4.5 39.6 7.7 S S S
Rail S S S S S S 30.1
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 44.2 2.0 38.7 0.4 S S 16.0
Pipeline S S S
Multiple modes 17.8 3.2 34.3 1.9 34.5 1.9 17.0
Parcel, USPS or courier 17.8 3.2 34.3 1.9 34.5 1.9 17.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 29.0

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 16.3 24.6 25.8 10.1
Single modes 23.9 6.8 28.8 4.8 31.1 6.2 15.8
Truck 27.9 6.9 29.8 5.1 32.3 6.5 S
For-hire truck 31.0 6.9 22.0 6.4 32.7 6.3 23.4
Private truck S S S S S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) 45.0 3.0 S S S S 16.4
Pipeline S S S
Multiple modes 23.0 7.1 34.4 5.3 32.7 6.8 7.8
Parcel, USPS or courier 23.0 7.1 34.4 5.3 32.7 6.8 7.8
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S 45.6 2.6 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 32.0 27.2 S S S
Single modes 32.2 2.8 27.9 1.8 S S S
Truck 32.3 2.9 27.9 1.9 S S S
For-hire truck 40.5 10.2 36.2 12.3 S S 34.7
Private truck 34.0 11.6 42.3 12.6 41.6 13.4 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 26.0
Parcel, USPS or courier S S S S S S 26.0
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 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 19.9 47.6 S S 11.6
Single modes 29.6 9.9 S S S S 47.7
Truck 36.0 9.4 S S S S S
For-hire truck 43.5 5.2 S S S S S
Private truck 42.7 8.8 42.2 9.0 S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 38.0 6.5 45.9 6.7 21.9
Pipeline S S S
Multiple modes 31.0 9.4 S S S S 12.2
Parcel, USPS or courier 31.0 9.4 S S S S 12.2
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 31.5

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 22.3 23.5 27.7 17.3
Single modes 23.8 9.0 28.9 10.3 32.5 12.4 S
Truck 22.5 9.4 29.0 10.5 32.7 12.5 S
For-hire truck 28.8 9.8 42.1 12.2 39.4 11.9 28.8
Private truck 35.0 2.9 S S S S S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 48.3 0.3 S S 19.7
Pipeline S S S
Multiple modes 29.1 9.4 32.2 10.0 S S 11.1
Parcel, USPS or courier 29.1 9.4 32.2 10.0 S S 11.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 40.6

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 33.7 40.6 S S 41.7
Single modes 34.3 2.2 41.5 1.7 48.2 4.0 48.9
Truck 34.3 2.2 41.5 1.7 48.2 4.0 49.0
For-hire truck 41.8 9.6 S S S S 23.9
Private truck 42.6 9.6 S S S S 45.1
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 26.1
Parcel, USPS or courier S S S S S S 26.1
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S 28.2

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 24.8 S S 34.2 8.8
Single modes 29.6 5.3 S S 33.9 9.6 31.9
Truck 29.9 5.3 S S 34.0 9.6 31.1
For-hire truck 40.2 9.2 30.0 8.4 29.6 8.3 21.6
Private truck 23.3 9.0 S S 50.0 7.0 S
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S 38.6 46.9 0.2 18.1
Pipeline S S S
Multiple modes 27.3 5.3 44.5 7.5 S S 7.0
Parcel, USPS or courier 27.3 5.3 44.5 7.5 S S 7.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S S S S

SCTG 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 30.4
Truck S S S S S S 30.4
For-hire truck S S S S S S 42.7
Private truck S S 47.9 12.0 S S 42.5
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 31.6

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 40.3 S S 43.5 S
Single modes 41.4 2.2 S S 44.3 3.3 42.0
Truck 41.4 2.3 S S 44.4 3.5 41.2
For-hire truck 30.9 6.9 35.6 5.9 28.6 10.1 S
Private truck 45.8 7.6 S S S S 12.6
Rail
Water
Shallow draft
Great Lakes
Deep draft
Air (including truck and air) S S S S S S 28.1
Pipeline S S S
Multiple modes 29.4 2.3 43.7 0.7 44.5 3.3 38.0
Parcel, USPS or courier 29.4 2.3 43.7 0.7 44.5 3.3 38.0
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes S S S S 49.4 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 39.1 45.8 S S 38.5
Single modes 27.4 6.8 45.9 1.1 S S S
Truck 28.3 10.8 S S 40.1 19.5 S
For-hire truck 33.1 12.5 S S 41.7 17.4 S
Private truck S S S S 48.7 10.4 38.5
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 30.3
Pipeline S S S
Multiple modes S S 43.0 1.1 S S 27.6
Parcel, USPS or courier S S 43.0 1.1 S S 27.6
Truck and rail
Truck and water
Rail and water
Other Multiple modes
Other and unknown modes

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.