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

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

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All Commodities

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

SCTG 1, Live animals and live fish

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

SCTG 2, Cereal grains

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

SCTG 3, Other agricultural products

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

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

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

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

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

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

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

SCTG 7, Other prepared foodstuffs and fats and oils

Mode of transportation Value Tons Ton-miles CV of average miles
per shipment
CV Std. error
of percent		 CV Std. error
of percent		 CV Std. error
of percent
All modes 24.3 – 23.6 – 33.2 – S
Single modes 24.6 1.1 23.6 – 33.3 0.7 S
Truck 25.8 8.2 28.5 9.1 30.7 13.0 48.7
For-hire truck 47.6 12.5 S S 42.4 14.2 S
Private truck 33.4 13.3 25.8 12.6 49.4 18.0 S
Rail S S S S S S 30.1
Water – – – – – – –
Shallow draft – – – – – – –
Great Lakes – – – – – – –
Deep draft – – – – – – –
Air (including truck and air) – – – – – – –
Pipeline – – – – S S S
Multiple modes S S S S S S 31.7
Parcel, USPS or courier S S S S S S 31.7
Truck and rail – – – – – – –
Truck and water – – – – – – –
Rail and water – – – – – – –
Other Multiple modes – – – – – – –
Other and unknown modes S S S S S S 30.