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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 19.2 – 15.0 – 15.8 – 12.5
Single modes 22.4 2.9 15.0 0.7 16.4 1.7 10.7
Truck 21.0 2.5 17.3 4.2 11.2 7.3 12.3
For-hire truck 27.5 3.2 22.9 5.0 13.6 3.9 12.2
Private truck 15.3 3.8 24.2 6.2 19.0 4.4 16.6
Rail 44.8 0.6 41.2 4.1 45.8 7.9 36.6
Water – – – – – – –
Shallow draft – – – – – – –
Great Lakes – – – – – – –
Deep draft – – – – – – –
Air (including truck and air) S S 37.9 – S S 4.7
Pipeline – – – – S S S
Multiple modes 9.8 2.0 S S 30.9 1.7 4.2
Parcel, USPS or courier 9.8 2.0 30.7 0.3 34.7 1.2 4.2
Truck and rail 38.3 – S S S S S
Truck and water S S S S S S 33.2
Rail and water – – – – – – –
Other Multiple modes – – – – – – –
Other and unknown modes 32.9 1.1 47.9 0.6 47.9 0.6 33.0

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 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 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 30.8
Single modes S S S S S S 30.3
Truck S S S S S S 30.3
For-hire truck S S S S S S 31.6
Private truck S S 45.5 5.8 S S 30.7
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 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 27.2 – 35.2 – 40.4 – S
Single modes 27.2 – 35.2 – 40.4 – S
Truck 27.2 – 35.2 – 40.4 – S
For-hire truck 44.8 10.6 S S S S S
Private truck 40.0 10.6 47.7 10.9 S S 47.4
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 – – – – – – –

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 30.9
Single modes S S S S S S 29.9
Truck S S S S S S 29.9
For-hire truck – – – – – – –
Private truck S S S S S S 29.9
Rail – – – – – – –
Water – – – – – – –
Shallow draft – – – – – – –
Great Lakes – – – – – – –
Deep draft – – – – – – –
Air (including truck and air) – – – – – – –
Pipeline – – – – S S S
Multiple modes 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 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 25.9 – 39.8 – 41.8 – 23.0
Single modes 31.3 13.5 48.9 12.9 S S S
Truck 31.2 13.5 49.0 12.9 S S S
For-hire truck S S S S S S 25.8
Private truck 49.5 11.9 S S S S 29.6
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 40.1 14.0 S S S S 24.5
Parcel, USPS or courier 40.1 14.0 S S S S 24.5
Truck and rail – – – – – – –
Truck and water – – – – – – –
Rail and water – – – – – – –
Other Multiple modes – – – – – – –
Other and unknown modes S S S S S S S

SCTG 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 16.4 – 18.4 – 17.6 – 15.6
Single modes 17.0 1.4 18.5 0.4 17.8 1.3 16.8
Truck 17.0 1.4 18.5 0.4 17.8 1.4 16.7
For-hire truck 23.8 8.0 32.1 11.6 19.9 9.6 16.9
Private truck 22.3 8.8 36.4 11.7 46.2 8.9 33.6
Rail – – – – – – –
Water – – – – – – –
Shallow draft – – – – – – –
Great Lakes – – – – – – –
Deep draft – – – – – – –
Air (including truck and air) S S S S 47.7 – 28.3
Pipeline – – – – S S S
Multiple modes 26.1 1.4 30.8 0.4 31.5 1.3 12.8
Parcel, USPS or courier 26.2 1.4 32.6 0.4 32.4 1.3 12.8
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