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Table B–4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size 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 modes

Shipment Weight 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 shipment sizes 6.0 – 9.6 – 15.8 – 14.8
Less than 50 lbs 9.6 1.0 13.0 – 15.2 – 15.2
50 to 99 lbs 16.0 0.4 15.2 – 15.2 – 10.6
100 to 499 lbs 7.9 0.8 14.2 0.1 12.5 0.1 13.0
500 to 749 lbs 12.8 0.3 23.3 – 19.4 – 29.0
750 to 999 lbs 17.1 0.3 22.2 – 18.0 – 28.4
1,000 to 9,999 lbs 16.7 2.7 10.7 1.0 14.4 1.1 8.5
10,000 to 49,999 lbs 8.9 1.7 8.8 2.2 15.0 4.0 12.5
50,000 to 99,999 lbs 13.9 0.7 17.0 3.4 18.5 1.3 26.2
100,000 lbs or more 20.6 1.6 16.9 3.9 23.1 5.9 16.1

Single modes

Shipment Weight 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 shipment sizes 7.4 – 10.3 – 15.9 – 10.9
Less than 50 lbs 15.0 0.5 22.2 – 26.4 – 14.9
50 to 99 lbs 22.4 0.4 18.0 – 27.0 – 14.2
100 to 499 lbs 9.5 0.8 15.5 0.1 15.7 – 17.9
500 to 749 lbs 12.4 0.3 23.7 – 19.0 – 29.6
750 to 999 lbs 16.3 0.3 22.5 – 18.5 – 29.5
1,000 to 9,999 lbs 18.1 2.9 12.0 1.1 15.3 1.1 8.8
10,000 to 49,999 lbs 9.0 1.9 9.8 2.6 15.3 4.1 11.9
50,000 to 99,999 lbs 13.8 0.8 16.9 3.6 18.4 1.3 26.2
100,000 lbs or more 20.5 1.7 19.5 4.9 23.2 5.9 14.8

Truck

Shipment Weight 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 shipment sizes 7.6 – 11.1 – 13.5 – 13.5
Less than 50 lbs 13.0 0.4 22.3 – 31.3 – 24.8
50 to 99 lbs 22.5 0.4 18.1 – 28.0 – 14.7
100 to 499 lbs 10.5 0.9 15.5 0.2 15.9 0.1 18.2
500 to 749 lbs 12.4 0.3 23.7 – 19.2 – 29.5
750 to 999 lbs 16.3 0.3 22.5 0.1 18.6 – 29.6
1,000 to 9,999 lbs 18.3 2.9 12.0 1.1 15.5 1.0 8.9
10,000 to 49,999 lbs 9.1 2.7 9.9 2.6 15.2 2.0 12.1
50,000 to 99,999 lbs 14.1 0.8 17.3 3.8 17.9 1.4 25.0
100,000 lbs or more 29.5 0.4 26.6 1.8 21.6 1.5 36.2

For-hire truck

Shipment Weight 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 shipment sizes 5.0 – 16.4 – 17.0 – 7.2
Less than 50 lbs 20.1 0.5 19.8 – 32.8 – 11.6
50 to 99 lbs 41.6 0.4 18.1 – 25.7 – 12.1
100 to 499 lbs 20.9 1.1 22.9 0.1 18.7 0.1 6.6
500 to 749 lbs 16.3 0.3 15.0 – 16.8 – 9.7
750 to 999 lbs 20.5 0.2 16.2 – 17.3 – 9.5
1,000 to 9,999 lbs 15.9 3.0 15.5 0.7 20.1 0.9 9.0
10,000 to 49,999 lbs 7.4 2.4 14.0 3.0 17.8 1.7 12.3
50,000 to 99,999 lbs 14.8 1.0 22.0 3.1 23.6 1.3 26.2
100,000 lbs or more 18.1 0.2 36.9 2.1 23.8 1.4 33.4

Private truck

Shipment Weight 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 shipment sizes 11.8 – 11.7 – 12.7 – 14.9
Less than 50 lbs 19.7 1.1 24.8 – 41.2 – 26.7
50 to 99 lbs 19.2 0.7 19.5 – 39.8 – 17.3
100 to 499 lbs 18.5 2.4 19.3 0.4 26.8 0.4 17.2
500 to 749 lbs 23.4 0.7 27.2 0.2 32.0 0.3 19.1
750 to 999 lbs 19.7 0.5 24.6 0.2 26.4 0.2 23.4
1,000 to 9,999 lbs 29.2 4.1 17.4 2.1 19.7 3.1 9.6
10,000 to 49,999 lbs 14.0 4.6 11.8 3.2 15.2 3.1 17.3
50,000 to 99,999 lbs 26.1 1.4 22.8 5.3 20.4 2.8 29.3
100,000 lbs or more S S 40.1 3.3 29.1 2.8 S

Rail

Shipment Weight 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 shipment sizes 22.5 – 22.6 – 25.3 – 14.3
Less than 50 lbs S S S S S S S
50 to 99 lbs S S S S S S 31.6
100 to 499 lbs S S S S S S 30.8
500 to 749 lbs S S S S S S 31.6
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S 46.5 – 47.9 – S
10,000 to 49,999 lbs 12.0 1.9 S S S S 13.8
50,000 to 99,999 lbs 39.3 1.3 40.3 1.1 31.8 1.6 13.0
100,000 lbs or more 24.4 2.7 23.3 1.8 26.0 2.8 14.5

Water

Shipment Weight 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 shipment sizes S S S S S S S
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 29.8
10,000 to 49,999 lbs S S S S S S S
50,000 to 99,999 lbs S S S S S S 29.8
100,000 lbs or more S S S S S S 45.9

Shallow draft

Shipment Weight 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 shipment sizes S S S S S S S
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 29.8
10,000 to 49,999 lbs S S S S S S 29.8
50,000 to 99,999 lbs S S S S S S 29.8
100,000 lbs or more S S S S S S 46.1

Great Lakes

Shipment Weight 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 shipment sizes – – – – – – –
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

Deep draft

Shipment Weight 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 shipment sizes S S 23.8 – 12.9 – 31.6
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs – – – – – – –
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs – – – – – – –
10,000 to 49,999 lbs S S S S S S 31.6
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – 0.2 – 5.5 – 4.9 33.3

Air (including truck and air)

Shipment Weight 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 shipment sizes 38.0 – S S S S 6.9
Less than 50 lbs 35.5 10.6 33.5 11.6 42.1 12.2 8.3
50 to 99 lbs 29.6 4.5 27.3 4.5 27.9 4.1 12.5
100 to 499 lbs S S 45.6 11.2 42.0 10.3 17.3
500 to 749 lbs S S 40.7 5.9 38.0 9.2 31.0
750 to 999 lbs S S S S S S 30.0
1,000 to 9,999 lbs S S S S S S 25.4
10,000 to 49,999 lbs S S S S S S 31.6
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more S S S S S S 31.6

Pipeline (2)

Shipment Weight 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 shipment sizes S S S S S S S
Less than 50 lbs – – – – S S S
50 to 99 lbs – – – – S S S
100 to 499 lbs S S S S S S S
500 to 749 lbs – – – – S S S
750 to 999 lbs – – – – S S S
1,000 to 9,999 lbs – – – – S S S
10,000 to 49,999 lbs S S S S S S S
50,000 to 99,999 lbs S S 49.9 7.6 S S S
100,000 lbs or more S S S S S S S

Multiple modes

Shipment Weight 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 shipment sizes 16.3 – 48.8 – 27.8 – 9.9
Less than 50 lbs 21.1 5.9 24.6 6.8 21.4 6.3 10.2
50 to 99 lbs 18.3 1.5 16.2 2.2 14.4 1.2 13.3
100 to 499 lbs 23.5 3.5 16.8 4.8 25.2 5.5 13.2
500 to 749 lbs S S 31.7 1.9 42.1 0.5 20.3
750 to 999 lbs S S 33.3 0.6 37.5 0.4 41.9
1,000 to 9,999 lbs S S S S S S 29.5
10,000 to 49,999 lbs 23.8 0.8 20.7 6.9 22.9 8.6 12.9
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more S S S S S S 31.6

Parcel, USPS or courier

Shipment Weight 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 shipment sizes 16.8 – 16.8 – 16.6 – 9.9
Less than 50 lbs 21.1 5.7 24.6 4.0 21.4 5.1 10.2
50 to 99 lbs 18.3 1.6 16.2 1.7 14.4 1.8 13.3
100 to 499 lbs 23.5 3.7 17.0 2.9 25.8 4.8 13.8
500 to 749 lbs S S 31.8 2.3 42.5 1.8 20.4
750 to 999 lbs S S 33.3 0.6 37.5 0.8 41.9
1,000 to 9,999 lbs S S S S S S 29.8
10,000 to 49,999 lbs – – – – – – –
50,000 to 99,999 lbs – – – – – – –
100,000 lbs or more – – – – – – –

Truck and rail

Shipment Weight 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 shipment sizes 24.3 – 24.2 – 24.3 – 26.1
Less than 50 lbs – – – – – – –
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S S
500 to 749 lbs – – – – – – –
750 to 999 lbs – – – – – – –
1,000 to 9,999 lbs S S S S S S 31.6
10,000 to 49,999 lbs 24.6 2.0 23.8 3.8 25.4 3.3 13.4
50,000 to 99,999 lbs S S S S S S 31.6
100,000 lbs or more – – – – – – –

Truck and water

Shipment Weight 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 shipment sizes S S S S S S 28.6
Less than 50 lbs S S S S S S 31.6
50 to 99 lbs – – – – – – –
100 to 499 lbs S S S S S S 31.6
500 to 749 lbs S S