Table B-4. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation and Shipment Size for State of Origin: 2002
Monday, July 2, 2012
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]
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 | 9.5 | – | 15.2 | – | 21.5 | – | 20.3 |
| Less than 50 lbs | S | S | 18.7 | – | 37.1 | – | 19.4 |
| 50 to 99 lbs | 11.8 | 0.2 | 9.9 | – | 23.9 | – | 25.4 |
| 100 to 499 lbs | 12.0 | 0.5 | 17.6 | – | 14.5 | – | 12.1 |
| 500 to 749 lbs | 30.4 | 0.4 | 19.9 | – | 32.0 | – | 45.9 |
| 750 to 999 lbs | 16.2 | – | 23.5 | – | 16.9 | – | 45.5 |
| 1,000 to 9,999 lbs | 14.8 | 1.7 | 22.6 | – | 10.1 | – | 43.8 |
| 10,000 to 49,999 lbs | 9.2 | 2.2 | 19.5 | 0.6 | 22.4 | 0.2 | 26.6 |
| 50,000 to 99,999 lbs | 8.8 | 1.2 | 13.6 | 0.6 | 20.1 | 0.2 | 10.3 |
| 100,000 lbs or more | 13.2 | 3.6 | 16.2 | 0.7 | 21.8 | 0.3 | 4.2 |
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 | 6.1 | – | 12.7 | – | 16.0 | – | 14.7 |
| Less than 50 lbs | 15.3 | 0.2 | 20.7 | – | 19.2 | – | 29.0 |
| 50 to 99 lbs | 19.0 | 0.1 | 17.4 | – | 19.8 | – | 16.9 |
| 100 to 499 lbs | 14.4 | 0.4 | 18.4 | – | 18.2 | – | 9.0 |
| 500 to 749 lbs | 22.0 | 0.3 | 21.1 | – | 26.2 | – | S |
| 750 to 999 lbs | 15.2 | – | 23.6 | – | 14.8 | – | 39.7 |
| 1,000 to 9,999 lbs | 14.2 | 1.6 | 20.3 | – | 9.7 | – | 42.4 |
| 10,000 to 49,999 lbs | 9.7 | 2.2 | 19.9 | 0.5 | 23.5 | 0.2 | 27.0 |
| 50,000 to 99,999 lbs | 8.9 | 1.6 | 13.7 | 0.7 | 20.2 | 0.2 | 10.6 |
| 100,000 lbs or more | 12.2 | 3.2 | 13.5 | 0.8 | 16.2 | 0.3 | 2.8 |
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 | 5.5 | – | 11.3 | – | 15.9 | – | 11.9 |
| Less than 50 lbs | 14.6 | 0.4 | 20.9 | – | 23.6 | – | 30.3 |
| 50 to 99 lbs | 19.0 | 0.2 | 17.5 | – | 22.1 | – | 20.7 |
| 100 to 499 lbs | 14.6 | 0.6 | 18.5 | – | 19.1 | – | 10.1 |
| 500 to 749 lbs | 22.1 | 0.4 | 21.1 | – | 26.2 | – | S |
| 750 to 999 lbs | 15.2 | 0.2 | 23.6 | – | 14.8 | – | 39.7 |
| 1,000 to 9,999 lbs | 14.3 | 2.0 | 20.3 | 0.6 | 9.3 | 0.3 | 39.7 |
| 10,000 to 49,999 lbs | 10.8 | 2.9 | 20.1 | 6.1 | 24.6 | 4.4 | 26.6 |
| 50,000 to 99,999 lbs | 9.3 | 3.2 | 14.1 | 2.9 | 21.0 | 5.6 | 10.3 |
| 100,000 lbs or more | 23.0 | 1.6 | 27.1 | 5.4 | 25.6 | 3.0 | 19.6 |
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 | 10.0 | – | 17.4 | – | 18.8 | – | 10.8 |
| Less than 50 lbs | 25.8 | 0.3 | 22.9 | – | 38.3 | – | 22.7 |
| 50 to 99 lbs | 29.1 | 0.1 | 24.7 | – | 31.9 | – | 33.6 |
| 100 to 499 lbs | 23.0 | 0.8 | 21.0 | – | 20.9 | – | 7.4 |
| 500 to 749 lbs | 48.1 | 1.0 | 32.7 | – | 41.4 | – | 18.3 |
| 750 to 999 lbs | 30.7 | 0.3 | 25.4 | – | 25.3 | – | 30.3 |
| 1,000 to 9,999 lbs | 17.9 | 2.2 | 19.1 | 0.2 | 17.3 | 0.3 | 22.3 |
| 10,000 to 49,999 lbs | 11.7 | 3.8 | 19.9 | 5.3 | 29.3 | 4.9 | 16.0 |
| 50,000 to 99,999 lbs | 15.7 | 4.1 | 18.8 | 7.0 | 18.6 | 7.7 | 12.4 |
| 100,000 lbs or more | S | S | 46.5 | 7.2 | 41.9 | 4.5 | 27.8 |
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 | 7.3 | – | 13.7 | – | 23.3 | – | 13.5 |
| Less than 50 lbs | 14.7 | 0.6 | 21.6 | – | 23.8 | – | 10.3 |
| 50 to 99 lbs | 20.8 | 0.2 | 18.7 | – | 26.1 | – | 14.1 |
| 100 to 499 lbs | 17.3 | 0.7 | 18.9 | 0.1 | 24.8 | – | 16.1 |
| 500 to 749 lbs | 28.7 | 0.3 | 24.1 | – | 21.1 | – | 21.5 |
| 750 to 999 lbs | 17.5 | 0.2 | 26.8 | – | 27.2 | – | 19.8 |
| 1,000 to 9,999 lbs | 17.5 | 3.0 | 23.2 | 1.1 | 17.7 | 1.0 | 25.1 |
| 10,000 to 49,999 lbs | 20.2 | 4.8 | 30.4 | 6.8 | 27.0 | 5.5 | 42.7 |
| 50,000 to 99,999 lbs | 11.4 | 4.0 | 18.6 | 5.4 | 30.8 | 5.6 | 11.4 |
| 100,000 lbs or more | 27.4 | 2.4 | 41.3 | 9.0 | 32.6 | 6.6 | 22.5 |
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 | 11.4 | – | 14.1 | – | 16.3 | – | 2.7 |
| 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 | 38.8 |
| 10,000 to 49,999 lbs | 43.9 | 1.3 | 32.8 | – | 35.7 | – | 15.4 |
| 50,000 to 99,999 lbs | 33.9 | 0.3 | 30.5 | – | 34.2 | – | 36.2 |
| 100,000 lbs or more | 11.2 | 1.4 | 14.1 | – | 16.3 | – | 2.4 |
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 | – | – | – | – | – | – | – |
| 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 | – | – | – | – | – | – | – |
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 | – | – | – | – | – | – | – |
| 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 | – | – | – | – | – | – | – |
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 | – | – | – | – | – | – | – |
| 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 | – | – | – | – | – | – | – |
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 | 45.8 | – | S | S | S | S | 13.2 |
| Less than 50 lbs | S | S | 27.9 | 15.9 | 30.4 | 16.5 | 13.0 |
| 50 to 99 lbs | S | S | 46.7 | 7.9 | S | S | 26.4 |
| 100 to 499 lbs | S | S | S | S | S | S | 28.7 |
| 500 to 749 lbs | – | – | – | – | – | – | – |
| 750 to 999 lbs | – | – | – | – | – | – | – |
| 1,000 to 9,999 lbs | S | S | S | S | S | S | 28.1 |
| 10,000 to 49,999 lbs | – | – | – | – | – | – | – |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | – | – | – | – | – | – | – |
Pipeline
| 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 | 38.5 | – | S | S | S |
| Less than 50 lbs | S | S | S | S | S | S | S |
| 50 to 99 lbs | S | S | S | S | S | S | S |
| 100 to 499 lbs | S | S | S | S | S | S | S |
| 500 to 749 lbs | S | S | S | S | 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 | S | S | S | S | S |
| 100,000 lbs or more | S | S | 38.5 | 0.5 | 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 | 45.4 | – | S | S | S | S | 12.2 |
| Less than 50 lbs | S | S | 33.7 | 11.1 | 39.3 | 10.5 | 12.5 |
| 50 to 99 lbs | 26.8 | 3.5 | 29.4 | 4.1 | 32.9 | 4.3 | 11.7 |
| 100 to 499 lbs | 20.5 | 5.0 | 18.6 | 4.2 | 26.6 | 4.7 | 10.9 |
| 500 to 749 lbs | S | S | S | S | S | S | 29.8 |
| 750 to 999 lbs | S | S | S | S | S | S | 31.6 |
| 1,000 to 9,999 lbs | S | S | S | S | S | S | 31.6 |
| 10,000 to 49,999 lbs | 36.1 | 0.7 | 34.5 | 14.8 | 36.5 | 15.5 | 21.5 |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | S | S | S | S | S | S | 28.0 |
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 | S | S | 28.8 | – | 34.2 | – | 12.3 |
| Less than 50 lbs | S | S | 33.7 | 6.8 | 39.3 | 9.1 | 12.5 |
| 50 to 99 lbs | 26.8 | 3.8 | 29.4 | 2.8 | 32.9 | 3.5 | 11.7 |
| 100 to 499 lbs | 20.5 | 5.9 | 18.6 | 5.5 | 26.6 | 6.5 | 10.9 |
| 500 to 749 lbs | S | S | S | S | S | S | 29.8 |
| 750 to 999 lbs | S | S | S | S | S | S | 31.6 |
| 1,000 to 9,999 lbs | S | S | S | S | S | S | 31.6 |
| 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 | 34.5 | – | S | S | S | S | 21.5 |
| 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 | 36.1 | 4.6 | S | S | 36.5 | 10.5 | 21.5 |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | S | S | S | S | S | S | 31.6 |
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 | – | – | – | – | – | – | – |
| 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 | – | – | – | – | – | – | – |
Rail 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 | 28.1 |
| 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 | S | S | S | S | S | S | 28.1 |
Other 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 | S | S | S | S | S | S | 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 | – | – | – | – | – | – | – |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | S | S | S | S | S | S | 31.6 |
Other and unknown 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 | 22.7 | – | S | S | 35.9 | – | S |
| Less than 50 lbs | 36.4 | 4.1 | 43.5 | – | S | S | S |
| 50 to 99 lbs | S | S | 49.9 | – | S | S | S |
| 100 to 499 lbs | 46.0 | 1.9 | 48.2 | – | S | S | S |
| 500 to 749 lbs | S | S | 45.3 | – | S | S | 35.9 |
| 750 to 999 lbs | S | S | S | S | S | S | 42.4 |
| 1,000 to 9,999 lbs | S | S | S | S | 39.8 | 1.9 | S |
| 10,000 to 49,999 lbs | S | S | S | S | S | S | S |
| 50,000 to 99,999 lbs | 48.3 | 3.0 | S | S | S | S | S |
| 100,000 lbs or more | 39.4 | 10.5 | S | S | 37.5 | 6.0 | 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.