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 | 20.9 | – | 8.9 | – | 23.7 | – | 20.5 |
| Less than 50 lbs | 42.0 | 2.4 | 27.2 | – | 50.0 | 0.2 | 20.2 |
| 50 to 99 lbs | S | S | 34.3 | – | S | S | 20.3 |
| 100 to 499 lbs | 35.6 | 2.0 | 19.1 | 0.1 | 42.8 | 0.2 | 20.2 |
| 500 to 749 lbs | 25.1 | 0.4 | 13.8 | – | 16.6 | – | 17.4 |
| 750 to 999 lbs | 38.6 | 0.5 | 14.9 | – | 27.2 | – | 12.8 |
| 1,000 to 9,999 lbs | 39.3 | 3.0 | 12.0 | 1.0 | 21.0 | 1.0 | 12.9 |
| 10,000 to 49,999 lbs | 13.7 | 4.5 | 14.3 | 3.7 | 19.0 | 5.3 | 12.9 |
| 50,000 to 99,999 lbs | 10.9 | 2.1 | 14.1 | 3.3 | 17.4 | 4.9 | 16.8 |
| 100,000 lbs or more | 21.3 | 2.2 | 21.5 | 5.8 | 37.4 | 10.4 | 13.6 |
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 | 12.1 | – | 7.7 | – | 23.6 | – | 25.0 |
| Less than 50 lbs | 37.3 | 2.5 | 15.9 | – | 44.2 | – | 37.6 |
| 50 to 99 lbs | S | S | 36.4 | – | S | S | 21.7 |
| 100 to 499 lbs | 31.8 | 2.0 | 13.8 | – | 22.4 | 0.1 | 16.4 |
| 500 to 749 lbs | 26.5 | 0.5 | 9.3 | – | 16.5 | – | 15.4 |
| 750 to 999 lbs | 41.9 | 0.5 | 15.3 | – | 28.0 | – | 13.9 |
| 1,000 to 9,999 lbs | 30.1 | 2.8 | 14.0 | 1.0 | 23.8 | 1.0 | 13.9 |
| 10,000 to 49,999 lbs | 13.7 | 3.2 | 13.9 | 4.0 | 19.1 | 5.3 | 12.9 |
| 50,000 to 99,999 lbs | 11.1 | 2.1 | 13.3 | 3.6 | 17.5 | 5.1 | 17.0 |
| 100,000 lbs or more | 21.5 | 2.5 | 26.5 | 6.4 | 37.6 | 10.6 | 15.9 |
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 | 14.9 | – | 10.0 | – | 13.6 | – | 23.3 |
| Less than 50 lbs | 43.3 | 1.2 | 18.0 | – | S | S | 42.9 |
| 50 to 99 lbs | S | S | 36.9 | – | S | S | 23.4 |
| 100 to 499 lbs | 37.5 | 2.1 | 14.2 | 0.1 | 25.4 | 0.1 | 12.0 |
| 500 to 749 lbs | 31.3 | 0.4 | 9.1 | – | 13.8 | – | 15.9 |
| 750 to 999 lbs | 35.5 | 0.4 | 15.4 | – | 27.5 | – | 12.7 |
| 1,000 to 9,999 lbs | 32.8 | 2.9 | 14.0 | 1.0 | 24.0 | 1.2 | 14.0 |
| 10,000 to 49,999 lbs | 14.0 | 3.3 | 13.9 | 4.3 | 19.7 | 4.0 | 12.9 |
| 50,000 to 99,999 lbs | 10.6 | 2.9 | 13.2 | 4.5 | 15.2 | 4.4 | 18.0 |
| 100,000 lbs or more | 33.4 | 0.9 | S | S | 32.2 | 0.7 | S |
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 | 19.7 | – | 13.5 | – | 16.5 | – | 14.3 |
| Less than 50 lbs | S | S | S | S | S | S | 18.0 |
| 50 to 99 lbs | S | S | S | S | S | S | 16.4 |
| 100 to 499 lbs | S | S | 26.1 | – | 30.0 | 0.1 | 12.2 |
| 500 to 749 lbs | 39.9 | 0.6 | 22.2 | – | 16.8 | – | 13.3 |
| 750 to 999 lbs | 42.9 | 0.6 | 30.3 | – | 33.8 | 0.1 | 19.5 |
| 1,000 to 9,999 lbs | 48.3 | 4.5 | 24.6 | 1.0 | 28.9 | 1.2 | 13.9 |
| 10,000 to 49,999 lbs | 13.6 | 5.4 | 23.7 | 5.8 | 23.2 | 4.8 | 12.0 |
| 50,000 to 99,999 lbs | 9.8 | 3.3 | 17.2 | 6.7 | 22.0 | 5.7 | 15.7 |
| 100,000 lbs or more | 41.6 | 0.7 | S | S | 42.6 | 0.5 | 46.8 |
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 | 13.1 | – | 14.8 | – | 15.5 | – | 10.5 |
| Less than 50 lbs | 24.4 | 1.1 | 15.7 | – | 18.1 | – | 20.6 |
| 50 to 99 lbs | 25.0 | 0.4 | 18.2 | – | 21.0 | – | 11.0 |
| 100 to 499 lbs | 22.3 | 1.7 | 13.5 | 0.2 | 18.0 | 0.2 | 14.0 |
| 500 to 749 lbs | 15.6 | 0.4 | 12.8 | – | 13.2 | – | 24.1 |
| 750 to 999 lbs | 37.4 | 0.6 | 15.2 | – | 24.3 | 0.1 | 15.6 |
| 1,000 to 9,999 lbs | 15.3 | 2.3 | 18.1 | 1.5 | 35.4 | 1.7 | 11.6 |
| 10,000 to 49,999 lbs | 21.7 | 3.7 | 20.6 | 4.8 | 23.0 | 4.7 | 23.7 |
| 50,000 to 99,999 lbs | 18.4 | 3.5 | 16.4 | 5.5 | 13.9 | 4.4 | 12.2 |
| 100,000 lbs or more | 46.5 | 1.4 | S | S | S | S | 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 | 24.1 | – | 26.7 | – | 37.0 | – | 12.8 |
| 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 | 31.6 |
| 10,000 to 49,999 lbs | S | S | S | S | S | S | 27.9 |
| 50,000 to 99,999 lbs | S | S | S | S | S | S | 30.1 |
| 100,000 lbs or more | 23.9 | 4.0 | 27.1 | 3.0 | 37.7 | 4.6 | 12.0 |
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 | 33.5 | – | 44.7 | – | 46.8 | – | 10.2 |
| Less than 50 lbs | S | S | S | S | S | S | 9.0 |
| 50 to 99 lbs | S | S | 31.1 | 3.0 | 33.0 | 2.8 | 17.7 |
| 100 to 499 lbs | 36.0 | 5.2 | S | S | S | S | 17.2 |
| 500 to 749 lbs | S | S | S | S | S | S | 28.4 |
| 750 to 999 lbs | S | S | S | S | S | S | 28.5 |
| 1,000 to 9,999 lbs | 44.0 | 12.6 | 44.1 | 12.6 | 44.5 | 12.4 | 27.1 |
| 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 | – | – | – | – | – | – | – |
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 | S |
| Less than 50 lbs | – | – | – | – | S | S | S |
| 50 to 99 lbs | – | – | – | – | S | S | S |
| 100 to 499 lbs | – | – | – | – | 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 |
| 50,000 to 99,999 lbs | – | – | – | – | S | S | S |
| 100,000 lbs or more | – | – | – | – | 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 | 44.6 | – | S | S | S | S | 14.0 |
| Less than 50 lbs | 35.4 | 4.7 | 44.9 | 7.7 | S | S | 14.4 |
| 50 to 99 lbs | S | S | 42.9 | 4.6 | S | S | 12.5 |
| 100 to 499 lbs | S | S | 46.6 | 5.5 | 49.8 | 4.2 | 10.3 |
| 500 to 749 lbs | 48.3 | 0.2 | 44.0 | 1.5 | 48.1 | 0.9 | 25.6 |
| 750 to 999 lbs | S | S | S | S | 44.1 | 0.7 | S |
| 1,000 to 9,999 lbs | S | S | S | S | S | S | 31.8 |
| 10,000 to 49,999 lbs | 49.0 | 1.4 | S | S | 44.0 | 4.3 | S |
| 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 | 27.9 |
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 | 45.6 | – | 42.4 | – | S | S | 14.0 |
| Less than 50 lbs | 35.4 | 5.2 | 44.9 | 4.1 | S | S | 14.4 |
| 50 to 99 lbs | S | S | 42.9 | 2.3 | S | S | 12.5 |
| 100 to 499 lbs | S | S | 46.6 | 4.3 | 49.9 | 3.9 | 10.3 |
| 500 to 749 lbs | S | S | 44.5 | 1.5 | S | S | 25.2 |
| 750 to 999 lbs | S | S | S | S | S | S | 37.8 |
| 1,000 to 9,999 lbs | – | – | – | – | – | – | – |
| 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 | S | S | S | S | S | S | 36.1 |
| Less than 50 lbs | – | – | – | – | – | – | – |
| 50 to 99 lbs | – | – | – | – | – | – | – |
| 100 to 499 lbs | – | – | – | – | – | – | – |
| 500 to 749 lbs | S | S | S | S | S | S | 29.8 |
| 750 to 999 lbs | S | S | S | S | S | S | 29.8 |
| 1,000 to 9,999 lbs | S | S | S | S | S | S | 31.8 |
| 10,000 to 49,999 lbs | 49.0 | 11.0 | S | S | 44.0 | 16.3 | S |
| 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 | 29.8 |
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 | 30.9 |
| Less than 50 lbs | – | – | – | – | – | – | – |
| 50 to 99 lbs | – | – | – | – | – | – | – |
| 100 to 499 lbs | S | S | S | S | S | S | 31.6 |
| 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 |
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 | – | – | – | – | – | – | – |
| 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 | – | – | – | – | – | – | – |
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 | 31.1 |
| Less than 50 lbs | S | S | S | S | S | S | 31.1 |
| 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 | – | – | – | – | – | – | – |
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 | S | S | S | S | S | S | 31.3 |
| Less than 50 lbs | S | S | 41.6 | 1.5 | S | S | 32.4 |
| 50 to 99 lbs | S | S | S | S | S | S | 30.9 |
| 100 to 499 lbs | S | S | S | S | S | S | 30.5 |
| 500 to 749 lbs | 40.1 | 2.1 | S | S | S | S | 33.9 |
| 750 to 999 lbs | S | S | 48.3 | 0.5 | S | S | 26.8 |
| 1,000 to 9,999 lbs | S | S | 42.7 | 13.2 | S | S | 35.8 |
| 10,000 to 49,999 lbs | S | S | S | S | 38.7 | 12.2 | S |
| 50,000 to 99,999 lbs | S | S | S | S | 49.2 | 3.9 | S |
| 100,000 lbs or more | S | S | S | S | S | S | 31.6 |
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.