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 | 8.8 | – | 17.3 | – | 8.4 | – | 14.4 |
| Less than 50 lbs | 9.3 | 1.8 | 13.3 | – | 25.7 | 0.9 | 12.1 |
| 50 to 99 lbs | 9.9 | 0.8 | 9.7 | – | 27.6 | 0.5 | 14.6 |
| 100 to 499 lbs | 8.7 | 1.3 | 20.0 | 1.0 | 18.1 | 1.1 | 25.6 |
| 500 to 749 lbs | 8.5 | 0.5 | 13.2 | 0.2 | 17.4 | 0.4 | 18.0 |
| 750 to 999 lbs | 29.6 | 0.8 | 11.8 | 0.1 | 13.7 | 0.3 | 12.4 |
| 1,000 to 9,999 lbs | 16.5 | 2.2 | 10.3 | 2.1 | 8.7 | 2.4 | 9.5 |
| 10,000 to 49,999 lbs | 20.5 | 3.4 | 23.5 | 4.2 | 11.2 | 3.3 | 17.3 |
| 50,000 to 99,999 lbs | 12.3 | 0.2 | 13.4 | 1.5 | 26.9 | 0.7 | 23.8 |
| 100,000 lbs or more | 38.1 | 0.2 | 47.3 | 2.8 | 31.3 | 2.1 | S |
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 | 10.8 | – | 17.9 | – | 8.9 | – | 27.9 |
| Less than 50 lbs | 11.6 | 1.0 | 17.7 | – | 40.6 | 0.1 | 37.8 |
| 50 to 99 lbs | 11.7 | 0.5 | 11.2 | – | 22.4 | – | 23.3 |
| 100 to 499 lbs | 8.0 | 1.1 | 22.8 | 1.0 | 18.3 | 0.9 | 36.9 |
| 500 to 749 lbs | 8.8 | 0.6 | 13.3 | 0.2 | 15.1 | 0.4 | 19.1 |
| 750 to 999 lbs | 33.3 | 0.8 | 12.2 | 0.1 | 10.3 | 0.2 | 13.5 |
| 1,000 to 9,999 lbs | 16.5 | 2.8 | 10.5 | 2.1 | 8.5 | 2.7 | 10.7 |
| 10,000 to 49,999 lbs | 20.8 | 3.7 | 23.8 | 4.2 | 11.6 | 3.5 | 17.4 |
| 50,000 to 99,999 lbs | 12.3 | 0.3 | 13.6 | 1.5 | 27.3 | 0.7 | 24.0 |
| 100,000 lbs or more | 41.0 | 0.3 | S | S | 32.0 | 2.5 | S |
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 | 11.0 | – | 18.1 | – | 8.1 | – | 25.2 |
| Less than 50 lbs | 12.2 | 1.0 | 18.0 | – | 26.1 | – | 43.7 |
| 50 to 99 lbs | 12.1 | 0.3 | 11.2 | – | 23.0 | – | 25.1 |
| 100 to 499 lbs | 10.1 | 1.3 | 23.0 | 1.1 | 18.6 | 0.9 | 37.1 |
| 500 to 749 lbs | 8.7 | 0.6 | 13.3 | 0.2 | 15.1 | 0.4 | 19.2 |
| 750 to 999 lbs | 33.3 | 0.8 | 12.1 | 0.1 | 10.4 | 0.2 | 13.5 |
| 1,000 to 9,999 lbs | 16.5 | 2.9 | 10.6 | 2.2 | 8.5 | 2.8 | 10.7 |
| 10,000 to 49,999 lbs | 20.9 | 3.7 | 23.8 | 4.1 | 11.6 | 3.3 | 17.1 |
| 50,000 to 99,999 lbs | 12.3 | 0.4 | 13.6 | 1.6 | 27.3 | 0.8 | 24.0 |
| 100,000 lbs or more | 48.8 | 0.3 | S | S | 28.1 | 0.5 | 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 | 16.0 | – | 7.6 | – | 7.4 | – | 10.6 |
| Less than 50 lbs | 33.4 | 0.9 | 36.0 | – | 40.2 | – | 24.4 |
| 50 to 99 lbs | 20.1 | 0.4 | 25.1 | – | 33.7 | – | 16.4 |
| 100 to 499 lbs | 18.7 | 2.0 | 16.1 | 0.5 | 21.8 | 1.0 | 8.9 |
| 500 to 749 lbs | 13.9 | 1.2 | 19.5 | 0.2 | 18.8 | 0.5 | 9.2 |
| 750 to 999 lbs | 42.4 | 1.0 | 8.6 | 0.1 | 11.1 | 0.4 | 7.6 |
| 1,000 to 9,999 lbs | 26.9 | 3.1 | 7.5 | 1.7 | 8.6 | 2.6 | 4.5 |
| 10,000 to 49,999 lbs | 9.4 | 3.5 | 11.5 | 3.2 | 10.8 | 3.4 | 13.7 |
| 50,000 to 99,999 lbs | 20.8 | 0.4 | 17.2 | 2.5 | 27.9 | 0.8 | 23.3 |
| 100,000 lbs or more | 39.8 | 0.2 | 32.5 | 0.8 | 42.6 | 0.8 | 39.1 |
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 | 16.1 | – | 22.8 | – | 14.9 | – | 15.2 |
| Less than 50 lbs | 18.4 | 1.9 | 20.9 | – | 23.5 | 0.1 | 16.8 |
| 50 to 99 lbs | 16.6 | 0.6 | 13.7 | – | 13.7 | – | 9.8 |
| 100 to 499 lbs | 16.8 | 2.1 | 30.2 | 1.4 | 11.0 | 0.6 | 24.3 |
| 500 to 749 lbs | 10.2 | 0.3 | 16.4 | 0.2 | 22.0 | 0.5 | 16.9 |
| 750 to 999 lbs | 12.7 | 0.3 | 16.8 | 0.1 | 18.9 | 0.2 | 19.8 |
| 1,000 to 9,999 lbs | 15.5 | 4.4 | 14.0 | 3.0 | 16.9 | 4.8 | 15.1 |
| 10,000 to 49,999 lbs | 38.8 | 5.6 | 29.6 | 5.1 | 19.1 | 5.1 | 18.8 |
| 50,000 to 99,999 lbs | 13.8 | 0.8 | 13.0 | 1.6 | 35.7 | 1.3 | 31.0 |
| 100,000 lbs or more | S | S | S | S | 43.2 | 1.2 | 26.5 |
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 | 36.8 | – | 31.9 | – | 34.2 | – | 25.6 |
| Less than 50 lbs | S | S | S | S | S | S | 30.1 |
| 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 | 29.0 |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | 45.6 | 13.3 | 32.7 | 14.6 | 37.6 | 13.9 | 31.5 |
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 | – | – | – | – | – | – | – |
| 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 | 23.2 | – | 36.2 | – | 35.8 | – | 9.7 |
| Less than 50 lbs | 26.3 | 8.3 | S | S | S | S | 10.9 |
| 50 to 99 lbs | 38.8 | 3.6 | 24.6 | 2.2 | 25.3 | 5.3 | 15.5 |
| 100 to 499 lbs | 43.7 | 8.2 | 21.3 | 7.7 | 30.2 | 7.2 | 10.5 |
| 500 to 749 lbs | S | S | S | S | S | S | 43.3 |
| 750 to 999 lbs | S | S | S | S | S | S | S |
| 1,000 to 9,999 lbs | 35.7 | 0.7 | 30.1 | 3.0 | 29.1 | 3.8 | 23.3 |
| 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 | 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 | 8.3 | – | 29.7 | – | 13.7 | – | 7.8 |
| Less than 50 lbs | 9.3 | 3.8 | 21.8 | 7.5 | 28.1 | 7.0 | 7.4 |
| 50 to 99 lbs | 12.7 | 1.5 | 21.1 | 3.7 | 34.3 | 3.4 | 10.2 |
| 100 to 499 lbs | 18.5 | 2.4 | 18.4 | 6.4 | 21.1 | 4.8 | 8.9 |
| 500 to 749 lbs | 26.8 | 0.6 | 34.4 | 0.9 | 41.0 | 1.0 | 10.4 |
| 750 to 999 lbs | S | S | 39.4 | 0.7 | S | S | 24.5 |
| 1,000 to 9,999 lbs | 47.7 | – | S | S | S | S | 35.3 |
| 10,000 to 49,999 lbs | S | S | S | S | S | S | S |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | S | S | S | S | S | S | S |
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 | 8.2 | – | 10.2 | – | 14.5 | – | 7.8 |
| Less than 50 lbs | 9.3 | 3.8 | 21.8 | 5.8 | 28.1 | 6.8 | 7.4 |
| 50 to 99 lbs | 12.7 | 1.5 | 21.1 | 3.5 | 34.3 | 4.2 | 10.2 |
| 100 to 499 lbs | 18.5 | 2.4 | 18.4 | 5.1 | 21.1 | 4.8 | 8.9 |
| 500 to 749 lbs | 26.8 | 0.6 | 34.4 | 0.9 | 40.9 | 1.0 | 10.4 |
| 750 to 999 lbs | S | S | 39.7 | 0.8 | S | S | 24.9 |
| 1,000 to 9,999 lbs | S | S | S | S | S | S | S |
| 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 | 48.2 | – | S |
| Less than 50 lbs | – | – | – | – | – | – | – |
| 50 to 99 lbs | – | – | – | – | – | – | – |
| 100 to 499 lbs | – | – | – | – | – | – | – |
| 500 to 749 lbs | – | – | – | – | – | – | – |
| 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 | S | S | S | S | S | S | S |
| 50,000 to 99,999 lbs | – | – | – | – | – | – | – |
| 100,000 lbs or more | S | S | S | S | S | S | S |
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 | S |
| Less than 50 lbs | – | – | – | – | – | – | – |
| 50 to 99 lbs | – | – | – | – | – | – | – |
| 100 to 499 lbs | – | – | – | – | – | – | – |
| 500 to 749 lbs | S | S | S | S | S | S | 31.6 |
| 750 to 999 lbs | – | – | – | – | – | – | – |
| 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 | – | – | – | – | – | – | – |
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 | – | – | – | – | – | – | – |
| 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 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 | 18.3 | – | 22.9 | – | 12.9 | – | 48.9 |
| Less than 50 lbs | 21.3 | 4.1 | 45.3 | 0.7 | 30.7 | 0.2 | S |
| 50 to 99 lbs | 36.9 | 1.9 | 23.7 | 0.2 | 43.0 | – | S |
| 100 to 499 lbs | 41.2 | 4.0 | S | S | S | S | S |
| 500 to 749 lbs | 41.8 | 2.3 | S | S | S | S | 41.4 |
| 750 to 999 lbs | S | S | S | S | S | S | S |
| 1,000 to 9,999 lbs | 33.6 | 8.0 | 19.1 | 9.0 | 30.3 | 11.1 | 17.1 |
| 10,000 to 49,999 lbs | S | S | 34.2 | 9.0 | 24.9 | 10.2 | 21.7 |
| 50,000 to 99,999 lbs | S | S | S | S | S | S | 31.8 |
| 100,000 lbs or more | – | – | – | – | – | – | – |
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.