Table B-5a. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Selected State of Origin: 2002
Monday, July 2, 2012
Table B-5a. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Selected State of Origin: 2002
[Estimates are shown as percents and are based on data from the 2002 Commodity Flow Survey]
| State of origin | 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 | ||
| Total | 3.0 | – | 4.2 | – | 4.4 | – | 7.1 |
| Texas | 12.8 | 1.9 | 15.9 | 2.5 | 11.3 | 2.3 | 12.7 |
| Louisiana | 7.4 | 0.5 | 7.9 | 0.8 | 10.1 | 1.6 | 33.9 |
| California | 9.1 | 1.0 | 10.8 | 1.1 | 12.3 | 0.7 | S |
| Illinois | 11.7 | 0.6 | 15.3 | 0.7 | 22.6 | 1.3 | S |
| New Jersey | 15.4 | 0.5 | 22.0 | 1.0 | 27.3 | 0.9 | 29.6 |
| Ohio | 10.9 | 0.5 | 15.6 | 0.6 | 32.2 | 0.6 | 44.5 |
| Indiana | 26.3 | 0.7 | 32.6 | 1.0 | 31.6 | 0.6 | 22.7 |
| Michigan | 24.0 | 0.8 | 19.4 | 0.5 | 48.1 | 0.8 | 24.4 |
| Florida | 14.1 | 0.4 | 12.7 | 0.3 | 14.3 | 0.1 | 31.0 |
| Tennessee | 15.7 | 0.4 | 25.1 | 0.5 | 24.9 | 0.6 | 20.6 |
| Washington | 13.0 | 0.3 | 13.0 | 0.4 | 16.6 | 0.3 | S |
| Pennsylvania | 18.5 | 0.7 | 20.5 | 0.4 | 26.6 | 0.6 | 21.2 |
| New York | 17.7 | 0.5 | 26.5 | 0.6 | 41.0 | 1.2 | 42.5 |
| Georgia | 8.9 | 0.2 | 16.4 | 0.3 | 24.9 | 0.3 | 33.5 |
| Utah. | 23.7 | 0.4 | 24.2 | 0.5 | 38.0 | 1.2 | 27.7 |
| Kentucky | 13.4 | 0.3 | 24.1 | 0.5 | 32.7 | 0.4 | S |
| Mississippi | 17.2 | 0.3 | 19.9 | 0.4 | 37.1 | 1.8 | S |
| Alabama | 23.0 | 0.3 | 20.0 | 0.3 | 20.6 | 0.2 | 28.3 |
| North Carolina | 17.6 | 0.4 | 18.5 | 0.3 | 26.1 | 0.3 | 37.1 |
| West Virginia | 38.4 | 0.2 | S | S | S | S | S |
| All other states | 3.6 | 0.7 | 5.3 | 1.1 | 8.6 | 1.5 | 18.9 |
KEY:
– Represents an estimate equal to zero or less than
1 unit of measure.
S Estimate does not meet publication standards because of highly sampling
variability or poor response quality.
CV Coefficient of variation of number
NOTE: The Introduction and appendixes give information on 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, Hazmat Data, December 2004.