Table B-8. Estimated Measures of Reliability for Hazardous Material Shipment Characteristics by Selected UN Numbers and Mode of Transportation: 2002
[Estimates are shown as percents and are based on data from the 2002 Commodity Flow Survey]
UN 1066, NITROGEN, COMPRESSED
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 33.9 | – | 42.1 | – | S | S | 20.8 |
| Single modes | 34.0 | 0.3 | 42.1 | – | S | S | 22.3 |
| Truck | 35.2 | 4.0 | 37.3 | 7.3 | 49.7 | 1.6 | 22.4 |
| For– hire truck | S | S | S | S | S | S | 38.6 |
| Private truck | 34.4 | 12.3 | 41.2 | 10.4 | S | S | 26.3 |
| Rail | S | S | S | S | S | S | 31.6 |
| Water | S | S | S | S | S | S | 31.6 |
| Air (includes truck and air) | S | S | S | S | S | S | 29.8 |
| Pipeline | S | S | S | S | S | S | S |
| Multiple modes | S | S | S | S | S | S | 29.8 |
| Parcel, U.S.P.S. or courier | S | S | S | S | S | S | 29.8 |
| Other multiple modes | – | – | – | – | – | – | – |
| Other and unknown modes | S | S | S | S | S | S | 29.1 |
UN 1072, OXYGEN, COMPRESSED
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 38.2 | – | S | S | S | S | S |
| Single modes | 38.6 | 0.5 | S | S | S | S | S |
| Truck | 42.6 | 6.2 | S | S | S | S | S |
| For– hire truck | S | S | S | S | 46.0 | 12.3 | 35.8 |
| Private truck | 17.9 | 14.8 | 33.1 | 18.0 | S | S | 36.2 |
| Rail | – | – | – | – | – | – | – |
| Water | – | – | – | – | – | – | – |
| Air (includes truck and air) | S | S | S | S | S | S | 29.8 |
| Pipeline | S | S | S | S | S | S | S |
| Multiple modes | 45.0 | – | S | S | S | S | S |
| Parcel, U.S.P.S. or courier | S | S | S | S | S | S | S |
| Other multiple modes | S | S | S | S | S | S | 32.6 |
| Other and unknown modes | 44.3 | 0.6 | S | S | S | S | 28.2 |
UN 1075, PETROLEUM GASES
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 12.9 | – | 14.0 | – | 26.0 | – | 43.5 |
| Single modes | 12.8 | 0.5 | 13.9 | 0.3 | 26.2 | 1.2 | 40.8 |
| Truck | 18.2 | 5.4 | 21.8 | 5.4 | 45.8 | 6.1 | 39.5 |
| For– hire truck | 37.9 | 4.4 | 35.7 | 5.3 | S | S | 19.0 |
| Private truck | 17.3 | 5.0 | 26.6 | 5.2 | 46.3 | 2.4 | 29.8 |
| Rail | 32.4 | 4.3 | 29.3 | 4.9 | 28.4 | 7.8 | 6.0 |
| Water | 35.8 | 0.3 | 33.7 | 0.3 | 44.8 | 1.0 | 28.4 |
| Air (includes truck and air) | – | – | – | – | – | – | – |
| Pipeline | 21.5 | 5.4 | 20.7 | 5.8 | S | S | S |
| Multiple modes | 38.3 | 0.1 | 44.7 | 0.3 | 49.8 | 1.2 | 38.0 |
| Parcel, U.S.P.S. or courier | S | S | S | S | S | S | S |
| Other multiple modes | 38.7 | 0.1 | 44.7 | 0.3 | 49.8 | 1.2 | S |
| Other and unknown modes | S | S | 49.6 | – | 44.5 | – | S |
UN 1202, GAS OIL, DIESEL FUEL, HEATING OIL, LIGHT
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 11.3 | – | 11.1 | – | 21.5 | – | 16.0 |
| Single modes | 12.1 | 1.0 | 11.8 | 1.0 | 26.2 | 9.3 | 19.1 |
| Truck | 13.5 | 6.7 | 12.5 | 6.2 | 37.9 | 7.6 | 20.7 |
| For– hire truck | 9.5 | 2.8 | 10.4 | 2.8 | S | S | 49.2 |
| Private truck | 20.3 | 5.0 | 17.9 | 4.2 | 30.2 | 5.4 | 13.3 |
| Rail | S | S | S | S | S | S | 25.7 |
| Water | S | S | S | S | S | S | S |
| Air (includes truck and air) | – | – | – | – | – | – | – |
| Pipeline | 22.8 | 6.8 | 20.2 | 6.4 | S | S | S |
| Multiple modes | 42.2 | 1.0 | 41.1 | 1.0 | S | S | 25.6 |
| Parcel, U.S.P.S. or courier | S | S | S | S | S | S | 31.6 |
| Other multiple modes | 42.2 | 1.0 | 41.1 | 1.0 | S | S | 25.9 |
| Other and unknown modes | S | S | 46.4 | 0.7 | S | S | S |
UN 1203, GASOLINE
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 3.6 | – | 3.8 | – | 11.1 | – | 10.7 |
| Single modes | 3.5 | 0.3 | 3.6 | 0.2 | 11.5 | 1.6 | 14.3 |
| Truck | 5.1 | 2.3 | 5.9 | 2.2 | 11.7 | 5.7 | 14.6 |
| For– hire truck | 7.5 | 1.3 | 9.7 | 1.6 | 21.9 | 4.5 | 21.6 |
| Private truck | 5.9 | 2.1 | 6.0 | 1.8 | 13.4 | 2.8 | 15.2 |
| Rail | 23.9 | – | 34.9 | 0.2 | 43.3 | 1.2 | 18.3 |
| Water | 24.3 | 1.3 | 24.6 | 1.8 | 19.0 | 3.5 | S |
| Air (includes truck and air) | S | S | S | S | S | S | 30.0 |
| Pipeline | 8.1 | 1.9 | 8.0 | 2.0 | S | S | S |
| Multiple modes | 41.3 | 0.2 | 38.5 | 0.1 | 39.1 | 1.0 | 37.3 |
| Parcel, U.S.P.S. or courier | 45.6 | 0.1 | 45.2 | – | 41.0 | – | 13.4 |
| Other multiple modes | 40.8 | 0.1 | 38.6 | 0.1 | 39.3 | 1.0 | 25.7 |
| Other and unknown modes | 37.2 | 0.3 | 35.7 | 0.2 | S | S | S |
UN 1824, SODIUM HYDROXIDE SOLUTION
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 20.2 | – | 15.3 | – | 15.9 | – | 19.7 |
| Single modes | 20.7 | 1.4 | 15.7 | 1.6 | 16.6 | 3.8 | 23.2 |
| Truck | 25.9 | 4.6 | 25.6 | 4.2 | 43.7 | 4.7 | 25.2 |
| For– hire truck | 41.9 | 5.3 | 17.9 | 2.9 | 30.8 | 2.8 | 15.8 |
| Private truck | 20.2 | 5.0 | 40.3 | 3.1 | S | S | 24.2 |
| Rail | 24.9 | 4.8 | 14.4 | 5.3 | 15.9 | 7.5 | 5.4 |
| Water | 24.7 | 2.4 | 24.6 | 5.3 | 42.0 | 7.8 | 32.8 |
| Air (includes truck and air) | – | – | – | – | – | – | – |
| Pipeline | 38.1 | 0.6 | 33.6 | 1.7 | S | S | S |
| Multiple modes | 40.2 | 0.9 | S | S | S | S | S |
| Parcel, U.S.P.S. or courier | 44.4 | 0.5 | 48.7 | – | S | S | 30.6 |
| Other multiple modes | S | S | S | S | S | S | S |
| Other and unknown modes | S | S | S | S | S | S | 26.9 |
UN 1863, FUEL, AVIATION, TURBINE ENGINE
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 11.7 | – | 12.3 | – | 19.3 | – | 14.6 |
| Single modes | 12.0 | 0.6 | 12.5 | 0.6 | 19.3 | 0.3 | 16.2 |
| Truck | 9.2 | 2.4 | 11.4 | 2.9 | 23.5 | 7.1 | 19.8 |
| For– hire truck | 15.4 | 1.6 | 16.0 | 1.6 | 35.4 | 6.6 | 17.7 |
| Private truck | 21.5 | 2.2 | 28.0 | 2.8 | 25.9 | 1.3 | 32.3 |
| Rail | 39.4 | 2.6 | 39.1 | 2.7 | 40.4 | 8.1 | 23.5 |
| Water | 31.0 | 3.6 | 34.0 | 4.0 | 34.4 | 10.6 | 22.8 |
| Air (includes truck and air) | S | S | S | S | S | S | 31.6 |
| Pipeline | 17.6 | 4.7 | 18.9 | 5.5 | S | S | S |
| Multiple modes | S | S | S | S | S | S | S |
| Parcel, U.S.P.S. or courier | S | S | S | S | S | S | S |
| Other multiple modes | S | S | S | S | S | S | 30.6 |
| Other and unknown modes | S | S | S | S | S | S | 34.8 |
UN 1964,HYDROCARBON GAS MIXTURE, COMPRESSED, N.O.S.
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 33.9 | – | 36.3 | – | 32.1 | – | 15.1 |
| Single modes | 34.2 | 0.3 | 36.4 | 0.5 | 32.2 | 0.2 | 14.5 |
| Truck | 40.7 | 8.9 | S | S | 38.8 | 7.0 | 20.4 |
| For– hire truck | 19.7 | 3.6 | 29.1 | 8.0 | S | S | S |
| Private truck | S | S | S | S | S | S | 19.6 |
| Rail | 19.4 | 7.2 | 31.4 | 7.2 | 30.9 | 6.3 | 8.6 |
| Water | S | S | S | S | S | S | 46.7 |
| Air (includes truck and air) | S | S | S | S | S | S | 31.6 |
| Pipeline | 45.7 | 9.4 | 44.2 | 9.5 | S | S | S |
| Multiple modes | S | S | S | S | S | S | 29.2 |
| Parcel, U.S.P.S. or courier | S | S | S | S | S | S | 29.2 |
| Other multiple modes | – | – | – | – | – | – | – |
| Other and unknown modes | 32.7 | 0.3 | S | S | S | S | S |
UN 1993, FLAMMABLE LIQUIDS, N.O.S.
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 8.7 | – | 8.4 | – | 9.6 | – | 19.2 |
| Single modes | 8.3 | 0.8 | 8.1 | 0.9 | 10.4 | 3.3 | 11.8 |
| Truck | 7.4 | 2.0 | 6.4 | 1.5 | 12.4 | 3.4 | 13.9 |
| For– hire truck | 7.9 | 1.4 | 7.2 | 1.3 | 31.8 | 3.2 | 28.2 |
| Private truck | 9.1 | 1.4 | 8.3 | 1.3 | 12.0 | 3.4 | 12.7 |
| Rail | 21.8 | 0.4 | 21.1 | 0.4 | 25.8 | 2.0 | 10.0 |
| Water | 16.6 | 1.2 | 14.3 | 1.3 | 16.5 | 2.9 | S |
| Air (includes truck and air) | 44.8 | – | S | S | S | S | 20.5 |
| Pipeline | 16.1 | 2.5 | 17.1 | 2.7 | S | S | S |
| Multiple modes | S | S | S | S | S | S | 20.5 |
| Parcel, U.S.P.S. or courier | 31.2 | – | 26.5 | – | S | S | 22.3 |
| Other multiple modes | S | S | S | S | S | S | S |
| Other and unknown modes | 32.5 | 0.2 | 42.7 | 0.3 | 28.2 | – | 34.7 |
UN 3257, ELEVATED TEMPERATURE LIQUID, N.O.S.
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 25.4 | – | 25.6 | – | 17.8 | – | 22.9 |
| Single modes | 25.6 | 0.6 | 26.0 | 1.1 | 18.0 | 1.0 | 23.0 |
| Truck | 32.6 | 8.6 | 31.5 | 8.0 | 24.9 | 6.7 | 16.6 |
| For– hire truck | 31.6 | 8.2 | 31.4 | 7.5 | 28.3 | 4.4 | 14.1 |
| Private truck | 40.5 | 5.8 | 36.8 | 5.5 | 24.2 | 3.8 | 23.6 |
| Rail | 19.9 | 3.5 | 25.9 | 4.1 | 21.2 | 6.1 | 6.3 |
| Water | S | S | 46.7 | 7.5 | S | S | 28.1 |
| Air (includes truck and air) | – | – | – | – | – | – | – |
| Pipeline | – | – | – | – | S | S | S |
| Multiple modes | S | S | S | S | S | S | 35.2 |
| Parcel, U.S.P.S. or courier | – | – | – | – | – | – | – |
| Other multiple modes | S | S | S | S | S | S | 35.2 |
| Other and unknown modes | – | – | – | – | – | – | – |
ALL OTHER
| UN number 1, description, and mode of transportation | Value | Tons | Ton-miles | Average miles per shipment |
|||
|---|---|---|---|---|---|---|---|
| 2002
(million $) |
Percent | 2002 (thousands) |
Percent | 2002 (millions) |
Percent | ||
| All modes | 6.5 | – | 13.0 | – | 7.5 | – | 11.7 |
| Single modes | 6.8 | 0.5 | 12.8 | 0.3 | 7.2 | 1.1 | 8.8 |
| Truck | 8.0 | 2.4 | 10.0 | 2.2 | 8.4 | 2.3 | 12.6 |
| For– hire truck | 9.9 | 2.8 | 8.1 | 2.1 | 10.4 | 3.0 | 7.2 |
| Private truck | 11.7 | 2.2 | 16.1 | 1.7 | 23.4 | 1.3 | 8.3 |
| Rail | 11.7 | 1.3 | 11.6 | 1.3 | 9.7 | 2.6 | 4.4 |
| Water | 15.4 | 0.7 | 19.1 | 1.7 | 16.7 | 1.9 | 20.7 |
| Air (includes truck and air) | 20.8 | 0.2 | 40.4 | – | 41.8 | – | 7.8 |
| Pipeline | 24.3 | 1.4 | 27.0 | 2.2 | S | S | S |
| Multiple modes | 12.4 | 0.4 | 34.8 | 0.3 | 32.3 | 1.2 | 12.8 |
| Parcel, U.S.P.S. or courier | 14.0 | 0.3 | 19.3 | – | 16.8 | – | 13.3 |
| Other multiple modes | 19.7 | 0.3 | 36.3 | 0.3 | 33.1 | 1.2 | 25.5 |
| Other and unknown modes | 29.7 | 0.3 | 27.0 | 0.1 | 26.6 | 0.1 | 39.2 |
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.