摘要: |
This report details a quantitative risk assessment conducted for transportation of selected hazardous materials on a national basis. These materials include six toxic-by-inhalation (TIH) chemicals, which account for more than 90% of the total TIH transportation-related risk; liquefied petroleum gas; gasoline; and explosives. For TIH materials, both highway and rail transportation are considered, and two classes of incidents are examined those that occur (1) during a traffic accident or a train derailment and (2) while en route from the origin to the destination, but not during an accident or derailment. For the other materials evaluated in the study, only accident-related incidents for highway transportation are considered because transportation-related risk for these materials is dominated by highway incidents. |