<P> It is estimated that the United States alone makes over 500,000 shipments of hazardous materials every day . More than 90 % of these shipments are transported by truck , and anywhere from 5 -- 15 % of those trucks are carrying hazardous materials regulated under the HMTA . Approximately 50 % of those materials are corrosive or flammable petroleum products , while the remaining shipments represent any of the 2,700 other chemicals considered hazardous in interstate commerce . Accidents that occurred in the transportation of hazardous materials resulted in injury , death , and the destruction of property and the environment . However , the accidents were not limited to the road . The number of incidents regarding hazardous wastes was second in railway accidents behind road accidents . The passage of the HMTA ( and its subsequent amendments ) has significantly reduced the number of incidents and the gravity of those incidents with hazardous materials in transportation . </P>
<P> It is estimated that the United States alone makes over 500,000 shipments of hazardous materials every day . More than 90 % of these shipments are transported by truck , and anywhere from 5 -- 15 % of those trucks are carrying hazardous materials regulated under the HMTA . Approximately 50 % of those materials are corrosive or flammable petroleum products , while the remaining shipments represent any of the 2,700 other chemicals considered hazardous in interstate commerce . Accidents that occurred in the transportation of hazardous materials resulted in injury , death , and the destruction of property and the environment . However , the accidents were not limited to the road . The number of incidents regarding hazardous wastes was second in railway accidents behind road accidents . The passage of the HMTA ( and its subsequent amendments ) has significantly reduced the number of incidents and the gravity of those incidents with hazardous materials in transportation . </P>
according to dot what is the most common mode of transportation for hazardous materials
according to dot what is the most common mode of transportation for hazardous materials
truck
truck