CDL Hazardous Materials Practice Test

The transport index of a radioactive material indicates the degree of control needed during transportation. This measurement reflects the levels of radiation around the package and helps determine the safety precautions needed to protect public health and safety during transit. Specifically, it provides an indication of the distance from the package at which a person can be safely positioned without excessive exposure to radiation.

When assigning transport indices, regulatory agencies establish specific thresholds. A higher transport index signifies a greater level of radiation and thus necessitates stricter control measures such as limiting access to the transport vehicle, requiring specific routing, or implementing additional safety protocols. This ensures that individuals handling the material and the general public are kept safe from potential radiation exposure during transportation.

The other choices do not accurately convey the purpose of the transport index. It does not relate to weight limits, vehicle types, or distance limitations in terms of how far the material can be transported. Instead, it specifically focuses on the radiation safety measures needed while the material is in transit.