What does the "transport index" signify in relation to Class 7 materials?

The transport index is a critical measurement used for Class 7 materials, which include radioactive substances. It signifies the degree of danger posed by the materials during transportation. The transport index is a numerical value assigned to radioactive packages that provides information about the amount of radioactivity present in the package, specifically intended for use in determining the safety and handling procedures during transport.

A higher transport index indicates a greater level of radioactivity, which necessitates specific precautions and regulations to ensure safety for the transport workers, the public, and the environment. Therefore, the transport index plays a crucial role in assessing the risks associated with shipping radioactive materials and helps in adhering to safety guidelines and regulations mandated for such hazardous materials.