The purpose of the transport index is to:

The transport index is a critical value that provides important safety information regarding radioactive materials during transport. It is specifically designed to indicate the highest radiation level at a distance of 1 meter from the surface of a package containing radioactive contents. This metric plays a vital role in ensuring safe handling and transport of radioactive materials by helping to assess the radiological risk to individuals near the package.

By knowing the transport index, individuals involved in the transportation and handling can determine the necessary precautions and protective measures needed to minimize exposure. This becomes particularly important when the materials are being moved in environments where multiple packages are transported simultaneously or when personnel are working in proximity to these materials.

Other options, while relevant in different contexts, do not reflect the primary purpose of the transport index. The total weight of the package, storage temperature, and resistance to damage do not provide the same critical information related to radiation safety that the transport index does. Thus, the correct answer highlights the focus on radiological safety in the handling and transport of radioactive materials.