Which individual is NOT involved in the designation of school bus stops?

The designation of school bus stops typically involves various stakeholders directly connected to the operation of school transportation and the safety of students. The school district superintendent has a strategic role in overseeing school district operations, which includes transportation policies. School principals are directly responsible for the safety and logistics on their campuses, which extends to coordinating with transportation services to ensure effective bus stop locations. A parents' advisory committee usually plays a role in providing feedback or input regarding school operations, including transportation.

In contrast, the local transportation authority primarily focuses on broader transportation issues and infrastructure for the general population rather than the specific needs of a school district. While they may have insights or influence regarding transportation in the community, they are not directly involved in the designation of school bus stops, which is typically a matter handled at the school district level. Thus, this makes the local transportation authority the correct choice for the individual not involved in the designation of school bus stops.