Which of the following is NOT associated with working limits?

The concept of working limits is integral to ensuring the safety of roadway workers by establishing designated areas where work can occur without interference from train operations. This includes clearly defined boundaries that outline where work is taking place, rules governing train movements to protect workers from accidents, and segments of track that are specifically designated for such activities.

When it comes to safety personnel, while they play a crucial role in enforcing safety protocols and overseeing the protection of workers, they are not a direct component of the working limits themselves. Working limits refer primarily to the physical and procedural boundaries established for the protection of workers rather than personnel associated with overseeing those limits. Therefore, safety personnel, while essential for overall safety and adherence to procedures, is not something that constitutes or defines the working limits.