What does a safe distance require according to the rules?

A safe distance is crucial for ensuring the safety of workers on the track. The requirement for a train length past workers on the track emphasizes the importance of having sufficient space between the operational train and personnel. This distance is designed to protect workers from potential hazards associated with train movements, including the risk of unauthorized movements or signals to approach.

Maintaining a distance equivalent to the length of a train helps create a buffer zone that minimizes the risk of worker injury. This practice not only reinforces safety protocols but also aligns with industry regulations aimed at ensuring that all personnel are kept at a safe distance from moving trains. The other options do not adequately address the requirement for safety concerning the positioning of workers relative to the train, as they either specify distances that are either too short or irrelevant to the workers’ safety needs.