What must workers do when notified of trains moving on an adjacent controlled track at certain speeds?

When workers are notified of trains moving on an adjacent controlled track at certain speeds, they must ensure that all work is stopped and move to the predetermined place of safety (PPS). This is a critical safety protocol designed to protect workers from the potential hazards posed by nearby train movements, especially when those trains are traveling at high speeds.

The predetermined place of safety is established to provide a secure location where workers are out of harm's way. By stopping all work promptly and relocating to this designated area, workers minimize their risk of injury from any trains that may pass by. This safety measure prioritizes worker safety and complies with established safety regulations and protocols within railway operations.

In contrast, other options, such as resuming work immediately, communicating speed limits, or continuing to work with extra caution, would not adequately protect the workers from potential danger. Each of these alternatives fails to account for the immediate risks associated with the proximity of moving trains and does not align with the essential safety guidelines designed to safeguard personnel on the job.