What should be done if movement is obstructed and the hand signal disappears from view?

When movement is obstructed and the hand signal disappears from view, stopping movement immediately is the appropriate action to take. This is crucial for safety, as continuing to move without a visible signal could lead to accidents or collisions.

Hand signals are critical for maintaining communication during operations, especially in environments where visibility can be compromised. If the signal is no longer visible, it could indicate a change in conditions or that the person signaling has moved out of sight. By stopping immediately, the operator ensures that they do not proceed into a potentially dangerous situation without proper guidance.

This approach aligns with safety protocols that prioritize maintaining control and awareness of the situation at hand. It also reinforces the importance of clear communication in railway operations, where the absence of a signal should always prompt caution and a halt to movement until clarity is restored.