What must be done if visibility on the track is impaired for the Lone Worker?

In situations where visibility on the track is impaired for the Lone Worker, safety protocols are crucial. The correct answer emphasizes that ITD (Independent Train Detection) cannot be used when visibility is compromised. This is essential because ITD relies on visual confirmation of the track and surrounding conditions to ensure safe operations. If visibility is impaired, relying on ITD could lead to dangerous assumptions about the safety of the track.

When visibility is compromised, alternative measures must be taken to ensure the safety of the Lone Worker. While caution, communication with the control center, and assessment of the situation are important aspects of dealing with impaired visibility, the specific limitation regarding ITD clearly highlights the need for heightened safety precautions. Thus, stopping operations or relying on other forms of communication or monitoring becomes necessary instead of using ITD, which could risk safety under diminished visibility conditions.