What is the primary concern for a worker operating alone?

The primary concern for a worker operating alone is the inability to call for assistance in emergencies. When individuals work in isolation, especially in hazardous environments, they face significant risks if an accident occurs or if they encounter a situation where immediate help is needed. This lack of immediate support can lead to severe consequences, particularly if the worker suffers an injury or experiences a medical emergency.

In isolated working conditions, the worker may not have a means to quickly communicate or reach out for help, which exacerbates the risks involved. The potential for delayed emergency response can lead to worsened health outcomes or even fatalities in serious situations. Therefore, ensuring that there are measures in place for communication and prompt assistance is crucial for the safety of individuals working alone.

Other options focus on aspects that are less critical in comparison to the safety risks posed by isolation. Limited job responsibilities does not inherently equate to increased risk, no need for communication overlooks the necessity of checks and balances in safety, and higher salary due to isolation is unlikely to be a primary concern in the context of safety training.