What impact does a high impact detector failure have on operational procedures?

A high impact detector is designed to identify unusual or excessive force experienced by train axles as they pass over it. When such a detector fails, the operational procedures must be adjusted to ensure safety, particularly in focusing on areas where issues could arise.

Choosing the option to investigate all axles with a focus on high impact areas is crucial because it allows for a thorough assessment of the train's condition. High impact readings can indicate potential mechanical issues, such as wheel defects, misalignments, or load imbalances, all of which could pose safety risks if not addressed. By directing attention to all axles, especially those historically known to experience high impact, maintenance teams can proactively prevent accidents or equipment failures.

The other options fail to recognize the critical nature of high impact detector failures. Simply continuing normal procedures or dismissing the situation as a false alarm might overlook significant safety hazards. Limiting inspections to only the last axle would also miss potential issues elsewhere in the train that could lead to serious complications. Hence, the decision to mitigate risk through thorough investigation reflects a commitment to operational safety and responsiveness to equipment monitoring systems.