Which aspect of excavator operation is crucial for safety when near utility lines?

Employing extra crew members as spotters is crucial for ensuring safety during excavator operation near utility lines. This practice enhances situational awareness and allows for better communication between the operator and crew members who can keep an eye on potential hazards. Spotters can help identify the location of underground utility lines, signal to the machine operator when to stop or adjust their operation, and watch for any approaching hazards that the operator may not see from the cab of the excavator. This teamwork and visual monitoring significantly mitigate risks of accidental line strikes, which can lead to serious safety incidents and utility service interruptions.

On the other hand, using a high-speed approach may increase the risk of accidents, while installing advanced machinery does not directly address the specific safety concerns related to operating near utility lines. Avoiding any monitoring of utility markings would be unsafe and contrary to best practices, as it would eliminate the necessary precautions needed to identify and protect utility infrastructure. By having spotters, operations can be conducted more safely and efficiently when working in areas where utility lines may be present.