What is a crucial factor in preventing accidents during maintenance operations at airports?

Adherence to safety protocols and lockout/tag-out procedures is fundamental in preventing accidents during maintenance operations at airports. These protocols are designed to ensure that equipment is properly shut off and cannot be started again until maintenance work is completed. This is particularly important in a busy environment like an airport, where equipment can pose significant risks to personnel if not properly secured.

By following these established safety procedures, workers are protected from unexpected energization or startup of machinery, which can lead to severe injuries or fatalities. Furthermore, effective lockout/tag-out practices contribute to a culture of safety within the organization, emphasizing the importance of worker awareness and accountability during maintenance tasks.

While other options may contribute to safety, such as using automated systems or scheduling during off-peak hours, they do not directly address the immediate threats posed by machinery and the critical need for ensuring that all equipment is completely deactivated throughout maintenance operations.