Which of the following is a critical safety precaution in work zones?

Providing comprehensive worker training is essential in work zones because it equips personnel with the knowledge and skills necessary to work safely in high-risk environments. Training ensures that workers are familiar with safety protocols, the proper use of personal protective equipment, and the specific hazards associated with the work zone, such as oncoming traffic or heavy machinery. With thorough training, workers can recognize potential dangers, respond appropriately, and contribute to the overall safety of themselves and others in the area.

In contrast, using standard office attire may not offer adequate protection against hazards present in construction zones. Excessive signage could potentially lead to confusion and may not enhance safety if not properly understood by drivers and workers. Establishing fixed work hours is beneficial for scheduling but does not directly impact safety measures concerning the risks involved in work zone activities. Thus, comprehensive training stands out as the most critical safety precaution in ensuring a safe working environment.