What is the recommended action for ensuring safety when working near a trench?

Using barriers is crucial for ensuring safety when working near a trench because they physically prevent unauthorized access to potentially hazardous areas. Barriers can include guardrails, fences, or warning signs that delineate the trench area, thereby protecting workers and the public from accidental falls or contact with the trench.

While frequent inspections, proper training, and a reduced work crew are all important aspects of trench safety, they serve complementary roles. Frequent inspections help identify potential hazards and ensure that safety protocols are being followed. Proper training provides workers with the knowledge and skills needed to recognize risks and respond appropriately. A reduced work crew can mitigate potential issues associated with overcrowding, but it does not provide any physical protective measures.

In summary, barriers are a direct means of safeguarding individuals from entering risky zones and are thus a primary recommendation for trench safety.