Safer work is designed. Not just demanded.

Start with the work system

HSE places human factors across the job, the individual and the organisation. That is a useful starting point for a design conversation: do not stop at whether somebody knew the rule. Ask what the task required them to see, reach, lift, remember, coordinate and decide. ^[1]

Consider a fictional packing line where labels can only be read by leaning across a conveyor. More reminders to avoid reaching do not resolve the contradiction. Moving the information, changing the hand-off or redesigning the workstation addresses a different part of the problem.

Look for the trade-offs people are managing

Observe normal production, cleaning, changeovers and recovery from a stoppage. Ask workers to explain the steps that demand improvisation. A design that works for a demonstration may fail when gloves are worn, noise rises or several jobs arrive together. These are investigation questions, not proof of a particular cause.

Involve the people who maintain, clean and supervise the system as well as its normal operators. A convenient production change can transfer a difficult exposure or manual-handling task to somebody else.

Make the proposed change testable

Describe the intended benefit before selecting a solution: less reaching, lower exposure, clearer alarm discrimination or fewer conflicting instructions. Then decide how you will assess whether the change achieved that benefit.

NIOSH prioritises elimination, substitution and engineering controls because they can reduce reliance on repeated human action. A design review should also ask whether the new control creates a different hazard. ^[2]

Use a practical review question

Rather than asking only, "Have we trained people?", ask: "What has to go right for this task to remain safe, and how have we made that reliable?" Keep the answer close to observable work. The result should be a design decision, an owner and a way to check its effect.