Hierarchy of Controls 2D — Residual Risk Simulator

Occupational safety programs rank hazard interventions by a strict hierarchy — elimination, substitution, engineering controls, administrative controls, and personal protective equipment — because each level acts on risk differently. This top-down 2D simulator renders a hazard source emitting a live particle flux across a factory floor toward a line of workers, with a real engineering barrier and a residual-risk formula (Likelihood × Severity) driving every visual: flip elimination to shut the source down entirely, dial in substitution, barrier strength, training level and PPE effectiveness, and watch the exposure count, residual risk score and risk-matrix classification update in real time as fewer or weaker hazard particles reach the workforce.