ABSTRACT
Hazard description symbols, also called hazard alerting symbols, depict the nature of the hazard (e.g., entanglement); sometimes, they also show the consequences (e.g., rotating gears crushing fingers). Hazard avoidance symbols depict how to avoid the hazard. There are three different kinds of hazard avoidance symbols. To avoid risks, symbols may be used to tell users what actions not to take (prohibition symbols), what actions they should take (mandatory action symbols), or to convey safety equipment location and egress (information symbols).
