Heinrich's Domino Theory
Heinrich's Domino Theory : A theory on accident causation proposed by Heinrich in the 1920's. Heinrich's Domino Theory suggests that an accident leading to injury or damage is the result of a five stage sequence and each stage (domino) represents a linked cause. Remove any one and the sequence cannot run its course and the accident will be prevented. The five stages are; 1. Work Situation, 2. Fault of Person, 3. Unsafe Act, 4. Accident, 5. Injury or Damage.