Responsibility

• Heinrich's axioms state that most accidents are caused by unsafe acts by people. A person who is injured has probably had many near misses.
  
  

Causes

• Heinrich determined four basic reasons for people-caused accidents. They are poor attitude, lack of skill, physical restrictions and poor working environment.
  
  

Prevention

• There are four fundamental ways to prevent most accidents. Engineering controls, worker training and supervision, paying attention and self-discipline.
  
  

Supervisors

• Supervisors typically have more knowledge and skills than a production worker and therefore are better equipped to take steps to prevent accidents. The four steps supervisors take include: identifying a problem, determining why the problem exists, developing a corrective measure and executing the correction.