D. Temporary lack of safety awareness at time of accident. Defective, inferior, or unsuitable tools, machinery, equipment, or materials. Hazardous methods or procedures. Inadequate guarding of machinery, equipment, work areas, etc. There are three main methods utilized in the control of accident causes.
Machines are less apt to fail than men.
It may be necessary to make mechanical revision or modifications to eliminate existing unsafe conditions, and in some cases, to prevent unsafe acts. Design of machine guards, automobile brakes, traffic signals, pressure relief valves, and hand rails are varied examples of safety engineering at work. Through adequate instruction, personnel gain useful knowledge and develop safe attitudes. Safety consciousness developed in personnel through education will be supplemented and broadened by specific additional instruction in safe working habits, practices, and skills. Usually accidents can be prevented through adequate safety engineering and education.