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Prevention through design (PtD), also called safety by design usually in Europe, is the concept of applying methods to minimize occupational hazards early in the design process, with an emphasis on optimizing employee health and safety throughout the life cycle of materials and processes. [1]
In engineering, a factor of safety (FoS) or safety factor (SF) expresses how much stronger a system is than it needs to be for an intended load.Safety factors are often calculated using detailed analysis because comprehensive testing is impractical on many projects, such as bridges and buildings, but the structure's ability to carry a load must be determined to a reasonable accuracy.
Encyclopaedia of Occupational Health and Safety: The body, health care, management and policy, tools and approaches. International Labour Organization. pp. 1026–. ISBN 978-92-2-109814-0. Effective workplace safety and health management systems from the U.S. Occupational Safety and Health Administration; Related media at Wikimedia Commons:
The US Navy initiated the Military Manpower versus Hardware (HARDMAN) Methodology in 1977 to address problems with manpower, personnel and training in the service. [7] In 1980, The National Academies of Sciences, Engineering, and Medicine established the Committee on Human Factors, which was later renamed the Committee on Human Systems Integration. [8]
In the United States, the use of PHAs is mandated as one of the elements of the Occupational Safety and Health Administration (OSHA)' process safety management regulation for the identification of risks involved in the design, operation, and modification of processes that handle highly hazardous chemicals. [1]
Safety engineering is an engineering discipline which assures that engineered systems provide acceptable levels of safety. It is strongly related to industrial engineering/systems engineering, and the subset system safety engineering. Safety engineering assures that a life-critical system behaves as needed, even when components fail.
Many safety engineers have backgrounds or advanced study in other disciplines, such as occupational health and safety, construction management and civil engineering, engineering, system engineering / industrial engineering, requirements engineering, reliability engineering, maintenance, human factors, operations, education, physical and social ...
Some safety organizations provide guidance on safety-related systems, for example the Health and Safety Executive in the United Kingdom. [6] Risks of this sort are usually managed with the methods and tools of safety engineering. A safety-critical system is designed to lose less than one life per billion (10 9) hours of operation.
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