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Risk of Vessel Accidents and Spills in the Aleutian Islands Designing a Comprehensive Risk Assessment - Special Report 293 (2009) / Chapter Skim
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D Human Reliability Analysis
Pages 189-193

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From page 189...
... provide a causal explanation for the errors to support the development of preventive or mitigating measures. As a multidisciplinary domain, HRA uses techniques and insights from cognitive psychology, behavioral sciences, human factors engineering, organizational behavior, and historical event records.
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From page 190...
... The human element, however, includes other areas of application, which, if systematically considered and treated, will decrease the potential human error and improve safety, productivity, and efficiency. Elements that affect safety and efficiency in job perfor mance include: vessel design and layout considerations, work place ambient environmental elements, management and organizational issues related to operations, and the personnel who operate the vessel or offshore installation.
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From page 191...
... These occurrences arise from the insidious accumulation of delayed-action failures lying mainly in the managerial and organizational spheres. Such latent conditions (or latent failures)
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From page 192...
... • The fact that engineered safety features, standards, administrative controls, procedures, and the like can be deficient because of latent conditions as well as active failures reflects the connection between organizational processes and defenses. Some more recent methods are an attempt to address many of these issues from a more fundamental perspective that views the identification of "errors" and determination of their causes as two sides of the same coin.
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From page 193...
... 1983. Handbook of Human Reliability Analysis with Emphasis on Nuclear Power Plant Applications.
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Key Terms

  • reliability analysis
  • human reliability
  • human element
  • latent conditions
  • nuclear regulatory

  • error probabilities
  • hra methods
  • power plant
  • accident sequence
  • regulatory commission

  • probabilistic safety
  • active failures
  • conditions combine
  • safety assessment
  • human errors

  • estimate human
  • human failure
  • human risk
  • assessing human
  • potential human

  • identify human
  • analyzing human
  • program human
  • implementing human
  • safety culture

  • historical event
  • cognitive reliability
  • procedural safeguards
  • evaluation program
  • directly changed


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