Document: NUREG-0800
Document ID: eedf1a7c-578e-463a-9608-b06af6312cf1
Document Type: srp
Title: HUMAN FACTORS ENGINEERING
Source: NUREG-0800
Source URL: https://www.nrc.gov/docs/ML1310/ML13108A095.pdf
Revision Date: 2023-06
Chapter: 18
Section ID: 18.0
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CFR Title: 

Content:
s actually performed in the plant under the demands of the real work environment. (This is one of the primary concerns addressed in this new guidance.) • Traditional methods do not address well what makes situations demanding and difficult. However, in real world settings, task difficulty is an important determinant of performance and safety. • Traditional methods are well-suited to clearly-defined situations, but are less well suited to analyzing unplanned and unanticipated situations, such as situations that have not been assessed by designers and not been experienced by operations experts. Yet it’s just these types of situations that can pose the greatest risk to safety. 18.0-42 Draft Revision 3 – July 2015 Additional Information: Applicants can use or adapt a subjective workload measure to obtain SME workload estimates along workload dimensions. e. The applicant should evaluate the acceptability of workload by comparing time and workload results to the established criteria. f. The applicant should evaluate unacceptable results to determine root cause and corrective actions. Additional Information: Note that the root cause of unacceptable workload for individual scenarios may not be due to staffing levels. For example, the high workload may be due to poor HSI design rather than insufficient staff. The human engineering discrepancy (HED) evaluation process described in NUREG-0711, Section 11.4.4, can be used for this analysis. 7. Develop Conclusions about the Acceptability of Workload Levels a. Applicants should provide overall conclusions about the acceptability of workload levels and the basis for that conclusion considering: • Both time and workload analyses • Consistency of results across the different challenging scenarios • The results of HED evaluations of any findings where workload fails to meet acceptability criteria 18.0-43 Draft Revision 3 – July 2015 PAPERWORK REDUCTION ACT STATEMENT The information collections contained in the