Document Detail

Pilot fatigue in short-haul operations: effects of number of sectors, duty length, and time of day.
MedLine Citation:
PMID:  17679568     Owner:  NLM     Status:  MEDLINE    
INTRODUCTION: There is little research on what factors are associated with fatigue in short-haul pilots. The aim was to investigate how length of duty, number of sectors, time of day, and departure airport affect fatigue levels in short-haul operations. METHODS: Pilots completed Samn-Perelli fatigue ratings prior to descent at the end of each rostered short-haul duty over a 12-wk period. Overall, 1370 usable responses were collected (67% of rostered duties) and fatigue scores were examined in relation to the departure airport, the number of sectors flown, time, and the length of duty period. RESULTS: The most important influences on fatigue were the number of sectors and duty length. These were associated with fatigue in a linear fashion. Time of day had a weaker influence, with lower levels at midday and increased fatigue later in the day. Fatigue was also higher during duties originating from an airport where pilots needed to position the night before and spend the night in a hotel. DISCUSSION: Data from the study enabled the quantification of fatigue at this critical phase of flight in duties lasting between 2 and 12 h and finishing between 08:00 to 24:00. The data obtained may be useful for identifying factors associated with fatigue, evaluating existing fatigue models, and identifying or predicting problem duties within an airline operation. The methodology used in the study may be successfully applied to gather fatigue data in other airline operations.
David M C Powell; Mick B Spencer; David Holland; Elizabeth Broadbent; Keith J Petrie
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Aviation, space, and environmental medicine     Volume:  78     ISSN:  0095-6562     ISO Abbreviation:  Aviat Space Environ Med     Publication Date:  2007 Jul 
Date Detail:
Created Date:  2007-08-07     Completed Date:  2007-09-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7501714     Medline TA:  Aviat Space Environ Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  698-701     Citation Subset:  IM; S    
Medical Unit, Air New Zealand, Auckland, New Zealand.
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MeSH Terms
Circadian Rhythm*
Fatigue / epidemiology*
Linear Models
New Zealand
Personnel Staffing and Scheduling*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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