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On Tour analyses of the work and rest patterns of Great Barrier Reef pilots: implications for fatigue management

A.W.Parker PhD, L.Hubinger PhD, School of Human Movement Studies, Queensland University of Technology, Brisbane, Australia.
September 30, 1998
ISBN: 0-642-47621-7

Contents

• Acknowledgements
• Summary of Results
• Rationale for Recommendations
• Recommendations

Section 1.0 Background

Section 2.0 Introduction

Section 3.0 Methodology

• 3.1 Sample
• 3.2 Log Books
• 3.3 Logbook distribution and reminders
• 3.4 Logbook development
• 3.5 Pilot testing
• 3.6 Measures
  • 3.6.1 Work assignment characteristics
  • 3.6.2 Work periods on the bridge
  • 3.6.3 Sleep periods at sea
  • 3.6.4 End of work assignment assessment
  • 3.6.5 Additional comments
  • 3.6.6 Sleep periods ashore
• 3.7 Data analysis
  • 3.7.1 Quantitative data
  • 3.7.2 Qualitative data
• 3.8 Presentation of results

Results

Section 4.0 General Characteristics

• 4.1 The sample
• 4.2 Response details
• 4.3 Limitations

Section 5.0 Overview of Work Assignments

• 5.1 Travel to and from ships per assignment
• 5.2 Total duration of work assignments
• 5.3 Percent of work assignment on pilotage duties
• 5.4 Duration of breaks between assignments
• 5.5 Starting times of work assignments and breaks
• 5.6 An indication of work and rest at sea and time onboard and ashore
• 5.7 End of work assignment ratings of stress and fatigue
  • 5.7.1 Stress
  • 5.7.2 Fatigue
• 5.8 Factors contributing to stress and/or fatigue during work assignments
  • 5.8.1 Ship and environment
  • 5.8.2 Onboard
  • 5.8.3 Travel Factors
  • 5.8.4 Other Factors

Patterns of activity on the ship

Section 6.0 Bridgework

• 6.1 Total duration, number and duration of bridge periods per assignment
• 6.2 Percent of pilotage and assignment time on the bridge
• 6.3 Percent of bridgework at night and during critical hours
• 6.4 Sea conditions during bridge periods

Section 7.0 Sleep at Sea

• 7.1 Total time in bed and total sleep time per 24 hours
• 7.2 Duration of each sleep period and number of sleep periods per 24 hours
• 7.3 Other sleep characteristics associated with fatigue
• 7.4 Timing of sleep
• 7.4.1 Percent of sleep inside 2200-0800
• 7.5 Sleep quality
• 7.6 Sleep debt
• 7.7 Sea conditions during sleep periods

Patterns of activity during assignment breaks

Section 8.0 Sleep Ashore

• 8.1 Accommodation type while ashore
• 8.2 Total time in bed and total sleep time per 24 hours
• 8.3 Duration of each sleep period and number of sleep periods per 24 hours
• 8.4 Other sleep characteristics associated with fatigue
• 8.5 Timing of sleep
• 8.5.1 Percent of sleep inside 2200-0800
• 8.6 Sleep quality

Alertness and fatigue during bridgework

Section 9.0 Measurees of Fatigue/Alertness on the Bridge

• 9.1 Alertness ratings during bridgework
• 9.2 Number of fatigue symptoms during bridgework
• 9.3 Percent of bridge periods with one or more fatigue symptoms

Section 10.0 Factors associated with high fatigue levels and low alertness levels on the bridge

• 10.1 Predictors of fatigue, stress and alertness levels on the bridge

Section 11.0 Discussion

• 11.1 Demographics
• 11.2 Work assignment characteristics
• 11.3 Duration and timing of bridgework
• 11.4 Alertness ratings
• 11.5 Sleep patterns at sea
• 11.6 Breaks between assignments
• 11.7 Sleep ashore
• 11.8 Relationship between work and sleep patterns and fatigue
• 11.9 Other factors contributing to fatigue

References

• Appendix 1 List of Tables
• Appendix 2 List of Figures
• Appendix 3 Logbook Sample [ PDF]
• Appendix 4 Personal Fatigue Checklist [ PDF]
• Appendix 5 Enhanced Data Collection based on Preliminary Modelling [ PDF]

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