Accession Number : ADA323392

Title :   Procedures for Investigating and Reporting Human Factors and Fatigue Contributions to Marine Casualties.

Descriptive Note : Final rept.,

Corporate Author : COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT

Personal Author(s) : McCallum, Marvin C. ; Raby, Mireille ; Rothblum, Anita M.

PDF Url : ADA323392

Report Date : SEP 1996

Pagination or Media Count : 92

Abstract : Obtaining a better understanding of how human factors contribute to marine casualties is a key to improving marine safety. Fatigue is of special concern. This report documents research which was successful at improving the Coast Guard's methods for investigating and reporting the incidence of fatigue in marine accidents. Two hundred and seventy nine marine casualties (vessel casualties and personnel injuries) were investigated and analyzed using the new procedures. Analysis of potential indicators of fatigue identified three factors that could be combined to calculate a Fatigue Index score for casualty cases: (1) the number of fatigue symptoms reported by the mariner; (2) the number of hours worked in the 24 hours prior to the casualty; and (3) the number of hours slept in the 24 hours prior to the casualty. Application of the Fatigue Index score showed that fatigue was a contributing factor in 16% of critical vessel casualties and 33% of personnel injuries, making fatigue a significant causal factor in marine casualties. Further analysis of the fatigue data identified a number of operational conditions which appear to distinguish fatigue related casualties from casualties caused by other factors. Application of these investigation procedures to a larger sample of casualties is recommended in order to identify reliably what operational factors and what industry segments appear to be related to higher rates of fatigue related casualties.

Descriptors :   *CASUALTIES, *COAST GUARD RESEARCH, *FATIGUE(PHYSIOLOGY), HUMAN FACTORS ENGINEERING, SHIPBOARD, WOUNDS AND INJURIES, BOAT AND SHIP ACCIDENTS, ACCIDENT INVESTIGATIONS, COAST GUARD PERSONNEL, MARINE SAFETY EQUIPMENT.

Subject Categories : Psychology
      Safety Engineering
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE