Accession Number : ADA302810

Title :   Some Effects of 8- vs. 10-Hour Work Schedules on the Test Performance/Alertness of Air Traffic Control Specialists.

Descriptive Note : Final rept.,

Corporate Author : FEDERAL AVIATION ADMINISTRATION WASHINGTON DC OFFICE OF AVIATION MEDICINE

Personal Author(s) : Schroeder, David J. ; Rosa, Roger R. ; Witt, L. A. ; Banks, Barnett

PDF Url : ADA302810

Report Date : DEC 1995

Pagination or Media Count : 20

Abstract : A 10-hour, 4-day rotating shift schedule worked by some Air Traffic Control Specialists (ATCSs) was compared to the more traditional 8-hour, 2-2-1 rapidly rotating schedule. Measures of performance and alertness were obtained from a group of 52 ATCSs at an en route ATC center on tasks in the NIOSH fatigue test battery. Additional information on sleep patterns, mood, and somatic complaints was also gathered. Results confirm that tests comprising the NIOSH test battery are sensitive to fatigue and diurnal variations associated with a rotating shift schedule. Test performance of ATCSs on the 10-hour shift did not differ from those on the 8-hour schedule for any of the NIOSH parameters, when comparing the initial 4 days of the work week. Test performance was notably poorer on the mid-shift (night) that occurred on the final (fifth) day of the 2-2-1 8-hour schedule. For both schedules, there was evidence of changes in alertness on some of the NIOSH performance measures within work days and across days of the week. Changes in test performance and mood ratings corresponded to the decline in self-reported sleep time across the work week.

Descriptors :   *AIR TRAFFIC CONTROL SYSTEMS, *SCHEDULING, *ATTENTION, *SLEEP, *FATIGUE(PHYSIOLOGY), *EMOTIONS, TEST AND EVALUATION, SENSITIVITY, SHIFTING, PATTERNS, NIGHT, ROTATION, AIR TRAFFIC CONTROLLERS, DIURNAL VARIATIONS, FATIGUE TESTS(MECHANICS).

Subject Categories : Psychology
      Stress Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE