2011 Volume 87 Issue 4 Pages 121-135
The purpose of this study was to examine cases of increased fatigue and related factors in 103 long-haul truck drivers. The results showed that about 40 percent of long-haul truck drivers experienced fatigue due to work. The following factors were found to be significantly related to increased fatigue : (1) long driving hours, sleep deprivation, lack of holidays, lack of rest periods and naps between drives, time-related pressure, and work load ; (2) dissatisfaction with company equipment and sleeping conditions in the truck’s cabin ; (3) dissatisfaction with performance-based pay ; (4) poor health ; and (5) lack of vegetables, deviation of meals, erratic eating habits, and lack of exercise as aspects of the individuals lifestyle. The results analyzed through structural equation modeling showed that sleeping conditions had a direct influence on the degree of fatigue and health states. Further, driving conditions and organizational conditions as background factors were found to have an indirect influence on the work-related fatigue and health states.