Fatigue and sleepiness are both understood to impair driving abilities. This study designed a cross over study of long distance driving under normal and sleep restricted conditions, to study the effects of fatigue alone or fatigue associated with sleepiness on performance. Inappropriate line crossings were selected as main outcome criterion to quantify driving impairment after sleep restriction. The results show that rested non-professional drivers can drive from 9 a.m. to 7 p.m. (625 miles) with three 15 minute breaks and one 30 minute break without experiencing noticeable performance decrement. When the study's subjects were sleep restricted, a clear impact on driving skills was noted, starting from the first driving session in the morning. The study results highlight the fact that even for short durations of driving (1-2 h) and moderate time awake, sleep restriction can impair driving.


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00989592
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Apr 23 2005 12:00AM