The Role of Driver Cognitive Abilities and Distractions in Situation Awareness and Performance under Hazard Conditions
The aim of this study was to develop a more complete understanding of relat ionships between driver cognitive abilit ies, situation awareness (SA), and behaviors. Objective measures of driver SA and performance were used to assess the role of cognitive abilities and experience in three types of driving tasks when using a cell phone and encountering a hazardous situation (a vehicle intruding into a drivers lane). Results on operational driv ing performance, specifica lly lane keeping, revealed perception of the roadway to be crit ical but only after encountering a hazard situation. However, the associations between cognitive abilit ies and lane keeping did not reveal significant changes from normal to hazardous driving conditions. Results also indicated that tactical driving performance (number of successful passes under various lane conditions) was dependent on driver perception, comprehension and projection of roadway states (three levels of SA). Beyond this, tactical task behavior was found to heavily rely on working memory capacity, visual perception style, and visual processing speed. These findings indicated that tactical driving tasks require higher SA and cognitive abilities for successful performance, as compared to operational and strategic tasks. In addition, strategic task behavior only appeared to tap working memory span for mental simulat ion and pattern matching during driving. Based on the results, a relational model of SA and types of driving behavior was developed to provide a better understanding of the role of cognitive constructs in driver performance under normal and hazardous situations. The study also provides an additional theoretical basis for design of in-vehicle technologies to promote safe driving behavior.
Sangeun Jin David Kaber
Edward P. Fitts Department of Industrial and Systems EngineeringNorth Carolina State UniversityRalei Edward P. Fitts Department of Industrial and Systems Engineering North Carolina State University Ral
国际会议
17th World Congress on Ergonomics(第十七届国际人类工效学大会)
北京
英文
1-8
2009-08-09（万方平台首次上网日期，不代表论文的发表时间）