As one of a series of studies aimed at gathering data to develop human factors design guidelines for Advanced Traveler Information Systems (ATIS) and Commercial Vehicle Operations (CVO), the present study utilized a driving simulator to study CVO drivers and (1) the effects of driver fatigue and (2) the effects of mental workload on objective and subjective indices of driver performance and opinion. Fatigue was induced through sleep deprivation and through a 90- minute simulator drive. Mental workload was manipulated through driving task load and ATIS complexity. Although the results indicated degraded driving performance under the sleep-deprived condition, performance on ATIS-related tasks was not affected by sleep deprivation. The implication of this and other results are detailed. (Author/publisher)
Samenvatting