Replication Data for: Evaluation of Autonomous Vehicles and Smart Technologies for Their Impact on Traffic Safety and Traffic Congestion [supporting datasets]
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2020-01-31
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Abstract:Our research generated demographic, survey, and behavior data related to driver performance on a simulated highway environment. Data was collected from 36 individuals, that were predominantly undergraduate and graduate students at California State University Long Beach. All identifying information has been removed from the data. Specifically, data in the selected repositories includes: - Demographic data related to participant characteristics, including age, gender, ethnicity, and driving experience. - Subjective reports of participant trust in automation adopted from Jian et al. (2000) using a 6 choice Likert-type scale. The questionnaire is designed to measure specific attitudes about automation including trust (items 2-5) and overall view of automation (items 9-12). - Subjective reports of participant workload. Participants completed a paper-based NASA Task Load Index (TLX) workload scale (see Appendix B). NASA-TLX consists of 6 subscales measuring different subjective dimensions of workload: Mental Demands, Physical Demands, Temporal Demands, Frustration, Effort, and Performance. NASA-TLX also included an initial weighting of these dimensions. A single workload score is calculated from NASA-TLX following each track by measuring the percent rating (0-100) on each dimension and calculating the average across all dimensions. Higher values indicate increased subjective mental workload. • Driver performance measures when performing obstacle avoidance maneuvers on a simulated highway. Specific performance measure for each obstacle maneuver are provided in the repository including vehicle state at the initiation and completion of maneuvers.
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