Intelligent speed adaptation—Effects and acceptance by young inexperienced drivers |
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Authors: | Kristie L. Young Thomas J. Triggs |
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Affiliation: | Monash University Accident Research Centre, Building 70, Monash University, Clayton, Victoria 3800, Australia |
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Abstract: | This study assessed the relative effects of two intelligent speed adaptation (ISA) systems (informative and actively supporting) on simulated driving performance and acceptability in a sample of inexperienced and experienced drivers. Participants drove a series of simulated drives under three conditions: no ISA (control), ISA informative and ISA actively supporting. The informative system significantly reduced speed and was particularly effective in reducing top-end speeds. Comparable reductions were not found for the actively supporting system. Differences in the effectiveness and acceptability of ISA systems were noted across experienced and inexperienced drivers. The ISA systems appeared more effective at reducing speeds for experienced drivers on some road types. Experienced drivers’ subjective satisfaction ratings of the systems also remained constant over the trial, whereas the inexperienced drivers’ ratings changed after experience. There was little evidence that drivers engaged in negative behavioral adaptation and no evidence that subjective workload levels increased with ISA use. Future directions for examining the safety benefits of ISA, particularly for inexperienced drivers, are discussed. |
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Keywords: | Intelligent speed adaptation Advanced driver assistance systems Speeding Young drivers Driver experience Intelligent transport systems |
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