Measurement of driver calibration and the impact of feedback on drivers' estimates of performance

Accident; Analysis and Prevention
Shannon C RobertsYulan Liang

Abstract

Recent studies focused on driver calibration show that drivers are often miscalibrated, either over confident or under confident, and the magnitude of this miscalibration changes under different conditions. Previous work has demonstrated behavioral and performance benefits of feedback, yet these studies have not explicitly examined the issue of calibration. The objective of this study was to examine driver calibration, i.e., the degree to which drivers are accurately aware of their performance, and determine whether feedback alters driver calibration. Twenty-four drivers completed a series of driving tasks (pace clocks, traffic light, speed maintenance, and traffic cones) on a test track. Drivers drove three different blocks around the test track: (1) baseline block, where no participants received feedback; (2) feedback block, where half of the participants received performance feedback while the other half received no feedback; (3) a no feedback block, where no participants received feedback. Results indicated that across two different calibration measures, drivers were sufficiently calibrated to the pace clocks, traffic light, and traffic cone tasks. Drivers were not accurately aware of their performance regarding speed maint...Continue Reading

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Citations

Sep 19, 2018·The Quarterly Journal of Experimental Psychology : QJEP·Callum D MoleRichard M Wilkie
Mar 23, 2017·Traffic Injury Prevention·John G GasparJames S Higgins

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