ERRORS AND BIAS IN ASSESSMENTS OF DANGER AND FREQUENCY OF TRAFFIC SITUATIONS. Paper presented at

Errors in the Operation of Transport Systems
Author(s)
Groeger, J.A. & Chapman, P.R.
Year
Abstract

Six groups of nine drivers took part in a laboratory study which sought to investigate the ways in which judgements are made about the frequency of accidents and particular manoeuvres in various driving situations. For some groups a sorting task was interpolated between frequency judgement tasks, which required subjects to categorize driving errors either according to whether they were or were not dangerous or did or did not commonly occur, in the contexts encountered earlier. Other groups did not have such interpolated tasks. The effects of the sorting exercise were to increase the subjective frequencies of accidents, but not subjective frequencies of particular manoeuvres in those same situations. These findings are discussed in terms of theories of heuristics and debiasing propounded by Fischoff, Kahneman, Tversky and others, and current research on drivers' assessments of risk and ability. (A) For the covering abstract of this conference see IRRD 834497.

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Publication

Library number
I 834510 [electronic version only] /83 / IRRD 834510
Source

Ergonomics, 1990 /10/11. 33 (10/11). Pp1349-63 (21 Refs.) Errors in the Operation of Transport Systems : proceedings of a CEC Workshop held at the Medical Research Council's Applied Psychology Unit, Cambridge, UK, May 26-28, 1989.

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This publication is one of our other publications, and part of our extensive collection of road safety literature, that also includes the SWOV publications.