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Judgments of mean speed and predictions of route choice

På svenska

Author

  • Ola Svenson
  • Gabriella Eriksson
  • Ilkka Salo
  • Ellen Peters

Summary, in English

How are driving speeds integrated when speeds vary along a route? In a first study, we examined heuristic processes used in judgments of mean speed when the mean speeds on parts of the trip varied. The judgments deviated systematically from objective mean speeds because the distances driven at different speeds were given more weight than travel time spent on the different distances. The second study showed that when there was a 10-15 min pause during a travel the effect on the mean speed decrease was underestimated for driving speeds of 90 km/h and higher. In the third study, the objective mean speeds and the subjective biased mean speed judgments were used to predict choices between routes with different speed limits. The results showed that subjective judgments predicted decisions to maximize mean speed significantly better than objective mean speeds. Finally, some applied and basic research implications of the results were discussed. (C) 2011 Elsevier Ltd. All rights reserved.

Publishing year

2011

Language

English

Pages

504-511

Publication/Series

Transportation Research. Part F: Traffic Psychology and Behaviour

Volume

14

Issue

6

Document type

Journal article

Publisher

Elsevier

Topic

  • Psychology

Keywords

  • Speed
  • Mean speed
  • Judged mean speed
  • Route choice
  • Driving
  • Traffic
  • safety

Status

Published

ISBN/ISSN/Other

  • ISSN: 1369-8478