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Mental models of driving and speed: biases, choices and reality
Swedish National Road and Transport Research Institute, Traffic and road users, Förare och fordon, FOF.
2017 (English)Article in journal (Refereed) In press
Abstract [en]

This paper provides a review of research performed by Svenson with colleagues and others work on mental models and their practical implications. Mental models describe how people perceive and think about the world including covariances and relationships between different variables, such as driving speed and time. Research on mental models has detected the time-saving bias [Svenson, O. (1970). A functional measurement approach to intuitive estimation as exemplified by estimated time savings. It means that drivers relatively overestimate the time that can be saved by increasing speed from an already high speed, for example, 90– 130 km/h, and underestimate the time that can be saved by increasing speed from a low speed, for example, 30–45 km/h. In congruence with this finding, mean speed judgments and perceptions of mean speeds are also biased and higher speeds given too much weight and low speeds too little weight in comparison with objective reality. Replacing or adding a new speedometer in the car showing min per km eliminated or weakened the time-saving bias. Information about braking distances at different speeds did not improve overoptimistic judgments of braking capacity, but information about collision speed with an object suddenly appearing on the road did improve judgments of braking capacity. This is relevant to drivers, politicians and traffic regulators.

Place, publisher, year, edition, pages
2017.
Keyword [en]
Driver, Judgement, Speed, Travel time, Cognition, Braking distance, Collision
National Category
Applied Psychology
Research subject
80 Road: Traffic safety and accidents, 841 Road: Road user behaviour
Identifiers
URN: urn:nbn:se:vti:diva-11564DOI: 10.1080/01441647.2017.1289278Scopus ID: 2-s2.0-85012041321OAI: oai:DiVA.org:vti-11564DiVA: diva2:1073695
Available from: 2017-02-13 Created: 2017-02-13 Last updated: 2017-03-10Bibliographically approved

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Eriksson, Gabriella

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CiteExportLink to record
Permanent link

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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf