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Effects of speed limit variation on judged mean speed of a trip
Stockholm University, Faculty of Social Sciences, Department of Psychology.
Stockholm University, Faculty of Social Sciences, Department of Psychology.
2010 (English)In: Accident Analysis and Prevention, ISSN 0001-4575, E-ISSN 1879-2057, Vol. 42, no 2, 704-708 p.Article in journal (Refereed) Published
Abstract [en]

Three experiments were set up to study how drivers estimate mean travel speeds on trips with different speed limits. To specify, participants judged mean speeds of trips with speed limits on different distances of the trip. Study I showed that the mean speed on a road with a temporary 30km/h speed limit was overestimated if the speeds were greater than 80km/h on the rest of the trip. Study 2 replicated and extended the results to problems with more speed combinations. In Study 3 the distances of the speed limits were varied and the results showed that a temporary 30km/h speed restriction gave overestimations of the mean speeds of a trip for all combinations of original and temporary speed limits over all distances. Finally, some psychological issues and applied implications for speed regulation policies were discussed.

Place, publisher, year, edition, pages
2010. Vol. 42, no 2, 704-708 p.
Keyword [en]
Speed limit variation, Travel time, Speed estimates, Heuristics, Judgment bias
National Category
URN: urn:nbn:se:su:diva-49273DOI: 10.1016/j.aap.2009.10.019ISI: 000275510600045OAI: diva2:379461
authorCount :2Available from: 2010-12-17 Created: 2010-12-13 Last updated: 2010-12-17Bibliographically approved

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Svenson, Ola
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