Judgments of mean speed and predictions of route choice
2011 (English)In: Transportation Research Part F: Traffic Psychology and Behaviour, ISSN 1369-8478, Vol. 14, no 6, 504-511 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 14, no 6, 504-511 p.
speed, mean speed, judged mean speed, route choice, driving, traffic safety
Research subject Psychology
IdentifiersURN: urn:nbn:se:su:diva-70881DOI: 10.1016/j.trf.2011.05.002ISI: 000297442800008OAI: oai:DiVA.org:su-70881DiVA: diva2:483443
This research was supported by grants from Bergvalls Stiftelse and the Swedish Research Council and by Grants to Decision Research. The authors want to thank Maria Nyberg and Anna-Lena Erixon for their kind assistance in data collection and analysis. 2012-01-252012-01-242014-02-14Bibliographically approved