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dc.contributor.authorGORMLEY, MICHAEL
dc.contributor.authorGORMLEY, MICHAELen
dc.date.accessioned2009-01-05T12:22:56Z
dc.date.available2009-01-05T12:22:56Z
dc.date.issued2009
dc.date.issued2009en
dc.date.submitted2009en
dc.identifier.citationFuller, R., Gormley, M., Stradling, S., Broughton, P., Kinnear, N. O?Dolan, C. & Hannigan, B., Impact of speed change on estimated journey time: Failure of drivers to appreciate relevance of initial speed, Accident Analysis and Prevention, 40, 1, 2009, 10, 14en
dc.identifier.issn0001-4575
dc.identifier.otherY
dc.identifier.otherYen
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/26479
dc.descriptionPUBLISHEDen
dc.description.abstractHigher speeds are associated with increases in the probability of crashing and the severity of the outcome. Logically drivers speed to save time, and research evidence supports this assertion. It is therefore important to investigate drivers? understanding of how speed change impacts on journey time. Since it is likely that drivers do not appreciate the reciprocal nature of the function which links these two variables, and its implications, two predictions can be made: the impact of a speed change will be underestimated at low speeds and overestimated at high speeds. This issue was addressed through four questions generated by manipulating Speed Change (increase vs. decrease) and Starting Speed (30 mph vs. 60 mph) with the participants being asked how they felt these variables would impact on journey time. These were included in a large survey addressing speed related issues. Participants were a representative quota sample of 1,005 UK drivers, interviewed by questionnaire. The findings indicated that three of the four questions produced results consistent with the predictions made. Furthermore a repeated measures factorial ANOVA indicated that there was no real appreciation of how starting speed impacted on journey time. A disordinal interaction provided evidence that drivers wrongly believed that as starting speed increased the impact of a speed rise also increased; the opposite is true. For speed decreases, drivers appeared to think that starting speed had little impact on the amount of time saved. It is recommended that these findings be integrated into driver training and speed awareness courses.en
dc.description.sponsorshipDepartment for Transport (UK)en
dc.format.extent301069 bytes
dc.format.extent10en
dc.format.extent14en
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.relation.ispartofseries40en
dc.relation.ispartofseries1en
dc.relation.ispartofseriesAccident Analysis and Preventionen
dc.rightsYen
dc.subjectDriving speeden
dc.subjectjourney time, time estimation, reasons for speedingen
dc.titleImpact of speed change on estimated journey time: Failure of drivers to appreciate relevance of initial speeden
dc.typeJournal Articleen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/gormlem
dc.identifier.peoplefinderurlhttp://people.tcd.ie/gormlemen
dc.identifier.rssinternalid52231en


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