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dc.contributor.authorTreffner, P
dc.contributor.authorBarrett, R
dc.contributor.authorPetersen, A
dc.contributor.editorP. J. Beek, P. van Wieringen
dc.date.accessioned2017-05-03T13:05:39Z
dc.date.available2017-05-03T13:05:39Z
dc.date.issued2002
dc.identifier.issn0167-9457
dc.identifier.doi10.1016/S0167-9457(02)00168-9
dc.identifier.urihttp://hdl.handle.net/10072/6637
dc.description.abstractTwo experiments addressed the relation between postural stability, perceptual sensitivity, and stability of driving performance. A vehicle was fitted with differential GPS for measuring position and speed, position sensors for measuring brake and accelerator depression, force transducers for measuring door, console and footrest bracing forces, and an accelerometer for measuring the 3D accelerations of the vehicle. In Experiment 1, we investigated whether the initiation of deceleration and the control of braking might be due to sensitivity to the perceptual variable tau, which specifies time-to-contact (TTC), and in particular, whether its first derivative, tau-dot, is used to maintain a constant deceleration profile. Using both untrained experienced drivers (EDs) and trained driving instructors from the Holden Performance Driving Centre (HPDC), results confirmed that, regardless of skill level, tau-dot was maintained at a value close to 0.5 and, as predicted by Lee [Perception 5 (1976) 437], braking was initiated when TTC赠s. In Experiment 2, we wished to quantify the purported differences in driving behaviour between EDs and HPDC instructors during a variety of everyday manoeuvres. Results indicated that instructors utilised a different cornering trajectory, a different emergency braking strategy, and were able to perform a high-speed swerve and recovery task more effectively than the EDs. In general, the instructors applied greater bracing forces using the door and console compared with EDs. The instructors also applied greater footrest forces during emergency braking than did the EDs. The greater use of bracing by instructor drivers to resist g-forces represents a strategy of active stabilisation that enhances both postural stability, as well as overall stability and consistency of driving performance. Results are discussed with regard to the dynamics of perceptual-motor coordination, and how increased stability might improve sensitivity to relevant perceptual information. We conclude that driver-training programmes that focus on increasing driver stability (as a pre-requisite for increased control) show great promise as a means to improving one's attention during driving, and hence have the potential to dramatically improve road safety in general.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.languageEnglish
dc.language.isoeng
dc.publisherElsevier Science
dc.publisher.placeNetherlands
dc.relation.ispartofpagefrom749
dc.relation.ispartofpageto784
dc.relation.ispartofjournalHuman Movement Science
dc.relation.ispartofvolume21
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchBiomedical and clinical sciences
dc.subject.fieldofresearchPsychology
dc.subject.fieldofresearchcode40
dc.subject.fieldofresearchcode32
dc.subject.fieldofresearchcode52
dc.titleStability and skill in driving
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.date.issued2015-05-04T22:03:39Z
gro.hasfulltextNo Full Text
gro.griffith.authorBarrett, Rod


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