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dc.contributor.authorPowell, Jared Alanen_US
dc.date.accessioned2014-03-14T20:50:41Z
dc.date.available2014-03-14T20:50:41Z
dc.date.issued1999-12-10en_US
dc.identifier.otheretd-122299-135335en_US
dc.identifier.urihttp://hdl.handle.net/10919/36412
dc.description.abstractA human factors experiment was conducted to investigate the potential benefits of using directional auditory cues in intelligent transportation system technologies in commercial vehicles. Twelve licensed commercial vehicle operators drove a commercial truck-driving simulator and were prompted to select highway numbers on a side-task display. Prompts were presented visually or aurally. Auditory prompts were presented either diotically (both ears simultaneously) or directionally (to either the left or right ear). The search task varied in map density and timing of the prompts in relation to speed limit changes. All experimental conditions were compared to a control condition containing no secondary task. Both driving performance (lane deviation, steering wheel angle, road heading angle error, accidents, and adherence to the speed limit) and secondary task performance (accuracy and response time) measures were collected. Results showed that drivers were able to respond more quickly and accurately to the search task when directional auditory cues were used. Results also showed that driving performance degrades when display density increases and that the use of directional auditory prompts lessens this deterioration of performance for high-density conditions.en_US
dc.publisherVirginia Techen_US
dc.relation.haspartFinal-etd.pdfen_US
dc.rightsI hereby grant to Virginia Tech or its agents the right to archive and to make available my thesis or dissertation in whole or in part in the University Libraries in all forms of media, now or hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertation.en_US
dc.subjectVehicle Navigationen_US
dc.subjectSpeech Recognitionen_US
dc.subjectCommercial Vehicle Operationsen_US
dc.subjectDual-task Performanceen_US
dc.subjectAuditory Displaysen_US
dc.titleThe Effect of Directional Auditory Cues on Driver Performance in a Simulated Truck Cab Environmenten_US
dc.typeThesisen_US
dc.contributor.departmentIndustrial and Systems Engineeringen_US
dc.description.degreeMaster of Scienceen_US
thesis.degree.nameMaster of Scienceen_US
thesis.degree.levelmastersen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineIndustrial and Systems Engineeringen_US
dc.contributor.committeechairCasali, John Gordonen_US
dc.contributor.committeememberKachroo, Pushkinen_US
dc.contributor.committeememberRobinson, Gary S.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-122299-135335/en_US
dc.date.sdate1999-12-22en_US
dc.date.rdate2001-01-09
dc.date.adate2000-01-09en_US


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