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Validating speed and road surface realism in VTI driving simulator III
Swedish National Road and Transport Research Institute, Traffic and road users, Human-vehicle-transport system interaction.ORCID iD: 0000-0003-4134-0303
Swedish National Road and Transport Research Institute, Traffic and road users, Vehicle technology and simulation.
Swedish National Road and Transport Research Institute, Traffic and road users, Traffic safety, society and road-user.
Swedish National Road and Transport Research Institute, Infrastructure, Infrastructure maintenance.ORCID iD: 0000-0002-5306-2753
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2012 (English)Report (Other academic)
Abstract [sv]

Nya simulatormodeller för vibrationer, ljud och grafik har utvecklats och implementerats i VTI:S fordonssimulator III. Syftet med denna studie är att validera simulatorn med avseende på hastighet och återgivandet av olika vägyteparametrar. Tjugofyra försökspersoner deltog i studien. De fick köra en och samma rutt i såväl simulator III som på verklig väg. Tre vägavsnitt med olika kvalitet på vägytan, från mycket slät till ganska ojämn, ingick i försöket. Såväl den objektiva förarparametern hastighet som olika subjektiva parametrar avseende förarens uppfattning om vägytans egenskaper (jämnhet, tysthet, komfort) jämfördes. Ett vägavsnitt med skiftande hastighetsgränser var av speciellt intresse. Ingen signifikant skillnad kunde noteras mellan körning i simulator och på verklig väg vare sig avseende hastighet (på avsitt med konstant hastighetsgräns) eller gradering av jämnhet och tysthet. För sträckan med skiftande hastighetsgränser fanns dock en signifikant skillnad mellan hastigheten i bil jämfört med hastigheten i simulator, trots liknande hastighetsprofiler. Såväl accelerationerna som retardationerna var snabbare i simulatorn. Vägkomforten graderades högre i bil än i simulator, men i båda fallen var tendensen den att slätare vägar gav högre värdering av komforten. Dessa resultat indikerar absolut validitet för graderingen av jämnhet och tysthet och för det objektiva måttet hastighet, medan relativ validitet indikerades för såväl hastighet vid skylt för hastighetsändring som för gradering av komfort.

Abstract [en]

New simulator models concerning vibration, noise and graphics have been designed and implemented in the VTI Simulator III. The objective of this study is to validate this simulator in terms of road surface realism. Twenty-four drivers participated in the study and drove the same route both in the simulator and on real roads. Three road sections ranging from very smooth to rather uneven were incorporated in the design. The comparison included the objective driving parameter speed as well as subjective parameters from questionnaires and rating scales (evenness, quietness and comfort level). A road section with five speed limit changes was of particular interest in the analyses. No statistically significant difference could be found between the simulator and the car, neither in the parameter speed (in sections with no speed limit changes) nor in the ratings evenness and quietness. Despite similar speed profiles surrounding the speed limit signs, there was a statistically significant difference between the speed in the car and in the simulator, with more rapid accelerations and decelerations in the simulator. The comfort rating was shown to be higher in the car compared to the simulator, but in both cases the general trend showed higher comfort on smoother roads. These results indicate absolute validity for the ratings evenness and quietness, and for the measure speed, and relative validity for comfort and speed surrounding speed limit signs.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2012. , 49 p.
Series
VTI rapport, ISSN 0347-6030 ; 745A
Keyword [en]
Simulator (driving), Simulation, Software, Model (not math), Evenness, Carriageway
Keyword [sv]
Körsimulatorer, Simulering, Mjukvara, Modeller, Jämnhet, Körbanor
National Category
Vehicle Engineering
Research subject
Road: Vehicles and vehicle technology
Identifiers
URN: urn:nbn:se:vti:diva-1851OAI: oai:DiVA.org:vti-1851DiVA: diva2:670642
Available from: 2013-12-03 Created: 2013-12-03 Last updated: 2016-02-25Bibliographically approved

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Ahlström, ChristerBolling, AnneSörensen, GunillaEriksson, OlleAndersson, Anders
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