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Reliability and Models of Subjective Motion Incongruence Ratings in Urban Driving Simulations
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  • Maurice Kolff ,
  • Joost Venrooij ,
  • Markus Schwienbacher ,
  • Daan Pool ,
  • Max Mulder
Maurice Kolff
Delft University of Technology

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Joost Venrooij
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Markus Schwienbacher
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Daan Pool
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Max Mulder
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Abstract

Due to the difficulty of reproducing inertial motion of urban scenarios in moving-base driving simulators, accurate evaluation methods of the motion are required. In this paper, an open-loop driving experiment in an urban scenario is discussed, in which 61 participants evaluated the motion cueing through an overall rating and a continuous rating method. Three MCAs were tested that represent different levels of motion cueing quality. It is investigated under which conditions the continuous rating method provides reliable data in urban scenarios through the estimation of Cronbach’s Alpha and McDonald’s Omega. Results show that the worse the motion cueing is rated, the higher the reliability of that rating data is and the less the continuous rating and overall rating correlate. This suggests that subjective ratings for motion quality are dominated by (moments of) incongruent motion while congruent motion is less important. Through a forward regression approach it is shown that participants’ rating behaviour can be described by a delayed and first-order low-pass filtered response to the lateral specific force mismatch (66.9%), as well a similar response to the longitudinal specific force mismatch (33.1%). By this better understanding of incongruent motion, and the reliability of the evaluations, incongruences in urban driving simulations can be more accurately targeted and reduced.