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Impact of geometric field of view on speed perception

Abstract : This paper deals with changes of the geometric field of view on speed perception. This study has been carried out using the SAAM dynamic driving simulator (Arts et Métiers ParisTech). SAAM provides motion cues thanks to a 6 DOF electromechanical platform and is equipped with a cylindrical screen of 150°. 20 subjects have reproduced 2 speeds (50 km/h and 90 km/h) without knowing the numerical values of these consigns, and with 5 different visual scale factors: 0.70, 0.85, 1.00, 1.15 and 1.30. This visual scale factor correspond to the ratio between the driver’s field of view covered by the screen (constant) and the geometric field of view. This study shows that this visual scale factor has a significant impact on the speed reached by the subjects and thus shows that perceived speed increases with this visual scale factor. A 0.15 modification of this factor is enough to obtain a significant effect. The modification of the geometric field of view remained unnoticed by all the subjects, which implies that this technique can be easily used to make drivers reduce their speed in driving simulation conditions. However, this technique may also modify perception of distances.
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  • HAL Id : hal-01273693, version 1
  • ENSAM : http://hdl.handle.net/10985/10563

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Florent Colombet, Damien Paillot, Frédéric Merienne, Andras Kemeny. Impact of geometric field of view on speed perception. Driving Simulation Conference, Sep 2010, Paris, France. pp.69-80. ⟨hal-01273693⟩

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