Location

Olympic Valley — Lake Tahoe, California

Date

28-6-2011

Session

Session 3 – Poster Session A

Abstract

One method to adjust speed perception in a driving simulator is to adjust the rendered, geometric field of view (GFOV); however, little is known regarding users’ sensitivity to changing the GFOV. The current research examined 24 licensed drivers’ subjective experience with changes in GFOV during a speed matching task when examining the relationship between speed estimate and GFOV in a small-footprint driving simulator. Following the completion of the speed-matching task, participants were asked three questions regarding (1) strategy used to match speed: “What strategies did you use to complete the speed matching task?”; (2) awareness of GFOV setting: “Did you notice any changes in the simulation at any time during the experiment?”; and (3) subjective accuracy: “How accurate do you think you were in performing the task on a one to ten scale, one being ‘extremely inaccurate’ and ten being ‘extremely accurate’?” Results indicated participants were not (directly) aware of changes in the GFOV; some misattributed the change in GFOV to a change in the vehicle’s acceleration rate. Furthermore, many participants’ cited strategies that were later categorized as ‘using optic flow’ and, in general, were unsure about their accuracy in the task.

Rights

Copyright © 2011 the author(s)

DC Citation

Proceedings of the Sixth International Driving Symposium on Human Factors in Driver Assessment, Training and Vehicle Design, June 27-30, 2011, Olympic Valley — Lake Tahoe, California. Iowa City, IA: Public Policy Center, University of Iowa, 2011: 122-128.

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Jun 28th, 12:00 AM

Subjective Data Regarding Changes in Geometric Field of View During a Speed-Matching Test

Olympic Valley — Lake Tahoe, California

One method to adjust speed perception in a driving simulator is to adjust the rendered, geometric field of view (GFOV); however, little is known regarding users’ sensitivity to changing the GFOV. The current research examined 24 licensed drivers’ subjective experience with changes in GFOV during a speed matching task when examining the relationship between speed estimate and GFOV in a small-footprint driving simulator. Following the completion of the speed-matching task, participants were asked three questions regarding (1) strategy used to match speed: “What strategies did you use to complete the speed matching task?”; (2) awareness of GFOV setting: “Did you notice any changes in the simulation at any time during the experiment?”; and (3) subjective accuracy: “How accurate do you think you were in performing the task on a one to ten scale, one being ‘extremely inaccurate’ and ten being ‘extremely accurate’?” Results indicated participants were not (directly) aware of changes in the GFOV; some misattributed the change in GFOV to a change in the vehicle’s acceleration rate. Furthermore, many participants’ cited strategies that were later categorized as ‘using optic flow’ and, in general, were unsure about their accuracy in the task.