4214 視覚情報の操作による運転行動の向上に関する検討(J23 環境知能化による安心・安全技術,J23 環境知能化による安心・安全技術)

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  • 4214 Improvement of Driver's Performance by Controlling Visual Information

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Image shape of path and image motion of optical flow are two different types of critical visual information for drivers. As for information of path, Land and Horwood (1995) reported that drivers utilize far point of their path for finding future direction as well as near point for controlling current position of the vehicle. We investigated the effect of optical flow in addition to the effects of near and far points of path on the driver's performance using a driving simulator. In results, though the optical flow in far depth contributed to comprehension of driving direction and decreased drivers' load, the optical flow in near depth made their steering inaccurate. Based on these findings, we developed a new device to decrease visual disturbance in near optical flow, and applied it on an actual car. We found that the device improved the driver's head stability and steering stability. Thus, it is suggested that we can improve driver's performance by controlling visual information.

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