Study on Timing of Voice Warning at Crossings

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  • 交差点におけるドライバーへの音声警告提示時間の基礎的検討
  • コウサテン ニ オケル ドライバー エ ノ オンセイ ケイコク テイジ ジカン ノ キソテキ ケントウ

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Abstract

We developed prototype of a new system to warn drivers about unseen pedestrians or bicycles at intersections. We carried out two experiments using a simple simulator system and one field experiment. In all the experiments, a warning voice was issued to the driver at various times before making a left or right turn. The drivers were asked to evaluate the timing of the warning subjectively. We also monitored accelerator and break pedal activity. The results showed that the best timing is 3 or 4 seconds before entering the intersection. The effects of the warning on the deceleration and breaking showed large individual differences and depended on the experimental conditions.

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