When’s a pedestrian not a pedestrian? When it’s a decal

Re:When’s a pedestrian not a pedestrian? When it’s a decal by jacquesm on Monday July 24, 2017 @09:47AM (#14838384)

I have been deaf in one ear for a bit (a few weeks) a while ago (aftereffects of a flu), I did not realize before then how much I rely on my hearing during driving. Do self driving cars use audio sensors?

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Re:When’s a pedestrian not a pedestrian? When it’s a decal by asadjb on Monday July 24, 2017 @09:53AM (#14838448)

I think we rely on our hearing because we can only see in one direction. With an autonomous car, you can have sensors pointing in every direction, so visual/radar/lidar clues might be all you need.

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Re:When’s a pedestrian not a pedestrian? When it’s a decal by buro9 on Monday July 24, 2017 @10:00AM (#14838517)

Sound travels around corners.

It not only reflects very well but the way some low frequencies spread out is enough to allow certain vehicles to be heard before they are visible (solid concrete could obscure the view).

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Re:When’s a pedestrian not a pedestrian? When it’s a decal by cesarb on Monday July 24, 2017 @11:08AM (#14839041)

Also, sound can give early warning of an approaching train, or of an emergency vehicle nearby, or of a truck in reverse.

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