• snooggums@lemmy.world
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    8 days ago

    But for a computer, how do you know? What is a ‘person’? What is a ‘crossing’? How do we know if the person is ‘at/on’ the crossing as opposed to simply near it or passing by?

    Most walkways are marked. The vehicle is able to identify obstructions in the road and things on the side of the road that are moving towards the road just like cross street traffic.

    If (thing) is crossing the street then stop. If (thing) is stationary near a marked crosswalk, stop and go if they don’t move in (x) seconds. If they don’t move in a reasonable amount of time, then go.

    You know, the same way people are supposed to handle the same situation.

    • hissing meerkat@sh.itjust.works
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      8 days ago

      Most crosswalks in the US are not marked, and in all places I’m familiar with vehicles must stop or yield to pedestrians at unmarked crosswalks.

      At unmarked crosswalks and marked but uncontrolled crosswalks we have to handle the situation with social cues about which direction the pedestrian wants to cross the street/road/highway and if they will feel safer crossing the road after a vehicle has passed than before (almost always for homeless pedestrians and frequently for pedestrians in moderate traffic).

      If waymo can’t figure out if something intends or is likely to enter the highway they can’t drive a car. Those can be people at crosswalks, people crossing at places other than crosswalks, blind pedestrians crossing anywhere, deaf and blind pedestrians crossing even at controlled intersections, kids or wildlife or livestock running toward the road, etc.