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It would be nice if autonomous cars could emit a "yielding to pedestrian" light. I suppose it could be an addressable strip around the whole vehicle where only the section closest to the ped actually illuminates, so the ped can know that the car sees them specifically. The equivalent of eye contact with a wave. Otherwise, the ped will be caught in a game of chicken wondering if the apparent yield is for them or for something else that will finish sooner (like a stop sign with no interfering vehicular traffic).

I do this on my bike in the city. I used to have so many scary incidents until I started doing this. It's funny how differently people treat you when they look you in the eyes.

Please don’t walk over congested highways where this system is allowed to be used.