Here’s how Lyft envisions self-driving cars communicating with pedestrians

The question of how self-driving cars will interact and communicate with humans is one that has come up before, but the answer is still up in the air. Google has been looking into this at least since 2012, and earlier this year, Uber filed a patent for using flashing lights and sounds to talk to pedestrians. Now, the United States Patent Office has granted Lyft with a patent for what it describes as an autonomous vehicle notification system.

https://techcrunch.com/2018/12/11/lyft-self-driving-car-communication-patent/