Self-driving cars learn to read the body language of people on the street

A four-lane street narrows to two to accommodate workers repairing a large pothole. One worker holds a stop sign loosely in his left hand as he waves cars through with his right. Human drivers don’t think twice about whether to follow the gesture or the sign; they move smoothly forward without stopping.

https://spectrum.ieee.org/transportation/self-driving/selfdriving-cars-learn-to-read-the-body-language-of-people-on-the-street