Self-driving cars know the rules of the road — but not rules of humanity

Driving a vehicle involves more than following the rules of the road.

It is a social activity involving subtle interactions with other drivers, cyclists and pedestrians where everyone tries to avoid each other — ideally, with courtesy, sometimes with aggression.

https://www.cbc.ca/radio/quirks/self-driving-cars-rules-social-cues-1.6863403