Just curious - assuming the car can determine who is a traffic cop - as you seem to imply by your response to the GP - how do you stop a teenager on the side of the road from holding his hand out like a traffic cop - something any driver would ignore, but how would the car? Are we installing some wireless signal in all cop uniforms? Can that be hacked? What if a cop doesn't have his special uniform on does the car just ignore him? Do we also replace all traffic cops with robots?
I'm tired of this whole "cars will be safer once machines drive because they never make mistakes" argument that seems to be common here. For many months a year where I drive the road is covered by snow and ice, and you basically have to "best guess" where the lanes are. How will cars handle that? Whats the safety order - do we dodge to avoid the kid, but force ourselves into an oncoming semi, or does the car weigh hitting the kid as an acceptable loss?
Maybe someones solved all of this and has brought the cost down so everyone can afford one - but I've seen minimal evidence so far. Just that R"obot Cars are the future and I should embrace them and stop asking questions..."