This is why Nissan's approach of providing a remote driver
will probably be necessary for many years, before full autonomy can be achieved.
http://www.cnbc.com/2017/05/11/the-prob ... umans.html
The problem with self-driving cars could turn out to be humans
...Although autonomous cars are likely to carry passengers or cargo in limited areas during the next three to five years, experts say it will take many years before robotaxis can coexist with human-piloted vehicles on most side streets, boulevards and freeways. That's because programmers have to figure out human behavior and local traffic idiosyncrasies. And teaching a car to use that knowledge will require massive amounts of data and big computing power that is prohibitively expensive at the moment.
"Driverless cars are very rule-based, and they don't understand social graces," said Missy Cummings, director of Duke University's Humans and Autonomy Lab.
Driving customs and road conditions are dramatically different across the globe, with narrow, congested lanes in European cities, and anarchy in Beijing's giant traffic jams. In India's capital, New Delhi, luxury cars share poorly marked and congested lanes with bicycles, scooters, trucks, and even an occasional cow or elephant.
Then there is the problem of aggressive humans who make dangerous moves such as cutting cars off on freeways or turning left in front of oncoming traffic. In India, for example, even when lanes are marked, drivers swing from lane to lane without hesitation.
Already there have been isolated cases of human drivers pulling into the path of cars such as Teslas, knowing they will stop because they're equipped with automatic emergency braking.
"It's hard to program in human stupidity or someone who really tries to game the technology," says John Hanson, spokesman for Toyota's autonomous car unit.
Kathy Winter, vice president of automated driving solutions for Intel, is optimistic that the cars will be able to see and think like humans before 2030.....