All true. Also important to note that it would be dangerous if the car was completely silent. Even if the car is autonomous and has a crazy smart AI, there can

All true. Also important to note that it would be dangerous if the car was completely silent. Even if the car is autonomous and has a crazy smart AI, there can be accidents if people outside don't notice the car. Also, any car will spin up dust from the road that people outside breath up. I think, the only way to truly increase quality of life for pedestrian and bikers is to have zones and streets which are banned for cars, like many European city centers. Relevant illustration: http://greatergreaterwashington.org/post/24948/to-a-pedestrian-a-roads-a-tiny-space-with-danger-just-beside/ http://greatergreaterwashington.org/post/24948/to-a-pedestri...